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U.S. Securities and Exchange Commission
Washington, D.C. 20549
Form 40-F
REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934
OR
ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2020
TC ENERGY CORPORATION
(Commission File Number 1-31690)

TRANSCANADA PIPELINES LIMITED
(Commission File Number 1-8887)
(Exact name of Registrant as specified in its charter)
Canada
(Province or other jurisdiction of incorporation or organization)
4922, 4923, 4924, 5172
(Primary Standard Industrial Classification Code Number (if applicable))
Not Applicable
(TC Energy Corporation)
(I.R.S. Employer Identification Number (if applicable))
52-2179728
(TransCanada PipeLines Limited)
(I.R.S. Employer Identification Number (if applicable))
TC Energy Tower, 450 - 1 Street S.W.
Calgary, Alberta, Canada, T2P 5H1
(403920-2000
(Address and telephone number of Registrant's principal executive offices)
TransCanada PipeLine USA Ltd., 700 Louisiana Street, Suite 700
Houston, Texas, 77002-2700; (832320-5201
(Name, address (including zip code) and telephone number (including area code)
of agent for service in the United States)
Securities registered or to be registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Shares (including Rights
under Shareholder Rights Plan) of
TC Energy Corporation
TRPNew York Stock Exchange

Securities registered or to be registered pursuant to Section 12(g) of the Act: None
Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:
Debt Securities of TransCanada PipeLines Limited

For annual reports, indicate by check mark the information filed with this Form:
Annual information form
Audited annual financial statements
Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the Annual report.
At December 31, 2020, 940,064,042 common shares;
14,577,184 Cumulative Redeemable First Preferred Shares, Series 1;
7,422,816 Cumulative Redeemable First Preferred Shares, Series 2;
9,997,177 Cumulative Redeemable First Preferred Shares, Series 3;
4,002,823 Cumulative Redeemable First Preferred Shares, Series 4;
12,070,593 Cumulative Redeemable First Preferred Shares, Series 5;
1,929,407 Cumulative Redeemable First Preferred Shares Series 6;
24,000,000 Cumulative Redeemable First Preferred Shares Series 7;
18,000,000 Cumulative Redeemable First Preferred Shares Series 9;
10,000,000 Cumulative Redeemable First Preferred Shares, Series 11;
20,000,000 Cumulative Redeemable First Preferred Shares, Series 13; and
40,000,000 Cumulative Redeemable First Preferred Shares, Series 15
of TC Energy Corporation were issued and outstanding.

At December 31, 2020, 902,108,711 common shares of TransCanada PipeLines Limited,
which were all owned by TC Energy Corporation, were issued and outstanding.

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes ☒    No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes ☒    No ☐

Indicate by check mark whether the Registrant is an emerging growth company as defined in Rule 12b-2 of the Exchange Act.
Emerging growth company

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act.

†The term "new or revised financial accounting standard" refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.






The documents (or portions thereof) forming part of this Form 40-F are incorporated by reference into the following registration statements under the Securities Act of 1933, as amended:
FormRegistration No.
S-8333-5916
S-8333-8470
S-8333-9130
S-8333-151736
S-8333-184074
S-8333-227114
S-8333-237979
F-333-13564
F-3333-6132
F-4333-252004
F-10333-151781
F-10333-161929
F-10333-208585
F-10333-235546
F-10333-250988
F-10333-252123


EXPLANATORY NOTE
TransCanada PipeLines Limited (“TransCanada PipeLines”) is a wholly owned subsidiary of TC Energy Corporation (“TC Energy”). As of the date of filing of this Form 40-F, TransCanada PipeLines is relying on the continuous disclosure documents filed by TC Energy pursuant to an exemption from the requirements of National Instrument 51-102 - Continuous Disclosure Obligations and as provided in the decision of the Alberta Securities Commission and the Ontario Securities Commission in Re TransCanada Corporation, 2019 ABASC 1, issued on January 3, 2019. Consistent with the exemptive relief, information contained in this Form 40-F is that provided by TC Energy except as indicated below.



AUDITED CONSOLIDATED ANNUAL FINANCIAL STATEMENTS AND
MANAGEMENT'S DISCUSSION & ANALYSIS
Except sections specifically referenced below which shall be deemed incorporated by reference herein and filed, no other portion of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements to shareholders, except as otherwise specifically incorporated by reference in the TC Energy Annual information form, shall be deemed filed with the U.S. Securities and Exchange Commission (the "Commission") as part of this report under the Exchange Act.
A.    Audited Annual Financial Statements
For audited consolidated financial statements, including the auditors' report, see pages 111 through 192 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements included herein.
B.    Management's Discussion and Analysis
For management's discussion and analysis, see pages 9 through 110 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements included herein under the heading "Management's discussion and analysis".
C.    Management's Report on Internal Control Over Financial Reporting
For management's report on internal control over financial reporting, see "Management's Report on Internal Control over Financial Reporting" that accompanies the audited consolidated financial statements on page 111 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements included herein.
UNDERTAKING
Each Registrant undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commission staff, information relating to: the securities registered pursuant to Form 40-F; the securities in relation to which the obligation to file an annual report on Form 40-F arises; or transactions in said securities.
DISCLOSURE CONTROLS AND PROCEDURES AND INTERNAL CONTROL OVER FINANCIAL REPORTING
For information on disclosure controls and procedures and management's annual report on internal control over financial reporting, see "Other information - Controls and Procedures" on page 98 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements.
AUDIT COMMITTEE FINANCIAL EXPERT
Each Registrant's Board of Directors has determined that it has at least one audit committee financial expert serving on its Audit committee. Ms. Susan C. Jones, Mr. John E. Lowe, Ms. Una Power and Mr. Thierry Vandal have been designated audit committee financial experts and are independent, as that term is defined by the New York Stock Exchange's listing standards applicable to each Registrant. The Commission has indicated that the designation of Ms. Jones, Mr. Lowe, Ms. Power and Mr. Vandal as audit committee financial experts does not make Ms. Jones, Mr. Lowe, Ms. Power or Mr. Vandal "experts" for any purpose, impose any duties, obligations or liability on Ms. Jones, Mr. Lowe, Ms. Power or Mr. Vandal that are greater than those imposed on members of the Audit committee and Board of Directors who do not carry this designation or affect the duties, obligations or liability of any other member of the Audit committee.
CODE OF ETHICS
The Registrants have adopted a code of business ethics ("Code") for their directors, officers, employees and contractors. The Registrants' Code is available on its website at www.tcenergy.com and any person can obtain the Code without charge upon request from the Corporate Secretary of TC Energy. No waivers have been granted from any provision of the Code during the 2020 fiscal year.
PRINCIPAL ACCOUNTANT FEES AND SERVICES
For information on principal accountant fees and services, see "Audit committee - Pre-approval Policies and Procedures" and "Audit committee - External Auditor Service Fees" on page 35 of the TC Energy Annual information form.
OFF-BALANCE SHEET ARRANGEMENTS
The Registrants have no off-balance sheet arrangements, as defined in this Form, other than the guarantees and commitments described in Note 28 of the Notes to the audited consolidated financial statements attached to this Form 40-F and incorporated herein by reference.
TABULAR DISCLOSURE OF CONTRACTUAL OBLIGATIONS
For information on tabular disclosure of contractual obligations, see "Financial Condition - Contractual obligations" in Management's discussion and analysis on page 84 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements.



IDENTIFICATION OF THE AUDIT COMMITTEE
Each Registrant has a separately-designated standing Audit committee. The members of each Audit committee as of February 17, 2021 (unless otherwise indicated) are:
Chair:
Members:
J.E. Lowe
S. Crétier
M.R. Culbert(1)
S.C. Jones(2)
R. Limbacher
U. Power
T. Vandal
(1) Mr. Culbert was appointed as a member of the Audit Committee on May 1, 2020.
(2) Ms. Jones joined the committee as an observer effective May 1, 2020 and as a member effective February 17, 2021. Ms. Jones did not vote on any matters in 2020 considered by the committee.
FORWARD-LOOKING INFORMATION
We disclose forward-looking information to help the reader understand management's assessment of our future plans and financial outlook, and our future prospects overall.
Statements that are forward-looking are based on certain assumptions and on what we know and expect today and generally include words like anticipate, expect, believe, may, will, should, estimate or other similar words.
Forward-looking statements included or incorporated by reference in this document include information about the following, among other things:
our financial and operational performance, including the performance of our subsidiaries
expectations about strategies and goals for growth and expansion
expected cash flows and future financing options available, including portfolio management
expected dividend growth
expected access to and cost of capital
expected costs and schedules for planned projects, including projects under construction and in development
expected capital expenditures, contractual obligations, commitments and contingent liabilities
expected regulatory processes and outcomes
expected outcomes with respect to legal proceedings, including arbitration and insurance claims
the expected impairment charge for Keystone XL in first quarter 2021
the expected impact of future tax and accounting changes
expected industry, market and economic conditions
the expected impact of COVID-19.
Forward-looking statements do not guarantee future performance. Actual events and results could be significantly different because of assumptions, risks or uncertainties related to our business or events that happen after the date of this document.
Our forward-looking information is based on the following key assumptions, and subject to the following risks and uncertainties:
Assumptions
regulatory decisions and outcomes
planned and unplanned outages and the use of our pipeline, power and storage assets
integrity and reliability of our assets
anticipated construction costs, schedules and completion dates
access to capital markets, including portfolio management
expected industry, market and economic conditions
inflation rates and commodity prices
interest, tax and foreign exchange rates
nature and scope of hedging
expected impact of COVID-19.




Risks and uncertainties
our ability to successfully implement our strategic priorities and whether they will yield the expected benefits
our ability to implement a capital allocation strategy aligned with maximizing shareholder value
the operating performance of our pipeline, power and storage assets
amount of capacity sold and rates achieved in our pipeline businesses
the amount of capacity payments and revenues from our power generation assets due to plant availability
production levels within supply basins
construction and completion of capital projects
cost and availability of labour, equipment and materials
the availability and market prices of commodities
access to capital markets on competitive terms
interest, tax and foreign exchange rates
performance and credit risk of our counterparties
regulatory decisions and outcomes of legal proceedings, including arbitration and insurance claims
our ability to effectively anticipate and assess changes to government policies and regulations, including those related to the environment and COVID-19
our ability to realize the value of tangible assets and contractual recoveries from impaired assets, including Keystone XL
competition in the businesses in which we operate
unexpected or unusual weather
acts of civil disobedience
cyber security and technological developments
economic conditions in North America as well as globally
global health crises, such as pandemics and epidemics, including COVID-19 and the unexpected impacts related thereto.
You can read more about these factors and others in reports we have filed with Canadian securities regulators and the Commission.
As actual results could vary significantly from the forward-looking information, you should not put undue reliance on forward-looking information and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law.









DOCUMENTS FILED AS PART OF THIS REPORT
EXHIBITS
13.1
13.2
13.3
23.1
31.1
31.2
32.1
32.2
101.SCHInline XBRL Taxonomy Extension Schema Document.
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEFInline XBRL Taxonomy Definition Linkbase Document.
101.LABInline XBRL Taxonomy Extension Label Linkbase Document.
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document.
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).




SIGNATURES
Pursuant to the requirements of the Exchange Act, each Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual report to be signed on its behalf by the undersigned, thereto duly authorized, in the City of Calgary, Province of Alberta, Canada.
 TC ENERGY CORPORATION
TRANSCANADA PIPELINES LIMITED
(Registrants)
 By:/s/ DONALD R. MARCHAND
  
DONALD R. MARCHAND
Executive Vice-President, Strategy & Corporate Development and Chief Financial Officer
Date: February 18, 2021

Document
EXHIBIT 13.1


TC Energy Corporation
2020 Annual information form
February 17, 2021




















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Contents
TC ENERGY CORPORATION
Power and Storage
BUSINESS OF TC ENERGY
Power and Storage
Health, safety, sustainability and environmental protection and social policies
Fitch
DBRS
TC Energy Annual information form 2020 | 1


Presentation of information
Throughout this Annual information form (AIF), the terms, we, us, our, the Company and TC Energy mean TC Energy Corporation and its subsidiaries. In particular, TC Energy includes references to TransCanada PipeLines Limited (TCPL). The term subsidiary, when referred to in this AIF, with reference to TC Energy means direct and indirect wholly-owned subsidiaries of, and legal entities controlled by, TC Energy or TCPL, as applicable.
Unless otherwise noted, the information contained in this AIF is given at or for the year ended December 31, 2020 (Year End). Amounts are expressed in Canadian dollars, unless otherwise indicated. Information in relation to metric conversion can be found at Schedule A to this AIF. The Glossary found at the end of this AIF contains certain terms defined throughout this AIF and abbreviations and acronyms that may not otherwise be defined in this document.
Certain portions of TC Energy's management's discussion and analysis dated February 17, 2021 (MD&A) are incorporated by reference into this AIF as stated below. The MD&A can be found on SEDAR (www.sedar.com) under TC Energy's profile.
Financial information is presented in accordance with United States (U.S.) generally accepted accounting principles (GAAP). We use certain financial measures that do not have any standardized meaning under GAAP and therefore they may not be comparable to similar measures presented by other entities. Refer to the About this document – Non-GAAP measures section of the MD&A for more information about the non-GAAP measures we use and a reconciliation to their GAAP equivalents, which section of the MD&A is incorporated by reference herein.
Forward-looking information
This AIF, including the MD&A disclosure incorporated by reference herein, contains certain information that is forward-looking and is subject to important risks and uncertainties. We disclose forward-looking information to help the reader understand management’s assessment of our future plans and financial outlook, and our future prospects overall.
Statements that are forward-looking are based on certain assumptions and on what we know and expect today and generally include words like anticipate, expect, believe, may, will, should, estimate or other similar words.
Forward-looking statements included or incorporated by reference in this AIF include information about the following, among other things:
our financial and operational performance, including the performance of our subsidiaries
expectations about strategies and goals for growth and expansion
expected cash flows and future financing options available, including portfolio management
expected dividend growth
expected access to and cost of capital
expected costs and schedules for planned projects, including projects under construction and in development
expected capital expenditures, contractual obligations, commitments and contingent liabilities
expected regulatory processes and outcomes
expected outcomes with respect to legal proceedings, including arbitration and insurance claims
the expected impairment charge for Keystone XL in first quarter 2021
the expected impact of future tax and accounting changes
expected industry, market and economic conditions
the expected impact of COVID-19.
Forward-looking statements do not guarantee future performance. Actual events and results could be significantly different because of assumptions, risks or uncertainties related to our business or events that happen after the date of this AIF.
2 | TC Energy Annual information form 2020


Our forward-looking information is based on the following key assumptions, and subject to the following risks and uncertainties:
Assumptions
regulatory decisions and outcomes
planned and unplanned outages and the use of our pipeline, power and storage assets
integrity and reliability of our assets
anticipated construction costs, schedules and completion dates
access to capital markets, including portfolio management
expected industry, market and economic conditions
inflation rates and commodity prices
interest, tax and foreign exchange rates
nature and scope of hedging
expected impact of COVID-19.
Risks and uncertainties
our ability to successfully implement our strategic priorities and whether they will yield the expected benefits
our ability to implement a capital allocation strategy aligned with maximizing shareholder value
the operating performance of our pipeline, power and storage assets
amount of capacity sold and rates achieved in our pipeline businesses
the amount of capacity payments and revenues from our power generation assets due to plant availability
production levels within supply basins
construction and completion of capital projects
cost and availability of labour, equipment and materials
the availability and market prices of commodities
access to capital markets on competitive terms
interest, tax and foreign exchange rates
performance and credit risk of our counterparties
regulatory decisions and outcomes of legal proceedings, including arbitration and insurance claims
our ability to effectively anticipate and assess changes to government policies and regulations, including those related to the environment and COVID-19
our ability to realize the value of tangible assets and contractual recoveries from impaired assets, including Keystone XL
competition in the businesses in which we operate
unexpected or unusual weather
acts of civil disobedience
cyber security and technological developments
economic conditions in North America as well as globally
global health crises, such as pandemics and epidemics, including COVID-19 and the unexpected impacts related thereto.
You can read more about these factors and others in the MD&A and in other reports we have filed with Canadian securities regulators and the SEC.
As actual results could vary significantly from the forward-looking information, you should not put undue reliance on forward-looking information and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law.
TC Energy Annual information form 2020 | 3


TC Energy Corporation
CORPORATE STRUCTURE
Our head office and registered office are located at 450 – 1 Street S.W., Calgary, Alberta, T2P 5H1. TC Energy was incorporated pursuant to the provisions of the Canada Business Corporations Act (CBCA) on February 25, 2003 in connection with a plan of arrangement with TCPL (Arrangement), which established TC Energy as the parent company of TCPL. The Arrangement was approved by TCPL common shareholders on April 25, 2003 and, following court approval and the filing of Articles of Arrangement, the Arrangement became effective on May 15, 2003. TCPL continues to carry on business as the principal operating subsidiary of TC Energy. TC Energy does not hold any material assets directly other than the common shares of TCPL and receivables from certain of TC Energy's subsidiaries.
INTERCORPORATE RELATIONSHIPS
The following diagram presents the name and jurisdiction of incorporation, continuance or formation of TC Energy’s principal subsidiaries as at Year End. Each of the subsidiaries shown has total assets that exceeded 10 per cent of the consolidated assets of TC Energy as at Year End or revenues that exceeded 10 per cent of the consolidated revenues of TC Energy as at Year End. TC Energy beneficially owns, controls or directs, directly or indirectly, 100 per cent of the voting shares or units in each of these subsidiaries.
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TC Energy Corporation Canada TransCanada PipeLines Limited Canada TransCanada PipeLine USA Ltd. Nevada TransCanada Oil Pipelines Inc. Delaware Columbia Pipeline Group, Inc. Delaware Columbia Gas Transmission, LLC Delaware NOVA Gas Transmission Ltd. Alberta 7016714 Alberta Ltd. Alberta TransCanada Energy Ltd. Canada TransCanada Energy Investments Ltd. Canada TransCanada Mexican Investments Ltd. Alberta 1
The above diagram does not include all of the subsidiaries of TC Energy. The total assets and revenues of excluded subsidiaries in the aggregate did not exceed 20 per cent of the consolidated assets of TC Energy as at Year End or consolidated revenues of TC Energy as at Year End.




1 TransCanada Mexican Investments Ltd. assets and revenues did not exceed 10 per cent of the consolidated assets or revenues of TC Energy as at Year End but has been included so that the total revenues of excluded subsidiaries did not exceed the threshold of less than 20 per cent of the consolidated revenues of TC Energy.
4 | TC Energy Annual information form 2020


General development of the business
We operate in three core businesses – Natural Gas Pipelines, Liquids Pipelines and Power and Storage. In order to provide information that is aligned with how management decisions about our businesses are made and how performance of our businesses is assessed, our results are reflected in five operating segments: Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, Mexico Natural Gas Pipelines, Liquids Pipelines and Power and Storage. We also have a Corporate segment consisting of corporate and administrative functions that provide governance, financing and other support to TC Energy's business segments.
Natural Gas Pipelines and Liquids Pipelines are principally comprised of our respective natural gas and liquids pipelines in Canada, the U.S. and Mexico, as well as our regulated natural gas storage operations in the U.S. Power and Storage includes our power operations and our unregulated natural gas storage business in Canada.
Summarized below are significant developments that have occurred in our Natural Gas Pipelines, Liquids Pipelines and Power and Storage businesses, respectively, and certain acquisitions, dispositions, events or conditions which have had an influence on those developments, during the last three financial years and year to date in 2021. Further information about developments in our business, including changes that we expect will occur in 2021, can be found in the Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, Mexico Natural Gas Pipelines, Liquids Pipelines and Power and Storage sections of the MD&A, which sections of the MD&A are incorporated by reference herein.
NATURAL GAS PIPELINES
Developments in the Canadian Natural Gas Pipelines Segment
DateDescription of development
CANADIAN REGULATED PIPELINES
NGTL System - Expansion Programs
2018
In February 2018, we announced the NGTL System 2021 Expansion Program (2021 Expansion Program) with an estimated capital cost of $2.3 billion and an anticipated in-service date in the first half of 2021, consisting of approximately 349 km (217 miles) of new pipeline, three compressor units and associated facilities. The expansion is expected to provide 1.59 PJ/d (1.45 Bcf/d) of incremental system capacity underpinned by long-term receipt and delivery contracts, connecting incremental supply to growing intra-basin and export markets. In October 2018, we announced the $1.5 billion NGTL System 2022 Expansion Program (2022 Expansion Program) to meet capacity requirements for incremental firm-receipt and intra-basin delivery services to commence in November 2021 and April 2022. The 2022 Expansion Program consists of approximately 221 km (137 miles) of new pipeline, three compressor units, meter stations and associated facilities. In 2018, we placed approximately $0.6 billion of projects in service.
2019
We pursued applications to the CER (formerly the NEB, see the Business of TC Energy - Regulation of Natural Gas Pipelines and Liquids Pipelines section below) on both the 2021 Expansion Program and the 2022 Expansion Program. The 2021 Expansion Program application was concluded in fourth quarter 2020 and the 2022 Expansion Program application is still pending approval. In October 2019, we announced the West Path Delivery Program, an expansion of our NGTL System and Foothills pipeline system for contracted incremental export capacity onto the GTN system in the Pacific Northwest. The Canadian portion of the expansion program has an estimated capital cost of $1.0 billion and consists of approximately 103 km (64 miles) of pipeline and associated facilities with in-service dates in fourth quarter 2022 and fourth quarter 2023. The West Path Delivery Program is underpinned by approximately 275 TJ/d (258 MMcf/d) of new firm service contracts with terms that exceed 30 years.
TC Energy Annual information form 2020 | 5


DateDescription of development
2020
In February 2020, we approved the NGTL Intra-Basin System Expansion, subject to required regulatory approval, for a contracted incremental intra-basin delivery capacity of 331 TJ/d (309 MMcf/d) for 15-year terms. The expansion includes three segments of pipeline totaling 119 km (74 miles), 90 MW of additional compression and has an estimated capital cost of $0.9 billion and with in-service dates commencing in 2023. In 2020, we received Governor in Council (GIC) approval of the 2021 Expansion Program and began progressing construction activities, with in-service expected to commence in late 2021 with remaining program components completed by April 2022. In second quarter 2020, the NGTL System held a Capacity Optimization Open Season soliciting requests for the deferral or advancement of pending contracts to assist customers in optimizing their transportation service needs and align system expansions with customer growth requirements. Following analysis of the results of the open season, we concluded that all proposed system expansion projects continue to be required to meet aggregate system demand, although the in-service dates for some facilities have been delayed. This resulted in the deferral of a portion of planned capital spending from 2020 and 2021 to 2022 through 2024. Further information about the net impact of these deferrals, together with some expected increase in project costs on the 2021 Expansion Program can be found in the About our business - Capital program - Secured projects table of the MD&A, which section of the MD&A is incorporated by reference herein.
NGTL System - North Montney Mainline (NMML)
2018
In July 2018, the NEB issued an amending order removing the condition requiring a positive FID for the Pacific Northwest LNG project prior to commencement of construction in respect to the NMML. The NEB directed NGTL to seek approval for a revised tolling methodology for the project following a provisional period defined as one year after the receipt of the Government of Canada decision. Construction on the NMML project began in August 2018.
2019
In March 2019, the NGTL System Rate Design and Services Application was filed with the NEB which addressed rate design, terms and conditions of service for the NGTL System and a tolling methodology for the NMML. The CER issued a decision in March 2020, approving all elements of the application as filed.
2020
In January 2020, the $1.1 billion Aitken Creek section of the North Montney project was placed into service with the final section of the project, Kahta South, in service in May 2020. All compressor stations, pipeline sections and 11 of the 13 meter stations are complete and operational, with the remaining two meter stations expected to be in service in 2021.
NGTL System - Revenue Requirement Settlements
2018
In June 2018, the NEB approved the 2018-2019 Revenue Requirement Settlement (2018-2019 Settlement), as filed, and the resulting final 2018 tolls. The 2018-2019 Settlement, which was effective from January 1, 2018 to December 31, 2019, fixed ROE at 10.1 per cent on 40 per cent deemed common equity and increased the composite depreciation rate from 3.18 per cent to 3.45 per cent.
2019
The 2018-2019 Settlement expired on December 31, 2019 and the NGTL System operated under interim tolls until the 2020-2024 Settlement was approved in August 2020.
2020
In August 2020, the CER approved the NGTL System's 2020-2024 Revenue Requirement Settlement (2020-2024 Settlement) negotiated with its customers and other interested parties. The 2020-2024 Settlement, effective January 1, 2020, maintains the equity return at 10.1 per cent on 40 per cent deemed common equity, provides the NGTL System with the opportunity to increase depreciation rates if tolls fall below projected levels and includes an incentive mechanism for certain operating costs where variances from projected amounts are shared between the NGTL System and its customers. It also includes a mechanism to review the 2020-2024 Settlement should tolls exceed a pre-determined level, without affecting the equity return.
Canadian Mainline - Long-Term Fixed-Price Services
2018
In December 2018, we announced 670 TJ/d (625 MMcf/d) of new 15-year natural gas transportation contracts to provide customers with transportation services from the WCSB on the Canadian Mainline. Upon NEB approval of this Long-Term Fixed-Price (LTFP) service, referred to as the North Bay Junction (NBJ) LTFP service, incremental volumes under these LTFP contracts will reach markets in Ontario, Québec, New Brunswick, Nova Scotia and the Northeastern U.S. using existing capacity on the Canadian Mainline as well as new compression facilities.
2019
We filed an application with the NEB for approval of the NBJ LTFP service in January 2019, which was subsequently approved in May 2019 resulting in associated enhancements to the Canadian Mainline at a capital cost of $104 million.
6 | TC Energy Annual information form 2020


DateDescription of development
Canadian Mainline Settlement
2018
In December 2018, the NEB issued a decision (NEB 2018 Decision), on a toll review that it ordered in 2017, half way through the currency of the 2015-2020 tolls and tariffs settlement, approving all elements of the application. The impact of the NEB 2018 Decision was reflected in lower tolls effective February 1, 2019.
2019
In March 2019, the NEB approved the tolls as filed in the January 2019 compliance filing related to the Canadian Mainline 2018-2020 toll review.
2020In April 2020, the CER approved a six-year unanimously supported negotiated settlement between the Canadian Mainline, its customers and other stakeholders. The settlement, effective January 1, 2021, sets a base equity return of 10.1 per cent on 40 per cent deemed common equity and includes an incentive to either decrease costs and/or increase revenues on the pipeline with a beneficial sharing mechanism to both the shippers and us.
LNG PIPELINE PROJECTS
Coastal GasLink
2018In October 2018, we announced that we would be proceeding with construction of the Coastal GasLink following the LNG Canada joint venture participants' announcement of a positive FID for construction of the LNG Canada natural gas liquefaction facility in Kitimat, B.C. In December 2018, the B.C. Supreme Court issued an interim injunction, ordering opponents of Coastal GasLink to allow pipeline construction workers access to a blockaded area of the Coastal GasLink right of way, south of Houston, B.C.
2019
In response to a previous legal proceeding challenging the BCEAO's jurisdiction over the pipeline project in July 2019, the NEB issued its decision affirming provincial jurisdiction for Coastal GasLink. In addition, in December 2019, the B.C. Supreme Court granted the project an interlocutory injunction confirming the legal right to pursue its permitted and authorized activities through to completion.
2020
In May 2020, we completed the sale of a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership (Coastal GasLink LP). As part of the transaction, we were contracted by Coastal GasLink LP to construct and operate the pipeline. Effective with closing, we commenced recognition of development fee revenue earned during the construction of the pipeline for management and financial services provided and began accounting for our remaining 35 per cent investment using equity accounting. In conjunction with the equity sale, Coastal GasLink LP entered into project-level credit facilities which will fund the majority of the construction costs of Coastal GasLink. Due to COVID-19, in December 2020, the British Columbia Provincial Health Officer issued an order restricting the number of workers on site for industrial projects in the Northern Health Authority region of British Columbia. Industrial projects must submit restart plans to the Provincial Health Officer detailing steps to resume site work. Coastal GasLink LP is working with the provincial health authorities to safely resume construction activities in accordance with the objectives and timelines defined in the order.
TC Energy Annual information form 2020 | 7


Developments in the U.S. Natural Gas Pipelines Segment
DateDescription of development
U.S. NATURAL GAS PIPELINES - COLUMBIA PIPELINE GROUP
Sale of Columbia Midstream Assets
2019
In August 2019, we finalized the sale of certain Columbia Midstream assets to UGI Energy Services, LLC for proceeds of approximately US$1.3 billion, before post-closing adjustments. The sale resulted in a pre-tax gain of $21 million ($152 million after-tax loss), which included the release of $595 million of Columbia goodwill allocated to these assets that is not deductible for income tax purposes. This sale did not include any interest in Columbia Energy Ventures Company, which is our minerals business in the Appalachian basin.
Columbia Gas - Leach XPress
2018
The US$1.8 billion project was placed in service in January 2018. The Leach XPress project transports approximately 1.6 PJ/d (1.5 Bcf/d) of Marcellus and Utica gas supply to delivery points along the pipeline and to the Leach interconnect with Columbia Gulf, and consists of 260 km (160 miles) of 36-inch greenfield pipe, 39 km (24 miles) of 36-inch loop, three km (two miles) of 30-inch greenfield pipe, 82.8 MW (111,000 hp) of greenfield compression and 24.6 MW (33,000 hp) of brownfield compression.
Columbia Gas - Mountaineer XPress
2019
The Mountaineer XPress project was phased in service over first quarter 2019. The project was designed to transport supply from the Marcellus and Utica shale plays to points along the system and to the Leach interconnect with Columbia Gulf. The project consists of 275 km (171 miles) of 36-inch greenfield pipeline, 10 km (six miles) of 24-inch lateral pipeline, 0.6 km (0.4 miles) of 30-inch replacement pipeline, 114.1 MW (153,000 hp) of greenfield compression and 55.9 MW (75,000 hp) of brownfield compression. Project costs were revised upwards to US$3.6 billion reflecting the impact of delays of various regulatory approvals from the FERC and other agencies, increased contractor construction costs due to unusually high demand for construction resources in the region, unusually high instances of inclement weather throughout construction, and modifications to contractor work plans to mitigate construction delays associated with these impacts.
Columbia Gas - WB XPress
2018
The US$0.9 billion WB XPress project, designed to transport approximately 1.4 PJ/d (1.3 Bcf/d) of Marcellus gas supply westbound to the Gulf Coast and eastbound to Mid-Atlantic markets, was placed in service in October 2018 and November 2018 for the Western Build and Eastern Build, respectively.
Columbia Gas - Section 4 Rate Case
2020
Columbia Gas filed a Section 4 Rate Case with FERC in July 2020 requesting an increase to Columbia Gas' maximum transportation rates effective February 1, 2021, subject to refund. The rate case is progressing as expected as we continue to pursue a collaborative process to find a mutually beneficial outcome with our customers through settlement negotiations.
Columbia Gulf - Rate Settlement
2019
In December 2019, FERC approved the uncontested Columbia Gulf rate settlement which set new recourse rates for Columbia Gulf effective August 1, 2020 and instituted a rate moratorium through August 1, 2022.
Columbia Gulf - Gulf XPress
2019
The US$0.6 billion project was phased in service over first quarter 2019. The project is associated with the Mountaineer XPress expansion to move Appalachian supply to the Gulf Coast by the addition of seven greenfield mid-point compressor stations along the Columbia Gulf route.
Columbia Gulf - Cameron Access
2018
The Cameron Access project was placed in service in March 2018. The US$0.3 billion project is designed to transport approximately 0.9 PJ/d (0.8 Bcf/d) of gas supply to the Cameron LNG export terminal in Louisiana.
Columbia Gulf - Louisiana XPress
2018
In November 2018, we approved the Louisiana XPress project which will connect supply directly to U.S. Gulf Coast LNG export markets with the addition of three greenfield mid-point compressor stations along Columbia Gulf.
2019
The FERC certificate for the Louisiana XPress project was filed in July 2019. Interim service for Louisiana XPress shippers commenced in November 2019. The estimated US$0.4 billion project is expected to be placed in service in 2022.
Columbia Gulf - East Lateral XPress
2019
In May 2019, we approved the East Lateral XPress project, an expansion project on the Columbia Gulf system that will connect supply directly to U.S. Gulf Coast LNG export markets. Subject to a positive customer FID, the anticipated in-service date is in 2023 with estimated project costs of US$0.3 billion.
8 | TC Energy Annual information form 2020


DateDescription of development
Modernization II
2018
Columbia Gas and its customers entered into a settlement arrangement, approved by the FERC, which provides recovery and return on investment to modernize its system, improve system integrity, and enhance service reliability and flexibility. The Modernization II program includes, among other things, replacement of aging pipeline and compressor facilities, enhancements to system inspection capabilities, and improvements in control systems. The Modernization II program was approved for up to US$1.1 billion of work starting in 2018 and to be completed through 2020. As per terms of the arrangements, facilities in service by October 31 collect revenues effective February 1 of the following year until such arrangement is terminated upon new rates becoming effective once Columbia Gas files a Section 4 rate case under the Natural Gas Act.
2020
Capital spend on the Modernization II program was completed in fourth quarter 2020.
OTHER U.S. NATURAL GAS PIPELINES
ANR Pipeline - Grand Chenier XPress
2019
In July 2019, we approved the Grand Chenier XPress project which will connect supply directly to Gulf Coast LNG export markets with auxiliary enhancements at its existing Eunice Compressor Station, the addition of a mid-point compressor station, and a new point of delivery interconnection, meter and associated facilities along the ANR Pipeline. The FERC certificate for the project was filed in October 2019. The estimated US$0.2 billion project is expected to be placed in service in 2021 and 2022 for Phase I and II, respectively.
ANR Pipeline - Alberta XPress
2020
In February 2020, we approved the Alberta XPress project, an expansion project on the ANR pipeline system that utilizes existing capacity on the Great Lakes and Canadian Mainline systems to connect growing supply from the WCSB to U.S. Gulf Coast LNG export markets. The anticipated in-service date is in the second half of 2022 with an estimated project cost of US$0.2 billion.
ANR Pipeline - Elwood Power Project/ANR Horsepower Replacement
2020
In July 2020, we approved the Elwood Power Project/ANR Horsepower Replacement that will replace, upgrade and modernize certain facilities while reducing emissions along a highly utilized section of the ANR pipeline system. The enhanced facilities will improve reliability of the ANR pipeline system and also allow for additional contracted transportation services of approximately 132 TJ/d (123 MMcf/d) to be provided to an existing power plant near Joliet, Illinois. The anticipated in-service date of the combined project is in the second half of 2022 with an estimated cost of US$0.4 billion.
ANR Pipeline - Wisconsin Access
2020
In October 2020, we approved the Wisconsin Access project that will replace, upgrade and modernize certain facilities while reducing emissions along portions of the ANR pipeline system. The enhanced facilities will improve reliability of the ANR pipeline system and also allow for additional contracted transportation services of approximately 77 TJ/d (72 MMcf/d) to be provided to utilities serving the Midwestern U.S. under long-term contracts. The anticipated in-service date of the combined project is in the second half of 2022 with an estimated cost of US$0.2 billion.
Gas Transmission Northwest - GTN XPress
2019
In October 2019, TC Pipelines, LP (TCLP) approved the GTN XPress project which is an integrated reliability and expansion project on the GTN system that will provide for the transport of additional volumes enabled by the NGTL System's West Path Delivery Program (see the Developments in the Canadian Natural Gas Pipelines Segment – Canadian Regulated Pipelines – NGTL System - Expansion Programs section above). The expected in-service date of the estimated US$0.3 billion project is in 2022 and 2023.

TC Energy Annual information form 2020 | 9


Developments in the Mexico Natural Gas Pipelines Segment
DateDescription of development
MEXICO NATURAL GAS PIPELINES
Topolobampo
2018
The Topolobampo project was placed in service in June 2018. The US$1.2 billion project is a 572 km (355 miles), 30-inch pipeline that receives gas from the upstream pipelines near El Encino, Chihuahua, and delivers natural gas from these interconnecting pipelines to delivery points along the pipeline route including our Mazatlán pipeline at El Oro, Sinaloa.
Tula
2018
Construction of the Tula pipeline was substantially completed in 2017, with the exception of approximately 90 km (56 miles) of the pipeline, which is still pending completion. The CFE approved the recognition of force majeure events for the Tula pipeline, including the continuation of the payment of fixed capacity charges to us that began in first quarter 2018. Commencement of constructing the central segment of the project was delayed due to a lack of progress by the Secretary of Energy, the governmental department responsible for indigenous consultation. We negotiated separate CFE contracts that would allow certain segments of the pipeline to be placed in service when gas is available.
2019
The CFE initiated arbitration in June 2019, disputing fixed capacity payments due to force majeure events. Arbitration proceedings are suspended while management advances settlement discussions with the CFE. The east section of the Tula pipeline is available for interruptible transportation services until regular service under the CFE contract commences. Construction of the central segment of the Tula project has been delayed due to a lack of progress by the Secretary of Energy, the governmental department responsible for Indigenous consultations. The west section of Tula is mechanically complete and anticipated to go into service as soon as gas becomes available. We received capacity payments under force majeure provisions up to June 2019 but have not commenced recording revenue for accounting purposes.
2020
Construction of the central segment continues to be suspended. In-service is expected approximately two years after consultation is resolved or upon confirmation of a feasible alternative route.
Villa de Reyes
2018
Construction of the project commenced in 2017. However, delays due to archeological investigations by state authorities caused the in-service date to be revised to the second half of 2019. In 2018, the CFE approved the recognition of force majeure events for the Villa de Reyes pipeline, including the continuation of the payment of fixed capacity charges to us that began in first quarter 2018. We negotiated separate CFE contracts that would allow certain segments of the pipeline to be placed in service when natural gas is available.
2019The CFE initiated arbitration in June 2019, disputing fixed capacity payments due to force majeure events. Arbitration proceedings are suspended while management advances settlement discussions with the CFE. We received capacity payments under force majeure provisions up to May 2019. Payments received prior to in-service are not recognized as revenue for accounting purposes.
2020
Villa de Reyes project construction is ongoing. Phased in-service has been delayed due to COVID-19 contingency measures which have impeded our ability to obtain work authorizations as a result of administrative closures. Subject to timely re-opening of government agencies, we expect to complete construction of Villa de Reyes in 2021.
Sur de Texas
2018
Offshore construction was completed in May 2018. An amending agreement was signed with the CFE that recognizes force majeure events and payments of fixed capacity charges began in October 2018.
2019
The Sur de Texas pipeline began commercial operation in September 2019 following execution of the amending agreement with the CFE. The original Sur de Texas agreement had a fluctuating toll profile over a 25-year contract term. As a result of the amendment, the contract has been extended 10 years and the CFE will receive transportation services for 35 years under a levelized toll structure based on actual construction costs with an initial fixed toll applicable for the first 25 years of the contract term and a higher fixed toll over the last 10 years of the contract. All other terms and conditions of the contract remain substantially unchanged. Monthly revenues for this pipeline will be recognized at a levelized average rate over the 35-year contract term.
2020
In March 2020, we recorded US$55 million of revenue related to fees associated with our successful completion of the Sur de Texas pipeline.
Further information about developments in the Natural Gas Pipelines business, including changes that we expect will occur in 2021, can be found in the MD&A in the Natural Gas Pipelines business section; Canadian Natural Gas Pipelines – Understanding our Canadian Natural Gas Pipelines Segment, Significant events, Financial results and Outlook sections; U.S. Natural Gas Pipelines – Understanding our U.S. Natural Gas Pipelines Segment, Significant events, Financial results and Outlook sections; and Mexico Natural Gas Pipelines – Understanding our Mexico Natural Gas Pipelines Segment, Significant events, Financial results and Outlook sections, which sections of the MD&A are incorporated by reference herein.
10 | TC Energy Annual information form 2020


LIQUIDS PIPELINES
Developments in the Liquids Pipelines Segment
DateDescription of development
Keystone Pipeline System
2018
In 2018, we concluded successful open seasons for Marketlink securing incremental contractual support. We expanded our terminal facilities with the completion of an additional one million barrels of storage at Cushing, Oklahoma.
2019
In early February 2019, the Keystone pipeline was temporarily shut down after a leak was detected near St. Charles, Missouri. The pipeline was restarted the same day while the segment between Steele City, Nebraska to Patoka, Illinois was restarted in mid-February 2019. In October 2019, the Keystone pipeline was temporarily shut down after a leak was detected near Edinburg, North Dakota. The pipeline was restarted in November 2019 following the approval of the repair and restart plan by PHMSA.
Keystone XL
2018
We secured commercial support for all available Keystone XL project capacity and commenced certain pre-construction activities. The Nebraska Supreme Court agreed to hear an appeal of the Nebraska PSC route approval, in which oral arguments were heard in November 2018. The U.S. Presidential Permit (2017 Presidential Permit) was challenged in two separate lawsuits commenced in Montana. The South Dakota PUC permit for the Keystone XL project was issued in June 2010 and certified in January 2016. An appeal of that certification was denied in June 2017 and that decision was further appealed to the South Dakota Supreme Court. In June 2018, the Supreme Court dismissed the appeal against the certification of the Keystone XL project finding that the lower court lacked jurisdiction to hear the case. This decision is final as there can be no further appeals from this decision by the Supreme Court.
2019
In March 2019, the U.S. President issued a new U.S. Presidential Permit (2019 Presidential Permit) for the Keystone XL project which superseded the 2017 Presidential Permit. This resulted in the dismissal of certain legal claims related to the 2017 Presidential Permit and an injunction barring certain pre-construction activities and construction of the project. The lawsuits were expanded to include challenges to the 2019 Presidential Permit, and proceeded in federal district court in Montana. In August 2019, the Nebraska Supreme Court affirmed the November 2017 decision by the Nebraska PSC approving the Keystone XL pipeline route through the state. The DOS issued a Final SEIS for the project in December 2019. The Final SEIS supplements the 2014 Keystone XL SEIS and underpins the U.S. Bureau of Land Management (BLM) and U.S. Army Corps of Engineers (USACE) permits.
2020
In February 2020, we received approval from the BLM allowing for the construction of the Keystone XL pipeline across federally managed lands in Montana and land managed by the USACE at the Missouri River. In March 2020, we announced that we would proceed with construction of the Keystone XL pipeline project which commenced in April 2020. We advanced construction of 180 km (112 miles) of pipeline and five pump stations in Canada, 12 pump stations in the United States, and completed the U.S./Canada border crossing in June 2020. As part of the Keystone XL funding plan, the Government of Alberta invested approximately US$0.8 billion in equity as of December 31, 2020 which substantially funded construction costs through the end of 2020. In August 2020, we announced that the Keystone XL project had committed to construct the project using all union labour in the U.S. along with committing in excess of $10 million to create a Green Jobs Training Fund to help train union workers on renewable energy projects. In November 2020, we signed an agreement with Natural Law Energy, which included a potential investment by five First Nations in Alberta and Saskatchewan, of up to $1.0 billion in Keystone XL and future liquids projects.
2021In early January 2021, we executed a US$4.1 billion project-level credit facility that is fully guaranteed by the Government of Alberta and non-recourse to us, and made initial cash draws on January 8, 2021, in part to repurchase a majority of the Government of Alberta’s equity interest under the terms of the contract. On January 17, 2021, we announced that the Keystone XL project would achieve net-zero emissions by the time the project is placed into service in 2023. Additionally, we committed to ensure enough new renewable electricity was constructed along the pipeline route by 2030 to fully power the pipeline’s operational needs. On January 20, 2021, U.S. President Biden revoked the existing 2019 Presidential Permit for the Keystone XL pipeline. As a result, we suspended the advancement of the Keystone XL pipeline project and ceased capitalizing costs, including interest during construction, and also ceased accruing a return on the Government of Alberta interests as of that date, while we assess our options along with our partner, the Government of Alberta, and other stakeholders. An asset impairment is expected to be recorded in first quarter 2021. The determination of the amount of the pre-tax impairment of the Keystone XL assets will consider the then-carrying value of the project and any associated projects, outstanding contractual commitments, the estimated net recoverable value of tangible plant and equipment and specified contractual recoveries, which cannot be reasonably estimated until the options have been assessed and next steps have been determined.
TC Energy Annual information form 2020 | 11


DateDescription of development
Northern Courier
2019In July 2019, we completed the sale of an 85 per cent equity interest in Northern Courier to AIMCo for gross proceeds of $144 million, before post-closing adjustments, resulting in a pre-tax gain of $69 million after recording our remaining 15 per cent interest at fair value. The after-tax gain of $115 million reflects the utilization of prior years' previously unrecognized tax loss benefits. Preceding the equity sale, Northern Courier issued $1.0 billion of long-term, non-recourse debt, the proceeds from which were paid to TC Energy resulting in aggregate gross proceeds to TC Energy of $1.15 billion from this asset monetization. We remain the operator of the Northern Courier pipeline and are using the equity method to account for our remaining 15 per cent interest in our Consolidated financial statements.
Further information about developments in the Liquids Pipelines business, including changes that we expect will occur in 2021, can be found in the MD&A in the Liquids Pipelines – Understanding our Liquids Pipelines business, Significant events, Financial results and Outlook sections, which sections of the MD&A are incorporated by reference herein.
12 | TC Energy Annual information form 2020


POWER AND STORAGE
Developments in the Power and Storage Segment
DateDescription of development
CANADIAN POWER
Ontario Natural Gas-Fired Power Plants
2019
In March 2019, Napanee experienced an equipment failure while progressing commissioning activities which delayed the initial startup. In July 2019, we entered into an agreement to sell our Halton Hills and Napanee power plants as well as our 50 per cent interest in Portlands Energy Centre to a subsidiary of Ontario Power Generation Inc. (OPG).
2020In March 2020, we placed the Napanee power plant into service. In April 2020, we completed the sale of our Halton Hills and Napanee power plants as well as our 50 per cent interest in Portlands Energy Centre to a subsidiary of OPG for net proceeds of approximately $2.8 billion before post-closing adjustments. Pre-tax losses of $414 million ($283 million after tax) were recognized in 2020 and reflect the finalization of post-closing obligations. The total pre-tax loss of $693 million ($477 million after tax) on this transaction includes losses accrued during 2019 while classified as an asset held for sale as well as utilization of previously unrecognized tax loss benefits. This loss may be amended in the future upon the settlement of existing insurance claims.
Cartier Wind
2018
In October 2018, we completed the sale of our interests in the Cartier Wind power facilities in Québec to Innergex Renewable Energy Inc. for net proceeds of approximately $630 million, before post-closing adjustments, resulting in a gain of $170 million ($143 million after tax).
Bruce Power
2018
In September 2018, Bruce Power submitted its final cost and schedule duration estimate (basis of estimate) for the Unit 6 MCR program to the IESO, and the IESO verified the basis of estimate.
2019
In April 2019, Bruce Power's contract price increased from approximately $68 per MWh to a final adjusted contract price of approximately $78 per MWh including flow-through items, reflecting capital to be invested under the Unit 6 MCR program and the Asset Management program as well as annual inflation adjustments.
2020
Bruce Power’s Unit 6 MCR outage commenced in January 2020 and is expected to be completed in late 2023. In late March 2020, as a result of COVID-19 impacts, Bruce Power declared force majeure under its contract with the IESO. This force majeure notice covers the Unit 6 MCR and certain Asset Management work. In May 2020, work on the Unit 6 MCR and Asset Management programs was restarted with additional prevention measures in place for worker safety related to COVID-19 and progress is continuing on critical path activities. The impact of the force majeure will ultimately depend on the extent and duration of disruptions resulting from the pandemic and Bruce Power's ability to implement mitigation measures. In October 2020, the Unit 6 MCR project achieved a major milestone with the completion of the preparation phase and commencement of the Fuel Channel and Feeder Replacement Program and as of December 31, 2020 the Unit 6 MCR project remains on schedule and on budget. Operations on the remaining units continue as normal with the scheduled outages successfully completed on Unit 3, 4 and 5 in second quarter of 2020 and on Unit 8 in fourth quarter 2020. Future MCR investments will be subject to discrete decisions for each unit with specified off-ramps available for Bruce Power and the IESO.
Coolidge Generating Station
2019
In May 2019, we completed the sale of the Coolidge generating station to Salt River Agriculture Improvement and Power District as per the terms of their right of first refusal, for proceeds of US$448 million, before post-closing adjustments, resulting in a pre-tax gain of $68 million ($54 million after tax).
TransCanada Turbines Ltd.
2020
In November 2020, we acquired the remaining 50 per cent ownership interest in TransCanada Turbines Ltd. for cash consideration of US$67 million.
TC Energy Annual information form 2020 | 13


DateDescription of development
U.S. POWER
Monetization of U.S. Northeast Power Business
2018
In December 2017, we entered into an agreement to sell our U.S. power retail contracts as part of the continued wind down of our U.S. power marketing operations. In March 2018, we closed the sale of our U.S. power retail contracts for proceeds of approximately US$23 million and recognized income of US$10 million (US$7 million after-tax).
2019In May 2019, we sold our remaining U.S. Northeast power marketing contracts. This transaction concludes the wind-down of our U.S. Northeast power marketing business.
Further information about developments in the Power and Storage business, including changes that we expect will occur in 2021, can be found in the MD&A in the Power and Storage – Understanding our Power and Storage business, Significant events, Financial results and Outlook sections, which sections of the MD&A are incorporated by reference herein.
14 | TC Energy Annual information form 2020


Business of TC Energy
Our business is made up of pipeline and storage assets that transport, store or deliver natural gas and crude oil as well as power generation assets that produce electricity to support businesses and communities across the continent.
Our vision is to be the leading energy infrastructure company in North America, focused on pipeline and power generation opportunities where we have, or can develop, a significant competitive advantage. Refer to the About our business – 2020 Financial highlights - Consolidated results section of the MD&A for our revenues from operations by segment, for the years ended December 31, 2020 and 2019, which section of the MD&A is incorporated by reference herein.
The following is a description of each of TC Energy's three core businesses.
NATURAL GAS PIPELINES
Our natural gas pipeline network transports natural gas from supply basins to local distribution companies, power generation plants, industrial facilities, interconnecting pipelines, LNG export terminals and other businesses across Canada, the U.S. and Mexico.
In addition to our natural gas pipelines, we have regulated natural gas storage facilities in the U.S. with a total working gas capacity of 535 Bcf, making us one of the largest providers of natural gas storage and related services to key markets in North America.
Our Natural Gas Pipelines business is split into three operating segments representing its geographic diversity: Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines and Mexico Natural Gas Pipelines.
A description of the natural gas pipelines and regulated natural gas storage assets we operate in addition to further information about our pipeline holdings, developments and opportunities, significant regulatory developments and competitive position which relate to our Natural Gas Pipelines business can be found in the Natural Gas Pipelines Business, Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines and Mexico Natural Gas Pipelines sections of the MD&A, which sections of the MD&A are incorporated by reference herein.
LIQUIDS PIPELINES
Our existing liquids pipelines infrastructure connects Alberta crude oil supplies to U.S. refining markets in Illinois, Oklahoma and the U.S. Gulf Coast as well as U.S. crude oil supplies from the key market hub at Cushing, Oklahoma to the U.S. Gulf Coast. We also provide intra-Alberta liquids transportation.
A description of pipelines and properties we operate, in addition to further information about our pipeline holdings, developments and opportunities, significant regulatory developments and competitive position which relate to our Liquids Pipelines business can be found in the MD&A in the Liquids Pipelines section, which section of the MD&A is incorporated by reference herein.
TC Energy Annual information form 2020 | 15


REGULATION OF NATURAL GAS PIPELINES AND LIQUIDS PIPELINES
Canada
Natural Gas Pipelines
With the exception of Coastal GasLink (which is currently under construction), all of our major Canadian natural gas pipeline systems are regulated by the Canadian Energy Regulator (CER) (formerly, the National Energy Board (NEB)) under the Canadian Energy Regulator Act.
The CER regulates the construction and operation of facilities for these systems. TC Energy project applications are assessed by the CER, and depending on the project scope, may also require approval of the federal government. Should TC Energy propose a major project that is designated under the Impact Assessment Act, it would require assessment by an integrated review panel of the Impact Assessment Agency of Canada and the CER, as well as federal government approval.
The CER also regulates the terms and conditions of services, including rates, for these systems. The CER approves tolls and services that provide TC Energy the opportunity to recover costs of transporting natural gas, including the return of capital (depreciation) and return on the average investment base for our Canadian natural gas pipeline systems. Generally, Canadian natural gas pipelines request the CER to approve the pipeline’s cost of service and tolls once a year, and recover or refund the variance between actual and expected revenues and costs in future years. Net earnings may be affected by changes in investment base, ROE and regulated capital structure as well as by the terms of toll settlements approved by the CER.
The NGTL System is operating under a five-year revenue requirement settlement for 2020-2024 that includes an incentive mechanism for certain operating costs. Further information relating to the 2020-2024 Settlement can be found in the General development of the business - Natural Gas PipelinesDevelopments in the Canadian Natural Gas Pipelines Segment - Canadian Regulated Pipelines - NGTL System - Revenue Requirement Settlements section above and in the Canadian Natural Gas Pipelines - Significant Events - NGTL System Revenue Requirement Settlement section of the MD&A, which section of the MD&A is incorporated by reference herein.
The Canadian Mainline was in the final year of a six-year fixed toll settlement that included an incentive arrangement, which ended on December 31, 2020. As of January 1, 2021, the Canadian Mainline will operate under a new six-year settlement which also includes an incentive to decrease costs and/or increase revenues. Further information relating to the Canadian Mainline Settlement can be found in the General development of the business - Natural Gas PipelinesDevelopments in the Canadian Natural Gas Pipelines Segment - Canadian Regulated Pipelines - Canadian Mainline Settlement section above and in the Canadian Natural Gas PipelinesSignificant EventsCanadian Mainline section of the MD&A, which section of the MD&A is incorporated by reference herein.
Coastal GasLink Pipeline Project
The Coastal GasLink natural gas pipeline project is being developed primarily under the regulatory regime administered by the OGC and the Environmental Assessment Office (British Columbia) (BCEAO). The OGC is responsible for overseeing oil and gas operations in B.C., including exploration, development, pipeline transportation and reclamation. The BCEAO is an agency that manages the review of proposed major projects in B.C., as required by the B.C. Environmental Assessment Act.
Liquids Pipelines
The CER regulates the terms and conditions of service, including rates, construction and operation of the Canadian portion of the Keystone Pipeline System. The rates for transportation service on the Keystone Pipeline System are calculated in accordance with a methodology agreed to in transportation service agreements between Keystone pipeline and its shippers, and approved by the CER. The Northern Courier, White Spruce and Grand Rapids pipelines are regulated by the AER. The AER regulates the construction and operation of pipelines and associated facilities in Alberta.

16 | TC Energy Annual information form 2020


United States
Natural Gas Pipelines
TC Energy is subject to regulation by various federal, state and local governmental agencies, including those specifically described below.
The Company's wholly-owned and partially-owned U.S. pipelines and natural gas storage facilities are considered natural gas companies subject to the jurisdiction of the FERC. The Natural Gas Act of 1938 grants the FERC authority over the construction, acquisition and operation of pipelines and related facilities utilized in the transportation and sale of natural gas in interstate commerce, including the extension, enlargement or abandonment of service using such facilities. The FERC also has authority to regulate rates and charges for transportation and storage of natural gas in interstate commerce. Pipeline safety is regulated by PHMSA. Natural gas pipelines that cross the international border between Canada and the U.S., such as the Great Lakes, GTN and Portland pipelines, require a Presidential Permit from the DOS.
Liquids Pipelines
The FERC regulates the terms and conditions of service, including transportation rates, of interstate liquids pipelines, including the U.S. portion of the Keystone Pipeline System and Marketlink. The siting and construction of pipeline facilities are regulated by the specific state regulator in which the pipeline facilities are located. Pipeline safety is regulated by PHMSA. Liquids pipelines that cross the international border between Canada and the U.S., such as the Keystone pipeline, require a Presidential Permit. Liquids pipeline projects that cross federal lands or waters of the U.S. require additional federal permits.
Mexico
Natural Gas Pipelines
TC Energy’s pipelines in Mexico are regulated by the Comisión Reguladora de Energía (CRE) who authorizes the transmission services of all gas pipeline infrastructure. Accordingly, our Mexican pipelines have CRE-approved tariffs, services and related rates; however, the contracts underpinning the construction and operation of these facilities are long-term negotiated fixed-rate contracts. Our contractual rates are only subject to change under specific circumstances such as certain types of force majeure events or changes in law.
POWER AND STORAGE
Our power business includes approximately 4,200 MW of generation capacity located in Alberta, Ontario, Québec and New Brunswick and uses natural gas and nuclear fuel sources. These assets are supported by long-term contracts.
We own and operate approximately 118 Bcf of non-regulated natural gas storage capacity in Alberta.
Further information about Power and Storage assets we operate and those currently under construction, along with our Power and Storage holdings, significant developments, and opportunities in relation to our Power and Storage business, can be found in the MD&A in the Power and Storage section, which section of the MD&A is incorporated by reference herein.
TC Energy Annual information form 2020 | 17


General
EMPLOYEES
At Year End, TC Energy's principal operating subsidiary, TCPL, had 7,283 employees, substantially all of whom were employed in Canada and the U.S., as set forth in the following table.
Calgary2,758 
Western Canada (excluding Calgary)603 
Eastern Canada240 
Houston861 
U.S. Midwest875 
U.S. Northeast223 
U.S. Southeast/ Gulf Coast (excluding Houston)1,306 
U.S. West Coast86 
Mexico331 
Total7,283 
HEALTH, SAFETY, SUSTAINABILITY AND ENVIRONMENTAL PROTECTION AND SOCIAL POLICIES
The Board of Directors' (the Board) Health, safety, sustainability and environment (HSSE) committee oversees operational risk, people and process safety, security of personnel, environmental and climate change related risks, and monitors development and the implementation of systems, programs and policies relating to HSSE matters through regular reporting from management. We use an integrated management system that establishes a framework for managing these risks and is used to capture, organize, document, monitor and improve our related policies, programs and procedures.
Our management system, TOMS, is modeled after international standards, including the International Organization for Standardization (ISO) standard for environmental management systems, ISO 14001, and the Occupational Health and Safety Assessment Series for occupational health and safety. TOMS conforms to applicable industry standards and complies with applicable regulatory requirements. It covers our projects and operations and follows a continuous improvement cycle organized into four key areas:
Plan – risk and regulatory assessment, objective and target setting, including achieving total recordable case rate targets and striving for zero incidents as well as defining roles and responsibilities
Do – development and implementation of programs, procedures and standards to manage operational risk
Check – incident reporting, investigation, assurance activities, including internal and external audits, and performance monitoring
Act – non-conformance, non-compliance and opportunities for improvement are managed with performance reviewed by management.
The HSSE committee reviews HSSE performance and operational risk management. It receives detailed reports on:
overall HSSE corporate governance
operational performance and preventative maintenance metrics
asset integrity programs
emergency preparedness, incident response and evaluation
people and process safety performance metrics
our Environment Program, which is part of TOMS
developments in and compliance with applicable legislation and regulations, including those related to the environment
prevention, mitigation and management of risks related to HSSE matters, including climate change related or business interruption risks, such as pandemics, that may adversely impact TC Energy
sustainability matters, including social, environmental and climate change related risks and opportunities
our Occupational Health and Hygiene Program, which includes physical and mental health
management's approach to voluntary public disclosure on HSSE matters.
18 | TC Energy Annual information form 2020


The HSSE committee also receives updates on any specific areas of operational and construction risk management review being conducted by management and the results and corrective action plans flowing from internal and third party audits. Information about the financial and operational effects of environmental protection requirements on the capital expenditures, profit or loss and competitive position of TC Energy can be found in the MD&A in the Other information – Enterprise Risk Management – Health, safety, sustainability and environment section, which section of the MD&A is incorporated by reference herein. Generally, each year the HSSE committee or the HSSE Committee Chair tours one of our existing assets or projects under development as part of its responsibility to monitor and review our health, safety, sustainability and environmental practices. Additionally, the Board and the HSSE committee have an opportunity to have a joint site visit annually.
Health and Safety
As one of our corporate values, safety is an integral part of the way our employees work. Each year we develop goals predicated on achieving year over year sustainable improvement in our safety performance, and meeting or exceeding industry benchmarks.
The safety of our employees, contractors and the public, as well as the integrity of our pipelines, power and storage infrastructure, are a top priority. All assets are designed, constructed and commissioned with full consideration given to safety and integrity, and are placed in service only after all necessary requirements, both regulatory and internal, have been satisfied.
We annually conduct emergency response exercises to practice effective coordination between the Company, local emergency responders, regulatory agencies and government officials in the event of an emergency. TC Energy uses the Incident Command System (ICS), a standardized approach to command, control and coordinate emergency responses. The ICS model supports a unified approach to emergency response with these community members. We also provide annual training to all field staff in the form of table top exercises, online and vendor lead training.
Environmental risk, compliance and liabilities
TOMS provides requirements for our day-to-day work to protect employees, contractors, our workplace and assets, the communities in which we work and the environment. It conforms to external industry consensus standards and voluntary programs plus complies with applicable legislative requirements. Under TOMS, mandated programs set requirements to manage specific risk areas for TC Energy, including the Environment Program, which is a documented set of processes and procedures that identifies our requirements to proactively and systematically manage environmental hazards and risks throughout the lifecycle of our assets. As part of our Environment Program, we complete environmental assessments for our projects which include field studies that examine existing natural resources, biodiversity and land use along our proposed project footprint such as vegetation, soils, wildlife, water resources, wetland, and protected areas. To conserve and protect the environment during construction, information gathered for an environmental impact assessment is used to develop project-specific environmental protection plans. Additionally, the Environment Program, which applies to all of our operations, includes practices and procedures to manage potential adverse environmental effects to these resources during the full lifecycle of our facilities.
Our primary sources of risk related to the environment include:
changing regulations and requirements coupled with increased costs related to impacts on the environment
product releases, including crude oil, diluent and natural gas, that may cause harm to the environment (land, water and air)
use, storage and disposal of chemicals and hazardous materials
natural disasters and other catastrophic events, including those related to climate change, that may impact our operations.
Our assets are subject to federal, state, provincial and local environmental statutes and regulations governing environmental protection, including air and GHG emissions, water quality, species at risk, wastewater discharges and waste management. Operating our assets requires obtaining and complying with a wide variety of environmental registrations, licenses, permits and other approvals and requirements. Failure to comply could result in administrative, civil or criminal penalties, remedial requirements, or orders affecting future operations.
Through the implementation of our Environment Program, we continually monitor our facilities for compliance with all material legal and regulatory environmental requirements across all jurisdictions where we operate. We also comply with all material legal and regulatory permitting requirements in our project routing and development. We routinely monitor proposed changes in environmental policy, legislation and regulation, and where the risks are uncertain or have the potential to affect our ability to effectively operate our business, we comment on proposals independently or through industry associations.
TC Energy Annual information form 2020 | 19


Social Policies
We have a number of corporate governance documents including commitment statements, policies and standards to help manage Indigenous and stakeholder relations. We have a Code of Business Ethics (COBE) Policy which applies to all employees, officers and directors, and contingent workforce contractors of TC Energy and its wholly-owned subsidiaries and operated entities in countries where we conduct business. All employees (including executive officers) and directors must certify their compliance with COBE.
Our approach to Indigenous and stakeholder engagement is based on building relationships, mutual respect and trust while recognizing the unique values, needs and interests of each community. Our Indigenous Relations and Stakeholder Engagement Commitment Statements provide the structure to guide our teams’ behavior and actions, so they understand their responsibility and extend respect, courtesy and the opportunity to respond to every Indigenous group and stakeholder.
Our Indigenous Relations Policy is informed by our guiding principles and corporate values to ensure meaningful and respectful engagement and dialogue based on a principled and transparent approach. We work together with Indigenous groups to find mutually acceptable solutions and benefits and foster long-term relationships in support of TC Energy's business and sustainability objectives. This policy recognizes the diversity and uniqueness of each Indigenous group, the importance of the land, and the imperative of building relationships based on mutual respect and trust. We strive to be considered as a partner of choice by the Indigenous groups we engage with and hope to become a leader in reconciliation through our efforts.
We also have an Avoiding Bribery and Corruption Program which includes an Avoiding Bribery and Corruption Policy, annual online training provided to all personnel, face to face training provided to personnel in higher risk areas of our business, a supplier and contractor due diligence review process, and auditing of certain types of transactions.
We strive for continuous improvement in how we navigate the interconnections and complexity of environmental, social and economic issues related to our business. These issues are of great importance to our Indigenous groups and stakeholders, and have an impact on our ability to build and operate energy infrastructure.
Consistent with our four core values of safety, responsibility, collaboration and integrity, TC Energy does not tolerate human rights abuses. In our business activities, including engaging with stakeholders across Canada, the United States and Mexico, we will not be complicit with or engage in any activity that solicits or encourages abuse of human rights.
20 | TC Energy Annual information form 2020


Risk factors
A discussion of our risk factors can be found in the MD&A in the Natural Gas Pipelines – Business risks, Liquids Pipelines – Business risks, Power and Storage – Business risks and Other information – Enterprise risk management sections, which sections of the MD&A are incorporated by reference herein.
Dividends
Our Board has not adopted a formal dividend policy. The Board reviews the financial performance of TC Energy quarterly and makes a determination of the appropriate level of dividends to be declared in the following quarter. Currently, our payment of dividends is primarily funded from dividends TC Energy receives as the sole common shareholder of TCPL.
Provisions of various trust indentures and credit arrangements with certain of our subsidiaries can restrict those subsidiaries' and, in certain cases, our ability to declare and pay dividends or make distributions under certain circumstances. In the opinion of management, these provisions do not currently restrict our ability to declare or pay dividends.
Additionally, pursuant to the terms of the trust notes issued by TransCanada Trust (a financing trust subsidiary wholly owned by TCPL) and related agreements, in certain circumstances, including where holders of the trust notes receive deferral preferred shares of TCPL in lieu of cash interest payments and where exchange preferred shares of TCPL are issued to holders of the trust notes as a result of certain bankruptcy related events, TC Energy and TCPL would be prohibited from declaring or paying dividends on or redeeming their outstanding preferred shares (or, if none are outstanding, their respective common shares) until all such exchange or deferral preferred shares are redeemed by TCPL. No deferral preferred shares or exchange preferred shares of TCPL have ever been issued.
Dividends on our preferred shares are payable quarterly, as and when declared by the Board. The dividends declared on our common and preferred shares during the past three completed financial years, and the increase to the quarterly dividend per common share on our outstanding common shares for the quarter ending March 31, 2021, are set out in the MD&A under the heading About our business – 2020 financial highlights – Dividends section, which section of the MD&A is incorporated by reference herein.
Description of capital structure
SHARE CAPITAL
TC Energy’s authorized share capital consists of an unlimited number of common shares and an unlimited number of first preferred shares and second preferred shares, issuable in series. The number of common shares and preferred shares issued and outstanding as at Year End are set out in the MD&A in the Financial Condition – Share information section, which section of the MD&A is incorporated by reference herein. The following is a description of the material characteristics of each of these classes of shares.
Common shares
The common shares entitle the holders thereof to one vote per share at all meetings of shareholders, except meetings at which only holders of another specified class of shares are entitled to vote, and, subject to the rights, privileges, restrictions and conditions attaching to the first preferred shares and the second preferred shares, whether as a class or a series, and to any other class or series of shares of TC Energy which rank prior to the common shares, entitle the holders thereof to receive (i) dividends if, as and when declared by the Board out of the assets of TC Energy properly applicable to the payment of the dividends in such amount and payable at such times and at such place or places as the Board may from time to time determine, and (ii) the remaining property of TC Energy upon a liquidation, dissolution or winding up of the Company.
TC Energy Annual information form 2020 | 21


We have a shareholder rights plan that is designed to ensure, to the extent possible, that all shareholders of TC Energy are treated fairly in connection with any take-over bid for the Company. The plan creates a right attaching to each common share outstanding and to each common share subsequently issued. Each right becomes exercisable 10 trading days after a person has acquired (an acquiring person), or commences a take-over bid to acquire, 20 per cent or more of the common shares, other than by an acquisition pursuant to a take-over bid permitted under the terms of the plan (a permitted bid). Prior to a flip-in event (as described below), each right permits registered holders to purchase from the Company common shares of TC Energy at an exercise price equal to three times the market price of such shares, subject to adjustments and anti-dilution provisions (the exercise price). The beneficial acquisition by any person of 20 per cent or more of the common shares, other than by way of permitted bid, is referred to as a flip-in event. 10 trading days after a flip-in event, each right will permit registered holders other than an acquiring person to receive, upon payment of the exercise price, the number of common shares with an aggregate market price equal to twice the exercise price.
Under TC Energy's DRP, eligible holders of common and preferred shares of TC Energy can reinvest their dividends and make optional cash payments to obtain additional TC Energy common shares acquired on the open market at 100 per cent of the weighted average purchase price. Refer to the Financial Condition – Dividend Reinvestment Plan section of the MD&A, which section of the MD&A is incorporated by reference herein.
TC Energy also has a stock based compensation plan that allows some employees to acquire common shares of TC Energy upon exercise of options granted thereunder. Option exercise prices are equal to the closing price on the TSX on the last trading day immediately preceding the grant date. Options granted under the plan are generally fully exercisable after three years and expire seven years after the date of grant.
First preferred shares
Subject to certain limitations, the Board may, from time to time, issue first preferred shares in one or more series and determine for any such series, its designation, number of shares and respective rights, privileges, restrictions and conditions. The first preferred shares as a class have, among others, the provisions described below.
The first preferred shares of each series rank on a parity with the first preferred shares of every other series, and are entitled to preference over the common shares, the second preferred shares and any other shares ranking junior to the first preferred shares with respect to the payment of dividends, the repayment of capital and the distribution of assets of TC Energy in the event of its liquidation, dissolution or winding up.
Except as provided by the CBCA, the holders of the first preferred shares will not have any voting rights nor will they be entitled to receive notice of or to attend shareholders' meetings. The holders of any particular series of first preferred shares will, if the directors so determine prior to the issuance of such series, be entitled to such voting rights as may be determined by the directors if TC Energy fails to pay dividends on that series of preferred shares for any period as may be so determined by the directors. TC Energy currently does not intend to issue any first preferred shares with voting rights, and any issuances of first preferred shares are expected to be made only in connection with corporate financings.
The provisions attaching to the first preferred shares as a class may be modified, amended or varied only with the approval of the holders of the first preferred shares as a class. Any such approval to be given by the holders of the first preferred shares may be given by the affirmative vote of the holders of not less than 66 2/3 per cent of the first preferred shares represented and voted at a meeting or adjourned meeting of such holders.
The holders of Series 1, 3, 5, 7, 9, 11, 13 and 15 preferred shares will be entitled to receive quarterly fixed rate cumulative preferential cash dividends, as and when declared by the Board, to be reset periodically on prescribed dates to an annualized rate equal to the sum of the then five-year Government of Canada bond yield, calculated at the start of the applicable five-year period, and a spread as set forth in the table below (subject, in the case of the Series 13 and 15 preferred shares, to a fixed minimum reset rate of 5.50 per cent and 4.90 per cent, respectively) and have the right to convert their shares into cumulative redeemable Series 2, 4, 6, 8, 10, 12, 14 and 16 preferred shares, respectively, subject to certain conditions, on such conversion dates as set forth in the table below. The Series 1, 3, 5, 7, 9, 11, 13 and 15 preferred shares are redeemable by TC Energy in whole or in part on such redemption dates as set forth in the table below, by the payment of an amount in cash for each share to be redeemed equal to $25.00 plus all accrued and unpaid dividends thereon.
22 | TC Energy Annual information form 2020


The holders of Series 2, 4, 6, 8, 10, 12, 14 and 16 preferred shares will be entitled to receive quarterly floating rate cumulative preferential cash dividends, as and when declared by the Board, at an annualized rate equal to the sum of the then 90-day Government of Canada treasury bill rate, recalculated quarterly, and a spread as set forth in the table below and have the right to convert their shares into Series 1, 3, 5, 7, 9, 11, 13 and 15 preferred shares, respectively, subject to certain conditions, on such conversion dates as set forth in the table below. The Series 2, 4, 6, 8, 10, 12, 14 and 16 preferred shares are redeemable by TC Energy in whole or in part after their respective initial redemption date as set forth in the table below, by the payment of an amount in cash for each share to be redeemed equal to (i) $25.00 in the case of redemptions on such redemption dates as set out in the table below, or (ii) $25.50 in the case of redemptions on any other date, in each case plus all accrued and unpaid dividends thereon.
In the event of liquidation, dissolution or winding up of TC Energy, the holders of Series 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 and 16 preferred shares shall be entitled to receive $25.00 per preferred share plus all accrued and unpaid dividends thereon in preference over the common shares or any other shares ranking junior to the first preferred shares.
Series of first preferred sharesInitial redemption dateRedemption/conversion datesSpread (%)
Series 1 preferred sharesDecember 31, 2014December 31, 2024 and every fifth year thereafter1.92 
Series 2 preferred sharesDecember 31, 2024 and every fifth year thereafter1.92 
Series 3 preferred sharesJune 30, 2015June 30, 2025 and every fifth year thereafter1.28 
Series 4 preferred sharesJune 30, 2025 and every fifth year thereafter1.28 
Series 5 preferred sharesJanuary 30, 2016January 30, 2026 and every fifth year thereafter1.54 
Series 6 preferred sharesJanuary 30, 2026 and every fifth year thereafter1.54 
Series 7 preferred sharesApril 30, 2019April 30, 2024 and every fifth year thereafter2.38 
Series 8 preferred sharesApril 30, 2024 and every fifth year thereafter2.38 
Series 9 preferred sharesOctober 30, 2019October 30, 2024 and every fifth year thereafter2.35 
Series 10 preferred sharesOctober 30, 2024 and every fifth year thereafter2.35 
Series 11 preferred sharesNovember 30, 2020November 28, 2025 and every fifth year thereafter2.96 
Series 12 preferred sharesNovember 28, 2025 and every fifth year thereafter2.96 
Series 13 preferred sharesMay 31, 2021May 31, 2021 and every fifth year thereafter4.69 
Series 14 preferred sharesMay 29, 2026 and every fifth year thereafter4.69 
Series 15 preferred sharesMay 31, 2022May 31, 2022 and every fifth year thereafter3.85 
Series 16 Preferred sharesMay 31, 2027 and every fifth year thereafter3.85 
Except as provided by the CBCA, the respective holders of the first preferred shares of each outstanding series are not entitled to receive notice of, attend at, nor vote at any meeting of shareholders unless and until TC Energy shall have failed to pay eight quarterly dividends on such series of preferred shares, whether or not consecutive, in which case the holders of the first preferred shares of such series shall have the right to receive notice of and to attend each meeting of shareholders at which directors are to be elected and which take place more than 60 days after the date on which the failure first occurs, and to one vote with respect to resolutions to elect directors for each of the first preferred share of such series, until all arrears of dividends have been paid. Subject to the CBCA, the series provisions attaching to the first preferred shares may be amended with the written approval of all the holders of such series of shares outstanding or by at least two thirds of the votes cast at a meeting of the holders of such shares duly called for that purpose and at which a quorum is present.
Second preferred shares
The rights, privileges, restrictions and conditions attaching to the second preferred shares are substantially identical to those attaching to the first preferred shares, except that the second preferred shares rank junior to the first preferred shares with respect to the payment of dividends, repayment of capital and the distribution of assets of TC Energy in the event of a liquidation, dissolution or winding up of TC Energy.
TC Energy Annual information form 2020 | 23


Credit ratings
Although TC Energy has not issued debt to the public, it has been assigned credit ratings by Moody's Investors Service, Inc. (Moody's), S&P Global Ratings (S&P) and Fitch Ratings Inc. (Fitch), and its outstanding preferred shares have also been assigned credit ratings by S&P, Fitch and DBRS Limited (DBRS). Moody's has assigned TC Energy an issuer rating of Baa2 with a stable outlook, S&P has assigned an issuer credit rating of BBB+ with a stable outlook, and Fitch has assigned a long-term issuer default rating of A- with a negative outlook. TC Energy does not presently intend to issue debt securities to the public in its own name and any future debt financing requirements are expected to continue to be funded primarily through its subsidiary, TCPL, and TransCanada Trust, a wholly-owned financing trust subsidiary of TCPL. The following table sets out the current credit ratings assigned to those outstanding classes of securities of the Company, TCPL and TransCanada Trust and our related subsidiaries which have been rated by Moody's, S&P, Fitch and DBRS:
Moody'sS&PFitchDBRS
TCPL - Senior unsecured debt
Baa1
BBB+
A-
A (low)
TCPL - Junior subordinated notes
Baa2
BBB-
Not rated
BBB
TransCanada Trust - Subordinated trust notes
Baa3
BBB-
BBB
Not rated
TC Energy Corporation - Preferred shares
Not rated
P-2 (Low)
BBB
Pfd-2 (low)
Commercial paper (TCPL and TCPL guaranteed)
P-2
A-2
F2
R-1 (low)
Trend/ rating outlook
Stable
Stable
Negative
Stable
Credit ratings are intended to provide investors with an independent measure of credit quality of an issue of securities. Credit ratings are not recommendations to purchase, hold or sell securities and do not address the market price or suitability of a specific security for a particular investor. There is no assurance that any rating will remain in effect for any given period of time or that any rating will not be revised or withdrawn entirely by a rating agency in the future if, in its judgment, circumstances so warrant.
Each of the Company, TCPL, TransCanada Trust and certain of our other subsidiaries paid fees to each of Moody's, S&P, Fitch and DBRS for the credit ratings rendered in respect of their outstanding classes of securities noted above. In addition to annual monitoring fees for the Company and TCPL and their rated securities, additional payments are made in respect of other services provided in connection with various rating advisory services.
The information concerning our credit ratings relates to our financing costs, liquidity and operations. The availability and cost of our funding options may be affected by certain factors, including the global capital markets environment and outlook as well as our financial performance. Our access to capital markets for required capital at competitive rates is influenced by our credit rating and rating outlook, as determined by credit rating agencies such as Moody's, S&P, Fitch and DBRS. If our ratings were downgraded, TC Energy's financing costs and future debt issuances could be unfavourably impacted. A description of the rating agencies' credit ratings listed in the table above is set out below.
MOODY’S
Moody's has different rating scales for short- and long-term obligations. Numerical modifiers 1, 2 and 3 are appended to each rating classification from Aa through Caa. The modifier 1 indicates that the obligation ranks in the higher end of its generic rating category; the modifier 2 indicates a mid-range ranking; and a modifier 3 indicates a ranking in the lower end of that generic rating category. The Baa1 rating assigned to TCPL's senior unsecured debt is in the fourth highest of nine rating categories for long-term obligations. Obligations rated Baa are judged to be medium-grade and are subject to moderate credit risk, and as such, may possess certain speculative characteristics. The P-2 rating assigned to TCPL's and TCPL-guaranteed U.S. commercial paper programs is the second highest of four rating categories for short-term debt issuers. Issuers rated P-2 have a strong ability to repay short-term debt obligations. The Baa2 rating assigned to TCPL's junior subordinated notes and the Baa3 rating assigned to the TransCanada Trust subordinated trust notes, are in the fourth highest of nine rating categories for long-term obligations, with the junior subordinated notes ranking higher within the Baa rating category with a modifier of 2 as opposed to the modifier of 3 on the subordinated trust notes.
24 | TC Energy Annual information form 2020


S&P
S&P has different rating scales for short- and long-term obligations. Ratings from AA through CCC may be modified by the addition of a plus (+) or minus (-) sign to show the relative standing within a particular rating category. The BBB+ rating assigned to TCPL's senior unsecured debt is in the fourth highest of 10 rating categories for long-term obligations. A BBB rating indicates the obligor's capacity to meet its financial commitment is adequate; however, the obligation is more subject to the adverse effects of changes in circumstances and economic conditions than obligations in higher rated categories. The BBB- rating assigned to TCPL’s junior subordinated notes and to the TransCanada Trust subordinated trust notes, is in the fourth highest of 10 rating categories for long-term debt obligations and the P-2 (Low) rating assigned to TC Energy’s preferred shares is the second highest of eight rating categories for Canadian preferred shares. The BBB- and P-2 (Low) ratings assigned to TCPL's junior subordinated notes, the TransCanada Trust subordinated trust notes and TC Energy's preferred shares exhibit adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitment on the obligation. TCPL's and TCPL guaranteed U.S. commercial paper programs are each rated A-2 which is the second highest of six rating categories for short-term debt issuers. Short-term debt issuers rated A-2 have satisfactory capacity to meet their financial commitments, however they are somewhat more susceptible to adverse effects of changes in circumstances and economic conditions than obligors in the highest rating category.
FITCH
Fitch has different rating scales for short- and long-term obligations. Ratings from AA through CCC may be modified by the addition of a plus (+) or minus (-) sign to show the relative standing within a particular rating category. The A- rating assigned to TCPL's senior unsecured debt is in the third highest of 11 rating categories for long-term obligations. An A rating indicates that expectations of default risk are low and that the obligor's capacity to meet its financial commitment is strong; however, the obligation is somewhat more vulnerable to the adverse effects of changes in circumstances and economic conditions than obligations in higher rated categories. The F2 rating assigned to TCPL's and TCPL guaranteed commercial paper programs is the second highest of seven rating categories for short-term debt issuers. Issuers rated F2 have good intrinsic capacity for timely payments of short-term debt obligations. The BBB rating assigned to the TransCanada Trust subordinated trust notes is in the fourth highest of 11 rating categories for long-term debt obligations. The BBB ratings assigned to TC Energy’s preferred shares and the TransCanada Trust subordinated trust notes indicate that expectations of default risk are low and that the capacity for payment of financial commitments is considered adequate, however, adverse economic conditions or adverse business conditions are more likely to impair the capacity of the obligor to meet its financial commitment on the obligation.
DBRS
DBRS has different rating scales for short- and long-term debt and preferred shares. High or low grades are used to indicate the relative standing within all rating categories other than AAA and D and other than in respect of DBRS’ ratings of commercial paper and short-term debt, which utilize high, middle and low subcategories for its R-1 and R-2 rating categories. In respect of long-term debt and preferred share ratings, the absence of either a high or low designation indicates the rating is in the middle of the category. The R-1 (low) rating assigned to TCPL's Canadian commercial paper program is in the third highest of 10 rating categories for short-term debt issuers and indicates good credit quality. The capacity for payment of short-term financial obligations as they fall due is substantial, although the overall strength is not as favourable as higher rating categories. Short-term debt rated R-1 (low) may be vulnerable to future events, but qualifying negative factors are considered manageable. The A (low) rating assigned to TCPL's senior unsecured debt is in the third highest of 10 categories for long-term debt and indicates good credit quality. The capacity for the payment of financial obligations is substantial, but of lesser credit quality than that of higher rating categories. Long-term debt rated A may be vulnerable to future events but qualifying negative factors are considered manageable. The BBB rating assigned to junior subordinated notes is in the fourth highest of the 10 categories for long-term debt. Long-term debt rated BBB is of adequate credit quality. The capacity for the payment of financial obligations is considered acceptable, but long-term debt rated BBB may be vulnerable to future events. The Pfd-2 (low) rating assigned to TC Energy's preferred shares is in the second highest of six rating categories for preferred shares. Preferred shares rated Pfd-2 are generally of good credit quality. Protection of dividends and principal is still substantial; however, earnings, the balance sheet and coverage ratios are not as strong as Pfd-1 rated companies. In general, Pfd-2 ratings correspond with companies whose long-term debt is rated in the A category.
TC Energy Annual information form 2020 | 25


Market for securities
TC Energy's common shares are listed on the TSX and the NYSE under the symbol TRP. The following table sets out our preferred shares listed on the TSX.
TypeIssue DateStock Symbol
Series 1 preferred sharesSeptember 30, 2009TRP.PR.A
Series 2 preferred sharesDecember 31, 2014TRP.PR.F
Series 3 preferred sharesMarch 11, 2010TRP.PR.B
Series 4 preferred sharesJune 30, 2015TRP.PR.H
Series 5 preferred sharesJune 29, 2010TRP.PR.C
Series 6 preferred sharesFebruary 1, 2016TRP.PR.I
Series 7 preferred sharesMarch 4, 2013TRP.PR.D
Series 9 preferred sharesJanuary 20, 2014TRP.PR.E
Series 11 preferred sharesMarch 2, 2015TRP.PR.G
Series 13 preferred sharesApril 20, 2016TRP.PR.J
Series 15 preferred sharesNovember 21, 2016TRP.PR.K
The following tables set out the reported monthly high, low, and month end closing trading prices and monthly trading volumes of the common shares of TC Energy on the TSX and the NYSE, and the respective Series 1, 2, 3, 4, 5, 6, 7, 9, 11, 13 and 15 preferred shares on the TSX, for the periods indicated:
COMMON SHARES
Month
TSX (TRP)NYSE (TRP)
High
($)
Low
($)
Close
($)
Volume tradedHigh
(US$)
Low
(US$)
Close
(US$)
Volume traded
December 2020$59.18$51.10$51.75102,190,806 $46.23$40.11$40.7243,088,912 
November 2020$59.35$50.61$57.1346,901,663 $45.65$38.80$43.9332,306,155 
October 2020$58.15$51.95$52.4472,577,085 $44.32$39.01$39.4633,088,660 
September 2020$61.97$55.90$55.9073,062,743 $47.35$41.98$42.0226,669,865 
August 2020$66.14$60.75$60.9927,205,065 $49.95$45.04$46.6623,797,471 
July 2020$61.54$55.46$61.0583,446,087 $46.10$40.88$45.6025,081,327 
June 2020$64.61$56.37$58.00108,209,443 $48.35$41.22$42.8633,499,397 
May 2020$67.89$57.39$62.0541,629,167 $48.21$40.86$45.0140,940,540 
April 2020$67.88$57.07$64.0676,188,653 $48.72$40.13$46.3648,701,792 
March 2020$74.06$47.05$62.55131,341,375 $55.25$32.37$44.3087,008,667 
February 2020$76.58$68.41$69.9638,306,359 $57.92$50.86$52.3532,633,647 
January 2020$73.45$67.97$72.5739,182,456 $55.70$52.25$54.8233,540,773 
TC Energy ATM Program
On December 7, 2020, we established an at-the-market equity program (ATM Program) that allows us to issue common shares from treasury having an aggregate gross sales price of up to $1.0 billion, or its U.S. dollar equivalent, to the public from time to time, at our discretion, at the prevailing market price when sold through the TSX, the NYSE, or any other applicable existing trading market for TC Energy common shares in Canada or the U.S. While not a component of our base funding plan, the ATM Program, which is effective for a 25-month period, provides additional financial flexibility in support of our consolidated credit metrics and capital program and may be activated if, and as, deemed appropriate. No common shares were issued under the ATM Program in 2020. Further information about our ATM Program can be found in the Financial Condition section of the MD&A, which section of the MD&A is incorporated by reference herein.
26 | TC Energy Annual information form 2020


PREFERRED SHARES
Preferred Shares
MonthSeries 1Series 2Series 3Series 4Series 5Series 6Series 7Series 9Series 11Series 13Series 15
December 2020
High
$13.55$11.74$9.59$9.20$11.02$10.88$15.83$15.64$16.99$25.61$25.05
Low
$12.32$10.61$8.95$8.06$10.00$9.80$14.36$14.27$15.63$25.22$24.58
Close
$13.36$11.36$9.50$8.82$10.54$10.53$15.22$14.80$16.76$25.52$24.90
Volume Traded246,73386,851375,96866,018525,04825,200480,376250,555158,888420,146828,370
November 2020
High
$13.02$10.99$9.28$8.25$10.20$10.02$15.05$14.62$16.01$25.60$25.33
Low
$11.56$9.86$8.25$7.43$8.67$8.40$12.82$12.72$14.55$25.23$24.81
Close
$12.51$10.55$8.95$8.22$10.00$9.93$14.70$14.35$15.70$25.38$25.00
Volume Traded272,07084,108242,48118,881347,87323,805195,188813,846111,899126,810310,980
October 2020
High
$12.14$10.49$8.79$8.00$9.22$9.20$14.05$14.09$15.84$25.55$25.15
Low
$11.60$9.86$8.27$7.40$8.64$8.39$12.82$12.70$14.65$25.06$24.45
Close
$11.67$9.93$8.27$7.52$8.70$8.40$12.85$12.85$14.84$25.25$25.05
Volume Traded250,481193,487103,85054,800191,57329,988268,099134,667441,345193,097317,665
September 2020
High
$12.88$11.08$9.19$8.30$9.69$9.40$14.51$14.52$16.28$25.50$24.97
Low
$11.55$10.03$8.42$7.51$8.72$8.70$13.52$13.40$15.09$24.74$24.05
Close
$12.11$10.32$8.65$7.71$9.08$8.86$14.09$13.95$15.73$25.30$24.39
Volume Traded187,250111,76766,94638,058102,85748,130242,00695,48476,537258,434204,419
August 2020
High
$13.00$10.95$8.94$8.35$9.46$9.20$14.13$14.09$15.84$25.76$24.98
Low
$11.92$10.03$8.19$7.36$8.50$8.50$13.60$13.59$15.25$25.00$23.46
Close
$12.60$10.71$8.70$8.00$9.17$9.10$14.00$14.04$15.69$25.29$24.57
Volume Traded143,40955,909111,256160,87298,88796,614241,850104,85262,955168,272195,625
July 2020
High
$12.62$10.44$8.98$8.09$9.71$10.16$14.05$13.92$15.87$25.59$24.85
Low
$11.36$9.55$7.55$7.25$8.35$8.22$12.65$12.50$14.20$24.67$23.02
Close
$11.88$10.10$8.20$7.55$8.92$8.75$13.51$13.61$15.10$25.25$23.45
Volume Traded443,83098,67092,95747,383387,50413,604196,688187,31091,411287,951298,519
June 2020
High
$12.05$10.30$8.02$7.99$9.28$9.41$13.41$13.24$14.96$25.26$23.38
Low
$11.15$9.48$7.22$7.19$8.02$8.25$12.69$12.46$13.84$24.69$22.64
Close
$11.35$9.55$7.85$7.31$8.62$8.39$12.87$12.63$14.20$24.84$23.34
Volume Traded295,325155,161158,34184,137102,05624,210278,843410,474262,068299,104424,458
May 2020
High
$11.95$10.28$8.01$8.04$8.79$9.28$13.71$13.91$14.99$25.32$23.77
Low
$10.97$9.55$7.34$7.29$8.14$8.11$12.80$12.40$13.16$24.58$22.62
Close
$11.26$9.80$7.34$7.49$8.32$8.30$12.99$12.56$14.04$24.80$22.83
Volume Traded160,85358,11394,936103,250140,60624,650327,968176,982109,539241,551189,114
April 2020
High
$12.46$10.16$9.01$8.99$9.50$9.27$13.66$13.90$14.86$25.10$23.55
Low
$10.25$8.47$7.00$7.15$7.67$7.50$11.43$11.14$13.04$21.60$19.15
Close
$12.06$10.05$8.06$8.04$8.95$8.64$13.57$13.58$14.60$24.92$23.12
Volume Traded275,286878,329370,501372,564330,32641,646477,381424,369205,953404,260367,388
March 2020
High
$14.01$12.71$10.16$10.14$10.82$11.08$15.65$15.39$17.40$25.98$25.48
Low
$8.38$7.69$6.14$6.25$6.36$6.60$9.52$9.38$10.37$18.80$16.45
Close
$11.26$9.68$8.20$8.20$8.50$8.52$12.47$12.25$13.77$22.21$20.10
Volume Traded482,683112,1311,198,971165,698416,988109,092588,361602,095197,106687,658838,544
February 2020
High
$15.10$14.70$11.79$11.88$12.40$12.75$16.95$16.75$18.97$26.17$25.75
Low
$13.50$12.85$9.95$10.06$10.77$11.30$15.28$15.21$17.42$25.83$24.86
Close
$13.65$12.90$10.05$10.21$10.81$11.35$15.49$15.35$17.55$25.85$24.89
Volume Traded214,62266,37593,16638,637186,54229,449211,939260,97146,106315,518201,124
January 2020
High
$15.09$14.80$12.55$12.41$13.26$13.25$17.21$17.12$19.41$26.25$25.75
Low
$14.10$13.88$11.08$11.25$11.95$12.25$16.37$16.15$18.46$25.60$25.20
Close
$14.47$14.29$11.29$11.53$12.12$12.25$16.55$16.32$18.48$25.84$25.45
Volume Traded239,552132,00386,33339,938388,98311,474496,047316,280119,073185,963184,466
TC Energy Annual information form 2020 | 27


Directors and officers
As of February 17, 2021, the directors and executive officers of TC Energy as a group beneficially owned, or exercised control or direction over, directly or indirectly, an aggregate of 365,637 common shares, constituting 0.04 per cent of the common shares of TC Energy. The Company collects this information from our directors and executive officers but otherwise we have no direct knowledge of individual holdings of TC Energy's securities.
DIRECTORS
The following table sets forth the names of the directors who serve on the Board as of February 17, 2021, together with their jurisdictions of residence, all positions and offices held by them with TC Energy, unless otherwise stated, their principal occupations or employment during the past five years and the year from which each director has continually served as a director of TC Energy. Positions and offices held with TC Energy are also held by such person at TCPL. Each director holds office until the next annual meeting or until his or her successor is earlier elected or appointed.
Name and place of residence
Principal occupation during the five preceding years 
Director since
Stéphan Crétier
Dubai, United Arab Emirates
Chairman, President and Chief Executive Officer, GardaWorld Security Corporation (GardaWorld) (private security services) and director of a number of GardaWorld’s direct and indirect subsidiaries, since 1999.
2017
Michael R. Culbert
Calgary, Alberta
Canada
Corporate director. Director, Precision Drilling Corporation (oil and gas services) since December 2017. Director, Reserve Royalty Income Trust (private oil and gas royalty trust) since May 2017. Director, Enerplus Corporation (oil and gas, exploration and production) from March 2014 to August 2020. Vice-Chair (Non-Executive) and Director, PETRONAS Canada Ltd. (oil and natural gas) from November 2016 to March 2020. Director and President, Pacific NorthWest LNG (liquified natural gas liquefaction and export facilities) from June 2012 to May 2017. Co-founder, Director, President and CEO, Progress Energy Ltd. (oil and gas, exploration and production) from November 2001 to November 2016.2020
Susan C. Jones
Calgary, Alberta
Canada
Corporate director. Director, Seven Generations Energy Ltd. (oil and gas, exploration and production) since May 2020. Director, Gibson Energy Inc. (mid-stream oil-focused infrastructure company) from December 2018 to February 2020. Director, Canpotex Limited (Canadian exporter of potash) from June 2018 to December 2019 (Chair of the Board from June 2019 to December 2019). Executive Vice-President and CEO of the Potash Business Unit, Nutrien Ltd. (Nutrien) (largest global underground soft-rock miner) from June 2018 to September 2019. Executive Advisor to the CEO, Nutrien, from October 2019 to December 2019. Executive Vice-President and CEO, Potash Unit, Nutrien, from June 2018 to September 2019. Executive Vice-President and President, Phosphate Unit, Nutrien, from January 2018 to May 2018. Chief Legal Officer, Agrium Inc. (Agrium) (agriculture) from March 2015 to December 2017.2020
Randy Limbacher
Houston, Texas
U.S.A.
Chief Executive Officer, Meridian Energy, LLC (oil and gas exploration and production) since June 2017. Executive Vice-President of Strategy of Alta Mesa Resources, Inc. (Alta Mesa) (oil and gas, exploration and production) from September 2019 to May 2020. Director, CARBO Ceramics Inc. (CARBO) from July 2007 to July 2020. Interim President, Alta Mesa from January to September 2019. Vice Chairman and director, Samson Resources Corporation (Samson) (oil and gas exploration and production) from December 2015 to March 2017.
2018
John E. Lowe
Houston, Texas
U.S.A.
Non-executive Chairman of the Board, Apache Corporation (Apache) (oil and gas) since May 2015. Director, Phillips 66 Company (energy infrastructure) since May 2012. Director, Apache since July 2013. Senior Executive Adviser at Tudor, Pickering, Holt & Co. LLC (energy investment and merchant banking) since September 2012.
2015
David MacNaughton
Toronto, Ontario
Canada
President, Palantir Canada (data integration and analytics software) since September 2019. Canada's Ambassador to the United States from March 2016 to August 2019.
2020
28 | TC Energy Annual information form 2020


Name and place of residence
Principal occupation during the five preceding years 
Director since
François L. Poirier
Calgary, Alberta
Canada2
President and Chief Executive Officer since January 2021. Chief Operating Officer and President, Power and Storage from September 2020 to December 2020. Chief Operating Officer and President, Power and Storage and Mexico from January 2020 to September 2020. Executive Vice-President, Corporate Development and Strategy, and President, Power & Storage and Mexico from May 2019 to January 2020. Executive Vice-President, Corporate Development and Strategy and President, Mexico Natural Gas Pipelines and Energy from January 2019 to May 2019. Executive Vice-President, Strategy and Corporate Development from February 2017 to December 2018. Senior Vice-President, Strategy and Corporate Development (Corporate Services Division), TCPL from October 2015 to January 2017.
2021
Una Power
Vancouver, British Columbia
Canada
Corporate director. Director, Teck Resources Limited (diversified mining) since April 2017. Director, The Bank of Nova Scotia (Scotiabank) (chartered bank) since April 2016. Director, Kinross Gold Corporation (gold producer) from April 2013 to May 2019. Director, Nexen Energy ULC (oil and gas, exploration and production) from February 2013 to March 2016.
2019
Mary Pat Salomone
Naples, Florida
U.S.A.
Corporate director. Director, Herc Rentals (equipment rental) since July 2016. Director, Intertape Polymer Group (manufacturing) since November 2015.
2013
Indira Samarasekera
Vancouver, British Columbia
Canada
Senior Advisor, Bennett Jones LLP (law firm) since September 2015. Director, Stelco Holdings Inc. (manufacturing) since May 2018. Director, Magna International Inc. (automotive manufacturing) since May 2014 and Scotiabank (chartered bank) since May 2008. Member, selection panel for Canada's outstanding chief executive officer.
2016
D. Michael G. Stewart
Calgary, Alberta
Canada
Corporate director. Director, Pengrowth Energy Corporation (oil and gas, exploration and production) from December 2010 to January 2020. Director, CES Energy Solutions Corp. (oilfield services) from January 2010 to June 2019.
2006
Siim A. Vanaselja
Toronto, Ontario
Canada
Corporate director. Chair of the Board, TC Energy since May 2017. Director, Power Corporation (financial services) since May 2020. Director, Power Financial Corporation (financial services) since May 2018. Director, RioCan Real Estate Investment Trust (real estate) since May 2017. Director, Great-West Lifeco Inc. (financial services) since May 2014. Director, Maple Leaf Sports and Entertainment Ltd. (sports, property management) from August 2012 to June 2017.
2014
Thierry Vandal
Mamaroneck, New York
U.S.A.
President, Axium Infrastructure US, Inc. (independent infrastructure fund management firm) and Director, Axium Infrastructure Inc. since 2015. Director, Royal Bank of Canada (RBC) (chartered bank) since 2015. Member, International Advisory Board of École des Hautes Etudes Commerciales Montréal since October 2017.
2017
Steven W. Williams
Calgary, Alberta
Canada
Corporate director. Director, Alcoa Corporation (aluminum manufacturing) since January 2016 (Chair of the Board since January 1, 2021). President, and Chief Executive Officer and Director, Suncor Energy Inc. from May 2012 to November 2018 and May 2019, respectively.
2019
Cease Trade Orders, Bankruptcies, Penalties or Sanctions
As of the date hereof, except as indicated below, no other director or executive officer of the Company is or was a director or officer of another company in the past 10 years that:
was the subject of a cease trade or similar order, or an order denying that company access to any exemption under securities legislation, that was in effect for a period of more than 30 consecutive days.
was involved in an event that resulted in the company being subject to one of the above orders after the director or executive officer no longer held that role with the company, which resulted from an event that occurred while that person was acting in the capacity as director, chief executive officer or chief financial officer.
while acting in that capacity, or within a year of ceasing to act in that capacity, became bankrupt, made a proposal under any legislation relating to bankruptcy or insolvency or was subject to or instituted any proceedings, arrangement or compromise with creditors or had a receiver, receiver manager or trustee appointed to hold the assets of that company.
In September 2019, Alta Mesa and six affiliated debtors each filed a voluntary petition for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Southern District of Texas. In conjunction with the bankruptcy, Alta Mesa was subsequently delisted from NASDAQ in September 2019. Mr. Limbacher was Interim President of Alta Mesa from January to September 2019 and was Executive Vice-President of Strategy from September 2019 to May 2020.
2 As President and Chief Executive Officer of TC Energy, Mr. Poirier is not a member of any Board Committees, but is invited to attend committee meetings as required.
TC Energy Annual information form 2020 | 29


In March 2020, CARBO filed a voluntary petition for reorganization under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Southern District of Texas. As part of the process, the company entered into an agreement with Wilks Brothers, LLC (Wilks Brothers) and Equify Financial, LLC under which Wilks Brothers acquired CARBO through a debt-for-equity exchange in July 2020. Mr. Limbacher was a director of CARBO from July 2007 to July 2020.
Samson filed a plan of reorganization in Delaware Bankruptcy Court in September 2015. Mr. Limbacher was the Chief Executive Officer of Samson from 2013 through 2015 and remained a director of Samson until it emerged from bankruptcy in March 2017.
No director or executive officer of the Company has within the past 10 years:
become bankrupt
made a proposal under any legislation relating to bankruptcy or insolvency
become subject to or launched any proceedings, arrangement or compromise with any creditors, or
had a receiver, receiver manager or trustee appointed to hold any of their assets.
No director or executive officer of the Company has been subject to:
any penalties or sanctions imposed by a court relating to securities legislation or by a securities regulatory authority or has entered into a settlement agreement with a securities regulatory authority, or
any other penalties or sanctions imposed by a court or regulatory body that would likely be considered important to a reasonable investor in making an investment decision.
BOARD COMMITTEES
TC Energy has four committees of the Board: the Audit committee, the Governance committee, the Health, Safety, Sustainability & Environment committee and the Human Resources committee. As President and Chief Executive Officer of TC Energy, Mr. Poirier is not a member of any Board Committees, but is invited to attend committee meetings as required.
The voting members of each of these committees, as of February 17, 2021, are identified below. Information about the Audit committee can be found in this AIF under the heading Audit committee.
Director
Audit
committee
Governance
committee
Health, Safety, Sustainability &
Environment committee
Human Resources
committee
Stéphan Crétierüü
Michael R. Culbertüü
Susan C. Jones3
üü
Randy Limbacherüü
John E. LoweChairü
David MacNaughtonüü
Una Powerüü
Mary Pat SalomoneüChair
Indira Samarasekeraüü
D. Michael G. StewartChairü
Siim A. Vanaselja (Chair)üü
Thierry VandalüChair
Steven W. Williamsüü

3 For the 2020 year, Ms. Jones attended the Audit committee meetings as an observer and did not vote on any matters considered by the committee.
30 | TC Energy Annual information form 2020


OFFICERS
With the exception of Stanley G. Chapman, III and Corey Hessen, all of the executive officers and corporate officers of TC Energy reside in Calgary, Alberta, Canada. Positions and offices held with TC Energy are also held by such person at TCPL. As of the date hereof, the officers of TC Energy, their present positions within TC Energy, unless otherwise stated, and their principal occupations during the five preceding years are as follows:
Executive officers
NamePresent position held Principal occupation during the five preceding years
François L. Poirier
President and Chief Executive Officer
Prior to January 2021, Chief Operating Officer and President, Power and Storage. Prior to September 2020, Chief Operating Officer and President, Power and Storage and Mexico. Prior to January 2020, Executive Vice-President, Corporate Development and Strategy, and President, Power & Storage and Mexico. Prior to May 2019, Executive Vice-President, Corporate Development and Strategy and President, Mexico Natural Gas Pipelines and Energy. Prior to January 2019, Executive Vice-President, Strategy and Corporate Development. Prior to February 2017, Senior Vice-President, Strategy and Corporate Development (Corporate Services Division).
Stanley G. Chapman, III
Houston, Texas
U.S.A.
Executive Vice-President and President, U.S. and Mexico Natural Gas Pipelines
Prior to September 2020, Executive Vice-President and President, U.S. Natural Gas Pipelines. Prior to April 2017, Senior Vice-President and General Manager, U.S. Natural Gas Pipelines. Prior to July 2016, Executive Vice-President and Chief Commercial Officer of Columbia Pipeline Group, Inc.
Dawn E. de Lima
Executive Vice-President, Corporate Services
Prior to December 2020, Chief Shared Services Officer, TransAlta Corporation (TransAlta). Prior to February 2019, Chief Officer, Business and Operational Services, TransAlta. Prior to July 2018, Chief Administrative Officer, TransAlta.
Wendy L. Hanrahan
Executive Vice-President and Senior Advisor
Prior to December 2020, Executive Vice-President, Corporate Services.
Corey Hessen
Reisterstown, Maryland
U.S.A.
Senior Vice-President and President, Power and StoragePrior to January 2021, Senior Vice-President, Power & Storage. Prior to September 2020, Senior Vice-President, Fuels, Exelon Corporation (Exelon). Prior to November 2016, Vice-President, Generation Development, Exelon.
Joel E. Hunter
Senior Vice-President, Capital Markets
Prior to December 2017, Vice-President, Finance and Treasurer.
Leslie C. Kass
Executive Vice-President, Technical Centre
Prior to January 2020, Senior Vice-President, Technical Centre. Prior to May 2019, President and Chief Executive Officer, Babcock & Wilcox Enterprises, Inc. (B&W). Prior to November 2018, Senior Vice President, Leader of Industrial Segment, B&W. Prior to February 2018, Vice President, Retrofits and Continuous Emissions Monitoring Systems, B&W. Prior to May 2017, Vice President, Investor Relations and Communications, B&W. Prior to August 2016, Vice President, Regulatory and Agency Relations, B&W.
Patrick M. Keys
Executive Vice-President, Stakeholder Relations and General Counsel
Prior to May 2019, Senior Vice-President, Legal. Prior to February 2019, Vice-President, Commercial West (Natural Gas Pipelines Division (Canada)). Prior to April 2017, Vice-President, Commercial West (Natural Gas Pipelines Division).
Donald R. Marchand
Executive Vice-President, Strategy & Corporate Development and Chief Financial Officer
Prior to January 2020, Executive Vice-President and Chief Financial Officer. Prior to February 2017, Executive Vice-President, Corporate Development and Chief Financial Officer.
Tracy A. Robinson
Executive Vice-President and President, Canadian Natural Gas Pipelines
Prior to January 2019, Executive Vice-President, Canadian Natural Gas Pipelines. Prior to September 2018, Senior Vice-President, Canadian Natural Gas Pipelines. Prior to November 2017, Senior Vice-President, Canada (Natural Gas Pipelines Division (Canada)). Prior to April 2017, Senior Vice-President, Canada (Natural Gas Pipelines Division). Prior to March 2017, Vice-President, Supply Chain.
Bevin M. Wirzba
Executive Vice-President and President, Liquids Pipelines
Prior to August 2020, Senior Vice-President, Liquids Pipelines. Prior to January 2020, Senior Vice-President, Liquids Operations and Commercial (Liquids Pipelines Division). Prior to July 2019, Senior Vice-President, Business Development and Capital Markets, ARC Resources Ltd.

TC Energy Annual information form 2020 | 31


Corporate officers
Name
Present position held Principal occupation during the five preceding years
Gloria L. Hartl
Vice-President, Risk Management
Prior to February 2019, Director, Corporate Planning. Prior to December 2017, Manager, Short-Term Planning & Forecasting.
Dennis P. Hebert
Vice-President, Taxation
Prior to June 2017, Vice-President, Tax and Insurance, Spectra Energy.
R. Ian Hendy
Vice-President, Finance
Prior to January 2020, Vice-President and Treasurer. Prior to December 2017, Director, Financial Trading and Assistant Treasurer.
Nancy A. Johnson
Vice-President and Treasurer
Prior to January 2020, Vice-President, Strategy, Regulatory and Business Planning (Natural Gas Pipelines Division (Canada)). Prior to February 2019, Vice-President, Risk Management. Prior to June 2018, Director, Financial Reporting and Corporate Accounting. Prior to December 2017, Director, Corporate Planning and Evaluations.
Christine R. Johnston
Vice-President, Law and Corporate Secretary
Vice-President, Law and Corporate Secretary.
G. Glenn Menuz
Vice-President and Controller
Vice-President and Controller.
CONFLICTS OF INTEREST
Directors and officers of TC Energy and its subsidiaries are required to disclose any existing or potential conflicts in accordance with TC Energy's policies governing directors and officers and in accordance with the CBCA.
COBE covers potential conflicts of interest and requires that all employees, officers, directors and contract workers of TC Energy avoid situations that may result in a potential conflict. In the event an employee, officer, director or contract worker finds themselves in a potential conflict situation, COBE stipulates that:
the conflict should be reported; and
the person should refrain from participation in any decision or action where there is a real or perceived conflict.
COBE also notes that employees and officers of TC Energy may not engage in outside business activities that are in conflict with or detrimental to the interests of TC Energy. The Chief Executive Officer and executive officers must receive Governance committee consent for all outside business activities.
Under COBE, directors must also declare any material interest that he or she may have in a material contract or transaction and recuse himself or herself from related deliberations and approvals.
In addition to COBE, the directors and corporate officers of TC Energy are required to complete annual questionnaires disclosing any related party transactions. These questionnaires assist TC Energy in identifying and monitoring possible related party transactions.
There were no material conflicts of interests or related party transactions reported by the Board, Chief Executive Officer or executive officers in 2020.

32 | TC Energy Annual information form 2020


Serving on other boards
The Board believes that it is important for it to be composed of qualified and knowledgeable directors. As a result, due to the specialized nature of the energy infrastructure business, some of our directors are associated with or sit on the boards of companies that ship natural gas or liquids through our pipeline systems. Transmission services on most of TC Energy’s pipeline systems in Canada and the U.S. are subject to regulation and accordingly we generally cannot deny transportation services to a creditworthy shipper. The Governance committee monitors relationships among directors to ensure that business associations do not affect the Board’s performance.
The Board considers whether directors serving on the boards of other entities including public and private companies, Crown corporations and other state-owned entities, and non-profit organizations pose any potential conflict. The Board reviews these relationships annually to determine that they do not interfere with any of our director’s ability to act in our best interests. If a director declares a material interest in any material contract or material transaction being considered at the meeting, the director is not present during the discussion and does not vote on the matter.
COBE requires employees to receive consent before accepting a directorship with an entity that is not an affiliate. The Chief Executive Officer and executive vice-presidents (our executive leadership team) must receive the consent of the Governance committee. All other employees must receive the consent of the Corporate Secretary or her delegate.
Affiliates
The Board oversees relationships between TC Energy and any affiliates to avoid any potential conflicts of interest. This includes our relationship with TCLP, a master limited partnership listed on the NYSE.
Corporate governance
Our Board and management are committed to the highest standards of ethical conduct and corporate governance.
TC Energy is a public company listed on the TSX and the NYSE, and we recognize and respect rules and regulations in both Canada and the U.S.
Our corporate governance practices comply with the Canadian governance guidelines, which include the governance rules of the TSX and Canadian Securities Administrators:
National Instrument 52-110, Audit Committees
National Policy 58-201, Corporate Governance Guidelines, and
National Instrument 58-101, Disclosure of Corporate Governance Practices.
We also comply with the governance listing standards of the NYSE and the governance rules of the SEC that apply, in each case, to foreign private issuers.
Our governance practices comply with the NYSE standards for U.S. companies in all significant respects. As a non-U.S. company, we are not required to comply with most of the governance listing standards of the NYSE. As a foreign private issuer, however, we must disclose how our governance practices differ from those followed by U.S. companies that are subject to the NYSE standards. Our corporate governance practices do not significantly differ from those required to be followed by U.S. domestic issuers under the NYSE's listing standards. A summary of our governance practices compared to U.S. standards can be found on our website (www.tcenergy.com).
We benchmark our policies and procedures against major North American companies to assess our standards and we adopt best practices as appropriate. Some of our best practices are derived from the NYSE rules and comply with applicable rules adopted by the SEC to meet the requirements of the Sarbanes-Oxley Act of 2002 and the Dodd-Frank Wall Street Reform and Consumer Protection Act.
TC Energy Annual information form 2020 | 33


Audit committee
The Audit committee is responsible for assisting the Board in overseeing the integrity of our financial statements and our compliance with legal and regulatory requirements. It is also responsible for overseeing and monitoring the internal accounting and reporting process and the process, performance and independence of our internal and external auditors. The charter of the Audit committee can be found in Schedule B of this AIF.
RELEVANT EDUCATION AND EXPERIENCE OF MEMBERS
The members of the Audit committee as of February 17, 2021 are John E. Lowe (Chair), Stéphan Crétier, Michael R. Culbert, Susan C. Jones, Randy Limbacher, Una Power and Thierry Vandal. Mr. Culbert joined the committee effective May 1, 2020. Ms. Jones joined the committee as an observer effective May 1, 2020 and as a member effective February 17, 2021. Ms. Jones did not vote on any matters in 2020 considered by the committee.
The Board believes that the composition of the Audit committee reflects a high level of financial literacy and expertise. Each member of the Audit committee has been determined by the Board to be independent and financially literate within the meaning of the definitions under Canadian and U.S. securities laws and the NYSE rules. In addition, the Board has determined that Ms. Jones, Mr. Lowe, Ms. Power and Mr. Vandal are Audit Committee Financial Experts as that term is defined under U.S. securities laws. The Board has made these determinations based on the education and breadth and depth of experience of each member of the Audit committee. The following is a description of the education and experience, apart from their respective roles as directors of TC Energy, of each member of the Audit committee that is relevant to the performance of his or her responsibilities as a member of the Audit committee.
John E. Lowe (Chair)
Mr. Lowe holds a Bachelor of Science degree in Finance and Accounting from Pittsburg State University and is a Certified Public Accountant (inactive). He has been the non-executive Chairman of Apache's board of directors since May 2015. He also currently serves on the board of directors for Phillips 66 Company as audit committee Chair and has been the Senior Executive Adviser at Tudor, Pickering, Holt & Co. LLC since September 2012. Mr. Lowe has previously served as the audit committee Chair for Agrium Inc. and DCP Midstream LLC. He has also held various executive and management positions with ConocoPhillips for more than 25 years.
Stéphan Crétier
Mr. Crétier earned a Master of Business Administration from the University of California (Pacific). He is the Chairman, President and Chief Executive Officer of a multinational corporation, Garda World, with over 20 years of experience in providing company-wide operational and financial oversight including monitoring the reporting and disclosure process. Mr. Crétier also serves as director of a number of Garda World’s direct and indirect subsidiaries. He previously served as a director of three public companies, ORTHOsoft Inc. (formerly ORTHOsoft Holdings Inc.), BioEnvelop Technologies Corp. and Rafale Capital Corp.
Michael R. Culbert
Mr. Culbert holds a Bachelor of Science degree in Business Administration from Emmanuel College in Boston, Massachusetts. He currently serves on the board of directors of Precision Drilling Corporation since 2017 and is a member of its audit committee. He previously served as a director of Enerplus Corporation where he was also a member of the audit committee. He was a director and Vice Chair of PETRONAS Canada Ltd., director and President of Pacific NorthWest LNG LP and former co-founder, director, President and CEO of Progress Energy Ltd.
Susan C. Jones
Ms. Jones earned a Bachelor of Arts degree in Political Science and Hispanic Studies from the University of Victoria. She also holds a Bachelor of Laws degree from the University of Ottawa. She earned a Leadership Diploma from the University of Oxford and holds a Director Certificate from Harvard University. Ms. Jones serves as a director of Seven Generations Energy Ltd. and is a member of its audit and finance committee. She previously served on the boards and as a member of the audit committees of Gibson Energy Inc. and Canpotex Limited, where she also served as Chair of the Board from June 2019 to December 2019. Ms. Jones held an executive leadership role at Nutrien for 15 years, most recently as Executive Vice-President and CEO of the Potash Business Unit.
34 | TC Energy Annual information form 2020


Randy Limbacher
Mr. Limbacher holds a Bachelor of Science degree from Louisiana State University. He is currently the Chief Executive Officer of Meridian Energy, LLC. Mr. Limbacher previously served on the board of directors and audit committee for CARBO and was the Executive Vice-President and Interim President of Alta Mesa. He was previously the Chairman, President and Chief Executive Officer of Rosetta Resources, Inc. and President, Chief Executive Officer and Vice Chairman of Samson Resources Corporation.
Una Power
Ms. Power earned a Bachelor of Commerce (Honours) degree from Memorial University and holds Chartered Professional Accountant, Chartered Accountant and Chartered Financial Analyst designations. She also serves on the board of directors and the audit committees for Teck Resources Limited and The Bank of Nova Scotia. Ms. Power was previously the Chief Financial Officer of Nexen Energy ULC, a former publicly traded oil and gas company that is now a wholly-owned subsidiary of CNOOC Limited, where she held various executive positions with responsibility for financial and risk management, strategic planning and budgeting, business development, energy marketing and trading, information technology and capital investment.
Thierry Vandal
Mr. Vandal earned a Master of Business Administration in Finance from the École des Hautes Etudes Commerciale Montréal. He is the President of Axium Infrastructure U.S., Inc. and serves on the board of directors for Axium Infrastructure Inc. and on the international advisory boards of École des Hautes Études Commerciale Montréal and McGill University. He also serves on the board of directors for Royal Bank of Canada (RBC) where he is designated as RBC’s audit committee’s financial expert. Mr. Vandal previously served on the audit committee for Veresen Inc. until July 2017 and had over nine years of experience serving on the board of directors for Hydro-Québec where he also held the position of President and Chief Executive Officer until May 2015.
PRE-APPROVAL POLICIES AND PROCEDURES
TC Energy's Audit committee has adopted a pre-approval policy with respect to permitted non-audit services. Under the policy, the Audit committee has granted pre-approval for specified non-audit services. For engagements of up to $250,000, approval of the Audit committee Chair is required, and the Audit committee is to be informed of the engagement at the next scheduled Audit committee meeting. For all engagements of $250,000 or more, pre-approval of the Audit committee is required. In all cases, regardless of the dollar amount involved, where there is a potential for a conflict of interest involving the external auditor to arise on an engagement, the Audit committee must pre-approve the assignment.
To date, all non-audit services have been pre-approved by the Audit committee in accordance with the pre-approval policy described above.
EXTERNAL AUDITOR SERVICE FEES
The table below shows the services KPMG LLP provided during the last two fiscal years and the fees they invoiced us:
($ millions)20202019
Audit fees
12.812.4
audit of the annual consolidated financial statements
services related to statutory and regulatory filings or engagements
review of interim consolidated financial statements and information contained in various prospectuses and other securities offering documents
Audit-related fees
0.20.3
French translation services
services related to the audit of the financial statements of TC Energy pipeline abandonment trusts and certain post-retirement plans
Tax fees
1.11.9
Canadian and international tax planning and tax compliance matters, including the review of income tax returns and other tax filings
All other fees
Total fees
14.114.6
TC Energy Annual information form 2020 | 35


Legal proceedings and regulatory actions
Legal proceedings, arbitrations and actions are part of doing business. While we cannot predict the final outcomes of proceedings and actions with certainty, management does not expect any current or potential proceeding or action to have a material impact on our consolidated financial position or results of operations.
Transfer agent and registrar
TC Energy's transfer agent and registrar is Computershare Trust Company of Canada with its Canadian transfer facilities in the cities of Vancouver, Calgary, Toronto, Halifax and Montréal.
Material contracts
TC Energy did not enter into any material contracts outside the ordinary course of business during the year ended December 31, 2020, nor has it entered into any material contracts outside the ordinary course of business prior to the year ended December 31, 2020 which are still in effect as at the date of this AIF.
Interest of experts
KPMG LLP are the auditors of TC Energy and have confirmed with respect to TC Energy that they are independent within the meaning of the relevant rules and related interpretations prescribed by the relevant professional bodies in Canada and any applicable legislation or regulations and also that they are independent accountants with respect to TC Energy under all relevant U.S. professional and regulatory standards.
Additional information
1.Additional information in relation to TC Energy may be found under TC Energy's profile on SEDAR (www.sedar.com).
2.Additional information including directors' and officers' remuneration and indebtedness, principal holders of TC Energy's securities and securities authorized for issuance under equity compensation plans (all where applicable), is contained in TC Energy's Management Information Circular for its most recent annual meeting of shareholders that involved the election of directors and can be obtained upon request from the Corporate Secretary of TC Energy.
3.Additional financial information is provided in TC Energy's audited consolidated financial statements and MD&A for its most recently completed financial year.
36 | TC Energy Annual information form 2020


Glossary
Units of measure
BcfBillion cubic feet
Bcf/dBillion cubic feet per day
hphorsepower
kmKilometres
MMcf/dMillion cubic feet per day
MWMegawatt(s)
MWhMegawatt hours
PJ/dPetajoules per day
TJ/dTerajoules per day
General terms and terms related to our operations
AMasset management
ATMAn at-the-market distribution program allowing us to issue common shares from treasury at the prevailing market price
B.C.British Columbia
bitumenA thick, heavy oil that must be diluted to flow (also see: diluent). One of the components of the oil sands, along with sand, water and clay
diluentA thinning agent made up of organic compounds. Used to dilute bitumen so it can be transported through pipelines
DRPTC Energy's dividend reinvestment and share purchase plan
FIDFinal investment decision
force majeureUnforeseeable circumstances that prevent a party to a contract from fulfilling it
GHGGreenhouse gas
HSSEHealth, safety, sustainability and environment
investment baseIncludes rate base as well as assets under construction
LDCLocal distribution company
LNGLiquefied natural gas
MCRmajor component replacement
rate baseAverage assets in service, working capital and deferred amounts used in setting of regulated rates
TSATransportation service agreements
WCSBWestern Canada Sedimentary Basin
Year EndYear ended December 31, 2020
Accounting terms
GAAPU.S. generally accepted accounting principles
ROEReturn on common equity
Government and regulatory bodies terms
AERAlberta Energy Regulator
BCEAO
Environmental Assessment Office (British Columbia)
CBCACanada Business Corporations Act
CERCanadian Energy Regulator (formerly the National Energy Board (Canada))
CFEComisión Federal de Electricidad (Mexico)
CREComisión Reguladora de Energía (Mexico)
DOSU.S. Department of State
FERCFederal Energy Regulatory Commission (U.S.)
IESOIndependent Electricity System Operator
NEBNational Energy Board (Canada)
NYSENew York Stock Exchange
OGCOil and Gas Commission (British Columbia)
PHMSAPipeline and Hazardous Materials Safety and Administration
PSCPublic Service Commission (Nebraska)
PUCPublic Utilities Commission (South Dakota)
SECU.S. Securities and Exchange Commission
SEISSupplemental environmental impact statement
TSXToronto Stock Exchange

TC Energy Annual information form 2020 | 37


Schedule A
METRIC CONVERSION TABLE
The conversion factors set out below are approximate factors. To convert from Metric to Imperial multiply by the factor indicated. To convert from Imperial to Metric divide by the factor indicated.
MetricImperialFactor
Kilometres (km)
Miles
0.62
Millimetres
Inches
0.04
Gigajoules
Million British thermal units
0.95
Cubic metres*
Cubic feet
35.3
Kilopascals
Pounds per square inch
0.15
Degrees Celsius
Degrees Fahrenheit
to convert to Fahrenheit multiply by 1.8, then add 32 degrees; to convert to Celsius subtract 32 degrees, then divide by 1.8
*    The conversion is based on natural gas at a base pressure of 101.325 kilopascals and at a base temperature of 15 degrees Celsius.
38 | TC Energy Annual information form 2020


Schedule B
CHARTER OF THE AUDIT COMMITTEE
1.    PURPOSE
The Audit Committee shall assist the Board of Directors (the Board) in overseeing and monitoring, among other things, the:
Company’s financial accounting and reporting process;
integrity of the financial statements;
Company’s internal control over financial reporting;
external financial audit process;
compliance by the Company with legal and regulatory requirements; and
independence and performance of the Company’s internal and external auditor.
To fulfill its purpose, the Audit Committee has been delegated certain authorities by the Board that it may exercise on behalf of the Board.
2.    ROLES AND RESPONSIBILITIES
I.    Appointment of the Company’s External Auditor
Subject to confirmation by the external auditor of their compliance with Canadian and U.S. regulatory registration requirements, the Audit Committee shall recommend to the Board the appointment of the external auditor, such appointment to be confirmed by the Company’s shareholders at each annual meeting. The Audit Committee shall also recommend to the Board the compensation to be paid to the external auditor for audit services. The Audit Committee shall also be directly responsible for the oversight of the work of the external auditor (including resolution of disagreements between management and the external auditor regarding financial reporting) for the purpose of preparing or issuing an audit report or related work. The external auditor shall report directly to the Audit Committee.
The Audit Committee shall review and approve the audit plan of the external auditor. The Audit Committee shall also receive periodic reports from the external auditor regarding the auditor’s independence, discuss such reports with the auditor, consider whether the provision of non‑audit services is compatible with maintaining the auditor’s independence and take appropriate action to satisfy itself of the independence of the external auditor.
II.    Oversight in Respect of Financial Disclosure
The Audit Committee shall, to the extent it deems it necessary or appropriate:
(a)    review, discuss with management and the external auditor and recommend to the Board for approval, the Company’s audited annual consolidated financial statements, annual information form, management’s discussion and analysis (MD&A), all financial information in prospectuses and other offering memoranda, financial statements required by securities regulators, all prospectuses and all documents which may be incorporated by reference into a prospectus, including, without limitation, the annual management information circular, but excluding any pricing or prospectus supplement relating to the issuance of debt securities of the Company;
(b)    review, discuss with management and the external auditor and approve, the release to the public of the Company’s interim reports, including the consolidated financial statements, MD&A and news releases on quarterly financial results;
(c)    review and discuss with management and the external auditor the use of non-GAAP information and the applicable reconciliation;
(d)    review and discuss with management any financial outlook or future-oriented financial information disclosure in advance of its public release; provided, however, that such discussion may be done generally (consisting of discussing the types of information to be disclosed and the types of presentations to be made). The Audit
TC Energy Annual information form 2020 | 39


Committee need not discuss in advance each instance in which the Company may provide financial projections or presentations to credit rating agencies;
(e)    review with management and the external auditor major issues regarding accounting policies and auditing practices, including any significant changes in the Company’s selection or application of accounting policies, as well as major issues as to the adequacy of the Company’s internal controls and any special audit steps adopted in light of material control deficiencies that could significantly affect the Company’s financial statements;
(f)    review and discuss quarterly findings reports from the external auditor on:
(i)    all critical accounting policies and practices to be used;
(ii)    all alternative treatments of financial information within generally accepted accounting principles that have been discussed with management, ramifications of the use of such alternative disclosures and treatments, and the treatment preferred by the external auditor;
(iii)    other material written communications between the external auditor and management, such as any management letter or schedule of unadjusted differences;
(g)    review with management and the external auditor the effect of regulatory and accounting developments on the Company’s financial statements;
(h)    review with management and the external auditor the effect of any off-balance sheet structures on the Company’s financial statements;
(i)    review with management, the external auditor and, if necessary, legal counsel, any litigation, claim or contingency, including arbitration and tax assessments, that could have a material effect upon the financial position of the Company, and the manner in which these matters have been disclosed in the financial statements;
(j)    review disclosures made to the Audit Committee by the Company’s Chief Executive Officer (CEO) and Chief Financial Officer (CFO) during their certification process for the periodic reports filed with securities regulators about any significant deficiencies in the design or operation of internal controls or material weaknesses therein and any fraud involving management or other employees who have a significant role in the Company’s internal controls;
(k)    discuss with management the Company’s material financial risk exposures and the steps management has taken to monitor and control such exposures, including the Company’s risk assessment and risk management policies;
III.    Oversight in Respect of Legal and Regulatory Matters
(a)    review with the Company’s General Counsel legal matters that may have a material impact on the financial statements, the Company’s compliance policies and any material reports or inquiries received from regulators or governmental agencies;.
IV.    Oversight in Respect of Internal Audit
(a)    review and approve the audit plans of the internal auditor of the Company including the degree of coordination between such plans and those of the external auditor and the extent to which the planned audit scope can be relied upon to detect weaknesses in internal control, fraud or other illegal acts;
(b)    review the significant findings prepared by the internal audit department and recommendations issued by it or by any external party relating to internal audit issues, together with management’s response thereto;
(c)    review compliance with the Company’s policies and avoidance of conflicts of interest;
(d)    review the report prepared by the internal auditor on officers’ expenses and aircraft usage;
(e)    review the adequacy of the resources of the internal auditor to ensure the objectivity and independence of the internal audit function, including reports from the internal audit department on its audit process with subsidiaries and affiliates;
40 | TC Energy Annual information form 2020


(f)    ensure the internal auditor has access to the Chair of the Audit Committee, the Board and the CEO and meet separately with the internal auditor to review with him or her any problems or difficulties he or she may have encountered and specifically:
(i)    any difficulties which were encountered in the course of the audit work, including restrictions on the scope of activities or access to required information, and any disagreements with management;
(ii)    any changes required in the planned scope of the internal audit;
(iii)     the internal audit department responsibilities, budget and staffing;
and to report to the Board on such meetings;
V.    Oversight in Respect of the External Auditor
(a)    review any letter, report or other communication from the external auditor in respect of any identified weakness in internal control or unadjusted difference and management’s response and follow‑up, inquire regularly of management and the external auditor of any significant issues between them and how they have been resolved, and intervene in the resolution if required;
(b)    receive and review annually the external auditor’s formal written statement of independence delineating all relationships between itself and the Company;
(c)    meet separately with the external auditor to review any problems or difficulties the external auditor may have encountered and specifically:
(i)    any difficulties which were encountered in the course of the audit work, including any restrictions on the scope of activities or access to required information, and any disagreements with management;
(ii)    any changes required in the planned scope of the audit;
and to report to the Board on such meetings;
(d)    meet with the external auditor prior to the audit to review the planning and staffing of the audit;
(e)    receive and review annually the external auditor's written report on their own internal quality control procedures; any material issues raised by the most recent internal quality control review, or peer review, of the external auditor, or by any inquiry or investigation by governmental or professional authorities, within the preceding five years, and any steps taken to deal with such issues;
(f)    review and evaluate the external auditor, including the lead partner of the external auditor team;
(g)    ensure the rotation of the lead (or coordinating) audit partner having primary responsibility for the audit and the audit partner responsible for reviewing the audit as required by law, but at least every five years;
VI.    Oversight in Respect of Audit and Non‑Audit Services
(a)    pre-approve all audit services (which may entail providing comfort letters in connection with securities underwritings) and all permitted non‑audit services, other than non‑audit services where:
(i)    the aggregate amount of all such non‑audit services provided to the Company that were not pre-approved constitutes not more than five percent of the total fees paid by the Company and its subsidiaries to the external auditor during the fiscal year in which the non‑audit services are provided;
(ii)    such services were not recognized by the Company at the time of the engagement to be non‑audit services; and
(iii)    such services are promptly brought to the attention of the Audit Committee and approved, prior to the completion of the audit, by the Audit Committee or by one or more members of the Audit Committee to whom authority to grant such approvals has been delegated by the Audit Committee.
(b)    approval by the Audit Committee of a non‑audit service to be performed by the external auditor shall be disclosed as required under securities laws and regulations;
TC Energy Annual information form 2020 | 41


(c)    the Audit Committee may delegate to one or more designated members of the Audit Committee the authority to grant pre-approvals required by this subsection. The decisions of any member to whom authority is delegated to pre-approve an activity shall be presented to the Audit Committee at its first scheduled meeting following such pre-approval; and
(d)    if the Audit Committee approves an audit service within the scope of the engagement of the external auditor, such audit service shall be deemed to have been pre-approved for purposes of this subsection.
VII.    Oversight in Respect of Certain Policies
(a)    review and recommend to the Board for approval the implementation of, and significant amendments to, policies and program initiatives deemed advisable by management or the Audit Committee with respect to the Company’s code of business ethics (COBE), risk management and financial reporting policies;
(b)    obtain reports from management, the Company’s senior internal auditing executive and the external auditor and report to the Board on the status and adequacy of the Company’s efforts to ensure its businesses are conducted and its facilities are operated in an ethical, legally compliant and socially responsible manner, in accordance with the Company’s COBE;
(c)    establish a non‑traceable, confidential and anonymous system by which callers may ask for advice or report any ethical or financial concern, ensure that procedures for the receipt, retention and treatment of complaints in respect of accounting, internal controls and auditing matters are in place, and receive reports on such matters as necessary;
(d)    annually review and assess the adequacy of the Company’s public disclosure policy; and
(e)    review and approve the Company’s hiring policy for partners, employees and former partners and employees of the present and former external auditor (recognizing the Sarbanes-Oxley Act of 2002 does not permit the CEO, controller, CFO or chief accounting officer to have participated in the Company’s audit as an employee of the external auditor during the preceding one-year period) and monitor the Company’s adherence to the policy.
VIII.    Oversight in Respect of Financial Aspects of the Company’s Canadian Pension Plans (the Company’s pension plans), specifically:
(a)review and approve annually the Statement of Investment Beliefs for the Company’s pension plans;
(b)delegate the ongoing administration and management of the financial aspects of the Canadian pension plans to the Pension Committee comprised of members of the Company’s management team appointed by the Human Resources Committee, in accordance with the Pension Committee Charter, which terms shall be approved by both the Audit Committee and the Human Resources Committee, and the terms of the Statement of Investment Beliefs;
(c)monitor the financial management activities of the Pension Committee and receive updates at least annually from the Pension Committee on the investment of the Plan assets to ensure compliance with the Statement of Investment Beliefs;
(d)    provide advice to the Human Resources Committee on any proposed changes in the Company’s pension plans in respect of any significant effect such changes may have on pension financial matters;
(e)    review and consider financial and investment reports and the funded status relating to the Company’s pension plans and recommend to the Board on pension contributions;
(f)    receive, review and report to the Board on the actuarial valuation and funding requirements for the Company’s pension plans;
(g)    approve the initial selection or change of actuary for the Company’s pension plans; and
(h)    approve the appointment or termination of the pension plans’ auditor.
IX.    U.S. Stock Plans
(a)    review and approve the engagement and related fees of the auditor for any plan of a U.S. subsidiary that
42 | TC Energy Annual information form 2020


offers Company stock to employees as an investment option under the plan.
X.    Oversight in Respect of Internal Administration
(a)    review annually the reports of the Company’s representatives on certain audit committees of subsidiaries and affiliates of the Company and any significant issues and auditor recommendations concerning such subsidiaries and affiliates; and
(b)    oversee succession planning for the senior management in finance, treasury, tax, risk, internal audit and the controllers’ group.
XI.    Information Security
(a)review quarterly, the report of the Chief Information Officer (or such other appropriate Company representative) on information security controls, education and awareness.
XII.    Oversight Function
While the Audit Committee has the responsibilities and powers set forth in this Charter, it is not the duty of the Audit Committee to plan or conduct audits or to determine that the Company’s financial statements and disclosures are complete and accurate or are in accordance with generally accepted accounting principles and applicable rules and regulations. These are the responsibilities of management and the external auditor. The Audit Committee, its Chair and any of its members who have accounting or related financial management experience or expertise, are members of the Board, appointed to the Audit Committee to provide broad oversight of the financial disclosure, financial risk and control related activities of the Company, and are specifically not accountable nor responsible for the day to day operation of such activities. Although designation of a member or members as an “audit committee financial expert” is based on that individual’s education and experience, which that individual will bring to bear in carrying out his or her duties on the Audit Committee, designation as an “audit committee financial expert” does not impose on such person any duties, obligations or liability that are greater than the duties, obligations and liability imposed on such person as a member of the Audit Committee and Board in the absence of such designation. Rather, the role of any audit committee financial expert, like the role of all Audit Committee members, is to oversee the process and not to certify or guarantee the internal or external audit of the Company’s financial information or public disclosure.
3.    COMPOSITION OF AUDIT COMMITTEE
The Audit Committee shall consist of three or more directors, a majority of whom are resident Canadians (as defined in the Canada Business Corporations Act), and all of whom are unrelated and/or independent for the purposes of applicable Canadian and United States securities law and applicable rules of any stock exchange on which the Company's securities are listed. Each member of the Audit Committee shall be financially literate and at least one member shall have accounting or related financial management expertise (as those terms are defined from time to time under the requirements or guidelines for audit committee service under securities laws and the applicable rules of any stock exchange on which the Company’s securities are listed for trading or, if it is not so defined, as that term is interpreted by the Board in its business judgment).
4.    APPOINTMENT OF AUDIT COMMITTEE MEMBERS
The members of the Audit Committee shall be appointed by the Board from time to time on the recommendation of the Governance Committee and shall hold office until the next annual meeting of shareholders or until their successors are earlier appointed or until they cease to be directors of the Company.
5.    VACANCIES
Where a vacancy occurs at any time in the membership of the Audit Committee, it may be filled by the Board on the recommendation of the Governance Committee.
6.    AUDIT COMMITTEE CHAIR
The Board shall appoint a Chair of the Audit Committee who shall:
(a)    review and approve the agenda for each meeting of the Audit Committee and, as appropriate, consult with members of management;
(b)    preside over meetings of the Audit Committee;
TC Energy Annual information form 2020 | 43


(c)    make suggestions and provide feedback from the Audit Committee to management regarding information that is or should be provided to the Audit Committee;
(d)    report to the Board on the activities of the Audit Committee relative to its recommendations, resolutions, actions and concerns; and
(e)    meet as necessary with the internal and external auditor.
7.    ABSENCE OF AUDIT COMMITTEE CHAIR
If the Chair of the Audit Committee is not present at any meeting of the Audit Committee, one of the other members of the Audit Committee present at the meeting shall be chosen by the Audit Committee to preside at the meeting.
8.    SECRETARY OF AUDIT COMMITTEE
The Corporate Secretary shall act as Secretary to the Audit Committee.
9.    MEETINGS
The Chair, or any two members of the Audit Committee, or the internal auditor, or the external auditor, may call a meeting of the Audit Committee. The Audit Committee shall meet at least quarterly. The Audit Committee shall meet periodically with management, the internal auditor and the external auditor in separate executive sessions.
10.    QUORUM
A majority of the members of the Audit Committee, present in person or by telephone or other telecommunication device that permit all persons participating in the meeting to speak to each other, shall constitute a quorum.
11.    NOTICE OF MEETINGS
Notice of the time and place of every meeting shall be given in writing, facsimile communication or by other electronic means to each member of the Audit Committee at least 24 hours prior to the time fixed for such meeting; provided, however, that a member may in any manner waive a notice of a meeting. Attendance of a member at a meeting is a waiver of notice of the meeting, except where a member attends a meeting for the express purpose of objecting to the transaction of any business on the grounds that the meeting is not lawfully called.
12.    ATTENDANCE OF COMPANY OFFICERS AND EMPLOYERS AT MEETING
At the invitation of the Chair of the Audit Committee, one or more officers or employees of the Company may attend any meeting of the Audit Committee.
13.    PROCEDURE, RECORDS AND REPORTING
The Audit Committee shall fix its own procedure at meetings, keep records of its proceedings and report to the Board when the Audit Committee may deem appropriate but not later than the next meeting of the Board.
14.    REVIEW OF CHARTER AND EVALUATION OF AUDIT COMMITTEE
The Audit Committee shall review its Charter annually or otherwise, as it deems appropriate and, if necessary, propose changes to the Governance Committee and the Board. The Audit Committee shall annually review the Audit Committee’s own performance.
15.    OUTSIDE EXPERTS AND ADVISORS
The Audit Committee is authorized, when deemed necessary or desirable, to retain and set and pay the compensation for independent counsel, outside experts and other advisors, at the Company’s expense, to advise the Audit Committee or its members independently on any matter.
16.    RELIANCE
Absent actual knowledge to the contrary (which shall be promptly reported to the Board), each member of the Audit Committee shall be entitled to rely on (i) the integrity of those persons or organizations within and outside the Company from which it receives information, (ii) the accuracy of the financial and other information provided to the Audit Committee by such persons or organizations and (iii) representations made by management and the external auditor, as to any information technology, internal audit and other non-audit services provided by the external auditor to the Company and its subsidiaries.

44 | TC Energy Annual information form 2020
Document
EXHIBIT 13.2
Management's discussion and analysis
February 17, 2021
This management's discussion and analysis (MD&A) contains information to help the reader make investment decisions about TC Energy Corporation (TC Energy). It discusses our business, operations, financial position, risks and other factors for the year ended December 31, 2020.
This MD&A should be read with our accompanying December 31, 2020 audited Consolidated financial statements and notes for the same period, which have been prepared in accordance with U.S. GAAP.
Contents
ABOUT THIS DOCUMENT
ABOUT OUR BUSINESS
 •  Three core businesses
 •  Our strategy
•  COVID-19
•  Capital program
 •  2020 Financial highlights
 •  Outlook
NATURAL GAS PIPELINES BUSINESS
CANADIAN NATURAL GAS PIPELINES
U.S. NATURAL GAS PIPELINES
MEXICO NATURAL GAS PIPELINES
LIQUIDS PIPELINES
POWER AND STORAGE
CORPORATE
FINANCIAL CONDITION
OTHER INFORMATION
 •  Enterprise risk management
 •  Controls and procedures
 •  Critical accounting estimates
 •  Financial instruments
•  Related party transactions
 •  Accounting changes
 •  Quarterly results
GLOSSARY

TC Energy Management's discussion and analysis 2020 | 9


About this document
Throughout this MD&A, the terms we, us, our and TC Energy mean TC Energy Corporation and its subsidiaries. Abbreviations and acronyms that are not defined in the document are defined in the glossary on page 110. All information is as of February 17, 2021 and all amounts are in Canadian dollars, unless noted otherwise.
FORWARD-LOOKING INFORMATION
We disclose forward-looking information to help the reader understand management's assessment of our future plans and financial outlook, and our future prospects overall.
Statements that are forward-looking are based on certain assumptions and on what we know and expect today and generally include words like anticipate, expect, believe, may, will, should, estimate or other similar words.
Forward-looking statements in this MD&A include information about the following, among other things:
our financial and operational performance, including the performance of our subsidiaries
expectations about strategies and goals for growth and expansion
expected cash flows and future financing options available, including portfolio management
expected dividend growth
expected access to and cost of capital
expected costs and schedules for planned projects, including projects under construction and in development
expected capital expenditures, contractual obligations, commitments and contingent liabilities
expected regulatory processes and outcomes
expected outcomes with respect to legal proceedings, including arbitration and insurance claims
the expected impairment charge for Keystone XL in first quarter 2021
the expected impact of future tax and accounting changes
expected industry, market and economic conditions
the expected impact of COVID-19.
Forward-looking statements do not guarantee future performance. Actual events and results could be significantly different because of assumptions, risks or uncertainties related to our business or events that happen after the date of this MD&A.
Our forward-looking information is based on the following key assumptions, and subject to the following risks and uncertainties:
Assumptions
regulatory decisions and outcomes
planned and unplanned outages and the use of our pipeline, power and storage assets
integrity and reliability of our assets
anticipated construction costs, schedules and completion dates
access to capital markets, including portfolio management
expected industry, market and economic conditions
inflation rates and commodity prices
interest, tax and foreign exchange rates
nature and scope of hedging
expected impact of COVID-19.
10 | TC Energy Management's discussion and analysis 2020


Risks and uncertainties
our ability to successfully implement our strategic priorities and whether they will yield the expected benefits
our ability to implement a capital allocation strategy aligned with maximizing shareholder value
the operating performance of our pipeline, power and storage assets
amount of capacity sold and rates achieved in our pipeline businesses
the amount of capacity payments and revenues from our power generation assets due to plant availability
production levels within supply basins
construction and completion of capital projects
cost and availability of labour, equipment and materials
the availability and market prices of commodities
access to capital markets on competitive terms
interest, tax and foreign exchange rates
performance and credit risk of our counterparties
regulatory decisions and outcomes of legal proceedings, including arbitration and insurance claims
our ability to effectively anticipate and assess changes to government policies and regulations, including those related to the environment and COVID-19
our ability to realize the value of tangible assets and contractual recoveries from impaired assets, including Keystone XL
competition in the businesses in which we operate
unexpected or unusual weather
acts of civil disobedience
cyber security and technological developments
economic conditions in North America as well as globally
global health crises, such as pandemics and epidemics, including COVID-19 and the unexpected impacts related thereto.
You can read more about these factors and others in this MD&A and in other reports we have filed with Canadian securities regulators and the SEC.
As actual results could vary significantly from the forward-looking information, you should not put undue reliance on forward-looking information and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law.
FOR MORE INFORMATION
You can find more information about TC Energy in our Annual Information Form (AIF) and other disclosure documents, which are available on SEDAR (www.sedar.com).
NON-GAAP MEASURES
This MD&A references the following non-GAAP measures:
comparable EBITDA
comparable EBIT
comparable earnings
comparable earnings per common share
funds generated from operations
comparable funds generated from operations.
These measures do not have any standardized meaning as prescribed by GAAP and therefore may not be comparable to similar measures presented by other entities.
TC Energy Management's discussion and analysis 2020 | 11


Comparable measures
We calculate comparable measures by adjusting certain GAAP measures for specific items we believe are significant but not reflective of our underlying operations in the period. Except as otherwise described herein, these comparable measures are calculated on a consistent basis from period to period and are adjusted for specific items in each period, as applicable.
Our decision not to adjust for a specific item is subjective and made after careful consideration. Specific items may include:
gains or losses on sales of assets or assets held for sale
income tax refunds, adjustments to enacted tax rates and valuation allowances
certain fair value adjustments relating to risk management activities
legal, contractual and bankruptcy settlements
impairment of goodwill, investments and other assets
acquisition and integration costs
restructuring costs.
We exclude the unrealized gains and losses from changes in the fair value of derivatives used to reduce our exposure to certain financial and commodity price risks. These derivatives generally provide effective economic hedges, but do not meet the criteria for hedge accounting. As a result, the changes in fair value are recorded in net income. As these amounts do not accurately reflect the gains and losses that will be realized at settlement, we do not consider them reflective of our underlying operations. We also exclude the unrealized foreign exchange gains and losses on the Loan receivable from affiliate as well as the corresponding proportionate share of Sur de Texas foreign exchange gains and losses, as these amounts do not accurately reflect the gains and losses that will be realized at settlement. These amounts offset within each reporting period, resulting in no impact on net income.
The following table identifies our non-GAAP measures against their most directly comparable GAAP measures.
Comparable measureGAAP measure
comparable EBITDAsegmented earnings
comparable EBITsegmented earnings
comparable earningsnet income attributable to common shares
comparable earnings per common sharenet income per common share
comparable funds generated from operationsnet cash provided by operations
Comparable EBITDA and comparable EBIT
Comparable EBITDA (comparable earnings before interest, taxes, depreciation and amortization) represents segmented earnings adjusted for certain specific items, excluding non-cash charges for depreciation and amortization. We use comparable EBITDA as a measure of our earnings from ongoing operations as it is a useful indicator of our performance and is also presented on a consolidated basis. Comparable EBIT (comparable earnings before interest and taxes) represents segmented earnings adjusted for specific items and is an effective tool for evaluating trends in each segment. Refer to the Financial results sections for each business segment for a reconciliation to segmented earnings.
Comparable earnings and comparable earnings per common share
Comparable earnings represents earnings or losses attributable to common shareholders on a consolidated basis, adjusted for specific items. Comparable earnings is comprised of segmented earnings, Interest expense, AFUDC, Interest income and other, Income tax expense, Non-controlling interests and Preferred share dividends, adjusted for specific items. Refer to the Financial highlights section for reconciliations to Net income attributable to common shares and Net income per common share.
Funds generated from operations and comparable funds generated from operations
Funds generated from operations reflects net cash provided by operations before changes in operating working capital. We believe it is a useful measure of our consolidated operating cash flows because it excludes fluctuations from working capital balances, which do not necessarily reflect underlying operations in the same period, and is used to provide a consistent measure of the cash generating performance of our assets. Comparable funds generated from operations is adjusted for the cash impact of specific items noted above. Refer to the Financial condition section for a reconciliation to Net cash provided by operations.
12 | TC Energy Management's discussion and analysis 2020


About our business
With over 70 years of experience, TC Energy is a leader in the responsible development and reliable operation of North American energy infrastructure including natural gas and liquids pipelines, power generation and natural gas storage facilities.https://cdn.kscope.io/b9f28d143b5a402af4abf79562e00d0f-aboutourbusiness_1020xv81a.jpg
TC Energy Management's discussion and analysis 2020 | 13


THREE CORE BUSINESSES
We operate in three core businesses – Natural Gas Pipelines, Liquids Pipelines and Power and Storage. In order to provide information that is aligned with how management decisions about our businesses are made and how performance of our businesses is assessed, our results are reflected in five operating segments: Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, Mexico Natural Gas Pipelines, Liquids Pipelines and Power and Storage. We also have a Corporate segment consisting of corporate and administrative functions that provide governance, financing and other support to TC Energy's business segments.
Year at-a-glance
at December 31
(millions of $)20202019
Total assets by segment  
Canadian Natural Gas Pipelines1
22,852 21,983 
U.S. Natural Gas Pipelines43,217 41,627 
Mexico Natural Gas Pipelines7,215 7,207 
Liquids Pipelines16,744 15,931 
Power and Storage2
5,062 7,788 
Corporate5,210 4,743 
100,300 99,279 
1Reflects the sale of a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership on May 22, 2020.
2Includes our Ontario natural gas-fired power plants until sold on April 29, 2020.
year ended December 31
(millions of $)20202019
Total revenues by segment  
Canadian Natural Gas Pipelines1
4,469 4,010 
U.S. Natural Gas Pipelines2
5,031 4,978 
Mexico Natural Gas Pipelines716 603 
Liquids Pipelines3
2,371 2,879 
Power and Storage4
412 785 
12,999 13,255 
1Reflects the sale of a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership on May 22, 2020.
2Includes certain Columbia Midstream assets until sold in August 2019.
3Reflects the sale of an 85 per cent equity interest in Northern Courier in July 2019.
4Includes our Ontario natural gas-fired power plants until sold on April 29, 2020 and Coolidge generating station until sold in May 2019.
year ended December 31
(millions of $)20202019
Comparable EBITDA by segment  
Canadian Natural Gas Pipelines1
2,566 2,274 
U.S. Natural Gas Pipelines2
3,638 3,480 
Mexico Natural Gas Pipelines786 605 
Liquids Pipelines3
1,700 2,192 
Power and Storage4
677 832 
Corporate(16)(17)
9,351 9,366 
1Reflects the sale of a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership on May 22, 2020.
2Includes certain Columbia Midstream assets until sold in August 2019.
3Reflects the sale of an 85 per cent equity interest in Northern Courier in July 2019.
4Includes our Ontario natural gas-fired power plants until sold on April 29, 2020 and Coolidge generating station until sold in May 2019.
14 | TC Energy Management's discussion and analysis 2020


OUR STRATEGY
Our vision is to be the leading energy infrastructure company in North America, focused on pipeline and power generation opportunities where we have, or can develop, a significant competitive advantage.
Our business consists of natural gas and crude oil transportation, storage and delivery systems in addition to power generation assets that produce electricity. These long-life infrastructure assets cover strategic North American corridors and are supported by long-term commercial arrangements and/or rate regulation, generating predictable and sustainable cash flows and earnings – the cornerstones of our low-risk business model. Key components of our strategy, set out below, support our ability to be competitive, responsible and innovative, enhance the value proposition for our shareholders and safely deliver the energy people need today and in the future.
Key components of our strategy
1Maximize the full-life value of our infrastructure assets and commercial positions
Maintaining safe, reliable operations and ensuring asset integrity, while minimizing environmental impacts, continues to be the foundation of our business
Our pipeline assets include large-scale natural gas and crude oil pipelines and associated storage facilities that connect long-life, low cost supply basins with premium North American and export markets, generating predictable and sustainable cash flows and earnings
•  Our power and non-regulated storage assets are primarily under long-term contracts that provide stable cash flows and earnings.
2Commercially develop and build new asset investment programs
• We are developing high quality, long-life assets under our current capital program, comprised of $20 billion in secured projects and $8 billion in largely commercially-supported projects under development. These investments will contribute incremental earnings and cash flows as they are placed in service
Our existing extensive footprint offers significant, highly executable in-corridor growth opportunities
• We continue to develop projects and manage construction risk in a disciplined manner that maximizes capital productivity and returns to shareholders
•  As part of our growth strategy, we rely on our experience and our regulatory, commercial, financial, legal and operational expertise to successfully permit, fund, build and integrate new pipeline and other energy facilities
•  Safety, executability, profitability and responsible ESG performance are fundamental to our investments.
3Cultivate a focused portfolio of high-quality development and investment options
•  We assess opportunities to develop and acquire energy infrastructure that complements our existing portfolio, enhances future resilience under a changing energy mix, and diversifies access to attractive supply and market regions within our risk preferences. Refer to the Enterprise risk management section for an overview of our enterprise risks
•  We focus on commercially regulated and/or long-term contracted growth initiatives in core regions of North America and prudently manage development costs, minimizing capital-at-risk in early stages of projects
We will advance selected opportunities to full development and construction when market conditions are appropriate and project risks and returns are acceptable
We monitor trends specific to energy supply and demand fundamentals, in addition to analyzing how our portfolio performs under different energy mix scenarios considering the recommendations of the Financial Stability Board's Task Force on Climate-related Financial Disclosures. This contributes to the identification of opportunities that contribute to our resilience, strengthen our asset base or improve diversification.
4Maximize our competitive strengths
• We continually seek to enhance our core competencies in safety, operational excellence, investment opportunity origination, project execution and stakeholder relations as well as key sustainability and ESG areas to ensure we deliver shareholder value. The use of a disciplined approach to capital allocation supports our ability to maximize value over the short, medium and long term. A strong focus on talent management ensures that we have the necessary capabilities to execute and deliver on our strategy.
TC Energy Management's discussion and analysis 2020 | 15


Our competitive advantage
Decades of experience in the energy infrastructure business, a disciplined approach to project management and a proven capital allocation model result in a solid competitive position as we remain focused on our purpose: to deliver the energy people need today and in the future, safely, responsibly, collaboratively and with integrity.
strong leadership and governance: we maintain rigorous governance over our approach to business ethics, enterprise risk management, competitive behaviour, operating capabilities and strategy development as well as regulatory, legal, commercial, stakeholder and financing support
a high-quality portfolio: our low-risk and enduring business model offers the scale and presence to provide essential and highly-competitive infrastructure services that enable us to maximize the full-life value of our long-life assets and commercial positions throughout all points of the business cycle
disciplined operations: our values-centred workforce is highly skilled in designing, building and operating energy infrastructure with a focus on operational excellence and a commitment to health, safety, sustainability and the environment that is suited to both today's environment as well as an evolving energy industry
financial positioning: we exhibit consistently strong financial performance, long-term stability and profitability, along with a disciplined approach to capital investment. We can access sizable amounts of competitively-priced capital to support new investment balanced with common share dividend growth while preserving financial flexibility to fund our operations in all market conditions. In addition, we continue to maintain the simplicity and understandability of our business and corporate structure
proven ability to adapt: we have a long track record of turning policy and technology changes into opportunities – for example, re-entering Mexico when the country shifted from fuel oil to natural gas, reversing pipeline flows in response to the shale gas revolution and re-purposing the underutilized Canadian Mainline pipeline capacity from natural gas to crude oil service
commitment to sustainability and ESG: we take a long-term view to managing our interactions with the environment, Indigenous groups, community members and landowners. We aim to communicate transparently on sustainability-related topics with all stakeholders and recently published 10 sustainability commitments as part of our 2020 Report on Sustainability, which support the United Nations Sustainable Development Goals
open communication: we carefully manage relationships with our customers and stakeholders and offer clear, candid communication of our prospects to investors in order to build trust and support.
Our risk preferences
The following is an overview of our risk philosophy:
Live within our means
Rely on internally-generated cash flows, existing debt capacity, partnerships and portfolio management to finance new initiatives. Reserve issuing common equity for transformational opportunities.
Project risks known and acceptable
Select investments with known, acceptable and manageable project execution risk, including stakeholder considerations.
Business underpinned by strong fundamentals
Invest in assets that are investment-grade on a stand-alone basis, with stable cash flows, supported by strong underlying macroeconomic fundamentals, conducive regulation and/or long-term contracts with creditworthy counterparties.
Manage credit metrics to ensure "top-end" sector ratings
Solid investment-grade ratings are an important competitive advantage and TC Energy will seek to ensure our credit profile remains at the top-end of the midstream sector while balancing the interests of equity and fixed income investors.
Prudent management of counterparty exposure
Limit counterparty concentration and sovereign risk; seek diversification and solid commercial arrangements underpinned by strong fundamentals.


16 | TC Energy Management's discussion and analysis 2020


COVID-19
On March 11, 2020, the World Health Organization declared the novel coronavirus, or COVID-19, a global pandemic. Company business continuity plans remain in place across our organization and we continue to effectively operate our assets, conduct commercial activities and execute on projects with a focus on health, safety and reliability. Our businesses are broadly considered essential in Canada, the United States and Mexico given the important role our infrastructure plays in providing energy to North American markets. We are confident that our robust continuity and business resumption plans for critical teams, including natural gas, liquids and power plant control as well as commercial and field operations, will continue to ensure the safe and reliable delivery of energy for our customers.
With approximately 95 per cent of our comparable EBITDA generated from rate-regulated assets and/or long-term contracts, we are largely insulated from the short-term volatility associated with fluctuations in volume throughput and commodity prices. Aside from the impact of maintenance activities and normal seasonal factors, to date we have not seen any pronounced changes in the utilization of our assets, with the exception of the Keystone Pipeline System which has experienced a reduction in uncontracted volumes that we expect to remain until market conditions rebalance and normalize. As well, we have not encountered any significant impacts on our supply chain.
In March 2020, as a result of COVID-19 impacts, Bruce Power declared force majeure with respect to its Unit 6 Major Component Replacement (MCR) and certain Asset Management work. While the MCR and Asset Management activities continue to progress, the ultimate impact of the Unit 6 force majeure at Bruce Power will depend on the extent and duration of the pandemic and their ability to implement mitigation measures throughout the project. In December 2020, the Government of British Columbia issued an order limiting the presence of construction personnel in Northern British Columbia. This order will have an impact on 2021 planned construction for the Coastal GasLink pipeline project (Coastal GasLink). The extent of the ultimate impact will depend on the duration of the restrictions. While it is too early to ascertain any long-term impact that COVID-19 may have on our capital program, in addition to the impacts on Bruce Power Unit 6 MCR and Coastal GasLink construction, directionally we have observed some slowdown of our construction activities and capital expenditures in 2020. This is largely due to permitting delays as regulators have been unable to process permits and conduct consultations within timeframes that were originally anticipated.
Capital market conditions in 2020 saw periods of extreme volatility and reduced liquidity. Despite this challenging backdrop, we were able to enhance our liquidity by continuing to access debt capital markets, completing sizable portfolio management transactions and arranging incremental committed credit facilities, which were extinguished in fourth quarter 2020 as they were no longer required. With the combination of our predictable and growing cash flows from operations, cash on hand, substantial committed credit facilities and various other financing levers available to us, we believe we are well positioned to continue to fund our obligations, including in the event similarly challenging market conditions re-emerge.
The combination of the COVID-19 pandemic and the unparalleled energy demand and supply disruption has had a significant impact on certain of our customers. While counterparty risk has heightened and the long-term impacts of COVID-19 and related disruptions on our customers are difficult to predict, we are not expecting a material negative impact to our 2021 earnings or cash flows as a result of this increased risk.
Since the pandemic began, we have endeavored to understand and respond to the requirements of the communities in which we operate. Based on the paramount needs of people in our communities, our support has focused on food security and first responder organizations. As our multi-billion dollar capital projects continue to progress, where possible, we continue to focus on buying and hiring locally, benefiting small businesses and creating jobs in many communities that have been significantly impacted by the COVID-19 crisis.
The full extent and lasting impact of the COVID-19 pandemic on the global economy is as yet undetermined but to date has included extreme volatility in financial markets and commodity prices, a significant reduction in overall economic activity, widespread extended shutdowns of businesses and supply chain disruptions. The degree to which COVID-19 has a more pronounced longer-term impact on our operations and growth projects will depend on future developments, policies and actions, all of which remain highly uncertain. Additional information regarding the risks, uncertainties and impact on our business from COVID-19 can be found throughout this MD&A including the Capital program, Outlook, Significant events within each business segment, Financial condition and Financial risks sections.
TC Energy Management's discussion and analysis 2020 | 17


CAPITAL PROGRAM
We are developing quality projects under our capital program. These long-life infrastructure assets are supported by long-term commercial arrangements with creditworthy counterparties and/or regulated business models and are expected to generate significant growth in earnings and cash flows.
Our capital program consists of $20 billion of secured projects which include commercially supported, committed projects that are either under construction or are in or preparing to commence the permitting stage. An additional $8 billion of projects under development are commercially supported (except where noted) but have greater uncertainty with respect to timing and estimated project costs and are subject to certain key approvals.
Three years of maintenance capital expenditures for our businesses are included in the secured projects table. Maintenance capital expenditures on our regulated Canadian and U.S. natural gas pipelines are added to rate base on which we have the opportunity to earn a return and recover these expenditures through current or future tolls, which is similar to our capacity capital projects on these pipelines. Tolling arrangements in our liquids pipelines business provide for the recovery of maintenance capital expenditures.
In the year ended December 31, 2020, we placed approximately $5.9 billion of capacity capital projects in service, mainly comprised of NGTL System expansions. In addition, approximately $1.8 billion of maintenance capital expenditures were incurred.
All projects are subject to cost and timing adjustments due to weather, market conditions, route refinement, permitting conditions, scheduling and timing of regulatory permits, among other factors as well as the additional restrictions and uncertainty presented by the ongoing impact of COVID-19. Amounts included in the following tables exclude capitalized interest and AFUDC.





















18 | TC Energy Management's discussion and analysis 2020


Secured projects
Expected in-service date
Estimated project cost1
Carrying value
at December 31, 2020
(billions of $)
Canadian Natural Gas Pipelines
Canadian Mainline2021-20240.2 0.1 
NGTL System2
20211.4 0.9 
20223.1 0.1 
20231.7 0.1 
2024+0.5 — 
Coastal GasLink3
20230.2 0.2 
Regulated maintenance capital expenditures2021-20232.0 — 
U.S. Natural Gas Pipelines
Other capacity capital2021-2023US 2.3 US 0.7 
Regulated maintenance capital expenditures2021-2023US 2.0 — 
Mexico Natural Gas Pipelines
Villa de Reyes2021US 0.9 US 0.8 
Tula4
— US 0.8 US 0.6 
Liquids Pipelines
Keystone XL5
— — US 2.0 
Other capacity capital2022US 0.1 — 
Recoverable maintenance capital expenditures2021-20230.1 — 
Power and Storage
Bruce Power – life extension6
2021-20242.6 1.2 
Other
Non-recoverable maintenance capital expenditures7
2021-20230.6 — 
18.5 6.7 
Foreign exchange impact on secured projects8
1.7 1.1 
Total secured projects (Cdn$)
20.2 7.8 
1Amounts reflect 100 per cent of costs related to wholly-owned assets and assets held through TC PipeLines, LP as well as cash contributions to our joint venture investments.
2Estimated project costs for 2022 and 2023 include $0.5 billion for the Foothills pipeline system related to the 2023 West Path Expansion Program.
3On May 22, 2020, we sold a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership and began to account for our remaining 35 per cent investment using equity accounting. As a result, the estimated project cost and carrying value represent our share of partner equity contributions to the project, with the expected in-service date and estimated project cost reflecting the last project update. Refer to the Canadian Natural Gas Pipelines - Significant events section for additional information regarding the ongoing review of project cost and schedule.
4Construction of the central segment of the Tula project has been delayed due to a lack of progress to successfully complete Indigenous consultation by the Secretary of Energy. Project completion is expected approximately two years after the consultation process is successfully concluded. The East Section of the Tula pipeline is available for interruptible transportation services.
5Advancement of the Keystone XL project has been suspended pending assessment of the implications and options available to us following the January 20, 2021 revocation of the Presidential Permit and an asset impairment is expected to be recorded in first quarter 2021. The Keystone XL project carrying value reflects the amount remaining after the 2015 impairment charge, along with additional amounts expended and capitalized since January 2018. A portion of the carrying value has been funded by Government of Alberta contributions or is subject to recovery from shippers under contract. Refer to the Liquids Pipelines - Significant events section for further information.
6Reflects our expected share of cash contributions for the Unit 6 MCR program costs, expected to be in service in 2023, and amounts to be invested under the Asset Management program through 2024.
7Includes non-recoverable maintenance capital expenditures from all segments and is primarily comprised of our proportionate share of maintenance capital expenditures for Bruce Power and other Power and Storage assets.
8Reflects U.S./Canada foreign exchange rate of 1.28 at December 31, 2020.
TC Energy Management's discussion and analysis 2020 | 19


Projects under development
The costs provided in the table below reflect the most recent estimates for each project as filed with the various regulatory authorities or as otherwise determined by management.
Estimated project cost1
Carrying value
at December 31, 2020
(billions of $)
U.S. Natural Gas Pipelines
Other capacity capital2
US 0.3 — 
Liquids Pipelines
Heartland Pipeline and TC Terminals3,4
0.9 0.1 
Grand Rapids Phase 23
0.7 — 
Keystone Hardisty Terminal3,4
0.3 0.1 
Power and Storage
Bruce Power – life extension5
5.9 0.2 
8.1 0.4 
Foreign exchange impact on projects under development6
0.1  
Total projects under development (Cdn$)
8.2 0.4 
1Amounts reflect our proportionate share of joint venture costs where applicable and 100 per cent of costs related to wholly-owned assets and assets held through TC PipeLines, LP.
2Includes projects subject to a positive customer FID.
3Regulatory approvals have been obtained and additional commercial support is being pursued.
4Management is currently reviewing the viability of these projects following the January 20, 2021 revocation of the Presidential Permit for the Keystone XL pipeline.
5Reflects our proportionate share of MCR program costs for Units 3, 4, 5, 7 and 8, and the remaining Asset Management program costs beyond 2024.
6Reflects U.S./Canada foreign exchange rate of 1.28 at December 31, 2020.
20 | TC Energy Management's discussion and analysis 2020


2020 FINANCIAL HIGHLIGHTS
We use certain financial measures that do not have a standardized meaning under GAAP because we believe they improve our ability to compare results between reporting periods and enhance understanding of our operating performance. Known as non-GAAP measures, they may not be comparable to similar measures provided by other companies.
Comparable EBITDA, comparable earnings, comparable earnings per common share and comparable funds generated from operations are all non-GAAP measures. Refer to page 11 for more information about the non-GAAP measures we use and pages 24 and 77 as well as the business segment Financial results sections for reconciliations to the most directly comparable GAAP measures.
year ended December 31
(millions of $, except per share amounts)202020192018
Income
Revenues12,999 13,255 13,679 
Net income attributable to common shares4,457 3,976 3,539 
per common share – basic $4.74 $4.28 $3.92 
Comparable EBITDA9,351 9,366 8,563 
Comparable earnings3,945 3,851 3,480 
per common share$4.20 $4.14 $3.86 
Cash flows
Net cash provided by operations7,058 7,082 6,555 
Comparable funds generated from operations7,385 7,117 6,522 
Capital spending1
8,900 8,784 10,929 
Proceeds from sales of assets, net of transaction costs3,407 2,398 614 
Reimbursement of costs related to capital projects in development — 470 
Balance sheet
Total assets100,300 99,279 98,920 
Long-term debt, including current portion36,885 36,985 39,971 
Junior subordinated notes8,498 8,614 7,508 
Redeemable non-controlling interest2
393 — — 
Preferred shares3,980 3,980 3,980 
Non-controlling interests1,682 1,634 1,655 
Common shareholders' equity27,418 26,783 25,358 
Dividends declared
per common share$3.24 $3.00 $2.76 
Basic common shares (millions)
– weighted average for the year 940 929 902 
– issued and outstanding at end of year940 938 918 
1Includes capacity capital expenditures, maintenance capital expenditures, capital projects in development and contributions to equity investments.
2Redeemable non-controlling interest classified in mezzanine equity.
TC Energy Management's discussion and analysis 2020 | 21


Consolidated results
year ended December 31
(millions of $, except per share amounts)202020192018
Canadian Natural Gas Pipelines1,657 1,115 1,250 
U.S. Natural Gas Pipelines2,837 2,747 1,700 
Mexico Natural Gas Pipelines669 490 510 
Liquids Pipelines1,359 1,848 1,579 
Power and Storage181 455 779 
Corporate70 (70)(54)
Total segmented earnings6,773 6,585 5,764 
Interest expense(2,228)(2,333)(2,265)
Allowance for funds used during construction349 475 526 
Interest income and other213 460 (76)
Income before income taxes5,107 5,187 3,949 
Income tax expense(194)(754)(432)
Net income4,913 4,433 3,517 
Net (income)/ loss attributable to non-controlling interests(297)(293)185 
Net income attributable to controlling interests4,616 4,140 3,702 
Preferred share dividends(159)(164)(163)
Net income attributable to common shares4,457 3,976 3,539 
Net income per common share
– basic$4.74 $4.28 $3.92 
Net income attributable to common shares in 2020 was $4.5 billion or $4.74 per share (2019 – $4.0 billion or $4.28 per share; 2018 – $3.5 billion or $3.92 per share). Net income per common share increased by $0.46 per share in 2020 compared to 2019 and $0.36 in 2019 compared to 2018 due to the increases in net income and reflects the dilutive impact of common shares issued under our DRP in 2019 and 2018 and Corporate ATM program in 2018.
The following specific items were recognized in net income attributable to common shares and were excluded from comparable earnings in the relevant periods:
2020
an after-tax gain of $402 million related to the sale of a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership (Coastal GasLink LP)
income tax valuation allowance releases of $299 million primarily related to the reassessment of deferred tax assets that were deemed more likely than not to be realized as a result of our March 31, 2020 decision to proceed with the Keystone XL project. Refer to the Liquids Pipelines - Significant events section for additional information
an additional $18 million income tax recovery related to state income taxes on the sale of certain Columbia Midstream assets
an after-tax loss of $283 million related to the Ontario natural gas-fired power plant assets sold on April 29, 2020. The total after-tax loss on this transaction was $477 million including losses accrued in 2019 upon classification of the assets as held for sale.
22 | TC Energy Management's discussion and analysis 2020


2019
an income tax valuation allowance release of $195 million related to certain prior years' U.S. tax losses resulting from our reassessment of deferred tax assets that were deemed more likely than not to be realized
an after-tax loss of $152 million related to the sale of certain Columbia Midstream assets in 2019
an after-tax loss of $194 million related to the Ontario natural gas-fired power plant assets held for sale
an after-tax gain of $115 million related to the partial sale of Northern Courier
an after-tax gain of $54 million related to the sale of the Coolidge generating station
a deferred income tax benefit of $32 million related to the impact of an Alberta corporate income tax rate reduction on our Canadian businesses not subject to rate-regulated accounting (RRA)
an after-tax loss of $6 million related to the sale of the remainder of our U.S. Northeast power marketing contracts.
2018
an after-tax net loss of $4 million related to our U.S. Northeast power marketing contracts
a $143 million after-tax gain related to the sale of our interests in the Cartier Wind power facilities
a $115 million deferred income tax recovery from an MLP regulatory liability write-off as a result of changes in U.S. income tax regulations
a $52 million recovery of deferred income taxes as a result of finalizing the impact of U.S. Tax Reform
a $27 million income tax recovery related to the sales of our U.S. Northeast power generation assets
$25 million of after-tax income recognized on Bison contract terminations
a $140 million after-tax impairment charge on Bison
a $15 million after-tax goodwill impairment charge on Tuscarora.
Refer to the Results section in each business segment and the Financial condition section of this MD&A for further discussion of these highlights.
Net income in all periods included unrealized gains and losses from changes in risk management activities which we exclude, along with the above noted items, to arrive at comparable earnings. A reconciliation of net income attributable to common shares to comparable earnings is shown in the following table.
TC Energy Management's discussion and analysis 2020 | 23


Reconciliation of net income to comparable earnings
year ended December 31
(millions of $, except per share amounts)202020192018
Net income attributable to common shares4,457 3,976 3,539 
Specific items (net of tax):
Gain on partial sale of Coastal GasLink LP(402)— — 
Income tax valuation allowance releases(299)(195)— 
Loss on sale of Columbia Midstream assets(18)152 — 
Loss on sale of Ontario natural gas-fired power plants283 194 — 
Gain on partial sale of Northern Courier  (115)— 
Gain on sale of Coolidge generating station (54)— 
Alberta corporate income tax rate reduction (32)— 
U.S. Northeast power marketing contracts 
Gain on sale of Cartier Wind power facilities — (143)
MLP regulatory liability write-off — (115)
U.S. Tax Reform — (52)
Net gain on sales of U.S. Northeast power generation assets — (27)
Bison contract terminations — (25)
Bison asset impairment — 140 
Tuscarora goodwill impairment — 15 
Risk management activities1
(76)(81)144 
Comparable earnings3,945 3,851 3,480 
Net income per common share$4.74 $4.28 $3.92 
Gain on partial sale of Coastal GasLink LP(0.43)— — 
Income tax valuation allowance releases(0.32)(0.21)— 
Loss on sale of Columbia Midstream assets(0.02)0.16 — 
Loss on sale of Ontario natural gas-fired power plants0.30 0.21 — 
Gain on partial sale of Northern Courier (0.12)— 
Gain on sale of Coolidge generating station (0.06)— 
Alberta corporate income tax rate reduction (0.03)— 
U.S. Northeast power marketing contracts 0.01 0.01 
Gain on sale of Cartier Wind power facilities — (0.16)
MLP regulatory liability write-off — (0.13)
U.S. Tax Reform — (0.06)
Net gain on sales of U.S. Northeast power generation assets — (0.03)
Bison contract terminations — (0.03)
Bison asset impairment — 0.16 
Tuscarora goodwill impairment — 0.02 
Risk management activities(0.07)(0.10)0.16 
Comparable earnings per common share$4.20 $4.14 $3.86 
24 | TC Energy Management's discussion and analysis 2020


1year ended December 31
(millions of $)202020192018
Liquids marketing(9)(72)71 
 Canadian power(2)— 
 U.S. power (52)(11)
 Natural gas storage(13)(11)(11)
 Foreign exchange126 245 (248)
 Income taxes attributable to risk management activities(26)(29)52 
 Total unrealized gains /(losses) from risk management activities76 81 (144)
Comparable EBITDA to Comparable Earnings
Comparable EBITDA represents segmented earnings adjusted for the specific items described above and excludes non-cash charges for depreciation and amortization. For further information on our reconciliation to comparable EBITDA refer to the business segment financial results sections.
year ended December 31
(millions of $, except per share amounts)202020192018
Comparable EBITDA
Canadian Natural Gas Pipelines2,566 2,274 2,379 
U.S. Natural Gas Pipelines3,638 3,480 3,035 
Mexico Natural Gas Pipelines786 605 607 
Liquids Pipelines1,700 2,192 1,849 
Power and Storage677 832 752 
Corporate(16)(17)(59)
Comparable EBITDA9,351 9,366 8,563 
Depreciation and amortization(2,590)(2,464)(2,350)
Interest expense(2,228)(2,333)(2,265)
Allowance for funds used during construction349 475 526 
Interest income and other included in comparable earnings173 162 177 
Income tax expense included in comparable earnings(654)(898)(693)
Net income attributable to non-controlling interests included in comparable earnings(297)(293)(315)
Preferred share dividends(159)(164)(163)
Comparable earnings3,945 3,851 3,480 
Comparable earnings per common share$4.20 $4.14 $3.86 
Comparable EBITDA – 2020 versus 2019
Comparable EBITDA in 2020 decreased by $15 million compared to 2019 primarily due to the net result of the following:
decreased earnings from Liquids Pipelines as a result of lower volumes on the Keystone Pipeline System, reduced contributions from liquids marketing activities and the July 2019 sale of an 85 per cent equity interest in Northern Courier
lower Power and Storage results mainly attributable to decreased Bruce Power results in 2020 primarily due to the net impact of lower overall plant generation with the commencement of the Unit 6 MCR program on January 17, 2020, partially offset by fewer outage days on the remaining units and a higher realized power price. As well, reduced earnings in Canadian Power in 2020 were largely as a result of the sale of our Ontario natural gas-fired power plants on April 29, 2020 and the May 2019 sale of our Coolidge generating station
higher comparable EBITDA from Canadian Natural Gas Pipelines primarily due to the impact of increased rate-base earnings and flow-through depreciation from additional facilities placed in service as well as higher flow-through financial charges on the NGTL System, plus Coastal GasLink development fee revenue recognized in 2020, partially offset by lower flow-through income taxes on the NGTL System and the Canadian Mainline
TC Energy Management's discussion and analysis 2020 | 25


increased contribution from Mexico Natural Gas Pipelines mainly due to higher earnings from our investment in the Sur de Texas pipeline following its September 2019 in-service. This includes revenues of US$55 million recognized in first quarter 2020 related to fees associated with our successful construction of Sur de Texas
incremental earnings in U.S. Natural Gas Pipelines from Columbia Gas and Columbia Gulf growth projects placed in service and from ANR due to the sale of natural gas from certain gas storage facilities, partially offset by decreased earnings as a result of the sale of certain Columbia Midstream assets in August 2019
foreign exchange impact of a stronger U.S. dollar on the Canadian dollar equivalent earnings from our U.S. dollar-denominated operations.
Comparable EBITDA – 2019 versus 2018
Comparable EBITDA in 2019 increased by $803 million compared to 2018 primarily due to the net result of the following:
increased contribution from U.S. Natural Gas Pipelines mainly attributable to incremental earnings from Columbia Gas and Columbia Gulf growth projects placed in service, partially offset by decreased earnings from Bison (wholly owned by TC PipeLines, LP) contract terminations and from the sale of certain Columbia Midstream assets in August 2019
increased contribution from Liquids Pipelines primarily resulting from higher volumes on the Keystone Pipeline System and earnings from liquids marketing activities, partially offset by decreased earnings as a result of the sale of an 85 per cent equity interest in Northern Courier in July 2019
higher contribution from Power and Storage primarily attributable to increased Bruce Power results from a higher realized power price, partially offset by the sale of our interests in the Cartier Wind power facilities in late 2018 and the sale of the Coolidge generating facility in May 2019
lower contribution from Canadian Natural Gas Pipelines mainly due to lower flow-through income taxes on the Canadian Mainline reflecting the impact of the Canadian Mainline 2018-2020 Tolls Review (NEB 2018 Decision) and on the NGTL System as a result of accelerated tax depreciation enacted by the Canadian Federal Government, partially offset by higher rate-base earnings and depreciation on the NGTL System as additional facilities were placed in service
foreign exchange impact of a stronger U.S. dollar on the Canadian dollar equivalent earnings from our U.S. dollar-denominated operations.
Due to the flow-through treatment of certain expenses, including income taxes and depreciation on our Canadian rate-regulated pipelines, the accelerated tax depreciation changes in 2019 and increased depreciation expense impacts our comparable EBITDA despite having no significant effect on net income.
Comparable earnings – 2020 versus 2019
Comparable earnings in 2020 were $94 million or $0.06 per common share higher than in 2019, and were primarily the net result of:
changes in comparable EBITDA described above
a decrease in income tax expense mainly due to lower flow-through income taxes on Canadian rate-regulated pipelines and the impact of higher foreign tax rate differentials
lower interest expense as a result of higher capitalized interest largely related to Keystone XL, net of the impact of Napanee completing construction in first quarter 2020, and lower interest rates on reduced levels of short-term borrowings. These were partially offset by the effect of long-term debt issuances, net of maturities, as well as the foreign exchange impact from a stronger U.S. dollar on the translation of U.S. dollar-denominated interest
a decrease in AFUDC predominantly due to NGTL System expansions placed in service and the suspension of recording AFUDC on the Tula project resulting from continued construction delays, partially offset by further construction of the Villa de Reyes pipeline
higher depreciation largely in Canadian Natural Gas Pipelines and U.S. Natural Gas Pipelines reflecting new assets placed in service. In Canadian Natural Gas Pipelines, however, it is fully recovered in tolls on a flow-through basis as discussed in comparable EBITDA above, and therefore has no significant impact on comparable earnings.
26 | TC Energy Management's discussion and analysis 2020


Comparable earnings – 2019 versus 2018
Comparable earnings in 2019 were $371 million or $0.28 per common share higher than in 2018, and were primarily the net result of:
changes in comparable EBITDA described above
higher income tax expense due to increased comparable earnings before income taxes and lower foreign tax rate differentials, partially offset by lower flow-through income taxes on the Canadian Mainline reflecting the impact of the NEB 2018 Decision and on the NGTL System from the effect of accelerated tax depreciation
higher depreciation largely in Canadian Natural Gas Pipelines, which is subject to flow-through treatment, and U.S. Natural Gas Pipelines, both reflecting new projects placed in service
increased interest expense primarily as a result of long-term debt issuances, net of maturities, the foreign exchange impact on translation of U.S. dollar-denominated interest and higher levels of short-term borrowings, partially offset by higher capitalized interest
lower AFUDC primarily due to Columbia Gas and Columbia Gulf growth projects placed in service, partially offset by capital expenditures on our NGTL System and continued investment in our Mexico projects.
Comparable earnings per share reflected the dilutive impact of common shares issued under our DRP in 2019 and 2018, and Corporate ATM program in 2018. Refer to the Financial condition section of this MD&A for further information on common share issuances.
Cash flows
Net cash provided by operations of $7.1 billion in 2020 remained consistent with 2019, and comparable funds generated from operations of $7.4 billion were four per cent higher in 2020 compared to 2019, primarily due to the collection of fees related to the construction of Sur de Texas and Coastal GasLink, the recovery of higher depreciation on the NGTL System and higher comparable earnings, partially offset by lower distributions from the operating activities of our equity investments.
Funds used in investing activities
Capital spending1
year ended December 31
(millions of $)202020192018
Canadian Natural Gas Pipelines3,608 3,906 2,478 
U.S. Natural Gas Pipelines2,785 2,516 5,771 
Mexico Natural Gas Pipelines173 357 797 
Liquids Pipelines1,442 954 581 
Power and Storage834 1,019 1,257 
Corporate58 32 45 
8,900 8,784 10,929 
1Capital spending includes capacity capital expenditures, maintenance capital expenditures, capital projects in development and contributions to equity investments.
In 2020 and 2019, we invested $8.9 billion and $8.8 billion, respectively, in capital projects to maintain and optimize the value of our existing assets and to develop new, complementary assets in high-demand areas. Our total capital spending in 2020 and 2019 included contributions of $0.8 billion and $0.6 billion, respectively, to our equity investments, predominantly related to Bruce Power.
Proceeds from sales of assets
In 2020, we completed the following portfolio management transactions. All cash proceeds amounts are prior to income tax and post-closing adjustments:
the sale of a 65 per cent equity interest in Coastal GasLink LP for proceeds of $656 million
the sale of our Ontario natural gas-fired power plants for net proceeds of approximately $2.8 billion.
In addition to the proceeds from the above transactions, in 2020, we received a $1.5 billion distribution from a Coastal GasLink LP project-level credit facility draw which preceded the equity sale.
TC Energy Management's discussion and analysis 2020 | 27


In 2019, we completed the following portfolio management transactions. All cash proceeds amounts are prior to income tax and post-closing adjustments:
the sale of certain Columbia Midstream assets for proceeds of approximately US$1.3 billion
the sale of the Coolidge generating station for proceeds of US$448 million
the sale of an 85 per cent equity interest in Northern Courier for proceeds of $144 million.
In addition to the proceeds from the above transactions, in 2019, we received a $1.0 billion distribution from a Northern Courier debt issuance which preceded the equity sale.
Balance sheet
We continue to maintain a solid financial position while growing our total assets by $1.0 billion in 2020. At December 31, 2020, common shareholders' equity, including non-controlling interests, represented 35 per cent (2019 – 35 per cent) of our capital structure, while other subordinated capital, in the form of junior subordinated notes, redeemable non-controlling interest and preferred shares, represented an additional 16 per cent (2019 – 16 per cent). Refer to the Financial condition section for more information about our capital structure.
Dividends
We increased the quarterly dividend on our outstanding common shares by 7.4 per cent to $0.87 per common share for the quarter ending March 31, 2021 which equates to an annual dividend of $3.48 per common share. This was the 21st consecutive year we have increased the dividend on our common shares and is consistent with our goal of growing our common share dividend at an average annual rate of five to seven per cent.
Dividend reinvestment plan
Under the DRP, eligible holders of common and preferred shares of TC Energy can reinvest their dividends and make optional cash payments to obtain additional TC Energy common shares. From July 1, 2016 to October 31, 2019, participation was satisfied through common shares issued from treasury at a discount of two per cent to market prices over a specified period.
Commencing with the dividends declared October 31, 2019, common shares purchased with reinvested cash dividends under TC Energy’s DRP are instead acquired on the open market at 100 per cent of the weighted average purchase price. The DRP is available for dividends payable on TC Energy's common and preferred shares.
Cash dividends paid
year ended December 31
(millions of $)202020192018
Common shares2,987 1,798 1,571 
Preferred shares159 160 158 
28 | TC Energy Management's discussion and analysis 2020


OUTLOOK
Comparable earnings
Our 2021 comparable earnings per common share are expected to be generally consistent with 2020 considering the net impact of the following:
growth in the NGTL System and increased incentive earnings from the Canadian Mainline
increased Coastal GasLink development fee revenue due to an expected increase in project activity
an increase in transportation rates on Columbia Gas that is dependent on the outcome of the Section 4 Rate Case filed with FERC
a full-year impact from assets placed in service in 2020 and new projects to be placed in service in 2021
Offset by:
reduced capitalized interest due to the revocation of the Keystone XL Presidential Permit and resulting suspension of the advancement of the project
continuing lower uncontracted volumes on the Keystone Pipeline System and reduced margins in the liquids marketing business
lower contribution from Bruce Power as a result of greater planned outage days and higher operating costs
the sale of our Ontario natural gas-fired power plants in 2020
fees recognized in 2020 associated with the construction of the Sur de Texas pipeline
suspension of AFUDC on Villa de Reyes.
We will continue to monitor the impact that COVID-19 may have on energy markets, our construction projects and regulatory proceedings and the potential effect on our 2021 comparable earnings per share.
In addition to the items noted above, a non-cash impairment on the Keystone XL project is expected to be recorded in first quarter 2021, which will be excluded from comparable earnings.
Consolidated capital spending and equity investments
We expect to spend approximately $7 billion in 2021 on growth projects, maintenance capital expenditures and contributions to equity investments. The majority of the 2021 capital program is attributable to spending on NGTL System expansions, U.S. Natural Gas Pipelines projects, the Bruce Power life extension program and normal course maintenance capital expenditures. We do not believe disruptions related to COVID-19 will be material to our overall 2021 capital program but recognize that uncertainty exists in both the short and longer term.
Refer to the relevant business segment and Financial condition outlook sections for additional details on expected earnings and capital spending for 2021.
TC Energy Management's discussion and analysis 2020 | 29


NATURAL GAS PIPELINES BUSINESS
Our natural gas pipeline network transports natural gas from supply basins to local distribution companies, power generation plants, industrial facilities, interconnecting pipelines, LNG export terminals and other businesses across Canada, the U.S. and Mexico. Our network of pipelines taps into most major supply basins and transports over 25 per cent of continental daily natural gas needs through:
wholly-owned natural gas pipelines – 81,500 km (50,640 miles)
partially-owned natural gas pipelines – 11,921 km (7,407 miles).
In addition to our natural gas pipelines, we have regulated natural gas storage facilities in the U.S. with a total working gas capacity of 535 Bcf, making us one of the largest providers of natural gas storage and related services to key markets in North America.
Our Natural Gas Pipelines business is split into three operating segments representing its geographic diversity: Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines and Mexico Natural Gas Pipelines.
Strategy
Optimizing the value of our existing natural gas pipeline systems, while responding to the changing flow patterns of natural gas in North America, is a top priority. We also pursue new pipeline opportunities to add incremental value to our business.
Our key areas of focus include:
primarily in-corridor expansion and extension of our existing large North American natural gas pipeline footprint
connections to new and growing industrial and electric power generation markets and LDCs
expanding our systems in key locations and developing new projects to provide connectivity to LNG export terminals, both operating and proposed, along the U.S. Gulf Coast; the west coast of the U.S., Mexico and Canada; and the east coast of Canada
connections to growing Canadian and U.S. shale gas and other supplies.
Each of these areas plays a critical role in meeting the transportation requirements for supply of and demand for natural gas in North America.
Recent highlights
Canadian Natural Gas Pipelines
approximately $3.5 billion of projects placed in service in 2020 including the $1.1 billion Aitken Creek section of the $1.6 billion North Montney project in service on January 31, 2020. The final section of pipeline went into service May 1, 2020
completed the sale of a 65 per cent equity interest in Coastal GasLink LP for net proceeds of $656 million and entered into a project-level credit facility with a current total capacity of $6.8 billion
CER approved a five-year negotiated settlement on the NGTL System (NGTL System 2020-2024 Settlement)
all elements of the NGTL System Rate Design and Services Application were approved by the CER as filed
CER recommended and Governor in Council (GIC) approved the 2021 NGTL System Expansion Program
CER approved a six-year negotiated settlement on the Canadian Mainline (Mainline 2021-2026 Settlement).
U.S. Natural Gas Pipelines
placed in service approximately US$1.9 billion of projects including completion of the capital spend on the Columbia Gas Modernization II program
originated an additional US$0.8 billion of growth projects
Columbia Gas filed a Section 4 Rate Case with FERC on July 31, 2020 requesting an increase to maximum transportation rates effective February 1, 2021, subject to refund. The rate case is progressing as expected as we continue to pursue a collaborative process through settlement negotiations.
Mexico Natural Gas Pipelines
completed the Guadalajara pipeline flow reversal project and renegotiated the TSA with the CFE enabling bidirectional flows connecting LNG imports and continental natural gas to regional markets
continued construction of the Villa de Reyes pipeline project with in-service expected in 2021
assets performed with 100 per cent reliability and asset utilization continued to increase.
30 | TC Energy Management's discussion and analysis 2020


UNDERSTANDING OUR NATURAL GAS PIPELINES BUSINESS
Natural gas pipelines move natural gas from major sources of supply to locations or markets that use natural gas to meet their energy needs.
Our natural gas pipelines business builds, owns and operates a network of natural gas pipelines across North America that connects gas production to interconnects, end-use markets and LNG export terminals. The network includes underground pipelines that transport natural gas predominantly under high pressure, compressor stations that act like pumps to move large volumes of natural gas along the pipeline, meter stations that record the amount of natural gas coming on the network at receipt locations and leaving the network at delivery locations, and regulated natural gas storage facilities that provide services to customers and help maintain the overall balance of the pipeline systems.
Our major pipeline systems
The Natural Gas Pipelines map on page 34 shows our extensive pipeline network in North America that connects major supply sources and markets. The highlights shown on the map include:
Canadian Natural Gas Pipelines
NGTL System: This is our natural gas gathering and transportation system for the WCSB, connecting most of the natural gas production in western Canada to domestic and export markets. We believe we are well positioned to connect growing supply in northeast B.C. and northwest Alberta. Our large capital program for new pipeline facilities is driven by these two supply areas, along with growing demand for intra-Alberta firm transportation for electric power generation conversion from coal, oil sands development and petro-chemical feedstock as well as to our major export points at the Empress and Alberta/B.C. delivery locations. The NGTL System is also well positioned to connect WCSB supply to LNG export facilities on the Canadian west coast, through future extensions of the system or future connections to other pipelines serving that area.
Canadian Mainline: This pipeline supplies markets in Ontario, Québec, the Canadian Maritimes as well as the Midwest and Northeast U.S. from the WCSB and, through interconnects, from the Appalachian basin.
U.S. Natural Gas Pipelines
Columbia Gas: This is our natural gas transportation system for the Appalachian basin, which contains the Marcellus and Utica shale plays, two of the largest natural gas shale plays in North America. Similar to our footprint in the WCSB, our Columbia Gas assets are well positioned to connect growing supply to markets in this area. This system also interconnects with other pipelines that provide access to key markets in the U.S. Northeast, the Midwest, the Atlantic coast and south to the Gulf of Mexico and its growing demand for natural gas to serve LNG exports.
ANR: This pipeline system connects supply basins and markets throughout the U.S. Midwest, and south to the Gulf of Mexico. This includes connecting supply in Texas, Oklahoma, the Appalachian basin and the Gulf of Mexico to markets in Wisconsin, Michigan, Illinois and Ohio. In addition, ANR has bidirectional capability on its Southeast Mainline and delivers gas produced from the Appalachian basin to customers throughout the U.S. Gulf Coast region.
Columbia Gulf: This pipeline system transports growing Appalachian basin supplies to various U.S. Gulf Coast markets and LNG export terminals from its interconnections with Columbia Gas and other pipelines.
TC PipeLines, LP: We own a 25.5 per cent interest in TC PipeLines, LP, which has ownership interests in eight wholly-owned or partially-owned natural gas pipelines serving major markets in the U.S. Refer to the Corporate - Significant events section for additional information regarding the proposed acquisition of all outstanding common units not beneficially owned by TC Energy or our affiliates in exchange for TC Energy common shares.
Mexico Natural Gas Pipelines
Sur de Texas: This offshore pipeline transports 20 per cent of Mexico's natural gas requirements from Texas to power and industrial markets in the eastern and central regions of the country. We own a 60 per cent interest in and are the operator of this pipeline.
Northwest System: The Topolobampo and Mazatlán pipelines make up our Mexico northwest system. The system runs through the states of Chihuahua and Sinaloa, supplying power plants and industrial facilities, bringing natural gas to a region of the country that previously did not have access to it.
TC Energy Management's discussion and analysis 2020 | 31


TGNH System: This system is located in the central region of Mexico and is comprised of the Tamazunchale pipeline and the Tula and Villa de Reyes pipelines currently under construction. This system supplies or will supply several power plants and industrial facilities in Veracruz, San Luis Potosí, Querétaro and Hidalgo. It has interconnects with upstream pipelines that bring in supply from the Agua Dulce and Waha basins in Texas.
Guadalajara: This bidirectional pipeline connects imported LNG supply near Manzanillo and continental gas supply near Guadalajara to power plants and industrial customers in the states of Colima and Jalisco.
Regulation of tolls and cost recovery
Our natural gas pipelines are generally regulated by the CER in Canada, FERC in the U.S. and CRE in Mexico. These entities regulate the construction, operation and requested abandonment of pipeline infrastructure.
Regulators in Canada, the U.S. and Mexico allow us to recover costs to operate the network by collecting tolls for services. These tolls generally include a return on our capital invested in the assets or rate base as well as recovery of the rate base over time through depreciation. Other costs generally recovered through tolls include OM&A, taxes and interest on debt. The regulators review our costs to ensure they are reasonable and prudently incurred and approve tolls that provide a reasonable opportunity to recover those costs.
Business environment and strategic priorities
The North American natural gas pipeline network has been developed to connect diverse supply regions to domestic markets and, increasingly, to meet demand from LNG export facilities. Use and growth of this infrastructure is affected by changes in the location and relative cost of natural gas supplies as well as changes in the location of markets and level of demand.
We have significant pipeline footprints that serve two of the most prolific supply regions of North America – the WCSB and the Appalachian basin. Our pipelines also source natural gas from other significant basins including the Rockies, Williston, Haynesville, Fayetteville and Anadarko basins as well as the Gulf of Mexico. We expect continued growth in North American natural gas production to meet demand within growing domestic markets, particularly in the electric generation and industrial sectors which benefit from a relatively low natural gas price. In addition, North American supply is expected to benefit from increased natural gas demand in Mexico and access to international markets via LNG exports. We expect North American natural gas demand, including LNG exports, of approximately 128 Bcf/d by 2025, reflecting an increase of approximately 17 Bcf/d from 2020 levels.
This expected increased demand for natural gas, coupled with the replacement of existing supply sources that have an approximate 25 per cent annual decline rate, implies that over 45 Bcf/d of new natural gas supply connections will be needed in the next two years, providing investment opportunities for pipeline infrastructure companies to build new facilities or increase utilization of the existing footprint.
Changing demand
The growing supply of natural gas has resulted in relatively low natural gas prices in North America which has supported increased demand, particularly in the following areas:
natural gas-fired electric-power generation
petrochemical and industrial facilities
Alberta oil sands
increased demand in Mexico to fuel power generation and other industrial facilities.
Natural gas producers continue to progress opportunities to sell natural gas to global markets which involves connecting natural gas supplies to LNG export terminals, both operating and proposed, along the U.S. Gulf Coast; the west coast of Canada, the U.S. and Mexico; and the east coast of Canada. The demand created by the addition of these new markets provides opportunities for us to build new pipeline infrastructure and to increase throughput on our existing pipelines.
32 | TC Energy Management's discussion and analysis 2020


Commodity prices
In general, the profitability of our natural gas pipelines business is not directly tied to commodity prices given we are a transporter of the commodity and the fixed transportation costs are not tied to the price of natural gas. However, the cyclical supply and demand nature of commodities and related pricing can have an indirect impact on our business where producers may choose to accelerate or delay development of gas reserves or, similarly on the demand side, projects requiring natural gas may be accelerated or delayed depending on market or price conditions. For example, lower natural gas prices have allowed North American natural gas to gain market share over coal in serving power generation markets and to compete globally through LNG exports.
More competition
Changes in supply and demand levels and locations have resulted in increased competition to provide transportation services throughout North America. Our well-distributed footprint of natural gas pipelines, particularly in the liquids-rich and low-cost WCSB and the Appalachian basin, both of which are connected to North American demand centres, has placed us in a strong competitive position. Incumbent pipelines benefit from the connectivity and economies of scale afforded by the base infrastructure as well as existing right-of-way and operational synergies given the increasing challenges of siting and permitting new pipeline construction and expansions. We have and will continue to offer competitive services to capture growing supply and North American demand that now includes access to global markets through LNG exports.
Strategic priorities
Our pipelines deliver the natural gas that millions of individuals and businesses across North America rely on for their energy needs. We are focused on capturing opportunities resulting from growing natural gas supply and connecting new markets while satisfying increasing demand for natural gas within existing markets. We are also focused on adapting our existing assets to the changing natural gas flow dynamics.
In 2021, some of our key focus areas will be the continued execution of our existing capital program that includes further investment in the NGTL System, continued construction of Coastal GasLink as well as the completion and initiation of new pipeline projects in the U.S. and Mexico. We will also continue to pursue the next wave of growth opportunities. Our goal is to place all of our projects in service on time and on budget while ensuring the safety of the environment and general public impacted by the construction and operation of these facilities.
Our U.S. and Mexico natural gas marketing entities will complement pipeline operations and generate non-regulated revenues by managing the procurement of natural gas supply and pipeline transportation capacity for natural gas customers within our pipeline corridors.
TC Energy Management's discussion and analysis 2020 | 33



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34 | TC Energy Management's discussion and analysis 2020


We are the operator of all of the following natural gas pipelines and regulated natural gas storage assets except for Iroquois.
LengthDescriptionEffective
ownership
Canadian pipelines   
1NGTL System 24,622 km
(15,299 miles)
Receives, transports and delivers natural gas within Alberta and B.C., and connects with the Canadian Mainline, Foothills system and third-party pipelines.100 %
2Canadian Mainline14,082 km
(8,750 miles)
Transports natural gas from the Alberta/Saskatchewan border and the Ontario/U.S. border to serve eastern Canada and interconnects to the U.S.100 %
3Foothills1,236 km
(768 miles)
Transports natural gas from central Alberta to the U.S. border for export to the U.S. Midwest, Pacific Northwest, California and Nevada.100 %
4Trans Québec & Maritimes (TQM)574 km
(357 miles)
Connects with the Canadian Mainline near the Ontario/Québec border to transport natural gas to the Montréal to Québec City corridor, and interconnects with the Portland pipeline system.50 %
5Ventures LP133 km
(83 miles)
Transports natural gas to the oil sands region near Fort McMurray, Alberta. 100 %
Great Lakes Canada1
60 km
(37 miles)
Transports natural gas from the Great Lakes system in the U.S. to a point near Dawn, Ontario through a connection at the U.S. border underneath the St. Clair River.100 %
U.S. pipelines and gas storage assets   
6Columbia Gas18,815 km
(11,691 miles)
Transports natural gas primarily from the Appalachian basin to markets and pipeline interconnects throughout the U.S. Northeast, Midwest and Atlantic regions.100 %
6aColumbia Storage285 BcfProvides regulated underground natural gas storage service from several facilities (not all shown) to customers in key eastern markets. We also own a 50 per cent interest in the 12 Bcf Hardy Storage facility.100 %
7ANR15,075 km
(9,367 miles)
Transports natural gas from various supply basins to markets throughout the U.S. Midwest and U.S. Gulf Coast.100 %
7aANR Storage250 BcfProvides regulated underground natural gas storage service from several facilities (not all shown) to customers in key mid-western markets.  
8Columbia Gulf5,419 km
(3,367 miles)
Transports natural gas to various markets and pipeline interconnects in the southern U.S. and U.S. Gulf Coast.100 %
9
Great Lakes2
3,404 km
(2,115 miles)
Connects with the Canadian Mainline near Emerson, Manitoba and to Great Lakes Canada near St Clair, Ontario, plus interconnects with ANR at Crystal Falls and Farwell in Michigan, to transport natural gas to eastern Canada and the U.S. Midwest. We effectively own 65.4 per cent of the system through the combination of our 53.6 per cent direct ownership interest and our 25.5 per cent interest in TC PipeLines, LP.65.4 %
10
Gas Transmission Northwest (GTN)2
2,216 km
(1,377 miles)
Transports WCSB and Rockies natural gas to Washington, Oregon and California. Connects with Tuscarora and Foothills. We effectively own 25.5 per cent of the system through our interest in TC PipeLines, LP.25.5 %
11Crossroads 325 km
(202 miles)
Interstate natural gas pipeline operating in Indiana and Ohio with multiple interconnects to other pipelines.100 %
12
Northern Border2
2,272 km
(1,412 miles)
Transports WCSB, Bakken and Rockies natural gas from connections with Foothills and Bison to U.S. Midwest markets. We effectively own 12.7 per cent of the system through our 25.5 per cent interest in TC PipeLines, LP.12.7 %
13Millennium 424 km
(263 miles)
Transports natural gas primarily sourced from the Marcellus shale play to markets across southern New York and the lower Hudson Valley as well as to New York City through its pipeline interconnections.

47.5 %
TC Energy Management's discussion and analysis 2020 | 35


LengthDescriptionEffective
ownership
14
Tuscarora2
491 km
(305 miles)
Transports natural gas from GTN at Malin, Oregon to markets in northeastern California and northwestern Nevada. We effectively own 25.5 per cent of the system through our interest in TC PipeLines, LP.25.5 %
15
Bison2
488 km
(303 miles)
Transports natural gas from the Powder River basin in Wyoming to Northern Border in North Dakota. We effectively own 25.5 per cent of the system through our interest in TC PipeLines, LP.25.5 %
16
Iroquois2
669 km
(416 miles)
Connects with the Canadian Mainline and serves markets in New York. We effectively own 13.2 per cent of the system through a 0.7 per cent direct ownership and our 25.5 per cent interest in TC PipeLines, LP.13.2 %
17
Portland 2
475 km
(295 miles)
Connects with TQM near East Hereford, Québec to deliver natural gas to customers in the U.S. Northeast and Canadian Maritimes. We effectively own 15.7 per cent of the system through our 25.5 per cent interest in TC PipeLines, LP.15.7 %
18
North Baja2
138 km
(86 miles)
Transports natural gas between Arizona and California and connects with a third-party pipeline on the California/Mexico border. We effectively own 25.5 per cent of the system through our interest in TC PipeLines, LP.25.5 %
Mexico pipelines   
19Topolobampo572 km
(355 miles)
Transports natural gas to El Oro and Topolobampo, Sinaloa, from interconnects with third-party pipelines in El Encino, Chihuahua, and El Oro.100 %
20Sur de Texas770 km
(478 miles)
Offshore pipeline that transports natural gas from the U.S.– Mexican border near Brownsville, Texas, to Mexican power plants in Altamira, Tamaulipas and Tuxpan, Veracruz, where it interconnects with the Tamazunchale and Tula pipelines and other third-party facilities.60 %
21Mazatlán430 km
(267 miles)
Transports natural gas from El Oro to Mazatlán, Sinaloa and connects to the Topolobampo Pipeline at El Oro.100 %
22Tamazunchale370 km
(230 miles)
Transports natural gas from Naranjos, Veracruz to Tamazunchale, San Luis Potosi and on to El Sauz, Querétaro in central Mexico.100 %
23Guadalajara313 km
(194 miles)
Bidirectional pipeline that connects imported LNG supply near Manzanillo and continental gas supply near Guadalajara to power plants and industrial customers in the states of Colima and Jalisco.100 %
24Tula – East Section48 km
(30 miles)
The East Section of the Tula pipeline is available to transport natural gas from Sur de Texas to power plants in Tuxpan, Veracruz.100 %
Under construction3
Canadian pipelines   
NGTL System 2021 Facilities1
365 km
(227 miles)
An expansion program on the NGTL System including multiple pipeline projects and compression additions with in-service dates expected by April 2022 along with other facilities.100%
25Coastal GasLink670 km
(416 miles)
A greenfield project to deliver natural gas from the Montney gas producing region to LNG Canada's liquefaction facility under construction near Kitimat, B.C.35%
36 | TC Energy Management's discussion and analysis 2020


Under construction3 (continued)
LengthDescriptionEffective
ownership
U.S. pipelines
Louisiana XPress4
     n/aAn expansion project on Columbia Gulf through compressor station modifications and additions with interim in-service currently in place and full in-service expected in 2022.100%
Grand Chenier XPress4
     n/aAn expansion project on the ANR pipeline through compressor station modifications and additions with expected in-service commencing in 2021 and 2022.100%
Mexico pipelines
26Villa de Reyes420 km
(261 miles)
This bidirectional pipeline will transport natural gas to Tula, Hidalgo and Villa de Reyes, San Luis Potosí, connecting to the Tamazunchale and Tula pipelines as well as other pipeline systems, and the Salamanca industrial complex in the state of Guanajuato.100%
27Tula (excluding the East Section)276 km
(171 miles)
The pipeline will interconnect the completed east segment with Villa de Reyes near Tula, Hidalgo to supply natural gas to CFE combined-cycle power generating facilities in central Mexico. 100%
Permitting and pre-construction phase1,3
Canadian pipelines   
NGTL System 2022 Facilities221 km
(137 miles)
The 2022 NGTL System Expansion Program, including multiple pipeline projects and compression additions, along with other facilities. Expected completion is by April 2022 and April 2023.100%
NGTL System 2023 Facilities228 km
(142 miles)
The 2023 Expansion Program for the NGTL System and Foothills including multiple pipeline projects and compression additions with expected in-service dates in 2022, 2023 and 2024.100%
U.S. pipelines   
Elwood Power/ANR Horsepower Replacement4
     n/aA reliability project on the ANR pipeline that will replace, upgrade and modernize certain facilities with expected in-service in 2022.100%
Wisconsin Access4
     n/aA reliability project on the ANR pipeline that will replace, upgrade and modernize certain facilities with expected in-service in 2022.100%
GTN XPress4
     n/aAn expansion project of GTN through compressor station modifications and additions with expected in-service commencing in 2022 and 2023.25.5%
Alberta XPress4
     n/a An expansion project of the ANR pipeline through compressor station modifications and additions with expected in-service commencing in 2022.100%
In development
U.S. pipelines
East Lateral XPress1,4
     n/aAn expansion project on Columbia Gulf through compressor station modifications and additions with an expected in-service date of 2023.100%
1Facilities and some pipelines are not shown on the map.
2The ownership of these assets would increase dependent on the outcome of the proposed merger between TC Energy and TC PipeLines, LP. Refer to the Corporate - Significant events section for additional information.
3Final pipe lengths are subject to change during construction and/or final design considerations.
4Project includes compressor station modifications and additions with no additional pipe length.
TC Energy Management's discussion and analysis 2020 | 37


Canadian Natural Gas Pipelines
UNDERSTANDING OUR CANADIAN NATURAL GAS PIPELINES SEGMENT
The Canadian natural gas pipeline business is subject to regulation by various federal and provincial governmental agencies. The CER has jurisdiction over our regulated Canadian natural gas interprovincial pipeline systems, while provincial regulators have jurisdiction over pipeline systems operating entirely within a single province. All of our major Canadian natural gas pipeline assets are regulated by the CER with the exception of Coastal GasLink, which is currently under construction.
For the interprovincial natural gas pipelines it regulates, the CER approves tolls and services that are in the public interest and provide a reasonable opportunity for a pipeline to recover its costs to operate the pipeline. Included in the overall toll is a return on the investment we have made in the assets, referred to as the return on equity. Equity is generally 40 per cent of the deemed capital structure, with the remaining 60 per cent debt. Typically, tolls are based on the cost of providing service, including the cost of financing, divided by a forecast of throughput volumes. Any variance in either costs or the actual volumes transported can result in an over-collection or under-collection of revenues that is normally trued up the following year in the calculation of the tolls for that period. The return on equity, however, would continue to be earned at the rate approved by the CER.
We and our shippers can also establish settlement arrangements, subject to approval by the CER, that may have elements that vary from the typical toll-setting process. Settlements can include longer terms and mechanisms such as incentive agreements that can have an impact on the actual return on equity achieved. Examples include fixing the OM&A component in determining revenue requirements, where variances are to the pipeline's account or shared between the pipeline and shippers.
The NGTL System is operating under a five-year revenue requirement settlement for 2020-2024 that includes an incentive mechanism for certain operating costs. The Canadian Mainline was in the final year of a six-year fixed toll settlement that included an incentive arrangement, which ended on December 31, 2020. As of January 1, 2021, the Canadian Mainline will operate under a new six-year settlement which also includes an incentive to decrease costs and/or increase revenues.
SIGNIFICANT EVENTS
Coastal GasLink Pipeline Project
On May 22, 2020, we completed the sale of a 65 per cent equity interest in Coastal GasLink LP for net proceeds of $656 million before post-closing adjustments and recorded a pre-tax gain of $364 million ($402 million after tax). The after-tax gain includes the gain on sale, utilization of previously unrecognized tax loss benefits and the required remeasurement of our 35 per cent retained ownership to fair value including a derivative instrument used to hedge the interest rate risk on the project-level credit facilities. Under the terms of the equity purchase agreement, the net proceeds included reimbursement of a 65 per cent equity share of project costs incurred to May 22, 2020. As part of the transaction, we were contracted by Coastal GasLink LP to construct and operate the pipeline. Effective with closing, we commenced recognition of development fee revenue earned during the construction of the pipeline for management and financial services provided and began accounting for our remaining 35 per cent investment using equity accounting.
In conjunction with the equity sale, Coastal GasLink LP entered into project-level credit facilities with a current total capacity of $6.8 billion which will fund the majority of the construction costs of Coastal GasLink. Immediately preceding the equity sale, Coastal GasLink LP drew down $1.6 billion on the facilities, of which approximately $1.5 billion was paid to TC Energy. Coastal GasLink LP has also entered into a subordinated demand revolving credit facility with TC Energy on commercial terms to provide additional short-term liquidity and funding flexibility to the project.
We continue to work with the 20 First Nations that have executed agreements with Coastal GasLink LP to provide them with an opportunity to invest in the project through an option to acquire a 10 per cent equity interest.
The introduction of partners, utilization of dedicated project-level credit facilities, recovery of cash payments through construction for carrying charges on costs incurred and remuneration for costs paid to close of the sale are expected to substantially satisfy our funding requirements through project completion.
Due to COVID-19, on December 29, 2020, the British Columbia Provincial Health Officer issued an order restricting the number of workers on site for industrial projects in the Northern Health Authority region of British Columbia. Industrial projects must submit restart plans to the Provincial Health Officer detailing steps to resume site work. Coastal GasLink LP is working with the provincial health authorities to safely resume construction activities in accordance with the objectives and timelines defined in the order.
38 | TC Energy Management's discussion and analysis 2020


The project is working with LNG Canada on establishing a revised project plan for Coastal GasLink. We expect that project costs will increase significantly and the schedule will be delayed compared to the previously disclosed estimate due to scope increases, permit delays and the impacts from COVID-19, including the provincial health order, although Coastal GasLink will continue to mitigate these impacts to the extent possible. These incremental costs will be included in the final pipeline tolls, subject to certain conditions. We do not anticipate our future equity contributions will increase significantly following the conclusion of this process.
NGTL System
In the year ended December 31, 2020, the NGTL System placed approximately $3.4 billion of capacity projects in service.
NGTL System Expansion Programs
On February 19, 2020, the CER issued a report recommending that the GIC approve the 2021 NGTL System Expansion Program, which the GIC approved on October 19, 2020. The NGTL System subsequently progressed construction activities in accordance with the regulatory requirements resulting in compressor station field work beginning in December 2020 and pipeline construction activities in January 2021.
Once facilities are placed in service, the 2021 NGTL System Expansion Program is expected to provide 1.59 PJ/d (1.45 Bcf/d) of incremental system capacity underpinned by long-term receipt and delivery contracts, connecting incremental supply to growing intra-basin and export markets. In-service is expected to commence in late 2021 with remaining program components completed by April 2022.
In second quarter 2020, the NGTL System held a Capacity Optimization Open Season soliciting requests for the deferral or advancement of pending contracts to assist customers in optimizing their transportation service needs and align system expansions with customer growth requirements. Following analysis of the results of the open season, we concluded that all proposed system expansion projects continue to be required to meet aggregate system demand, although the in-service dates for some facilities have been delayed. This resulted in the deferral of a portion of planned capital program spending from 2020 and 2021 to 2022 through 2024. The net impact of these deferrals, together with some expected increase in project costs on the 2021 NGTL System Expansion Program, have been incorporated into the Secured projects table in this MD&A.
North Montney
The North Montney project consists of approximately 206 km (128 miles) of new pipeline along with three compressor units and 13 meter stations. On January 31, 2020, the $1.1 billion Aitken Creek section of the North Montney project was placed into service with the final section of the project, Kahta South, in service on May 1, 2020. All compressor stations, pipeline sections and 11 of the 13 meter stations are complete and operational, with the remaining two meter stations expected to be in service in 2021.
NGTL System Rate Design
In March 2019, the NGTL System Rate Design and Services Application was filed with the NEB which addressed rate design, terms and conditions of service for the NGTL System and a tolling methodology for the North Montney Mainline. The CER issued a decision on March 25, 2020 approving all elements of the application as filed.
NGTL System Revenue Requirement Settlement
On August 17, 2020, the CER approved the NGTL System's 2020-2024 Revenue Requirement Settlement negotiated with its customers and other interested parties. The settlement, effective January 1, 2020, maintains the equity return at 10.1 per cent on 40 per cent deemed common equity, provides the NGTL System with the opportunity to increase depreciation rates if tolls fall below projected levels and includes an incentive mechanism for certain operating costs where variances from projected amounts are shared between the NGTL System and its customers. It also includes a mechanism to review the settlement should tolls exceed a pre-determined level, without affecting the equity return.
Canadian Mainline
During 2020, the Canadian Mainline placed approximately $0.2 billion of capacity projects in service.
On April 17, 2020, the CER approved a six-year unanimously supported negotiated settlement between the Canadian Mainline, its customers and other stakeholders. The settlement, effective January 1, 2021, sets a base equity return of 10.1 per cent on 40 per cent deemed common equity and includes an incentive to either decrease costs and/or increase revenues on the pipeline with a beneficial sharing mechanism to both the shippers and us.
TC Energy Management's discussion and analysis 2020 | 39


FINANCIAL RESULTS
The following is a reconciliation of comparable EBITDA and comparable EBIT (our non-GAAP measures) to segmented earnings (the most directly comparable GAAP measure). Refer to page 11 for more information on non-GAAP measures we use.
year ended December 31
(millions of $)202020192018
NGTL System1,509 1,210 1,197 
Canadian Mainline911 952 1,073 
Other Canadian pipelines1
146 112 109 
Comparable EBITDA2,566 2,274 2,379 
Depreciation and amortization(1,273)(1,159)(1,129)
Comparable EBIT1,293 1,115 1,250 
Specific item:
Gain on partial sale of Coastal GasLink LP364 — — 
Segmented earnings1,657 1,115 1,250 
1Includes results from Foothills, Ventures LP, Great Lakes Canada and our investment in TQM, Coastal GasLink development fee revenue as well as general and administrative and business development costs related to our Canadian Natural Gas Pipelines.
Canadian Natural Gas Pipelines segmented earnings increased by $542 million in 2020 compared to 2019 which included a pre-tax gain in 2020 of $364 million related to the sale of a 65 per cent equity interest in Coastal GasLink LP which has been excluded from our calculation of comparable EBIT and comparable earnings. Canadian Natural Gas Pipelines comparable EBIT and segmented earnings decreased by $135 million in 2019 compared to 2018.
Net income and comparable EBITDA for our rate-regulated Canadian natural gas pipelines are primarily affected by our approved ROE, our investment base, the level of deemed common equity and incentive earnings. Changes in depreciation, financial charges and income taxes also impact comparable EBITDA but do not have a significant impact on net income as they are almost entirely recovered in revenues on a flow-through basis.
Net Income and Average Investment Base
year ended December 31
(millions of $)202020192018
Net income
  NGTL System565 484 398 
  Canadian Mainline 160 173 182 
Average investment base
  NGTL System14,070 11,959 9,669 
  Canadian Mainline3,673 3,690 3,828 
Net income for the NGTL System increased by $81 million in 2020 compared to 2019 and $86 million in 2019 compared to 2018 mainly due to a higher average investment base resulting from continued system expansions. On August 17, 2020, the CER approved the NGTL System's 2020-2024 Revenue Requirement Settlement Application. This settlement, which is effective from January 1, 2020 to December 31, 2024, includes an ROE of 10.1 per cent on 40 per cent deemed equity, provides the NGTL System the opportunity to increase depreciation rates if tolls fall below pre-determined levels and includes an incentive mechanism for certain operating costs where variances from projected amounts are shared between the NGTL System and its customers. It also includes a mechanism to review the settlement should tolls exceed a pre-determined level, without affecting the equity return. The NGTL System’s 2019 and 2018 results reflected the 2018-2019 Revenue Requirement Settlement that expired on December 31, 2019 which included an ROE of 10.1 per cent on 40 per cent deemed common equity, a mechanism for sharing variances above and below a fixed annual OM&A amount and flow-through treatment of all other costs.
40 | TC Energy Management's discussion and analysis 2020


The Canadian Mainline’s net income in 2020 decreased by $13 million compared to 2019 mainly as a result of lower incentive earnings. Net income in 2019 decreased by $9 million compared to 2018 mainly as a result of lower incentive earnings and a lower average investment base, partially offset by lower carrying charges to shippers on the 2019 net revenue surplus.
In 2020, the Canadian Mainline was in the final year of a six-year fixed-toll settlement under the terms of the 2015-2030 Tolls Application approved in 2014 (the NEB 2014 Decision). The terms of the settlement included an ROE of 10.1 per cent on deemed common equity of 40 per cent, an incentive mechanism with both upside and downside risk and a $20 million after-tax annual TC Energy contribution to reduce the revenue requirement. Toll stabilization was achieved through the use of deferral accounts, namely the bridging amortization account and the long-term adjustment account (LTAA), to capture the surplus or shortfall between system revenues and cost of service for each year over the 2015-2020 six-year fixed-toll term of the NEB 2014 Decision.
The NEB 2014 Decision also directed TC Energy to file an application to review tolls for the 2018-2020 period. In December 2018, the NEB 2018 Decision was received which included an accelerated amortization of the December 31, 2017 LTAA balance and an increase to the composite depreciation rate from 3.2 per cent to 3.9 per cent which was reflected in 2019 and 2020 tolls.
Comparable EBITDA
Comparable EBITDA for Canadian Natural Gas Pipelines was $292 million higher in 2020 compared to 2019 primarily due to the net effect of:
increased rate-base earnings and flow-through depreciation due to additional facilities placed in service as well as higher flow-through financial charges on the NGTL System
lower flow-through income taxes and reduced incentive earnings on the Canadian Mainline and the NGTL System
Coastal GasLink development fee revenue recognized in 2020. Refer to the Canadian Natural Gas Pipelines - Significant events section for additional information.
Comparable EBITDA for Canadian Natural Gas Pipelines in 2019 was $105 million lower than 2018 largely resulting from the net effect of:
lower flow-through income taxes on the NGTL System and on the Canadian Mainline from the impact of the NEB 2018 Decision to accelerate amortization of the LTAA as well as accelerated tax depreciation enacted by the Canadian Federal Government in June 2019 to allow businesses in Canada to deduct the cost of their investments more quickly for income tax purposes. Due to the flow-through treatment of income taxes on our Canadian rate-regulated pipelines, such reductions to income tax reduced our comparable EBITDA despite having no significant impact on net income
increased rate-base earnings and depreciation on the NGTL System due to additional facilities that were placed in service, which were partially offset by the impact of a lower rate base in the Canadian Mainline.
Depreciation and amortization
Depreciation and amortization was $114 million higher in 2020 compared to 2019 and $30 million higher in 2019 compared to 2018 mainly due to additional NGTL System facilities placed in service in 2020 and 2019.
TC Energy Management's discussion and analysis 2020 | 41


OUTLOOK
Comparable earnings
Net income for Canadian rate-regulated pipelines is affected by changes in investment base, ROE and deemed capital structure as well as by the terms of toll settlements approved by the CER. Under the current regulatory model, earnings from Canadian rate-regulated natural gas pipelines are not materially affected by short-term fluctuations in the commodity price of natural gas, changes in throughput volumes or changes in contracted capacity levels.
Canadian Natural Gas Pipelines earnings in 2021 are expected to be higher than 2020 mainly due to continued growth in the NGTL System as we extend and expand the supply facilities in the North Montney region, enhance delivery facilities in northeastern Alberta and provide incremental service at our major border delivery locations in response to requests for firm service on the system. In addition, we expect a higher contribution from the Canadian Mainline in 2021 due to increased incentive earnings.
Other Canadian pipelines earnings are expected to be higher in 2021 due to increased Coastal GasLink development fee revenue reflecting the planned increase in project activity in 2021, subject to the extent of the impact of COVID-19 delays and restrictions.
Capital spending
We spent a total of $3.6 billion in 2020 in our Canadian natural gas pipelines business, of which $0.9 billion related to our investment in Coastal GasLink prior to the sale of an equity interest in Coastal GasLink LP as well as subsequent equity contributions to the project. We expect to spend approximately $3.4 billion in 2021, primarily on NGTL System expansion projects, Canadian Mainline capacity projects and maintenance capital expenditures, all of which are immediately reflected in investment base and related earnings.
42 | TC Energy Management's discussion and analysis 2020


U.S. Natural Gas Pipelines
UNDERSTANDING OUR U.S. NATURAL GAS PIPELINES SEGMENT
The U.S. interstate natural gas pipeline business is subject to regulation by various federal, state and local governmental agencies. FERC, however, has comprehensive jurisdiction over our U.S. natural gas business. FERC approves maximum transportation rates that are cost-based and are designed to recover the pipeline's investment, operating expenses and a reasonable return for our investors. In the U.S., we have the ability to contract for negotiated or discounted rates with shippers.
FERC does not require U.S. interstate pipelines to calculate rates annually, nor do they generally allow for the collection or refund of the variance between actual and expected revenues and costs into future years. This difference in U.S. regulation from the Canadian regulatory environment puts our U.S. pipelines at risk for the difference in expected and actual costs and revenues between rate cases. If revenues no longer provide a reasonable opportunity to recover our costs, we can file with FERC for a new determination of rates, subject to any moratorium in effect. Similarly, FERC or our shippers may institute proceedings to lower rates if they consider the return on capital invested to be unjust or unreasonable.
Similar to Canada, we can also establish settlement arrangements with our U.S. shippers that are ultimately subject to approval by FERC. Rate case moratoriums for a period of time before either we or the shippers can file for a rate review are common for a settlement in that they provide some certainty for shippers in terms of rates, eliminate the costs associated with frequent rate proceedings for all parties and can provide an incentive for pipelines to lower costs.
PHMSA Compliance Regulation
Most of our U.S. natural gas pipeline systems are subject to federal pipeline safety statutes and regulations enacted and administered by the U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration (PHMSA). PHMSA has disseminated regulations governing, among other things, maximum operating pressures, pipeline patrols and leak surveys, public awareness, operation and maintenance procedures, operator qualification, minimum depth requirements and emergency procedures. Additionally, PHMSA has put into place regulations requiring pipeline operators to develop and implement integrity management programs for certain natural gas pipelines that, in the event of a pipeline leak or rupture, could affect high-consequence areas, which are areas where a release could have the most significant adverse consequences, including high-population areas.
During 2016, PHMSA proposed new rules to revise the U.S. Federal Pipeline Safety Regulations and issued a Notice of Public Rulemaking for natural gas transmission and gathering lines that would, if adopted, impose more stringent inspection, reporting, and integrity management requirements on operators. However, PHMSA has since decided to split its 2016 proposed rule, which has become known as the Gas Mega Rule, into three separate rulemakings focusing on (1) maximum allowable operating pressure and integrity assessments on non-high consequence areas known as moderate consequence areas; (2) repair criteria, inspections and corrosion control; and (3) gathering lines. The first of these three rulemakings, for onshore natural gas transmission pipelines, was published as a final rule in October 2019. We continue to assess the operational and financial impact related to this final rule over its 15-year implementation window that began July 1, 2020 and seek to optimize recovery of those costs. The remaining rulemakings comprising the Gas Mega Rule are expected to be issued in 2021.
In addition to the rulemakings noted above, new pipeline safety legislation (Pipes Act of 2020) was signed into law on December 27, 2020 that reauthorized PHMSA pipeline safety programs which expired under the 2016 Pipeline Safety Act at the end of September 2019. We are in the process of assessing impacts associated with this new legislation.
TC PipeLines, LP
We currently own a 25.5 per cent interest in, and are the general partner of, TC PipeLines, LP, a master limited partnership (MLP) which trades on the NYSE under the symbol TCP. TC PipeLines, LP has ownership interests in the GTN, Northern Border, Bison, Great Lakes, North Baja, Tuscarora, Iroquois, and Portland pipeline systems. Our overall effective ownership for each of these assets considering the ownership through the MLP is provided in the asset listing of our major pipelines starting on page 35. Refer to the Corporate - Significant events section for additional information regarding the proposed acquisition of all outstanding common units of TC PipeLines, LP not beneficially owned by TC Energy or our affiliates.
TC Energy Management's discussion and analysis 2020 | 43


SIGNIFICANT EVENTS
Wisconsin Access
On October 28, 2020, we approved the Wisconsin Access Project that will replace, upgrade and modernize certain facilities while reducing emissions along portions of the ANR pipeline system. The enhanced facilities will improve reliability of the ANR pipeline system and also allow for additional contracted transportation services of approximately 77 TJ/d (72 MMcf/d) to be provided to utilities serving the Midwestern U.S. under long-term contracts. The anticipated in-service date of the combined project is in the second half of 2022 with an estimated cost of US$0.2 billion.
Elwood Power Project/ANR Horsepower Replacement
On July 29, 2020, we approved the Elwood Power Project/ANR Horsepower Replacement that will replace, upgrade and modernize certain facilities while reducing emissions along a highly utilized section of the ANR pipeline system. The enhanced facilities will improve reliability of the ANR pipeline system and also allow for additional contracted transportation services of approximately 132 TJ/d (123 MMcf/d) to be provided to an existing power plant near Joliet, Illinois. The anticipated in-service date of the combined project is in the second half of 2022 with an estimated cost of US$0.4 billion.
Alberta XPress
On February 12, 2020, we approved the Alberta XPress project, an expansion project on the ANR pipeline system that utilizes existing capacity on the Great Lakes and Canadian Mainline systems to connect growing supply from the WCSB to U.S. Gulf Coast LNG export markets. The project has been modified to reflect revised shipper commitments. The anticipated in-service date is in the second half of 2022 with an estimated project cost of US$0.2 billion.
BXP
BXP, a Columbia Gas project representing an upsizing of existing pipeline replacement, in conjunction with our modernization program, was partially placed into service in October 2020 with full in-service commencing on January 1, 2021.
Columbia Gas Section 4 Rate Case
Columbia Gas filed a Section 4 Rate Case with FERC on July 31, 2020 requesting an increase to Columbia Gas' maximum transportation rates effective February 1, 2021, subject to refund. The rate case is progressing as expected as we continue to pursue a collaborative process to find a mutually beneficial outcome with our customers through settlement negotiations.
Acquisition of common units of TC PipeLines, LP
On December 15, 2020, we announced that we have entered into a definitive agreement and plan of merger to acquire all the outstanding common units of TC PipeLines, LP not beneficially owned by TC Energy or our affiliates in exchange for TC Energy common shares. Refer to the Corporate - Significant events section for additional information.
44 | TC Energy Management's discussion and analysis 2020


FINANCIAL RESULTS
The following is a reconciliation of comparable EBITDA and comparable EBIT (our non-GAAP measures) to segmented earnings (the most directly comparable GAAP measure). Refer to page 11 for more information on non-GAAP measures we use.
year ended December 31
(millions of US$, unless otherwise noted)202020192018
Columbia Gas1,305 1,222 873 
ANR512 492 508 
TC PipeLines, LP1,2
119 119 138 
Columbia Gulf195 164 120 
Great Lakes3
91 86 97 
Other U.S. pipelines1,4
117 172 190 
Non-controlling interests5
375 368 415 
Comparable EBITDA2,714 2,623 2,341 
Depreciation and amortization(597)(568)(511)
Comparable EBIT2,117 2,055 1,830 
Foreign exchange impact720 671 541 
Comparable EBIT (Cdn$)
2,837 2,726 2,371 
Specific items:
Pre-tax gain on sale of Columbia Midstream assets 21 — 
Bison asset impairment6
 — (722)
Tuscarora goodwill impairment6
 — (79)
Bison contract terminations6
 — 130 
Segmented earnings (Cdn$)
2,837 2,747 1,700 
1Results reflect our earnings from TC PipeLines, LP's ownership interests in eight natural gas pipelines as well as general and administrative costs related to TC PipeLines, LP.
2In prior years, TC PipeLines, LP periodically conducted ATM issuances which decreased our ownership in TC PipeLines, LP. Effective March 2018, this program ceased to be utilized. Our ownership interest in TC PipeLines, LP was 25.5 per cent as at December 31, 2020, 2019 and 2018.
3Reflects our 53.55 per cent direct interest in Great Lakes. The remaining 46.45 per cent is held by TC PipeLines, LP.
4Reflects earnings from our effective ownership in Crossroads, Millennium and Hardy Storage and certain Columbia Midstream assets until sold in August 2019, as well as general and administrative and business development costs related to U.S. natural gas pipelines.
5Reflects earnings attributable to portions of TC PipeLines, LP, that we do not own.
6These amounts were recorded in TC PipeLines, LP. The pre-tax impact to us is 25.5 per cent of these amounts net of non-controlling interests.
U.S. Natural Gas Pipelines segmented earnings in 2020 increased by $90 million compared to 2019 and increased by $1.0 billion in 2019 compared to 2018 and included the following specific items which have been excluded from our calculation of comparable EBIT and comparable earnings:
a pre-tax gain of $21 million related to the sale of certain Columbia Midstream assets in August 2019
a $722 million pre-tax non-cash asset impairment charge in 2018 related to Bison
a $79 million pre-tax non-cash goodwill impairment charge in 2018 related to Tuscarora
$130 million of pre-tax customer termination payments in 2018 that were recorded in Revenues with respect to two of Bison’s transportation contracts.
A stronger U.S. dollar in 2020 had a positive impact on the Canadian dollar equivalent segmented earnings from our U.S. operations compared to the same period in 2019 with a similar impact on 2019 compared to 2018.
Each of the specific items in 2018 noted above are prior to recognition of the 74.5 per cent non-controlling interests in TC PipeLines, LP.
Earnings from our U.S. Natural Gas Pipelines operations are generally affected by contracted volume levels, volumes delivered and the rates charged as well as by the cost of providing services. Columbia and ANR results are also affected by the contracting and pricing of their storage capacity and incidental commodity sales. Pipeline and storage volumes and revenues are generally higher in the winter months because of the seasonal nature of the business.
TC Energy Management's discussion and analysis 2020 | 45


Comparable EBITDA for U.S. Natural Gas Pipelines was US$91 million higher in 2020 than 2019 primarily due to the net effect of:
incremental earnings from Columbia Gas and Columbia Gulf growth projects placed in service as well as lower operating costs in 2020
increased earnings from ANR due to the sale of natural gas from certain gas storage facilities
decreased earnings as a result of the sale of certain Columbia Midstream assets in August 2019.
Comparable EBITDA for U.S. Natural Gas Pipelines was US$282 million higher in 2019 than 2018 primarily due to the net effect of:
incremental earnings from Columbia Gas and Columbia Gulf growth projects placed in service
decreased earnings from Bison (wholly owned by TC PipeLines, LP) following 2018 customer agreements to settle their future contracted revenues and terminate their contracts
decreased earnings as a result of the sale of certain Columbia Midstream assets in August 2019.
Depreciation and amortization
Depreciation and amortization was US$29 million higher in 2020 compared to 2019 and was US$57 million higher in 2019 compared to 2018 mainly due to new projects placed in service. The 2019 amount also reflects lower depreciation as a result of the Bison asset impairment in 2018.
OUTLOOK
Comparable earnings
Our U.S. natural gas pipelines are largely backed by long-term take-or-pay contracts that are expected to deliver stable and consistent financial performance. Our ability to retain customers and recontract or sell capacity at favourable rates is influenced by prevailing market conditions and competitive factors, including alternatives available to end-use customers in the form of competing natural gas pipelines and supply sources as well as broader conditions that impact demand from certain customers or market segments. Earnings are also affected by the level of operational and other costs, which can be impacted by safety, environmental and other regulators' decisions, as well as customer credit risk.
U.S. Natural Gas Pipelines earnings are expected to be slightly higher in 2021 than in 2020 due to an increase in transportation rates on Columbia Gas that is dependent on the outcome of the Section 4 Rate Case filed with FERC. In addition, revenues are expected to increase following the completion of expansion projects on the Columbia Gas and ANR systems in 2021 which will provide our customers with greater access to new sources of supply while extending their market reach. Our pipeline systems continue to see historically strong demand for service and we anticipate our assets will maintain high utilization levels as were experienced in 2020. These expected positive results will be partially offset by an anticipated increase in property taxes from capital projects placed in service.
While certain of our counterparties may have varying risks to their operations from the outcomes related to COVID-19, we do not expect a significant impact to our business.
Capital spending
We spent a total of US$2.0 billion in 2020 on our U.S. natural gas pipelines and expect to spend approximately US$2.2 billion in 2021 primarily on ANR, Columbia Gulf and GTN expansion projects as well as Columbia Gas and ANR maintenance capital, which is expected to be reflected in future tolls.
46 | TC Energy Management's discussion and analysis 2020


Mexico Natural Gas Pipelines
UNDERSTANDING OUR MEXICO NATURAL GAS PIPELINES SEGMENT
For over a decade, Mexico has been undergoing a significant transition from fuel oil and diesel as its primary energy sources for electric generation to using natural gas. As a result, new natural gas pipeline infrastructure has been and continues to be required to meet the growing demand for natural gas. Large natural gas pipelines in Mexico have been developed primarily through a competitive bid process. The CFE, Mexico's state-owned electric utility, is the counterparty on all of our existing pipelines under long-term contracts, which are predominately denominated in U.S. dollars. These fixed-rate contracts are generally designed to recover the cost of service and provide a return on and of invested capital. As the pipeline developer and operator, we are at risk for operating and construction costs and in-service delay penalties, excluding force majeure events. Our Mexico pipelines have approved tariffs, services and related rates for other potential users.
SIGNIFICANT EVENTS
Tula and Villa de Reyes
The CFE initiated arbitration in June 2019 for the Tula and Villa de Reyes projects, disputing fixed capacity payments due to force majeure events. Arbitration proceedings are suspended while management advances settlement discussions with the CFE.
Villa de Reyes project construction is ongoing. Phased in-service has been delayed due to COVID-19 contingency measures which have impeded our ability to obtain work authorizations as a result of administrative closures. Subject to the timely re-opening of government agencies, we expect to complete construction of Villa de Reyes in 2021.
Guadalajara
A project to allow bidirectional flows was completed in December 2020 and the TSA with the CFE was renegotiated. The bidirectional flow allows access to either LNG imports from the Manzanillo terminus or access to continental natural gas at the Guadalajara terminus for delivery to regional markets.
FINANCIAL RESULTS
The following is a reconciliation of comparable EBITDA and comparable EBIT (our non-GAAP measures) to segmented earnings (the most directly comparable GAAP measure). Refer to page 11 for more information on non-GAAP measures we use.
year ended December 31
(millions of US$, unless otherwise noted)202020192018
Topolobampo159 159 172 
Tamazunchale120 120 127 
Mazatlán70 70 78 
Guadalajara64 65 71 
Sur de Texas1
171 43 16 
Other — 
Comparable EBITDA584 457 468 
Depreciation and amortization(87)(87)(75)
Comparable EBIT497 370 393 
Foreign exchange impact172 120 117 
Comparable EBIT and segmented earnings (Cdn$)
669 490 510 
1Represents equity income from our 60 per cent interest and fees earned from the construction and operation of the pipeline.
Mexico Natural Gas Pipelines segmented earnings in 2020 increased by $179 million compared to 2019 and decreased by $20 million in 2019 compared to 2018. A stronger U.S. dollar in 2020 had a positive impact on the Canadian dollar equivalent segmented earnings from our Mexico operations compared to the same period in 2019, with a similar impact on 2019 compared to 2018.
TC Energy Management's discussion and analysis 2020 | 47


Comparable EBITDA for Mexico Natural Gas Pipelines increased by US$127 million in 2020 compared to 2019 mainly due to higher earnings from our investment in the Sur de Texas pipeline resulting from:
increased Sur de Texas equity income from the commencement of transportation services in September 2019
revenues of US$55 million recognized in 2020 from fees associated with the successful completion of the Sur de Texas pipeline as well as ongoing fees earned from operating the pipeline.
Prior to in-service, Sur de Texas equity income primarily reflected AFUDC during construction, net of our proportionate share of interest expense on peso-denominated inter-affiliate loans. These inter-affiliate loans remain in place and our share of related interest expense in Sur de Texas continues to be fully offset by corresponding interest income recorded in Interest income and other in the Corporate segment.
Comparable EBITDA for Mexico Natural Gas Pipelines decreased by US$11 million in 2019 compared to 2018 primarily from the net effect of:
lower revenues from wholly-owned operations primarily as a result of changes in timing of revenue recognition in 2018
higher equity earnings from our investment in the Sur de Texas pipeline following its September 2019 in-service. Prior to this, Sur de Texas equity income reflected AFUDC, net of our proportionate share of interest expense on aforementioned inter-affiliate loans which is fully offset in Interest income and other.
Depreciation and amortization
Depreciation and amortization in 2020 was consistent with the same period in 2019. Depreciation and amortization in 2019 increased by US$12 million compared with the same period in 2018 reflecting new assets being placed in service and other adjustments.
OUTLOOK
Comparable earnings
Mexico Natural Gas Pipelines earnings reflect long-term, stable, principally U.S. dollar-denominated transportation contracts that are affected by the cost of providing service and include our share of equity income from our 60 per cent interest in the Sur de Texas pipeline.
Due to the long-term nature of the underlying transportation contracts, earnings are generally consistent year-over-year except when new assets are placed into service. Earnings for 2021 are expected to be lower than 2020 due to the fees recognized in 2020 associated with the completion of Sur de Texas, partially offset by the expected in-service of Villa de Reyes in 2021.
Capital spending
We spent approximately US$0.1 billion in 2020 primarily related to the construction of the Villa de Reyes pipeline. Capital spending in 2021 to complete construction of Villa de Reyes is expected to be US$0.1 billion.
48 | TC Energy Management's discussion and analysis 2020


NATURAL GAS PIPELINES – BUSINESS RISKS
The following are risks specific to our natural gas pipelines business. Refer to page 88 for information about general risks related to TC Energy as a whole, including other operational, safety and financial risks as well as our approach to risk management.
Production levels within supply basins
The NGTL System and our pipelines downstream depend largely on supply from the WCSB. Our Columbia Gas system and its connecting pipelines largely depend on Appalachian supply. We continue to monitor any changes in our customers' natural gas production plans and how these may impact our existing assets and new project schedules. There is competition amongst pipelines to connect to major basins. An overall decrease in production and/or increased competition for supply could reduce throughput on our connected pipelines that, in turn, could negatively impact overall revenues generated. The WCSB and Appalachian basins are two of the most prolific and cost-competitive basins in North America and have considerable natural gas reserves. However, the amount actually produced depends on many variables including the price of natural gas and natural gas liquids, basin-on-basin competition, pipeline and gas-processing tolls, demand within the basin, changes in regulations, and the overall value of the reserves, including liquids content.
Market access
We compete for market share with other natural gas pipelines. New supply basins being developed closer to markets we have historically served may reduce the throughput and/or distance of haul on our existing pipelines and impact revenues. New markets, including those created by LNG export facilities developed to access global natural gas demand, can lead to increased revenues through higher utilization of existing facilities and/or demand for new infrastructure. The long-term competitiveness of our pipeline systems and the avoidance of bypass pipelines will depend on our ability to adapt to changing flow patterns by offering competitive transportation services to the market.
Competition for greenfield expansion
We face competition from other pipeline companies seeking to invest in greenfield natural gas pipeline development opportunities. This competition could result in fewer projects being available that meet our investment hurdles or projects that proceed with lower overall financial returns.
Demand for pipeline capacity
Demand for pipeline capacity is ultimately the key driver that enables pipeline transportation services to be sold and is impacted by supply and market competition, variations in economic activity, weather variability, natural gas pipeline and storage competition, energy conservation and demand for and prices of alternative sources of energy. Renewal of expiring contracts and the opportunity to charge a competitive toll depends on the overall demand for transportation service. A decrease in the level of demand for our pipeline transportation services could adversely impact revenues, although overall utilization of our pipeline capacity continues to grow and warrant further investment and expansion.
Commodity prices
The cyclical supply and demand nature of commodities and related pricing can have a secondary impact on our business where our shippers may choose to accelerate or delay certain projects. This can impact the timing for the demand of transportation services and/or new natural gas pipeline infrastructure. As well, sustained low natural gas prices could impact our shippers' financial condition and their ability to meet their transportation service cost obligations.
TC Energy Management's discussion and analysis 2020 | 49


Regulatory risk
Decisions and evolving policies by regulators and other government authorities, including changes in regulation, can have an impact on the approval, timing, construction, operation and financial performance of our natural gas pipelines. There is a risk that decisions are delayed or are not favourable and therefore could adversely impact construction costs, in-service dates, anticipated revenues, and the opportunity to further invest in our systems. There is also risk of a regulator disallowing a portion of our prudently incurred costs, now or at some point in the future.
The regulatory approval process for larger infrastructure projects, including the time it takes to receive a decision, could be delayed or lead to an unfavourable decision due to influence from the evolving role of activists and other stakeholders and their impact on public opinion and government policy related to natural gas pipeline infrastructure development. In addition, a number of these matters may also involve legal disputes that are prosecuted in a court of law, thereby further impacting project costs and creating delays.
Increased scrutiny of construction and operations processes by the regulator, courts or other enforcing agencies has the potential to delay construction, increase operating costs or require additional capital investment. There is a risk of an adverse impact to income if these costs are not fully recoverable and/or reduce the competitiveness of tolls charged to customers.
We continuously manage these risks by monitoring regulatory developments and decisions to determine the possible impact on our natural gas pipelines business and the development of rate, facility and tariff applications that account for and mitigate the risks where possible.
Governmental risk
Shifts in government policy by existing bodies or following changes in government can impact our ability to grow our business. Restrictions on carbon fuel use, cross-border economic activity, and development of new infrastructure can impact our opportunities for continued growth. We are committed to working with all levels of government to ensure our business benefits and risks are understood, and mitigation strategies are implemented.
Construction and operations
Constructing and operating our pipelines to ensure transportation services are provided safely and reliably is essential to the success of our business. Interruptions in our pipeline operations impacting throughput capacity may result in reduced revenues and can affect corporate reputation as well as customer and public confidence in our operations. We manage this by investing in a highly skilled workforce, hiring third-party inspectors during construction, operating prudently, monitoring our pipeline systems continuously, using risk-based preventive maintenance programs and making effective capital investments. We use pipeline inspection equipment to regularly check the integrity of our pipelines, and repair or replace sections when necessary. We also calibrate meters regularly to ensure accuracy and employ robust reliability and integrity programs to maintain compression equipment and ensure safe and reliable operations.
50 | TC Energy Management's discussion and analysis 2020


Liquids Pipelines
Our existing liquids pipelines infrastructure connects Alberta crude oil supplies to U.S. refining markets in Illinois, Oklahoma and the U.S. Gulf Coast as well as U.S. crude oil supplies from the key market hub at Cushing, Oklahoma to the U.S. Gulf Coast. We also provide intra-Alberta liquids transportation.
Our liquids pipelines business includes:
wholly-owned liquids pipelines – approximately 4,400 km (2,700 miles)
wholly-owned operational and term storage – approximately 7 million barrels
partially-owned liquids pipelines – over 500 km (300 miles).
Strategy
Optimizing the value of our existing Liquids Pipelines assets by expanding and leveraging our existing infrastructure is a top priority. We are also pursuing emerging growth opportunities to add incremental value to our business.
Our key areas of focus include:
accessing and delivering growing North American liquids supply to key markets by expanding our crude oil pipelines infrastructure to deliver directly from supply regions seamlessly along a contiguous path to market
maximizing the value from our current operating assets and securing organic growth around these assets
positioning our business development activities to identify and capture attractive organic growth and acquisition opportunities consistent with our risk preferences
expand transportation service offerings to other areas of the liquids value chain including ancillary services such as short-term and long-term storage of liquids, which complement our pipeline transportation infrastructure.
Recent highlights
U.S. President Biden revoked the existing Presidential Permit for the Keystone XL pipeline on January 20, 2021. As a result, we have suspended the advancement of the project and are assessing the implications and options available to us
During 2020 and 2021, we achieved the following milestones towards advancing the Keystone XL pipeline:
announced that we would proceed with construction of Keystone XL which commenced in April 2020 in both the U.S. and Canada
completed the U.S./Canada border crossing on the Keystone XL pipeline in June 2020
executed a Project Labor Agreement with four pipeline trade unions (Operating Engineers, Laborers, Teamsters and United Association) to utilize 100 per cent unionized labor in the construction of the Keystone XL pipeline
announced that the Keystone XL pipeline would be operated with net-zero emissions once placed into service and would utilize 100 per cent green energy by 2030 to power the operating pump stations
entered into an agreement whereby the Government of Alberta invested approximately US$0.8 billion in equity in Keystone XL as at December 31, 2020
executed a US$4.1 billion credit facility, guaranteed by the Government of Alberta and non-recourse to us, to partially finance the construction of Keystone XL
executed definitive agreements with Natural Law Energy, a consortium of five Canadian First Nations, for a potential investment of up to $1.0 billion equity investment in Keystone XL and future liquids projects.
TC Energy Management's discussion and analysis 2020 | 51


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52 | TC Energy Management's discussion and analysis 2020


We are the operator and developer of the following:
  LengthDescriptionOwnership
Liquids pipelines   
1Keystone Pipeline System4,324 km
(2,687 miles)
Transports crude oil from Hardisty, Alberta to U.S. markets at Wood River and Patoka, Illinois, Cushing, Oklahoma, and the U.S. Gulf Coast.100 %
2MarketlinkTransports crude oil from Cushing, Oklahoma to the U.S. Gulf Coast on facilities that form part of the Keystone Pipeline System. 100 %
3Grand Rapids460 km
(287 miles)
Transports crude oil from the producing area northwest of Fort McMurray, Alberta to the Edmonton/Heartland, Alberta market region.50 %
4White Spruce72 km
(45 miles)
Transports crude oil from Canadian Natural Resources Limited's Horizon facility in northeast Alberta to the Grand Rapids pipeline.100 %
5Northern Courier90 km
(56 miles)
Transports bitumen and diluent between the Fort Hills mine site and Suncor Energy's terminal located north of Fort McMurray, Alberta.15 %
In development   
6
Keystone Hardisty Terminal1
Crude oil terminal located at Hardisty, Alberta.100 %
7
8
Heartland Pipeline and
TC Terminals1
200 km
(125 miles)
Terminal and pipeline facilities to transport crude oil from the Edmonton/Heartland, Alberta region to Hardisty, Alberta.100 %
9Grand Rapids Phase II460 km
(287 miles)
Expansion of Grand Rapids to transport additional crude oil from the producing area northwest of Fort McMurray, Alberta to the Edmonton/Heartland, Alberta market region.50 %
Advancement suspended
10
Keystone XL2
1,947 km
(1,210 miles)
To transport crude oil from Hardisty, Alberta to Steele City, Nebraska to expand capacity of the Keystone Pipeline System.100 %
1Management is currently reviewing the viability of these projects following the January 20, 2021 revocation of the Presidential Permit for the Keystone XL pipeline.
2The advancement of the Keystone XL project has been suspended as we assess the implications and options available to us following the January 20, 2021 revocation of the Presidential Permit and an asset impairment is expected to be recorded in first quarter 2021. Refer to the Liquids Pipelines - Significant events section for further information.
TC Energy Management's discussion and analysis 2020 | 53


UNDERSTANDING OUR LIQUIDS PIPELINES BUSINESS
Our Liquids Pipelines segment consists of crude oil and liquids/petroleum products pipelines, complemented by a liquids marketing business. We efficiently transport crude oil from major supply sources to markets where crude oil can be refined into various petroleum products, transport diluent and diesel products within Alberta, and offer ancillary services such as short- and long-term storage of liquids at key terminal locations to optimize the value of our pipeline assets.
We provide pipeline transportation capacity to shippers predominantly supported by long-term contracts with fixed monthly payments that are not linked to actual throughput volumes or to the price of the commodity, generating stable earnings over the contract term. The terms of service and fixed monthly payments are determined by contracts negotiated with shippers which provide for the recovery of costs we incur to construct, operate and maintain the system. Uncontracted pipeline capacity is offered to the market to secure additional volumes on a monthly spot basis which provides opportunities to generate incremental earnings. Term storage of liquids at terminals is offered to our customers in return for fixed fee payments which are not linked to actual storage volumes or to the price of the commodity.
The Keystone Pipeline System, our largest liquids pipeline asset, transports approximately 20 per cent of western Canadian crude oil exports to key refining markets in the U.S. Midwest and the U.S. Gulf Coast. It also provides significant capacity between Cushing, Oklahoma and the U.S. Gulf Coast market, primarily transporting U.S. crude oil. Three intra-Alberta liquids pipelines – Grand Rapids, Northern Courier and White Spruce – provide crude oil, diluent and diesel transportation for producers in northern Alberta.
Our liquids marketing business provides customers with a variety of crude oil marketing services including transportation, storage and crude oil management, largely through the purchase and sale of physical crude oil. This business contracts for capacity on our pipelines as well as third-party owned pipelines and tank terminals.
Business environment
Global crude oil and liquids demand was significantly impacted by the COVID-19 pandemic as containment measures imposed by most countries around the world temporarily reduced transportation, commercial and non-essential activities. Demand is expected to gradually recover to pre-COVID-19 levels by 2022.
Global crude oil and liquids demand is projected to increase after this near-term recovery from 92 million Bbl/d in 2020 to 113 million Bbl/d in 2035, driven generally by the transportation and industrial sectors which account for 79 per cent of total crude oil and liquids demand. In addition to meeting this anticipated demand growth of approximately 21 million Bbl/d, a significant amount of crude oil production capacity is required to offset global conventional decline rates expected to reach approximately 16 million Bbl/d annually by 2035. To meet this demand requirement, a strong crude oil price environment is needed to support continuing investment in the energy sector. Global supply of crude oil necessary to meet this demand is expected to be sourced from countries with significant crude oil reserves, mainly in North America and the Middle East.
Crude oil prices were severely impacted in 2020 by the COVID-19 pandemic and competition for market share by OPEC+ producers. However, a recovery will be supported by crude oil supply management efforts, primarily by OPEC+, and global demand growth that provides sufficient support for ongoing investments in new supply sources.
Supply outlook
Canada
Canada has the world’s third largest crude oil reserves with approximately 162 billion barrels of economically and technically recoverable conventional and oil sands reserves, primarily in Alberta. Total 2020 WCSB crude oil production was approximately 4 million Bbl/d and is expected to increase to approximately 5 million Bbl/d by 2035, subject to the resolution of current ex-Alberta pipeline capacity constraints. Oil sands production comprises the majority of western Canadian crude oil supply at approximately 3 million Bbl/d and is a favourable supply source given its decades-long reserve life, steady production and rapidly improving cost and environmental performance.
54 | TC Energy Management's discussion and analysis 2020


U.S.
The U.S. is one of the largest crude oil producing countries in the world at approximately 11 million Bbl/d in 2020. The majority of continental U.S. crude oil production is in the form of light tight oil from the Williston, Eagle Ford, Niobrara and Permian basins. In recent years, the Permian basin has become the most dominant producing region accounting for approximately 30 per cent of total U.S. crude oil production and is expected to grow to 6 million Bbl/d by 2035.
With light oil processing capacity fully utilized in the U.S., exports to offshore markets are the only outlets for incremental light tight oil production. Despite the global demand impact from the COVID-19 pandemic, U.S. crude oil exports increased to a record 3.1 million Bbl/d in 2020 compared to 3.0 million Bbl/d in 2019. By 2035, the U.S. is expected to export approximately 5 million Bbl/d of predominantly light crude oil and import approximately 5 million Bbl/d of heavy crude oil.
Demand outlook
Canada’s proximity to the U.S., which is the world’s largest consumer of crude oil at over 19 million Bbl/d, and Canada’s significant heavy crude oil production are of strategic importance to the U.S. refining industry. Many refiners in the U.S. Midwest and U.S. Gulf Coast process a wide variety of crude oil, including significant amounts of heavy crude oil. This flexibility, access to an abundance of low-cost natural gas, proximity to light and heavy crude oil supply, economies of scale and ready access to markets have positioned these refineries to be among the most profitable in the world.
The U.S. Midwest and U.S. Gulf Coast refining markets have a strong reliance on heavy crude oil imports, with total imports of approximately 4 million Bbl/d in 2020, and a five-year average of approximately 5 million Bbl/d. The U.S. Midwest refiners have total refining capacity of approximately 4 million Bbl/d, which requires approximately 2 million Bbl/d of heavy crude oil. The U.S. Gulf Coast is the largest regional refining centre in the world with a total capacity of 10 million Bbl/d, representing more than half of the total U.S. refining capacity. The U.S. Gulf Coast imported approximately 2 million Bbl/d of primarily heavy crude oil in 2020 to meet demand.
Canada is currently the largest exporter of crude oil to the U.S. at approximately 4 million Bbl/d. Demand for heavy crude oil in the U.S. has been resilient and is expected to remain strong for the foreseeable future. While Canada, Venezuela and Mexico are the top suppliers of heavy crude oil to the U.S., the latter two countries are experiencing declining production. U.S. sanctions, along with the market impacts of the COVID-19 pandemic, have reduced demand for Venezuela’s heavy crude oil production. Mexico expects the export of Maya, its flagship heavy crude oil, to fall by almost 70 per cent between 2021 and 2023 due to the continued declines in its production and new domestic demand. Approximately 40 per cent of the U.S. Gulf Coast heavy crude oil demand is currently met by Mexican imports which presents a significant opportunity for Canada to become a more prominent supplier of crude oil to the U.S.
Strategic priorities
Our strategic focus is to provide transportation solutions which link growing North American supply basins to key market hubs and demand regions. Our intra-Alberta liquids pipelines and Keystone Pipeline System will form a contiguous path from Alberta through the U.S. Midwest to the U.S. Gulf Coast, which strategically positions TC Energy to provide competitive transportation solutions for growing supplies of Alberta heavy crude oil and U.S. light tight oil.
COVID-19 has had a material impact on energy markets which will disrupt and likely delay certain growth plans. The long-term contract profile supporting our business model provides stability for our existing businesses, but growth will likely be challenged until energy markets normalize.
Within our established risk preferences we remain committed to:
protecting and optimizing the value of our existing assets
expanding and leveraging our existing infrastructure
expanding the transportation services that we offer and extending into adjacent geographies
extending into emerging growth opportunities.
We continuously work with existing and new customers to provide pipeline transportation and terminal services. The combination of the scale and location of our assets assists us in attracting new volumes and in growing our business.
TC Energy Management's discussion and analysis 2020 | 55


Within Alberta, we continue to position ourselves to capture WCSB production growth. Declining Latin American crude oil production has increased the demand for WCSB heavy crude oil in the U.S. Gulf Coast, which has historically relied on offshore imports. Resolution of WCSB egress issues is expected to drive substantial production growth requiring additional transportation solutions. With additional commercial support, the Heartland Pipeline, TC Terminals and Hardisty terminal projects, all of which have received regulatory approval, would allow shippers to seamlessly connect from the Fort McMurray production region directly to market. This would provide shippers with a contiguous path between the WCSB and destination markets, including the U.S. Gulf Coast. After suspending advancement of Keystone XL, we continue to assess the implications and options available to us with respect to these three projects.
With the fast-paced growth of U.S. light tight oil production and fully satisfied demand for light oil in North America, we will examine opportunities to expand our transportation services and extend our pipeline platform to include terminals with storage and marine export capabilities. Terminal connections and storage facilities encourage flows into and out of our pipeline systems, which we expect will help to secure long-term contracts and incremental spot volumes. We will also focus on leveraging our existing assets and development of projects to reach emerging growth regions such as the Williston and Denver-Julesburg basins.
We believe our liquids pipelines business is well positioned to endure the impact of short-term commodity price fluctuations and supply/demand responses. Our existing operations and development projects are supported by long-term contracts where we provide pipeline capacity to our customers in exchange for fixed monthly payments which are not affected by commodity prices or throughput. The cyclical nature of commodity prices may influence the pace at which our shippers expand their operations. This can impact the rate of project growth in our industry, the value of our services as contracts expire, and the timing for the demand of transportation services and/or new liquids infrastructure.
We closely monitor the market place for strategic asset acquisitions to enhance our system connectivity or expand our footprint within North America. We remain disciplined in our approach and will position our business development activities strategically to capture opportunities within our risk preferences.
SIGNIFICANT EVENTS
Keystone XL
Permit revocation and impairment
On January 20, 2021, U.S. President Biden revoked the existing Presidential Permit for the Keystone XL pipeline. As a result, we suspended the advancement of the Keystone XL pipeline project and ceased capitalizing costs, including interest during construction, and also ceased accruing a return on the Government of Alberta interests as of that date, while we assess our options along with our partner, the Government of Alberta, and other stakeholders. We expect to record a substantive, predominantly non-cash, after-tax charge to our earnings in first quarter 2021, which will be excluded from comparable earnings.
Accounting implications in first quarter 2021 and beyond will depend on the assessment and consideration of options as noted above, including the impacts that this had on contractual arrangements. As a result, the magnitude of the impairment charge and related recoveries cannot be quantified at this time. The determination of the amount of the pre-tax impairment of the Keystone XL assets will consider the then-carrying value of the project and any associated projects, outstanding contractual commitments, the estimated net recoverable value of tangible plant and equipment and specified contractual recoveries, which cannot be reasonably estimated until the options have been assessed and next steps have been determined. The carrying value of the plant, property and equipment for Keystone XL, including capitalized interest, was $2.8 billion at December 31, 2020. The viability of certain projects currently associated with the Keystone XL pipeline is also being reviewed for which the carrying value was $0.2 billion at December 31, 2020. Refer to the notes to our 2020 Consolidated financial statements for additional information.
Construction commencement
Prior to U.S. President Biden revoking the Presidential Permit, on March 31, 2020, we announced that we would proceed with construction of the Keystone XL pipeline project which commenced in April. We advanced construction of 180 km (112 miles) of pipeline and five pump stations in Canada, 12 pump stations in the United States, and completed the U.S./Canada border crossing in June 2020.
56 | TC Energy Management's discussion and analysis 2020


On August 5, 2020, we announced that Keystone XL had committed to construct the project using all union labor in the U.S. along with committing in excess of $10 million to create a Green Jobs Training Fund to help train union workers on renewable energy projects.
On January 17, 2021, we announced that the Keystone XL project would achieve net-zero emissions by the time it was placed into service in 2023. Additionally, we committed to ensure enough new renewable electricity was constructed along the pipeline route by 2030 to fully power the pipeline’s operational needs.
Financial matters
As part of the Keystone XL funding plan, the Government of Alberta has invested approximately US$0.8 billion in equity as of December 31, 2020, which substantially funded construction costs through the end of 2020. On January 4, 2021, we executed a US$4.1 billion project-level credit facility that is fully guaranteed by the Government of Alberta and non-recourse to us, and made initial cash draws on January 8, 2021, in part to repurchase a majority of the Government of Alberta’s equity interest under the terms of the contract. The suspension of the advancement of the project does not require immediate repayment of the debt as repayment is dependent upon certain other events or decisions specified in the credit facility agreement.
On November 6, 2020, we signed an agreement with Natural Law Energy, which included a potential investment by five First Nations in Alberta and Saskatchewan, of up to $1.0 billion in Keystone XL and future liquids projects.
Legal and permitting matters
Keystone XL continues to face legal and permitting challenges. After suspending advancement of the project on January 20, 2021, we are assessing our next steps with respect to these matters.
FINANCIAL RESULTS
The following is a reconciliation of comparable EBITDA and comparable EBIT (our non-GAAP measures) to segmented earnings (the most directly comparable GAAP measure). Refer to page 11 for more information on non-GAAP measures we use.
year ended December 31
(millions of $)202020192018
Keystone Pipeline System1,474 1,654 1,443 
Intra-Alberta pipelines1
92 137 160 
Liquids marketing and other134 401 246 
Comparable EBITDA1,700 2,192 1,849 
Depreciation and amortization(332)(341)(341)
Comparable EBIT1,368 1,851 1,508 
Specific items:
  Gain on partial sale of Northern Courier 69 — 
  Risk management activities(9)(72)71 
Segmented earnings1,359 1,848 1,579 
Comparable EBIT denominated as follows:  
Canadian dollars345 356 370 
U.S. dollars762 1,127 876 
Foreign exchange impact261 368 262 
Comparable EBIT1,368 1,851 1,508 
1Intra-Alberta pipelines include Grand Rapids, White Spruce and Northern Courier. In July 2019, we sold an 85 per cent interest in Northern Courier and began to apply equity accounting to our remaining 15 per cent investment.
TC Energy Management's discussion and analysis 2020 | 57


Liquids Pipelines segmented earnings decreased by $489 million in 2020 compared to 2019 and increased by $269 million in 2019 compared to 2018 and included the following specified items which have been excluded from our calculation of comparable EBIT and comparable earnings:
a pre-tax gain in 2019 of $69 million related to the sale of an 85 per cent interest in Northern Courier
unrealized gains and losses from changes in the fair value of derivatives related to our liquids marketing business.
A stronger U.S. dollar in 2020 had a positive impact on the Canadian dollar equivalent segmented earnings from our U.S. operations compared to the same period in 2019, with a similar impact on 2019 compared to 2018.
Comparable EBITDA for Liquids Pipelines was $492 million lower in 2020 compared to 2019 primarily due to:
lower volumes on the Keystone Pipeline System and lower contribution from liquids marketing activities driven by a global reduction in crude oil demand and prices due to the significant impact of the COVID-19 pandemic in 2020 and disruption to energy markets
decreased earnings as a result of the sale of an 85 per cent equity interest in Northern Courier in July 2019.
Comparable EBITDA for Liquids Pipelines was $343 million higher in 2019 compared to 2018 primarily due to the net effect of:
increased volumes on the Keystone Pipeline System
greater contribution from liquids marketing activities due to improved margins and volumes
incremental contribution from the White Spruce pipeline, which was placed in service in May 2019
decreased earnings as a result of the sale of an 85 per cent equity interest in Northern Courier in July 2019.
Depreciation and amortization
Depreciation and amortization was $9 million lower in 2020 compared to 2019 reflecting the sale of an 85 per cent equity interest in Northern Courier, partially offset by a stronger U.S. dollar. Depreciation and amortization was $341 million for both 2019 and 2018 reflecting the net result of new facilities being placed in service and a stronger U.S. dollar, partially offset by the sale of an 85 per cent equity interest in Northern Courier.
OUTLOOK
Comparable earnings
Our 2021 earnings are expected to be lower than 2020 in both the Keystone Pipeline System and liquids marketing business as a result of continuing lower uncontracted volumes and decreased margins, respectively. As discussed in the Understanding our Liquids Pipelines business section, global crude oil demand and prices have been significantly impacted by the COVID-19 pandemic but are expected to gradually recover to pre-COVID-19 levels by 2022.
Capital spending
We spent a total of $1.4 billion in 2020 primarily on the advancement of Keystone XL and expect to spend approximately $0.1 billion in 2021 on our liquids pipelines which excludes any impacts from the assessment of our options with respect to the Keystone XL project.
BUSINESS RISKS
The following are risks specific to our liquids pipelines business. Refer to page 88 for information about general risks related to TC Energy as a whole, including other operational, safety and financial risks as well as our approach to risk management.
Construction and operations
Constructing and operating our liquids pipelines to ensure transportation services are provided safely and reliably as well as optimizing and maintaining their availability are essential to the success of our business. Interruptions in our pipeline operations may impact our throughput capacity and result in reduced fixed payment revenues and spot volume opportunities. We manage these risks and any possible impact to the local communities and environment by investing in a highly skilled workforce and operating prudently using risk-based preventive maintenance programs and making effective capital investments. We use internal inspection equipment to check our pipelines regularly and repair them whenever necessary.
While the majority of the costs to operate the liquids pipelines are passed through to our shippers, a portion of our volume is transported under an all-in fixed toll structure where we are exposed to changing costs which may adversely impact our earnings.
58 | TC Energy Management's discussion and analysis 2020


Regulatory and government
Decisions by Canadian and U.S. regulators can have a significant impact on the approval, construction, operation, commercial and financial performance of our liquids pipelines. Shifts in government policy by existing bodies or following changes in government can impact our ability to grow our business. Public opinion about crude oil development and production, particularly in light of climate change concerns, may also have an adverse impact on the regulatory process. In conjunction with this, there are individuals and special interest groups that are expressing opposition to crude oil production by lobbying against the construction of liquids pipelines. Changing environmental requirements or revisions to the current regulatory process may adversely impact the timing or ability to obtain approvals for our liquids pipelines. We manage these risks by continuously monitoring regulatory and government developments and decisions to determine their possible impact on our liquids pipelines business, by building scenario analysis into our strategic outlook and by working closely with our stakeholders in the development and operation of our assets.
Crude oil supply and demand for pipeline capacity
A decrease in demand for refined crude oil products could adversely impact the price that crude oil producers receive for their product. Long-term lower crude oil prices could mean producers may curtail their investment in the further development of crude oil supplies. Depending on the severity, these factors would negatively impact opportunities to expand our liquids pipelines infrastructure and, in the longer term, to re-contract with shippers as current agreements expire.
Competition
As we continue to further develop our competitive position in the North American liquids transportation market to connect growing crude oil and diluent supplies between key North American producing regions and refining and export markets, we face competition from other midstream companies which also seek to transport these crude oil and diluent supplies to the same markets. Our success is dependent on our ability to offer and contract transportation services on terms that are market competitive.
Liquids marketing
Our liquids marketing business provides customers with a variety of crude oil marketing services including transportation, storage, and crude oil management, primarily through the purchase and sale of physical crude oil. Changing market conditions could adversely impact the value of the underlying capacity contracts and margins realized. Availability of alternative pipeline systems that can deliver into the same areas can also impact contract value. The liquids marketing business complies with our risk management policies which are described in the Other information - Enterprise risk management section.
TC Energy Management's discussion and analysis 2020 | 59


Power and Storage
Our power business includes approximately 4,200 MW of generation capacity located in Alberta, Ontario, Québec and New Brunswick and uses natural gas and nuclear fuel sources. These assets are supported by long-term contracts.
We own and operate approximately 118 Bcf of non-regulated natural gas storage capacity in Alberta.
Strategy
maximize the value of our portfolio of Power and Storage assets by managing them safely and reliably with a focus on optimization
pursue North American growth in low-risk, highly contracted power infrastructure
explore opportunities to provide renewable energy to serve our existing energy loads.
Recent highlights
advanced the life extension program at Bruce Power with the commencement of the Unit 6 MCR outage on January 17, 2020. On October 1, 2020, the Unit 6 MCR project achieved a major milestone with the completion of the preparation phase and the commencement of the Fuel Channel and Feeder Replacement Program
concluded construction and commissioning activities and placed the Napanee natural gas-fired power plant in service on
March 13, 2020
completed the sale of our Ontario natural gas-fired power plants: Halton Hills, Napanee as well as our 50 per cent interest in Portlands Energy Centre on April 29, 2020
completed the purchase of the remaining 50 per cent interest in TransCanada Turbines Ltd. (TC Turbines) for US$67 million on November 13, 2020.
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Power and Storage assets currently have a combined power generation capacity, net to TC Energy, of 4,197 MW and we operate each facility except for Bruce Power.
 Generating
Capacity (MW)
Type of fuelDescriptionOwnership   
Bruce Power1
3,109nuclearEight operating reactors in Tiverton, Ontario. Bruce Power leases the nuclear facilities from OPG.48.4 %
Bécancour550 natural gasCogeneration plant in Trois-Rivières, Québec. Power generation has been suspended since 2008 although we continue to receive PPA capacity payments while generation is suspended.100 %
Mackay River207 natural gasCogeneration plant in Fort McMurray, Alberta100 %
Bear Creek100 natural gasCogeneration plant in Grande Prairie, Alberta.100 %
Carseland95 natural gasCogeneration plant in Carseland, Alberta.100 %
Grandview90 natural gasCogeneration plant in Saint John, New Brunswick. 100 %
Redwater46 natural gasCogeneration plant in Redwater, Alberta.100 %
Canadian non-regulated natural gas storage 118 Bcf of natural gas storage capacity
Crossfield68 Bcf Underground facility connected to the NGTL System near Crossfield, Alberta.100 %
Edson50 Bcf Underground facility connected to the NGTL System near Edson, Alberta.100 %
1Our 48.4 per cent share of power generation capacity.
62 | TC Energy Management's discussion and analysis 2020


UNDERSTANDING OUR POWER AND STORAGE BUSINESS
Our Power and Storage business is made up of two groups:
Power
Natural Gas Storage (Canadian, non-regulated).
Power
Canadian Power
We own approximately 1,100 MW of power supply in Canada, excluding our investment in Bruce Power. On April 29, 2020, we completed the sale of our Ontario natural gas-fired power plants. Results from these facilities were included in comparable EBITDA until their sale.
We own four natural gas-fired cogeneration facilities in Alberta and exercise a disciplined operating strategy to maximize revenues at these facilities. Our marketing group sells uncommitted power while also buying and selling power and natural gas to maximize earnings. To reduce commodity price exposure associated with uncontracted power, we sell a portion of this output in forward sales markets when acceptable contract terms are available while the remainder is retained to be sold in the spot market or under short-term forward arrangements. The objective of this strategy is to maintain adequate power supply to fulfill our sales obligations if we have unexpected plant outages and also enables us to capture opportunities to increase earnings in periods of high spot prices.
Our two eastern Canadian natural gas-fired cogeneration assets are supported by long-term contracts.
Bruce Power
Bruce Power is a nuclear power generation facility located near Tiverton, Ontario and is comprised of eight nuclear units with a combined capacity of approximately 6,430 MW. Bruce Power leases the facilities from OPG, has no spent fuel risk and will return the facilities to OPG for decommissioning at the end of the lease. We hold a 48.4 per cent ownership interest in Bruce Power.
Results from Bruce Power will fluctuate primarily due to units being offline for the MCR program and the frequency, scope and duration of planned and unplanned maintenance outages. Bruce Power also markets and trades power in Ontario and neighbouring jurisdictions under strict risk controls.
Through a long-term agreement with the IESO, Bruce Power has begun to progress a series of incremental life extension investments to extend the operating life of the facility to 2064. This agreement represents an extension and material amendment to the earlier agreement that led to the refurbishment of Units 1 and 2 at the site. Under the amended agreement, which took economic effect in January 2016, Bruce Power began investing in life extension activities for Units 3 through 8 to support the long-term refurbishment programs. Investment in the Asset Management program is designed to result in near-term life extensions of each of the six units up to the planned major refurbishment outages and beyond. The Asset Management program includes the one-time refurbishment or replacement of systems, structures or components that are not within the scope of the MCR program which focuses on the actual replacement of the key, life-limiting reactor components. The MCR program is designed to add 30 to 35 years of operational life to each of the six units.
The Unit 6 MCR outage commenced on January 17, 2020 and has an expected completion in late 2023. Investments in the remaining five-unit MCR program are expected to continue through 2033. Future MCR investments will be subject to discrete decisions for each unit with specified off-ramps available for Bruce Power and the IESO.
As part of the life extension and refurbishment agreement, Bruce Power receives a uniform contract price for all units which includes certain flow-through items such as fuel and lease expense recovery. The contract also provides for payment if the IESO requests a reduction in Bruce Power’s generation to balance the supply of, and demand for, electricity and/or manage other operating conditions of the Ontario power grid. The amount of the reduction is considered deemed generation, for which Bruce Power is paid the contract price.
The contract price is subject to adjustments for the return of and on capital invested at Bruce Power under the Asset Management and MCR programs, along with various other pricing adjustments that allow for a better matching of revenues and costs over the long term. As part of the amended agreement, Bruce Power is also required to share operating cost efficiencies with the IESO for better than planned performance. These efficiencies are reviewed every three years and paid out on a monthly basis over the subsequent three-year period. Approximately $200 million will be paid to the IESO in 2019 to 2021 in respect to the operating and cost efficiencies realized in the 2016 to 2018 period, with our share being approximately $100 million.
TC Energy Management's discussion and analysis 2020 | 63


Bruce Power is a global-supplier of Cobalt-60, a medical isotope used in the sterilization of medical equipment and to treat certain types of cancer. Cobalt-60 is produced during Bruce Power’s generation of electricity and is harvested during certain planned maintenance outages and provided for medical use. In 2020, Bruce Power supplied enough Cobalt-60 to sterilize between 20-25 billion pieces of medical equipment and supplies including gloves, COVID-19 swabs, single use medical equipment and materials used in vaccine production. Cobalt-60 is also used in the treatment of brain tumours and breast cancer. In addition, Bruce Power continues to advance a project to expand isotope production from its reactors with a focus on Lutetium-177 – another medical isotope used in the treatment of prostate cancer and neuroendocrine tumors. This project is being undertaken with a Canadian-based nuclear medicine partnership and the Saugeen Ojibway Nation, on whose traditional territory the Bruce Power facilities are located.
Canadian Natural Gas Storage
We own and operate 118 Bcf of non-regulated natural gas storage capacity in Alberta. This business operates independently from our regulated natural gas transmission and U.S. storage businesses.
Our Canadian natural gas storage business helps balance seasonal and short-term supply and demand while also adding flexibility to the delivery of natural gas to markets in Alberta and the rest of North America. Market volatility creates arbitrage opportunities and our natural gas storage facilities also give us and our customers the ability to capture value from short-term price movements. The natural gas storage business is affected by changes in seasonal natural gas price spreads which are generally determined by the differential in natural gas prices between the traditional summer injection and winter withdrawal seasons. In addition, the business may be affected by pipeline restrictions in Alberta which limit the ability to capture price differentials.
Our natural gas storage business contracts with third parties, typically participants in the Alberta and interconnected gas markets, for a fixed fee to provide natural gas storage services on a short, medium, and/or long-term basis.
We also enter into proprietary natural gas storage transactions which include a forward purchase of our own natural gas to be injected into storage and a simultaneous forward sale of natural gas for withdrawal at a later period, typically during the winter withdrawal season. By matching purchase and sales volumes on a back-to-back basis, we lock in future positive margins, effectively eliminating our exposure to changes in natural gas prices.
SIGNIFICANT EVENTS
Ontario natural gas-fired power plants
On March 13, 2020, we placed the Napanee power plant into service after we completed construction and commissioning activities.
On April 29, 2020, we completed the sale of our Halton Hills and Napanee power plants as well as our 50 per cent interest in Portlands Energy Centre to a subsidiary of Ontario Power Generation Inc. for net proceeds of approximately $2.8 billion before post-closing adjustments. Pre-tax losses of $414 million ($283 million after tax) were recognized in 2020 and reflect the finalization of post-closing obligations. The total pre-tax loss of $693 million ($477 million after tax) on this transaction includes losses accrued during 2019 while classified as an asset held for sale as well as utilization of previously unrecognized tax loss benefits. This loss may be amended in the future upon the settlement of existing insurance claims.
Bruce Power – Life Extension
The Unit 6 MCR outage commenced on January 17, 2020 and is expected to be completed in late 2023. In late March 2020, as a result of COVID-19 impacts, Bruce Power declared force majeure under its contract with the IESO. This force majeure notice covers the Unit 6 MCR and certain Asset Management work. On May 11, 2020, work on the Unit 6 MCR and Asset Management programs was restarted with additional prevention measures in place for worker safety related to COVID-19 and progress is continuing on critical path activities. The impact of the force majeure will ultimately depend on the extent and duration of disruptions resulting from the pandemic and Bruce Power's ability to implement mitigation measures.
On October 1, 2020, the Unit 6 MCR project achieved a major milestone with the completion of the preparation phase and commencement of the Fuel Channel and Feeder Replacement Program and as of December 31, 2020 the Unit 6 MCR project remains on schedule and on budget. Operations on the remaining units continue as normal with scheduled outages successfully completed on Units 3, 4 and 5 in second quarter 2020 and on Unit 8 in fourth quarter 2020.
64 | TC Energy Management's discussion and analysis 2020


TC Turbines
On November 13, 2020, we acquired the remaining 50 per cent ownership interest in TC Turbines for cash consideration of US$67 million. TC Turbines provides industrial gas turbine maintenance, parts, repair and overhaul services. Following the acquisition, we began to fully consolidate TC Turbines within our financial results.
FINANCIAL RESULTS
The following is a reconciliation of comparable EBITDA and comparable EBIT (our non-GAAP measures) to segmented earnings (the most directly comparable GAAP measure). Refer to page 11 for more information on non-GAAP measures we use.
year ended December 31
(millions of $)202020192018
Bruce Power1
439 527 311 
Canadian Power2
213 285 428 
Natural Gas Storage and other25 20 13 
Comparable EBITDA677 832 752 
Depreciation and amortization(67)(95)(119)
Comparable EBIT610 737 633 
Specific items:
Loss on sale of Ontario natural gas-fired power plants(414)(279)— 
Gain on sale of Coolidge generating station 68 — 
U.S. Northeast power marketing contracts (8)(5)
Gain on sale of Cartier Wind power facilities — 170 
Risk management activities(15)(63)(19)
Segmented earnings181 455 779 
1Includes our share of equity income from Bruce Power.
2Includes our Ontario natural gas-fired power plants until sold on April 29, 2020, Coolidge generating station until sold in May 2019 and Cartier Wind power facilities until sold in October 2018.
Power and Storage segmented earnings decreased by $274 million in 2020 compared to 2019 and decreased by $324 million in 2019 compared to 2018 and included the following specific items which have been excluded from our calculation of comparable EBIT and comparable earnings:
a pre-tax loss in 2020 of $414 million (2019 – $279 million) related to the sale of our Ontario natural gas-fired power plants. Refer to the Power and Storage - Significant events section for additional information
a pre-tax gain of $68 million related to the sale of the Coolidge generating station in May 2019
a pre-tax loss in 2019 of $8 million related to our remaining U.S. Northeast power marketing contracts which were sold in May 2019 (2018 – $5 million, including a gain in first quarter 2018 on the sale of our retail contracts)
a pre-tax gain in 2018 of $170 million related to the sale of our interests in the Cartier Wind power facilities
unrealized losses from changes in the fair value of derivatives used to reduce our exposure to certain commodity price risks.
TC Energy Management's discussion and analysis 2020 | 65


Comparable EBITDA for Power and Storage decreased by $155 million in 2020 compared to 2019 primarily due to the net effect of:
the planned removal from service of Bruce Power Unit 6 on January 17, 2020 for its MCR program, partially offset by fewer planned and unplanned outage days on the remaining units as well as the effects of a higher realized power price. Additional financial and operating information on Bruce Power is provided below
lower Canadian Power earnings largely as a result of the sale of our Ontario natural gas-fired power plants on April 29, 2020, although the Napanee plant added incremental earnings to that date following its March 13, 2020 in-service. In addition, we sold our Coolidge generating station in May 2019.
Comparable EBITDA for Power and Storage increased by $80 million in 2019 compared to 2018 primarily due to the net effect of:
increased Bruce Power results mainly due to a higher realized power price in 2019 and lower income on funds invested for future retirement benefits in 2018, partially offset by lower volumes from greater outage days. Additional financial and operating information on Bruce Power is provided below
lower Canadian Power contribution largely as a result of the sale of our interests in the Cartier Wind power facilities in October 2018 and the sale of our Coolidge generating station in May 2019. We also experienced lower results from our Alberta cogeneration plants due to greater outage days and a prior period billing adjustment at one of the plants.
Depreciation and amortization
Depreciation and amortization decreased by $28 million in 2020 compared to 2019 primarily due to the cessation of depreciation on our Halton Hills power plant in July 2019. Depreciation was $24 million lower in 2019 compared to 2018 primarily due to the cessation of depreciation on the Cartier Wind power facilities in June 2018, the Coolidge generating station in December 2018 and the Halton Hills power plant in July 2019 upon their classifications as held for sale. These decreases were partially offset by increased depreciation at our Alberta cogeneration plants due to a reassessment of the useful life of certain components.
Bruce Power results
Bruce Power results reflect our proportionate share. Comparable EBITDA and comparable EBIT are non-GAAP measures. Refer to page 11 for more information on non-GAAP measures we use. The following is our proportionate share of the components of comparable EBITDA and comparable EBIT.
year ended December 31
(millions of $, unless otherwise noted)202020192018
Equity income included in comparable EBITDA and EBIT comprised of:
Revenues1
1,681 1,746 1,526 
Operating expenses(884)(883)(852)
Depreciation and other(358)(336)(363)
Comparable EBITDA and EBIT2
439 527 311 
Bruce Power – other information   
Plant availability3,4
88 %84 %87 %
Planned outage days4
276 393 280 
Unplanned outage days36 58 92 
Sales volumes (GWh)2
20,956 22,669 23,486 
Realized power price per MWh5
$80 $76 $67 
1Net of amounts recorded to reflect operating cost efficiencies shared with the IESO.
2Represents our 48.4 per cent (2019 – 48.4 per cent; 2018 – 48.3 per cent) ownership interest in Bruce Power. Sales volumes include deemed generation and Unit 6 output until January 17, 2020 when its MCR program commenced.
3The percentage of time the plant was available to generate power, regardless of whether it was running.
4Excludes Unit 6 MCR outage days.
5Calculation based on actual and deemed generation. Realized power price per MWh includes realized gains and losses from contracting activities and cost flow-through items. Excludes unrealized gains and losses on contracting activities and non-electricity revenues.
66 | TC Energy Management's discussion and analysis 2020


The Unit 6 MCR outage commenced on January 17, 2020. Excluding the Unit 6 MCR, plant availability in 2020 was 88 per cent as planned maintenance was completed on Bruce Units 3, 4, 5 and 8. Plant availability in 2019 was 84 per cent as planned maintenance was completed on Bruce Units 2, 3, 5 and 7. Plant availability in 2018 was 87 per cent as planned maintenance was completed on Bruce Units 1, 4 and 8.
OUTLOOK
Comparable earnings
Our 2021 comparable earnings for the Power and Storage segment are expected to be lower than 2020 primarily as a result of a lower contribution from Bruce Power as described below and the sale of our Ontario natural gas-fired power plants on April 29, 2020.
Bruce Power equity income in 2021 is expected to be lower largely as a result of increased non-MCR planned outage days and higher operating costs in 2021. Planned maintenance is expected to occur on Unit 1 in the first half of 2021, on Unit 7 in the second half of 2021 while a Unit 3 outage is expected to begin late first quarter 2021 and be completed early fourth quarter 2021. The average 2021 plant availability percentage, excluding Unit 6, is expected to be in the mid-80 per cent range.
Capital spending
We invested $0.7 billion in 2020 for our share of Bruce Power's life extension and maintenance capital projects and expect to invest approximately $0.8 billion in 2021.
BUSINESS RISKS
The following are risks specific to our Power and Storage business. Refer to page 88 for information about general risks related to TC Energy as a whole, including other operational, safety and financial risks. The Power and Storage marketing business complies with our risk management policies which are described in the Other information - Enterprise risk management section.
Fluctuating power and natural gas market prices
Much of the physical power generation and fuel used in our Alberta power operations is currently exposed to commodity price volatility. These exposures are partially mitigated through long-term contracts and hedging activities including selling and purchasing power and natural gas in forward markets. As contracts expire, new contracts are entered into at prevailing market prices.
Our two eastern Canadian natural gas-fired assets are fully contracted and not materially impacted by fluctuating spot power and natural gas prices. The contracts on these assets expire in the medium to long term and, as such, it is uncertain if we will be able to re-contract on similar terms and may face future commodity exposure.
Our natural gas storage business is subject to fluctuating seasonal natural gas price spreads which are generally determined by the differential in natural gas prices between the traditional summer injection and winter withdrawal seasons. In addition, the business may be affected by pipeline restrictions in Alberta which limit the ability to capture price differentials.
Plant availability
Operating our plants to ensure services are provided safely and reliably as well as optimizing and maintaining their availability are essential to the continued success of our Power and Storage business. Unexpected outages or extended planned outages at our power plants can increase maintenance costs, lower plant output and sales revenues, and lower capacity payments and margins. We may also have to buy power or natural gas on the spot market to meet our delivery obligations. We manage this risk by investing in a highly skilled workforce, operating prudently, running comprehensive risk-based preventive maintenance programs and making effective capital investments.
TC Energy Management's discussion and analysis 2020 | 67


Regulatory
We operate in both regulated and deregulated power markets in Canada. These markets are subject to various federal and provincial regulations. As power markets evolve, there is the potential for regulatory bodies to implement new rules that could negatively affect us as a generator and marketer of electricity. These may be in the form of market rule or market design changes, changes in the interpretation and application of market rules by regulators, price caps, emission controls, emissions costs, cost allocations to generators and out-of-market actions taken by others to build excess generation, all of which may negatively impact the value of our assets. In addition, our development projects rely on an orderly permitting process and any disruption to that process can have negative effects on project schedules and costs. We are an active participant in formal and informal regulatory proceedings and take legal action where required.
Compliance
Market rules, regulations and operating standards apply to our power business based on the jurisdictions in which they operate. Our trading and marketing activities may be subject to fair competition and market conduct requirements as well as specific rules that apply to physical and financial transactions in deregulated markets. Similarly, our generators may be subject to specific operating and technical standards relating to maintenance activities, generator availability and delivery of power and power-related products. While significant efforts are made to ensure we comply with all applicable statutory requirements, situations including unforeseen operational challenges, lack of rule clarity, and the ambiguous and unpredictable application of requirements by regulators and market monitors occasionally arise and create compliance risk. Deemed contravention of these requirements may result in mandatory mitigation activities, monetary penalties, imposition of operational limitations, or even prosecution.
Weather
Significant changes in temperature and weather, including the potential impacts of climate change, have many effects on our business, ranging from the impact on demand, availability and commodity prices, to efficiency and output capability. Extreme temperature and weather can affect market demand for power and natural gas and can lead to significant price volatility. Extreme weather can also restrict the availability of natural gas and power if demand is higher than supply. Seasonal changes in temperature can reduce the efficiency and production of our natural gas-fired power plants.
Competition
We face various competitive forces that impact our existing assets and prospects for growth. For instance, our existing power plants will compete over time with new power capacity. New supply could come in several forms including supply that employs more efficient power generation technologies or additional supply from regional power transmission interconnections. We also face competition from other power companies in Alberta and Ontario as well as in the development of greenfield power plants.
68 | TC Energy Management's discussion and analysis 2020


Corporate
SIGNIFICANT EVENTS
Retirement and appointment of our President and CEO
On September 21, 2020, we announced the retirement of Russ Girling as President and CEO of TC Energy and from our Board of Directors effective December 31, 2020. François Poirier, previously Chief Operating Officer and President, Power & Storage, succeeded Mr. Girling as President and CEO and joined our Board of Directors on January 1, 2021. Mr. Girling will assist Mr. Poirier with the transition through February 28, 2021.
Acquisition of common units of TC PipeLines, LP
On December 15, 2020, we announced that we have entered into a definitive agreement and plan of merger to acquire all the outstanding common units of TC PipeLines, LP not beneficially owned by TC Energy or our affiliates in exchange for TC Energy common shares. Pursuant to the agreement, TC PipeLines, LP common unitholders will receive 0.70 common shares of TC Energy for each issued and outstanding publicly-held TC PipeLines, LP common unit. The exchange ratio reflects a value for all publicly-held common units of TC PipeLines, LP of approximately US$1.69 billion, or 38 million TC Energy common shares based on the closing price of TC Energy's common shares on the New York Stock Exchange on January 19, 2021. A vote on the plan of merger by the unitholders of the publicly-held common units is scheduled for February 26, 2021. The transaction is expected to close in late first quarter 2021 subject to approval by the holders of a majority of outstanding common units of TC PipeLines, LP and customary regulatory approvals. Upon closing, TC PipeLines, LP will be wholly owned by TC Energy and will cease to be a publicly-held MLP.
FINANCIAL RESULTS
The following is a reconciliation of comparable EBITDA and comparable EBIT (our non-GAAP measures) to Corporate segmented earnings /(losses) (the most directly comparable GAAP measure). Refer to page 11 for more information on non-GAAP measures we use.
year ended December 31
(millions of $)202020192018
Comparable EBITDA and EBIT(16)(17)(59)
Specific item:
Foreign exchange gains /(losses) – inter-affiliate loans1
86 (53)
Segmented earnings /(losses)70 (70)(54)
1Reported in Income from equity investments in the Consolidated statement of income.
Corporate segmented earnings increased by $140 million in 2020 compared to segmented losses of $70 million in 2019. Segmented losses increased by $16 million in 2019 compared to 2018.
Corporate segmented earnings /(losses) included foreign exchange gains and losses on our proportionate share of peso-denominated inter-affiliate loans to the Sur de Texas joint venture from its partners. These amounts are recorded in Income from equity investments and have been excluded from our calculation of comparable EBITDA and EBIT as they are fully offset by corresponding foreign exchange losses and gains on the inter-affiliate loan receivable included in Interest income and other.
Comparable EBITDA for Corporate was consistent in 2020 with 2019 and increased by $42 million in 2019 compared to 2018 primarily due to decreased general and administrative costs.
TC Energy Management's discussion and analysis 2020 | 69


OTHER INCOME STATEMENT ITEMS
Interest expense
year ended December 31
(millions of $)202020192018
Interest on long-term debt and junior subordinated notes   
Canadian dollar-denominated(685)(598)(549)
U.S. dollar-denominated(1,302)(1,326)(1,325)
Foreign exchange impact(446)(434)(394)
 (2,433)(2,358)(2,268)
Other interest and amortization expense(89)(161)(121)
Capitalized interest294 186 124 
Interest expense(2,228)(2,333)(2,265)
Interest expense in 2020 decreased by $105 million compared to 2019 primarily due to the net effect of:
higher capitalized interest largely related to Keystone XL and Coastal GasLink prior to its change to equity accounting upon the sale of a 65 per cent interest in the project on May 22, 2020, partially offset by lower capitalized interest due to the completion of Napanee construction in first quarter 2020. The increase on Keystone XL is largely the result of additional capital expenditures along with the inclusion of previously impaired capital costs in the basis for calculating capitalized interest following the decision to proceed with construction of the pipeline. These legacy costs were not re-capitalized but are included for determining capitalized interest in accordance with GAAP
lower interest rates on reduced levels of short-term borrowings
long-term debt issuances, net of maturities. Refer to the Financial condition section for further details on long-term debt and junior subordinated notes
foreign exchange impact from a stronger U.S. dollar on translation of U.S. dollar-denominated interest.
Interest expense in 2019 increased by $68 million compared to 2018 mainly due to the net effect of:
long-term debt and junior subordinated note issuances in 2019 and 2018, net of maturities
foreign exchange impact from a stronger U.S. dollar on translation of U.S. dollar-denominated interest
increased levels of short-term borrowings
higher capitalized interest, largely related to Keystone XL and Napanee.
Allowance for funds used during construction
year ended December 31
(millions of $)202020192018
Allowance for funds used during construction
Canadian dollar-denominated106 203 103 
U.S. dollar-denominated 182 205 326 
Foreign exchange impact61 67 97 
Allowance for funds used during construction349 475 526 
AFUDC decreased by $126 million in 2020 compared to 2019. The decrease in Canadian dollar-denominated AFUDC is primarily due to NGTL System expansion projects placed in service. The decrease in U.S. dollar-denominated AFUDC is primarily the result of the suspension of recording AFUDC on Tula, effective January 1, 2020, due to ongoing construction delays on the project, partially offset by continuing construction of the Villa de Reyes project.
AFUDC decreased by $51 million in 2019 compared to 2018 primarily as a result of Columbia Gas and Columbia Gulf growth projects placed in service, partially offset by capital expenditures on our NGTL System and continued investment in our Mexico projects.
70 | TC Energy Management's discussion and analysis 2020


Interest income and other
year ended December 31
(millions of $)202020192018
Interest income and other included in comparable earnings173 162 177 
Specific items:
Foreign exchange (losses)/ gains – inter-affiliate loan (86)53 (5)
Risk management activities126 245 (248)
Interest income and other213 460 (76)
Interest income and other decreased by $247 million in 2020 compared to 2019 and increased by $536 million in 2019 compared to 2018 and included the following specific items which have been removed from our calculation of Interest income and other included in comparable earnings:
foreign exchange (losses)/ gains on the peso-denominated inter-affiliate loan receivable from the Sur de Texas joint venture
unrealized gains and losses from changes in the fair value of derivatives used to manage our foreign exchange risk.
Interest income and other included in comparable earnings increased by $11 million in 2020 compared to 2019 primarily due to the net effect of:
lower realized losses in 2020 compared to 2019 on derivatives used to manage our net exposure to foreign exchange rate fluctuations on U.S. dollar-denominated income
lower interest income in 2020 related to the peso-denominated inter-affiliate loan receivable from the Sur de Texas joint venture due to lower interest rates and the foreign exchange impact of a weaker peso on the translation of interest income during the year.
Interest income and other included in comparable earnings decreased by $15 million in 2019 compared to 2018 due to the net effect of:
higher realized losses in 2019 compared to 2018 on derivatives used to manage our net exposure to foreign exchange rate fluctuations on U.S. dollar-denominated income
higher interest income in 2019 related to the peso-denominated inter-affiliate loan receivable from the Sur de Texas joint venture due to increased amounts outstanding.
Our proportionate share of the corresponding foreign exchange gains and losses and interest expense on the peso-denominated inter-affiliate loans to the Sur de Texas joint venture from its partners is reflected in Income from equity investments in the Corporate and Mexico Natural Gas Pipelines segments, respectively, resulting in no impact on net income.
TC Energy Management's discussion and analysis 2020 | 71


Income tax expense
year ended December 31
(millions of $)202020192018
Income tax expense included in comparable earnings(654)(898)(693)
Specific items:
Income tax valuation allowance releases299 195 — 
Loss on sale of Ontario natural gas-fired power plants131 85 — 
Gain on partial sale of Coastal GasLink LP38 — — 
Loss on sale of Columbia Midstream assets18 (173)— 
Gain on partial sale of Northern Courier  46 — 
Alberta corporate income tax rate reduction 32 — 
U.S. Northeast power marketing contracts 
Gain on sale of Coolidge generating station (14)— 
MLP regulatory liability write-off — 115 
U.S. Tax Reform  — 52 
Bison asset impairment — 44 
Sales of U.S. Northeast power generation assets — 27 
Tuscarora goodwill impairment — 
Gain on sale of Cartier Wind power facilities — (27)
Bison contract terminations — (8)
Risk management activities(26)(29)52 
Income tax expense(194)(754)(432)
Income tax expense in 2020 decreased by $560 million compared to 2019 and increased by $322 million in 2019 compared to 2018 and included the following specific items which have been removed from our calculation of Income tax expense included in comparable earnings:
In 2020:
income tax valuation allowance releases of $299 million primarily related to the reassessment of deferred tax assets that were deemed more likely than not to be realized as a result of our March 31, 2020 decision to proceed with the Keystone XL project
an $18 million income tax recovery related to state income taxes on the sale of certain Columbia Midstream assets.
In 2019:
an income tax valuation allowance release of $195 million related to certain prior years' U.S. tax losses resulting from our reassessment of deferred tax assets that are more likely than not to be realized
a $32 million income tax recovery on deferred income tax balances attributable to our Canadian businesses not subject to RRA due to an Alberta corporate income tax rate reduction enacted in June 2019.
In 2018:
a $115 million deferred income tax recovery from an MLP regulatory liability write-off as a result of changes in the U.S. income tax regulations and the treatment of taxes for rate-making purposes in an MLP
a $52 million recovery of deferred income taxes as a result of finalizing the impact of U.S. Tax Reform.
In addition, the income tax impacts of the specific items in Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, Liquids Pipelines, Power and Storage and noted in other sections of this MD&A, were also removed from Income tax expense included in comparable earnings.
Income tax expense included in comparable earnings in 2020 decreased by $244 million compared to 2019 primarily due to lower flow-through income taxes in Canadian rate-regulated pipelines and higher foreign tax rate differentials.
Income tax expense included in comparable earnings in 2019 increased by $205 million compared to 2018 primarily due to higher comparable earnings before income taxes and lower foreign tax rate differentials, partially offset by lower flow-through income taxes in Canadian rate-regulated pipelines.
72 | TC Energy Management's discussion and analysis 2020


U.S. Tax Reform and FERC Actions
In 2017, U.S. Tax Reform was signed into law and the enacted U.S. federal corporate income tax rate was reduced from 35 per cent to 21 per cent effective January 1, 2018. This resulted in a remeasurement of existing deferred income tax assets and deferred income tax liabilities related to our U.S. businesses to reflect the new lower income tax rate as at December 31, 2017. Given the significance of the legislation, SEC registrants were allowed to record provisional amounts at December 31, 2017 which could be adjusted as additional information became available, prepared or analyzed for a period not to exceed one year. We recognized further adjustments to the provisional amount in 2018.
In accordance with FERC Form 501-G and uncontested rate settlement filings, the accumulated deferred income tax balances for all pipelines held wholly or in part by TC PipeLines, LP were eliminated from their respective rate bases. As a result, net regulatory liabilities recorded for these assets pursuant to U.S. Tax Reform were written off, resulting in a further deferred income tax recovery of $115 million in 2018.
Under U.S. Tax Reform, the U.S. Treasury and the U.S. Internal Revenue Service issued final base erosion and anti-abuse tax regulations in 2019 and final anti-hybrid rules on April 7, 2020. The finalization of these regulations did not have a material impact on our 2020 Consolidated financial statements.
Mexico Tax Reform
In 2019, Mexico passed tax reform legislation related to, among other things, interest deductibility and tax reporting. These changes did not have a material impact on our 2020 Consolidated financial statements.
Alberta rate reduction
On December 9, 2020, the Government of Alberta enacted the reduction of the corporate income tax rate to eight per cent effective July 1, 2020. This change did not have a material impact on our 2020 Consolidated financial statements.
Net (income)/ loss attributable to non-controlling interests
year ended December 31
(millions of $)202020192018
Net income attributable to non-controlling interests included in comparable earnings(297)(293)(315)
Specific items:
Bison asset impairment — 538 
Tuscarora goodwill impairment — 59 
Bison contract terminations — (97)
Net (income)/ loss attributable to non-controlling interests(297)(293)185 
Net (income)/ loss attributable to non-controlling interests increased by $4 million in 2020 compared to 2019 primarily due to higher earnings in TC PipeLines, LP, partially offset by the net loss attributable to redeemable non-controlling interest which includes a foreign currency translation loss and return accrual in 2020.
In 2019, Net (income)/ loss attributable to non-controlling interests increased by $478 million compared to 2018 primarily due to the net effect of the following items recorded in 2018:
a $538 million pre-tax charge related to the non-controlling interests' portion of a $722 million Bison asset impairment in TC PipeLines, LP
a $59 million pre-tax charge related to the non-controlling interests' portion of a $79 million Tuscarora goodwill impairment in TC PipeLines, LP
$97 million in pre-tax income related to the non-controlling interests' portion of Bison contract termination payments of $130 million received from certain customers in TC PipeLines, LP.
On consolidation, we recorded the non-controlling interests' 74.5 per cent of these transactions which have been excluded in the calculation of comparable earnings. Refer to the Critical accounting estimates section for more information on our goodwill and asset impairment testing.
TC Energy Management's discussion and analysis 2020 | 73


In 2019, Net income attributable to non-controlling interests included in comparable earnings decreased by $22 million compared to 2018 largely due to lower earnings in TC PipeLines, LP, partially offset by the impact of a stronger U.S. dollar which increased the Canadian dollar equivalent earnings from TC PipeLines, LP.
Preferred share dividends
year ended December 31
(millions of $)202020192018
Preferred share dividends(159)(164)(163)
Preferred share dividends of $159 million in 2020 were generally consistent with 2019 and 2018.
74 | TC Energy Management's discussion and analysis 2020


Financial condition
We strive to maintain strong financial capacity and flexibility in all parts of the economic cycle. We rely on our operating cash flows to sustain our business, pay dividends and fund a portion of our growth. In addition, we access capital markets and engage in portfolio management to meet our financing needs, manage our capital structure and to preserve our credit ratings. More information on how our credit ratings can impact our financing costs, liquidity and operations is available in our AIF available on SEDAR (www.sedar.com).
We believe we have the financial capacity to fund our existing capital program through predictable and growing cash flows from operations, access to capital markets, portfolio management, joint ventures, asset-level financing, cash on hand and substantial committed credit facilities. Annually, in fourth quarter, we renew and extend our credit facilities as required.
We continued to enhance our financial position in 2020 through:
completion of the sale of the Ontario natural gas-fired power plants for net proceeds of approximately $2.8 billion before post-closing adjustments
completion of the sale of a 65 per cent equity interest in Coastal GasLink LP for net proceeds of $656 million
establishment of seven-year senior secured credit facilities for Coastal GasLink LP with current capacity of $6.8 billion. Immediately preceding the equity sale, $1.6 billion was drawn on these facilities and approximately $1.5 billion was paid to TC Energy
TransCanada PipeLines Limited’s issuance of $2.0 billion of seven-year Medium Term Notes at a fixed rate per annum rate of 3.8 per cent and US$1.25 billion of 10-year Senior Unsecured Notes at a fixed per annum rate of 4.1 per cent
establishment of a US$4.2 billion Delayed Draw Term Loan at Columbia Pipeline Group, Inc., on which US$4.0 billion was drawn in January 2021 and the total availability under the loan agreement was reduced accordingly
arrangement of an additional US$2.0 billion of 364-day committed bilateral credit facilities in second quarter 2020 which were extinguished in fourth quarter 2020 as they were no longer required.
In addition, in early January 2021, we put in place a US$4.1 billion project-level credit facility to support the construction of the Keystone XL pipeline that is fully guaranteed by the Government of Alberta and non-recourse to us. We drew US$579 million on the credit facility on January 8, 2021, the proceeds of which were used in part to repurchase a majority of the Government of Alberta's Class A interests. The facility bears interest at a floating rate and matures in January 2024. The suspension of the advancement of the project does not require immediate repayment of the debt as repayment is dependent upon certain other events or decisions specified in the credit facility agreement.
These transactions demonstrate our continued ability to access capital markets under all market conditions, including during periods of stress such as those resulting from COVID-19. Combined with our predictable and growing cash flows from operations, cash on hand, substantial committed credit facilities and various other financing levers available to us, we believe we are well positioned to continue to fund our obligations, capital program and dividends. We do not expect COVID-19 or the recent volatility in commodity prices to have a material impact on our operating cash flows as a significant majority of our revenues are derived from long-term contracts and/or regulated cost of service business models; however, counterparty credit risk has heightened. Refer to the Financial risks section for additional information.
Balance sheet analysis
At December 31, 2020, our current assets totaled $5.2 billion and current liabilities amounted to $12.0 billion, leaving us with a working capital deficit of $6.8 billion compared to $5.2 billion at December 31, 2019. Our working capital deficiency is considered to be in the normal course of business and is managed through:
our ability to generate predictable and growing cash flows from operations
a total of $10.0 billion of committed revolving credit facilities of which $6.0 billion of incremental short-term borrowing capacity remains available, net of $4.0 billion backstopping commercial paper balances. We also have arrangements in place for a further $2.4 billion of demand credit facilities of which $1.2 billion remained available as of December 31, 2020
our access to capital markets, including through incremental credit facilities, portfolio management activities, DRP and Corporate ATM programs, if deemed appropriate.
TC Energy Management's discussion and analysis 2020 | 75


Our total assets at December 31, 2020 were $100.3 billion compared to $99.3 billion at December 31, 2019 primarily reflecting our 2020 capital spending program, partially offset by depreciation, asset sales and the impact of a weaker U.S. dollar at December 31, 2020 compared to December 31, 2019 on translation of our U.S. dollar-denominated assets.
At December 31, 2020 our total liabilities were $66.8 billion, consistent with December 31, 2019.
Our equity at December 31, 2020 was $33.1 billion compared to $32.4 billion at December 31, 2019. The increase is principally due to net income net of common and preferred dividends paid, partially offset by other comprehensive loss.
Consolidated capital structure
The following table summarizes the components of our capital structure.
at December 31Per cent
of total
Per cent
of total
(millions of $, unless otherwise noted)20202019
Notes payable4,176 5 4,300 
Redeemable non-controlling interest1
633 1  — 
Long-term debt, including current portion36,885 45 36,985 46 
Cash and cash equivalents(1,530)(2)(1,343)(2)
Net debt40,164 49 39,942 49 
Junior subordinated notes8,498 10 8,614 11 
Redeemable non-controlling interest2
393 1 — — 
Preferred shares3,980 5 3,980 
Common shareholders' equity3
29,100 35 28,417 35 
82,135 100 80,953 100 
1Classified in Current liabilities on the Consolidated balance sheet.
2Classified in mezzanine equity on the Consolidated balance sheet.
3Includes non-controlling interests.
At February 12, 2021, we had unused capacity of $3.0 billion, $3.0 billion, and US$2.8 billion under our TC Energy equity and TCPL Canadian and U.S. debt shelf prospectuses, respectively, to facilitate future access to capital markets.
Provisions of various trust indentures and credit arrangements with certain of our subsidiaries can restrict those subsidiaries' and, in certain cases, our ability to declare and pay dividends or make distributions under certain circumstances. In the opinion of management, these provisions do not currently restrict our ability to declare or pay dividends. These trust indentures and credit arrangements also require us to comply with various affirmative and negative covenants and maintain certain financial ratios. We were in compliance with all of our financial covenants at December 31, 2020.
Cash flows
The following tables summarize our consolidated cash flows.
year ended December 31
(millions of $)202020192018
Net cash provided by operations7,058 7,082 6,555 
Net cash used in investing activities(6,052)(6,872)(10,019)
1,006 210 (3,464)
Net cash (used in)/provided by financing activities(800)693 2,748 
206 903 (716)
Effect of foreign exchange rate changes on cash and cash equivalents(19)(6)73 
Increase/(decrease) in cash and cash equivalents187 897 (643)
76 | TC Energy Management's discussion and analysis 2020


Cash provided by operating activities
year ended December 31
(millions of $)202020192018
Net cash provided by operations7,058 7,082 6,555 
Increase/(decrease) in operating working capital327 (293)102 
Funds generated from operations7,385 6,789 6,657 
Specific items:
Current income tax expense on sale of Columbia Midstream assets 320 — 
U.S. Northeast power marketing contracts 
Bison contract terminations — (122)
Net gain on sales of U.S. Northeast power generation assets — (14)
Comparable funds generated from operations7,385 7,117 6,522 
Net cash provided by operations
Net cash provided by operations decreased by $24 million in 2020 compared to 2019 primarily due to the amount and timing of working capital changes which was mostly offset by higher funds generated from operations.
Net cash provided by operations increased by $527 million in 2019 compared to 2018 primarily due to the amount and timing of working capital changes as well as higher funds generated from operations.
Comparable funds generated from operations
Comparable funds generated from operations increased by $268 million in 2020 compared to 2019 primarily due to the collection of fees related to the construction of Sur de Texas and Coastal GasLink, the recovery of higher depreciation on the NGTL System and higher comparable earnings, partially offset by lower distributions from the operating activities of our equity investments.
Comparable funds generated from operations increased by $595 million in 2019 compared to 2018 primarily due the net effect of higher comparable earnings, greater distributions from operating activities of our equity investments and the recovery of higher depreciation on the NGTL System.
Cash used in investing activities
year ended December 31
(millions of $)202020192018
Capital spending
Capital expenditures(8,013)(7,475)(9,418)
Capital projects in development(122)(707)(496)
Contributions to equity investments(765)(602)(1,015)
(8,900)(8,784)(10,929)
Proceeds from sales of assets, net of transaction costs 3,407 2,398 614 
Acquisition(88)— — 
Reimbursement of costs related to capital projects in development — 470 
Other distributions from equity investments 186 121 
Payment for unredeemed shares of Columbia Pipeline Group, Inc. (373)— 
Deferred amounts and other(471)(299)(295)
Net cash used in investing activities(6,052)(6,872)(10,019)
TC Energy Management's discussion and analysis 2020 | 77


Net cash used in investing activities decreased from $6.9 billion in 2019 to $6.1 billion in 2020 primarily as a result of proceeds received in 2020 on the sales of our Ontario natural gas-fired power plants and a 65 per cent equity interest in Coastal GasLink LP as well as the payment to dissenting Columbia Pipeline Group, Inc. shareholders in 2019, discussed below. This was partially offset by the cost to acquire the remaining 50 per cent ownership interest in TC Turbines.
Net cash used in investing activities decreased from $10.0 billion in 2018 to $6.9 billion in 2019 primarily as a result of proceeds received from the sales of certain Columbia Midstream assets and the Coolidge generating station along with lower capital expenditures and contributions to equity investments. This was partially offset by increased spending on capital projects under development, non-recurrence of Coastal GasLink recoveries realized in 2018 as well as a payment to dissenting Columbia Pipeline Group, Inc. shareholders in 2019 for the appraised value of their shares plus interest pursuant to a court decision which affirmed the original share purchase price.
Capital spending1
The following table summarizes capital spending by segment.
year ended December 31
(millions of $)202020192018
Canadian Natural Gas Pipelines3,608 3,906 2,478 
U.S. Natural Gas Pipelines2,785 2,516 5,771 
Mexico Natural Gas Pipelines173 357 797 
Liquids Pipelines1,442 954 581 
Power and Storage834 1,019 1,257 
Corporate58 32 45 
8,900 8,784 10,929 
1Capital spending includes capacity capital expenditures, maintenance capital expenditures, capital projects in development and contributions to equity investments.
Capital expenditures
Our capital expenditures in 2020 were incurred primarily for the expansion of the NGTL System and Columbia Gas projects, construction of Keystone XL, construction of Coastal GasLink prior to the sale of a 65 per cent equity interest as well as maintenance capital expenditures. Higher capital expenditures in 2020 reflect increased spending on Keystone XL and Columbia Gas projects, partially offset by reduced spending on the NGTL System, Napanee and the adoption of equity accounting for our ownership in Coastal GasLink LP after its partial sale.
Capital projects in development
Costs incurred during 2020, 2019 and 2018 on capital projects in development were predominantly attributable to spending on Keystone XL. The decrease in development spending in 2020 compared to 2019 is due to project costs being reflected in Capital expenditures subsequent to our March 31, 2020 decision to proceed with construction.
Contributions to equity investments
Contributions to equity investments increased in 2020 compared to 2019 mainly due to higher investment in Bruce Power and our investment in Coastal GasLink LP subsequent to its reclassification to an equity investment.
Contributions to equity investments decreased in 2019 compared to 2018 mainly due to lower investments in Millennium and Sur de Texas, partially offset by higher investment in Bruce Power.
Contributions to equity investments in 2019 and 2018 include our proportionate share of Sur de Texas debt financing.
Proceeds from sales of assets
In 2020, we completed the following portfolio management transactions. All cash proceeds amounts are prior to income tax and post-closing adjustments:
the sale of our Ontario natural gas-fired power plant assets for net proceeds of approximately $2.8 billion
the sale of a 65 per cent equity interest in Coastal GasLink LP for net proceeds of $656 million.
In addition to the proceeds from the above transactions, in 2020, we received $1.5 billion from the Coastal GasLink LP project-level financing which preceded the equity sale.
78 | TC Energy Management's discussion and analysis 2020


In 2019, we completed the following transactions. All cash proceeds amounts are prior to income tax and post-closing adjustments:
the sale of certain Columbia Midstream assets for proceeds of approximately US$1.3 billion
the sale of Coolidge generating station for proceeds of US$448 million
the sale of an 85 per cent equity interest in Northern Courier for proceeds of $144 million.
In addition to the proceeds from the above transactions, in 2019, we received a $1.0 billion distribution from the Northern Courier debt issuance which preceded the equity sale.
In October 2018, we completed the sale of our interests in the Cartier Wind power facilities in Québec for proceeds of approximately $630 million, before post-closing adjustments.
Acquisition
On November 13, 2020, we acquired the remaining 50 per cent ownership interest in TC Turbines for cash consideration of US$67 million.
Reimbursement of costs related to capital projects in development
In November 2018, we received $470 million in accordance with provisions in the agreements with the LNG Canada joint venture participants allowing them to reimburse us for their share of pre-FID costs.
Other distributions from equity investments
Other distributions from equity investments in 2019 and 2018 primarily reflect our proportionate share of Bruce Power and Northern Border financings undertaken to fund their respective capital programs and to also make distributions to their partners. In 2019 and 2018, we received distributions of $120 million and $121 million, respectively, from Bruce Power in connection with their issuance of senior notes in the capital markets. We also received distributions of $66 million in 2019 from Northern Border originating from a draw on its revolving credit facility to manage capitalization levels.
Cash (used in)/ provided by financing activities
year ended December 31
(millions of $)202020192018
Notes payable (repaid)/issued, net(220)1,656 817 
Long-term debt issued, net of issue costs5,770 3,024 6,238 
Long-term debt repaid(3,977)(3,502)(3,550)
Junior subordinated notes issued, net of issue costs 1,436 — 
Loss on settlement of financial instruments(130)— — 
Dividends and distributions paid(3,367)(2,174)(1,954)
Contributions from redeemable non-controlling interest1,033 — — 
Common shares issued, net of issue costs91 253 1,148 
Partnership units of TC PipeLines, LP issued, net of issue costs — 49 
Net cash (used in)/provided by financing activities(800)693 2,748 
TC Energy Management's discussion and analysis 2020 | 79


Net cash provided by financing activities decreased by $1.5 billion in 2020 compared to 2019 primarily due to the net repayment of notes payable in 2020, the issuance of junior subordinated notes in 2019 and higher cash dividends and distributions paid in 2020 as DRP participation was no longer satisfied through the issuance of common shares from treasury at a discount. This was partially offset by higher issuances of long-term debt and contributions in support of Keystone XL construction in the form of a redeemable non-controlling interest.
Net cash provided by financing activities decreased by $2.1 billion in 2019 compared to 2018 due to lower issuances of long-term debt and common shares, partially offset by junior subordinated notes issued in 2019 and increased notes payable outstanding.
The principal transactions reflected in our financing activities are discussed in further detail below.
Long-term debt issued
The following table outlines significant long-term debt issuances in 2020:
(millions of Canadian $, unless otherwise noted)
CompanyIssue dateType Maturity dateAmountInterest rate
TRANSCANADA PIPELINES LIMITED
April 2020Senior Unsecured NotesApril 2030US 1,250 4.10 %
April 2020Medium Term NotesApril 20272,000 3.80 %
PORTLAND NATURAL GAS TRANSMISSION SYSTEM
October 2020Senior Unsecured NotesOctober 2030US 125 2.84 %
GAS TRANSMISSION NORTHWEST LLC
June 2020Senior Unsecured NotesJune 2030US 175 3.12 %
COASTAL GASLINK PIPELINE LIMITED PARTNERSHIP1
April 2020Senior Secured Credit FacilitiesApril 20271,603 Floating
1On April 28, 2020, Coastal GasLink LP entered into secured long-term project financing credit facilities. On May 22, 2020, TC Energy completed the sale of a 65 per cent equity interest in Coastal GasLink LP and subsequently accounts for its remaining 35 per cent interest using the equity method. Immediately preceding the equity sale, Coastal GasLink LP made an initial draw of $1.6 billion on the credit facilities, of which approximately $1.5 billion was paid to TC Energy.
The net proceeds of the above TCPL debt issuances were used for general corporate purposes, to fund our capital program and to repay existing debt.
In addition, on January 4, 2021, we put in place a US$4.1 billion project-level credit facility to support the construction of the Keystone XL pipeline that is fully guaranteed by the Government of Alberta and non-recourse to us. We drew US$579 million on the credit facility on January 8, 2021, the proceeds of which were used in part to repurchase a majority of the Government of Alberta's Class A interests. The facility bears interest at a floating rate and matures in January 2024. The suspension of the advancement of the project does not require immediate repayment of the debt as repayment is dependent upon certain other events or decisions specified in the credit facility agreement. Refer to the notes to our 2020 Consolidated financial statements for additional information.
On December 9, 2020, our subsidiary, Columbia Pipeline Group, Inc., entered into a US$4.2 billion Delayed Draw Term Loan due in June 2022, bearing interest at a floating rate, to be used for general corporate purposes. In January 2021, US$4.0 billion was drawn on the Delayed Draw Term Loan and the total availability under the loan agreement was reduced accordingly.
80 | TC Energy Management's discussion and analysis 2020


Long-term debt retired/repaid
The following table outlines significant long-term debt repaid in 2020 and early 2021:
(millions of Canadian $, unless otherwise noted)
CompanyRetirement/repayment date Type AmountInterest rate
TRANSCANADA PIPELINES LIMITED
January 2021DebenturesUS 400 9.875 %
November 2020Debentures250 11.80 %
October 2020Senior Unsecured NotesUS 1,000 3.80 %
March 2020Senior Unsecured NotesUS 750 4.60 %
PORTLAND NATURAL GAS TRANSMISSION SYSTEM
October 2020Unsecured Loan FacilityUS 99 Floating
COLUMBIA PIPELINE GROUP, INC.
June 2020Senior Unsecured NotesUS 750 3.30 %
GAS TRANSMISSION NORTHWEST LLC
June 2020Senior Unsecured NotesUS 100 5.29 %
For more information about long-term debt and junior subordinated notes issued and long-term debt repaid in 2020, 2019 and 2018, refer to the notes to our 2020 Consolidated financial statements.
Contributions from Redeemable non-controlling interest
During 2020, our Keystone XL subsidiaries issued $1,033 million of Class A Interests to the Government of Alberta. For more information on the redeemable non-controlling interest, refer to the notes to our 2020 Consolidated financial statements.
Dividend Reinvestment Plan
Under the DRP, eligible holders of common and preferred shares of TC Energy can reinvest their dividends and make optional cash payments to obtain additional TC Energy common shares. From July 1, 2016 to October 31, 2019, common shares were issued from treasury at a discount of two per cent to market prices over a specified period.
Commencing with the dividends declared October 31, 2019, common shares purchased under TC Energy’s DRP are no longer satisfied with shares issued from treasury at a discount, but rather are acquired on the open market at 100 per cent of the weighted average purchase price.
TC Energy Corporate ATM Program
In June 2017, we established an ATM program that allowed us to issue common shares from treasury from time to time, at the prevailing market price. The ATM program, which was effective for a 25-month period, was initially established with an aggregate issuance limit of up to $1.0 billion in common shares or the U.S. dollar equivalent. In June 2018, we replenished the capacity available under the ATM program to allow for the issuance of additional common shares from treasury of up to $1.0 billion for a revised aggregate total of $2.0 billion or the U.S. dollar equivalent.
In 2018, 20 million common shares were issued under the ATM program at an average price of $56.13 per share for proceeds of $1.1 billion, net of approximately $10 million of related commissions and fees.
In July 2019, the ATM program expired with no common shares issued in 2019.
On December 7, 2020, we established a new ATM program that allows us to issue common shares from treasury having an aggregate gross sales price of up to $1.0 billion, or the U.S. dollar equivalent, to the public from time to time, at our discretion, at the prevailing market price when sold through the TSX, the NYSE, or any other applicable existing trading market for TC Energy common shares in Canada or the U.S. While not a component of our base funding plan, the ATM program, which is effective for a 25-month period, provides additional financial flexibility in support of our consolidated credit metrics and capital program and may be activated if, and as, deemed appropriate. No common shares were issued under the new program in 2020.
TC Energy Management's discussion and analysis 2020 | 81


TC PipeLines, LP
ATM equity issuance program
In 2018, TC PipeLines, LP issued 0.7 million common units under its ATM program, which authorized TC PipeLines, LP from time to time to offer and sell, through sales agents, common units representing limited partner interests. In 2018, TC PipeLines, LP‘s ATM program generated net proceeds of approximately $39 million. In August 2019, this ATM program expired with no common unit issuances in 2019. At December 31, 2020 and 2019, our ownership interest in TC PipeLines, LP was 25.5 per cent.
Share information
as at February 12, 2021 
Common Sharesissued and outstanding
 940  million 
Preferred Sharesissued and outstandingconvertible to
Series 114.6 millionSeries 2 preferred shares
Series 27.4 millionSeries 1 preferred shares
Series 310 millionSeries 4 preferred shares
Series 4 4 millionSeries 3 preferred shares
Series 512.1 millionSeries 6 preferred shares
Series 61.9 millionSeries 5 preferred shares
Series 724 millionSeries 8 preferred shares
Series 9 18 millionSeries 10 preferred shares
Series 1110 million Series 12 preferred shares
Series 1320 millionSeries 14 preferred shares
Series 1540 millionSeries 16 preferred shares
Options to buy common sharesoutstandingexercisable
9 million5 million
On January 30, 2021, 818,876 Series 5 preferred shares were converted, on a one-for-one basis, into Series 6 preferred shares and 175,208 Series 6 preferred shares were converted, on a one-for-one basis, into Series 5 preferred shares.
On June 30, 2020, 401,590 Series 3 preferred shares were converted, on a one-for-one basis, into Series 4 preferred shares and 1,865,362 Series 4 preferred shares were converted, on a one-for-one basis, into Series 3 preferred shares.
On December 31, 2019, 173,954 Series 1 preferred shares were converted, on a one-for-one basis, into Series 2 preferred shares and 5,252,715 Series 2 preferred shares were converted, on a one-for-one basis, into Series 1 preferred shares.
For more information on preferred shares refer to the notes to our 2020 Consolidated financial statements.
82 | TC Energy Management's discussion and analysis 2020


Dividends
year ended December 31
202020192018
Dividends declared
per common share$3.24 $3.00 $2.76 
per Series 1 preferred share$0.86975 $0.8165 $0.8165 
per Series 2 preferred share$0.7099 $0.89872 $0.78835 
per Series 3 preferred share$0.48075 $0.538 $0.538 
per Series 4 preferred share$0.54989 $0.73872 $0.62748 
per Series 5 preferred share$0.56575 $0.56575 $0.56575 
per Series 6 preferred share$0.52537 $0.7976 $0.69341 
per Series 7 preferred share$0.97575 $0.98181 $1.00 
per Series 9 preferred share$0.9405 $1.032 $1.0625 
per Series 11 preferred share$0.92194 $0.95 $0.95 
per Series 13 preferred share$1.375 $1.375 $1.375 
per Series 15 preferred share$1.225 $1.225 $1.225 
On February 17, 2021, we increased the quarterly dividend on our outstanding common shares by 7.4 per cent to $0.87 per common share for the quarter ending March 31, 2021 which equates to an annual dividend of $3.48 per common share.
Credit facilities
We have several committed credit facilities that support our commercial paper programs and provide short-term liquidity for general corporate purposes. In addition, we have demand credit facilities that are also used for general corporate purposes, including issuing letters of credit and providing additional liquidity.
At February 12, 2021, we had a total of $12.4 billion of committed revolving and demand credit facilities, including:
BorrowerDescriptionMaturesTotal Facilities
Unused
capacity1
  
Committed, syndicated, revolving, extendible, senior unsecured credit facilities:
TCPLSupports TCPL's Canadian dollar commercial paper program and for general corporate purposes December 2024$3.0 billion$2.4 billion
TCPL/TCPL USA/Columbia/TransCanada American Investments Ltd.
Supports TCPL's and TCPL USA's U.S. dollar commercial paper programs and for general corporate purposes of the borrowers, guaranteed by TCPL December 2021US$4.5 billionUS$4.1 billion
TCPL/TCPL USA/Columbia/TransCanada American Investments Ltd.
For general corporate purposes of the borrowers, guaranteed by TCPL December 2022US$1.0 billionUS$1.0 billion
Demand senior unsecured revolving credit facilities:
TCPL/TCPL USASupports the issuance of letters of credit and provides additional liquidity; TCPL USA facility guaranteed by TCPLDemand$2.1 billion$1.1 billion
Mexico subsidiaryFor Mexico general corporate purposes, guaranteed by TCPLDemandMXN$5.0 billionMXN$3.0 billion
1Unused capacity is net of commercial paper outstanding and facility draws.
At February 12, 2021, certain of TC Energy's other subsidiaries had an additional $0.8 billion of undrawn capacity on third-party committed credit facilities.
In second quarter 2020, an additional US$2.0 billion of 364-day committed bilateral credit facilities were established. These credit facilities were extinguished in fourth quarter 2020 as they were no longer required.
TC Energy Management's discussion and analysis 2020 | 83


Contractual obligations
Our contractual obligations include our long-term debt, operating leases, purchase obligations and other liabilities incurred in our business such as environmental liability funds and employee pension and post-retirement benefit plans.
Payments due (by period)
at December 31, 2020Total< 1 year1 - 3 years4 - 5 years> 5 years
(millions of $)
Notes payable4,176 4,176 — — — 
Long-term debt and junior subordinated notes1
45,701 1,972 3,762 2,998 36,969 
Operating leases2
641 86 142 132 281 
Purchase obligations5,182 2,514 1,018 442 1,208 
 55,700 8,748 4,922 3,572 38,458 
1Excludes issuance costs.
2Includes future payments for corporate offices, various premises, services, equipment, land and lease commitments from corporate restructuring. Some of our operating leases include the option to renew the agreement for one to 25 years.
Notes payable
Total notes payable outstanding were $4.2 billion at the end of 2020 compared to $4.3 billion at the end of 2019.
Long-term debt and junior subordinated notes
At December 31, 2020, we had $36.9 billion of long-term debt and $8.5 billion of junior subordinated notes outstanding compared to $37.0 billion of long-term debt and $8.6 billion of junior subordinated notes at December 31, 2019.
We attempt to ladder the maturity profile of our debt. The weighted-average maturity of our long-term debt, excluding call features, and junior subordinated notes is approximately 22 years.
Interest payments
At December 31, 2020, scheduled interest payments related to our long-term debt and junior subordinated notes were as follows:
at December 31, 2020Total< 1 year1 - 3 years4 - 5 years> 5 years
(millions of $)
Long-term debt24,363 1,808 3,370 3,095 16,090 
Junior subordinated notes21,532 442 884 885 19,321 
 45,895 2,250 4,254 3,980 35,411 
Purchase obligations
We have purchase obligations that are transacted at market prices and in the normal course of business, including long-term natural gas transportation and purchase arrangements.
Capital expenditure commitments include obligations related to the construction of growth projects and are based on the projects proceeding as planned. Changes to these projects, including cancellation, would reduce or possibly eliminate these commitments as a result of cost mitigation efforts.
84 | TC Energy Management's discussion and analysis 2020


Payments due (by period)
at December 31, 2020Total< 1 year1 - 3 years4 - 5 years> 5 years
(millions of $)
Canadian Natural Gas Pipelines     
Transportation by others1
1,690 131 304 286 969 
Capital spending2
936 781 154 — 
U.S. Natural Gas Pipelines
Transportation by others1
680 119 215 123 223 
Capital spending2
254 254 — — — 
Mexico Natural Gas Pipelines
Capital spending2
152 76 76 — — 
Liquids Pipelines   
Capital spending2
880 857 23 — — 
Other12 — 
Power and Storage  
Capital spending2
279 152 126 — 
Other3
62 14 19 14 15 
Corporate  
Other233 123 95 14 
Capital spending2
— — — 
 5,182 2,514 1,018 442 1,208 
1Demand rates are subject to change. The contractual obligations in the table are based on demand volumes only and exclude variable charges incurred when volumes flow.
2Amounts are primarily for capital expenditures and contributions to equity investments for capital projects. Amounts are estimates and are subject to variability based on timing of construction and project requirements.
3Includes estimates of certain amounts which are subject to change depending on plant-fired hours, the consumer price index, actual plant maintenance costs, plant salaries as well as changes in regulated rates for fuel transportation.
Outlook
Our capital program is comprised of $20 billion of secured projects and $8 billion of projects under development, which are subject to key commercial or regulatory approvals. The program is expected to be financed through our growing internally generated cash flows and a combination of other funding options including:
senior debt
hybrid securities
preferred shares
asset sales
project financing
potential involvement of strategic or financial partners.
In addition, we may access additional funding options below, as deemed appropriate:
common shares issued from treasury under our DRP
common shares issued under our ATM program
discrete common equity issuance.
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GUARANTEES
Northern Courier
As part of our role as operator of the Northern Courier pipeline, we have guaranteed the financial performance of the pipeline related to delivery and terminalling of bitumen and diluent and contingent financial obligations under sub-lease agreements. The guarantees have terms ranging to 2055.
At December 31, 2020, our potential exposure under the Northern Courier guarantees was estimated to be $300 million with a carrying amount of approximately $26 million.
Sur de Texas
We and our partner on the Sur de Texas pipeline, IEnova, have jointly guaranteed the financial performance of the entity which owns the pipeline. Such agreements include a guarantee and a letter of credit which are primarily related to the delivery of natural gas. The guarantees have terms extending up to June 2021.
At December 31, 2020, our share of potential exposure under the Sur de Texas pipeline guarantees was estimated to be $100 million with a carrying amount of less than $1 million.
Bruce Power
We and our joint venture partner on Bruce Power, BPC Generation Infrastructure Trust, have each severally guaranteed certain contingent financial obligations of Bruce Power related to a lease agreement. The Bruce Power guarantee has a term to 2023.
At December 31, 2020, our share of the potential exposure under the Bruce Power guarantee was estimated to be $88 million with no carrying amount.
Other jointly-owned entities
We and our partners in certain other jointly-owned entities have also guaranteed (jointly, severally, jointly and severally, or exclusively) the financial performance of these entities. Such agreements include guarantees and letters of credit which are primarily related to delivery of natural gas, construction services including purchase agreements and the payment of liabilities. The guarantees have terms ranging to 2043.
Our share of the potential exposure under these assurances was estimated at December 31, 2020 to be approximately $78 million with a carrying amount of $4 million. In certain cases, if we make a payment that exceeds our ownership interest, the additional amount must be reimbursed by our partners.
OBLIGATIONS – PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
In 2021, we expect to make funding contributions of approximately $128 million for the defined benefit pension plans, approximately $6 million for other post-retirement benefit plans and approximately $59 million for the savings plans and defined contribution pension plans. In addition, we expect to provide an additional estimated $13 million letter of credit to the Canadian defined benefit plan for solvency funding requirements.
In 2020, we made funding contributions of $124 million to our defined benefit pension plans, $9 million for other post-retirement benefit plans and $58 million for the savings plan and defined contribution pension plans. We also provided an additional $13 million letter of credit to the Canadian defined benefit plan for funding of solvency requirements.
Outlook
The next actuarial valuation for our pension and other post-retirement benefit plans will be carried out as at January 1, 2021. Based on current market conditions, we expect funding requirements for these plans to approximate 2021 levels for several years. This will allow us to amortize solvency deficiencies in the plans, in addition to normal service costs. We do not expect COVID-19 to impact our funding requirements.
The net benefit cost for our defined benefit and other post-retirement plans increased to $114 million in 2020 from $83 million in 2019 mainly due to lower discount rates.
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Future net benefit costs and the amount we will need to contribute to fund our plans will depend on a range of factors including:
interest rates
actual returns on plan assets
changes to actuarial assumptions and plan design
actual plan experience versus projections
amendments to pension plan regulations and legislation.
We do not expect future increases in the level of funding needed to maintain our plans to have a material impact on our liquidity or financial condition.

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Other information
ENTERPRISE RISK MANAGEMENT
Risk management is integral to the successful operation of our business. Our strategy is to ensure that our risks and related exposures are aligned with our business objectives and risk tolerance. We manage risk through a centralized enterprise risk management (ERM) process which identifies risks that could materially impact the achievement of our strategic objectives, including ESG-related risks.
Our Board of Directors' Governance Committee oversees our ERM activities, which includes ensuring appropriate management systems are in place to identify and manage our risks, ensuring adequate Board oversight of our risk management policies, programs and practices. Other Board committees oversee specific types of risk:
the Human Resources Committee oversees executive resourcing, organizational capabilities and compensation risk to ensure human and labour policies and remuneration practices align with our overall business strategy
the HSSE Committee oversees operational, health, safety, sustainability and environmental risk
the Audit Committee oversees management's role in managing financial risk, including market risk, counterparty credit risk and cyber security.
Our executive leadership team is accountable for developing and implementing risk management plans and actions, and effective risk management is reflected in their compensation.
We have discussed the risks that are specific to each of our business segments in their respective sections of this MD&A. The following is a summary of certain general risks that affect our company across all of our operations and are being continuously monitored.
Risk and DescriptionImpactMonitoring and Mitigation
Business interruption
Operational risks, including equipment malfunctions and breakdowns, labour disputes, a pandemic, natural disasters and other catastrophic events including those related to climate change, acts of terror and sabotage.
Decrease in revenues and increase in operating costs, legal proceedings or regulatory actions, or other expenses all of which could reduce our earnings. Losses not recoverable through tolls or contracts or covered by insurance could have an adverse effect on operations, cash flows and financial position. Certain events could lead to risk of injury and environmental damage.
Our management system, TOMS, includes our corporate health, safety, sustainability, environment and asset integrity programs to prevent incidents and protect employees, contractors, members of the public, the environment and our assets. TOMS includes incident, emergency and crisis management programs to ensure TC Energy can effectively respond to operational risk events, minimize loss or injury and enhance our ability to resume operations. This is supported by our business continuity program that identifies critical business processes and develops corresponding business resumption plans. We also have a comprehensive insurance program to mitigate a certain portion of these risks, but insurance does not cover all events in all circumstances.
Cyber security
We rely on our information technology to process, transmit and store electronic information, including information we use to safely operate our assets. We continue to face cyber security risks and could be subject to cyber security events directed against our information technology. The methods used to obtain unauthorized access, disable or degrade service or sabotage systems are constantly evolving and may be difficult to anticipate or to detect for long periods of time.
A breach in the security of our information technology could expose our business to a risk of loss, misuse or interruption of critical information and functions. This could affect our operations, damage our assets, result in safety incidents, damage to the environment, and/or result in reputational harm, competitive disadvantage, regulatory enforcement actions and potential litigation, which could have a material adverse effect on our operations, financial position and results of operations.
We have a comprehensive cyber security strategy which aligns with industry and recognized standards for cyber security. This strategy is regularly reviewed and updated, and the status of our cyber security program is reported to the Audit Committee on a quarterly basis. The program includes cyber security risk assessments, continuous monitoring of networks and other information sources for threats to the organization, comprehensive incident response plans/processes and a robust cyber security awareness program for employees and contractors. We have insurance which may cover losses from physical damage to our facilities as a result of a cyber security event, but insurance does not cover all events in all circumstances. 
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Risk and DescriptionImpactMonitoring and Mitigation
Reputation and relationships
Our operations and growth prospects require us to have strong relationships with key stakeholders including customers, Indigenous communities, landowners, suppliers, investors, governments and government agencies, and environmental non-governmental organizations. Inadequately managing expectations and concerns important to stakeholders, including those related to climate change, could affect our reputation and our ability to operate and grow, as well as our access to and cost of capital.
Our reputation with stakeholders, including Indigenous communities, can have a significant impact on our operations and projects, infrastructure development and overall reputation. Should investors develop negative perceptions regarding our energy infrastructure business, future access to investment capital could be negatively impacted.
Our four core values – safety, responsibility, collaboration and integrity – guide us in building and maintaining all of our key relationships as well as our interactions with stakeholders. We are proud of the strong relationships we have built with stakeholders across our geographies, and we are continuously seeking ways to strengthen these relationships. Beyond our core values, we have specific stakeholder programs and policies that shape our interactions, clarify expectations, assess risks and facilitate mutually beneficial outcomes. Our most recent Report on Sustainability includes details on our specific commitments related to safety, partnerships with Indigenous communities, focus on landowner relationships and our workplace inclusion and diversity.
Access to capital at a competitive cost
We require substantial amounts of capital in the form of debt and equity to finance our portfolio of growth projects and maturing debt obligations at costs that are sufficiently lower than the returns on our investments.
Significant deterioration in market conditions for an extended period of time and changes in investor and lender sentiment could affect our ability to access capital at a competitive cost, which could negatively impact our ability to deliver an attractive return on our investments or inhibit our growth.
We operate within our financial means and risk tolerances, maintain a diverse array of funding levers and also utilize portfolio management as an important component of our financing program. In addition, we have candid and proactive engagement with the investment community, including credit rating agencies, with the objective of keeping them apprised of developments in our business and factually communicating our prospects, risks and challenges, including those related to ESG as well as receiving their feedback. We also conduct research around the ESG preferences of our investors and financial partners, which are considered in our ESG and sustainability approach and reporting.
Capital allocation strategy
To be competitive, we must offer integral energy infrastructure services in supply and demand areas, and for forms of energy that are attractive to customers.
Should alternative lower-carbon forms of energy result in decreased demand for our services on an accelerated timeline versus our pace of depreciation, the value of our long-lived energy infrastructure assets could be negatively impacted. 
We have a diverse portfolio of assets and use portfolio management to divest of non-strategic assets, effectively rotating capital while adhering to our risk preferences and focus on per share metrics. We conduct analyses to identify resilient supply sources as part of our energy fundamentals and strategic development reviews. We recover depreciation through our regulated pipeline rates which is an important lever to accelerate or decelerate the return of capital from a substantial portion of our assets. We also monitor signposts including customer, regulatory and government decisions as well as innovative technology development to inform our capital allocation strategy and adapt to changing market conditions.
Execution and capital costs
Investing in large infrastructure projects involves substantial capital commitments and associated execution risks based on the assumption that these assets will deliver an attractive return on investment in the future.
While we carefully determine the expected cost of our capital projects, under some commercial arrangements we bear capital cost overrun and schedule risk which may decrease our return on these projects.
Our Project Governance Program supports project execution and operational excellence. The program aligns with TOMS which provides the framework and standards to optimize project execution, ensuring timely and on budget completion. We prefer to contractually structure our projects to recover development costs if a project does not proceed along with mechanisms to minimize the impact should cost overruns occur. However, under some commercial arrangements, we share or bear the cost of execution risk. Additionally, we can utilize project financing and/or involve partners in our projects to manage capital at risk.
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Health, safety, sustainability and environment
The Board's HSSE committee oversees operational risk, people and process safety, security of personnel, environmental and climate change related risks, and monitors development and implementation of systems, programs and policies relating to HSSE matters through regular reporting from management. We use an integrated management system that establishes a framework for managing these risks and is used to capture, organize, document, monitor and improve our related policies, programs and procedures.
Our management system, TOMS, is modeled after international standards, including the International Organization for Standardization (ISO) standard for environmental management systems, ISO 14001, and the Occupational Health and Safety Assessment Series for occupational health and safety. TOMS conforms to applicable industry standards and complies with applicable regulatory requirements. It covers our projects and operations and follows a continuous improvement cycle organized into four key areas:
Plan – risk and regulatory assessment, objective and target setting, including achieving total recordable case rate targets and striving for zero incidents as well as defining roles and responsibilities
Do – development and implementation of programs, procedures and standards to manage operational risk
Check – incident reporting, investigation, assurance activities, including internal and external audits, and performance monitoring
Act – non-conformance, non-compliance and opportunities for improvement are managed with performance reviewed by management.
The HSSE committee reviews HSSE performance and operational risk management. It receives detailed reports on:
overall HSSE corporate governance
operational performance and preventive maintenance metrics
asset integrity programs
emergency preparedness, incident response and evaluation
people and process safety performance metrics
our Environment Program, which is part of TOMS
developments in and compliance with applicable legislation and regulations, including those related to the environment
prevention, mitigation and management of risks related to HSSE matters, including climate change or business interruption risks, such as pandemics, that may adversely impact TC Energy
sustainability matters, including social, environmental and climate change related risks and opportunities
our Occupational Health and Hygiene Program, which includes physical and mental health
management's approach to voluntary public disclosure on HSSE matters.
Health, safety and asset integrity
The safety of our employees, contractors and the public as well as the integrity of our pipelines, power and storage infrastructure, are a top priority. All assets are designed, constructed and commissioned with full consideration given to safety and integrity, and are placed in service only after all necessary requirements, both regulatory and internal, have been satisfied.
In 2020, we spent $1.5 billion for pipeline integrity on the natural gas and liquids pipelines we operate, a $286 million increase from 2019 in part due to increased capital expenditures related to pipeline replacements to address population growth adjacent to our pipeline systems, modifications to facilitate the inline inspection of additional pipeline segments, an increased number of inline inspections and corresponding excavations plus repairs on some pipeline systems. Pipeline integrity spending will fluctuate based on the results of annual risk assessments conducted on our pipeline systems and evaluations of information obtained from recent inspections, incidents and maintenance activities.
Under the approved regulatory models in Canada, non-capital pipeline integrity expenditures on CER-regulated natural gas pipelines are generally treated on a flow-through basis and, as a result, fluctuations in these expenditures generally have no impact on our earnings. Similarly, under our Keystone Pipeline System contracts, pipeline integrity expenditures are recovered through the tolling mechanism and, as a result, generally have no impact on our earnings. Non-capital pipeline integrity expenditures on our U.S. natural gas pipelines are primarily treated as operations and maintenance expenditures, and are typically recoverable through tolls approved by FERC.
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Spending associated with process safety and various integrity programs for the power and storage assets we operate is used to minimize risk to employees, contractors, the public, equipment, and the surrounding environment, and also prevent disruptions to serving the energy needs of our customers.
As described in the Business interruption discussion above, we have a set of procedures in place to manage our response to natural disasters, which include catastrophic events such as forest fires, tornadoes, earthquakes, floods, volcanic eruptions and hurricanes. The procedures, which are included in our Emergency Management Program, are designed to help protect the health and safety of our employees and contractors, minimize risk to the public and limit the potential for adverse effects on the environment.
We are committed to protecting the health and safety of all individuals involved in our activities. Our Occupational Health and Hygiene Program provides comprehensive strategies for health promotion and protection. We are committed to delivering effective programs that:
reduce the human and financial impact of illness and injury
ensure fitness for work
strengthen worker resiliency
build organizational capacity by focusing on individual well-being, health education and improved working conditions to sustain a productive workforce
increase mental well-being awareness, provide various mental health supports and training to employees and leaders, measure the success of programs and improve psychological health and safety.
In response to the COVID-19 pandemic, with guidance from government and public health authorities, we have implemented enhanced COVID-19 health and safety protocols and procedures to protect our employees, contractors and other stakeholders.
Environmental risk, compliance and liabilities
TOMS provides requirements for our day-to-day work to protect employees, contractors, our workplace and assets, the communities in which we work and the environment. It conforms to external industry consensus standards and voluntary programs plus complies with applicable legislative requirements. Under TOMS, mandated programs set requirements to manage specific risk areas for TC Energy, including the Environment Program, which is a documented set of processes and procedures that identifies our requirements to proactively and systematically manage environmental hazards and risks throughout the lifecycle of our assets. As part of our Environment Program, we complete environmental assessments for our projects which include field studies that examine existing natural resources, biodiversity and land use along our proposed project footprint such as vegetation, soils, wildlife, water resources, wetland, and protected areas. To conserve and protect the environment during construction, information gathered for an environmental impact assessment is used to develop project-specific environmental protection plans. Additionally, the Environment Program, which applies to all of our operations, includes practices and procedures to manage potential adverse environmental effects to these resources during the full lifecycle of our facilities.
Our primary sources of risk related to the environment include:
changing regulations and requirements coupled with increased costs related to impacts on the environment
product releases, including crude oil, diluent and natural gas, that may cause harm to the environment (land, water and air)
use, storage and disposal of chemicals and hazardous materials
natural disasters and other catastrophic events, including those related to climate change, that may impact our operations.
Our assets are subject to federal, state, provincial and local environmental statutes and regulations governing environmental protection, including air and GHG emissions, water quality, species at risk, wastewater discharges and waste management. Operating our assets requires obtaining and complying with a wide variety of environmental registrations, licenses, permits and other approvals and requirements. Failure to comply could result in administrative, civil or criminal penalties, remedial requirements, or orders affecting future operations.
Through the implementation of our Environment Program, we continually monitor our facilities for compliance with all material legal and regulatory environmental requirements across all jurisdictions where we operate. We also comply with all material legal and regulatory permitting requirements in our project routing and development. We routinely monitor proposed changes in environmental policy, legislation and regulation, and where the risks are uncertain or have the potential to affect our ability to effectively operate our business, we comment on proposals independently or through industry associations.
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We are not aware of any material outstanding orders, claims or lawsuits against us related to releasing or discharging any material into the environment or in connection with environmental protection.
Compliance obligations can result in significant costs associated with installing and maintaining pollution controls, fines and penalties resulting from any failure to comply, and potential limitations on operations. Remediation obligations can result in significant costs associated with the investigation and remediation of contaminated properties, and with damage claims arising from the contamination of properties.
The timing and complete extent of future expenditures related to environmental matters is difficult to estimate accurately because:
environmental laws and regulations and their interpretations and enforcement change
new claims can be brought against our existing or discontinued assets
our pollution control and clean-up cost estimates may change, especially when our current estimates are based on preliminary site investigations or agreements
new contaminated sites may be found, or what we know about existing sites could change
where there is potentially more than one responsible party involved in litigation, we cannot estimate our joint and several liability with certainty.
At December 31, 2020, accruals related to these obligations totaled $24 million (2019 – $29 million), representing the estimated amount we will need to manage our currently known environmental liabilities. We believe we have considered all necessary contingencies and established appropriate reserves for environmental liabilities, however, a risk exists that unforeseen matters may arise requiring us to set aside additional amounts. We adjust reserves regularly to account for changes in liabilities.
Climate change and related regulation
We own assets and have business interests in a number of regions subject to GHG emissions regulations, including GHG emissions management and carbon pricing policies. In 2020, we incurred $64 million (2019 – $69 million) of expenses under existing carbon pricing programs. Across North America, there are a variety of new and evolving initiatives and policies in development at the federal, regional, state and provincial level aimed at reducing GHG emissions. We actively monitor and submit comments to regulators as these new and evolving initiatives are undertaken and policies implemented. We support transparent climate change policies that promote sustainable and economically responsible natural resource development. Our assets in specific geographies are currently subject to GHG regulations and we expect that the number of our assets subject to GHG regulations will continue to increase over time across our footprint. Changes in regulations may result in higher operating costs or other expenses or higher capital expenditures to comply with possible new regulations.
Existing policies
Canadian jurisdictions
ECCC's methane reduction regulations that detail requirements to reduce methane emissions through operational and capital modifications came into effect on January 1, 2020. Alberta, British Columbia and Saskatchewan have drafted their own methane regulations that take the place of the federal regulation in those jurisdictions; however, for federally-regulated facilities in these jurisdictions, the federal methane regulation is applicable. Compliance with the regulations requires an increased level of leak detection and repair (LDAR) surveys and measurements to quantify emission reductions and associated reporting. Power facilities are not affected by this regulation at the current time
the Federal OBPS regulation imposes carbon pricing for larger industrial facilities and sets federal benchmarks for GHG emissions for various industry sectors. This federal regulation is in effect in the provinces of Ontario, Manitoba, Saskatchewan, and New Brunswick as those jurisdictions did not have a provincial plan in place for carbon pricing which met the criteria of the Government of Canada when the policy was developed. Our assets across Canada are subject to some type of carbon pricing as a result
new requirements for federally regulated project applications under the Impact Assessment Agency were recently introduced as the Strategic Assessment of Climate Change, requiring a project proponent to provide a credible plan for a proposed project to achieve net-zero emissions by 2050. As well, in August 2020, the CER published a revision to its Filing Manual, integrating the Strategic Assessment of Climate Change, which includes the requirement that projects regulated by the CER with a lifetime beyond 2050 must also include a credible plan to achieve net zero emissions by 2050. We are assessing the implications of this requirement as part of our project implementation process
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B.C. implemented a tax on GHG emissions from fossil fuel combustion. While we are subject to this tax, the compliance costs are recovered through tolls. Additionally, B.C. established The CleanBC program for industry which directs a portion of the carbon tax paid by industry to fund incentives for cleaner operations by means of performance benchmarking or funding emissions reduction projects
in Alberta, the existing Carbon Competitive Incentive Regulation (CCIR) has been replaced with the Technology Innovation and Emissions Reduction (TIER) regulation as of January 1, 2020. The CCIR required established industrial facilities with GHG emissions above a certain threshold to reduce their emissions below an intensity baseline. The TIER system follows a similar regulatory framework as the CCIR and covers all of our natural gas pipelines and power and storage assets in Alberta. Compliance costs with respect to our regulated Canadian natural gas pipelines are recovered through tolls. A portion of the compliance costs for the power and storage assets are recovered through market pricing and hedging activities
Québec has a GHG cap-and-trade program under the Western Climate Initiative (WCI) GHG emissions market. In Québec, our Bécancour cogeneration plant is subject to this program. The government allocates free emission units for the majority of Bécancour's compliance requirements. The remaining requirements were met with GHG instruments purchased at auctions or secondary markets. The costs of these emissions units are recovered through commercial contracts. The Canadian Mainline natural gas pipeline facilities in Québec are also subject to this program and compliance instruments have been purchased in order to comply with the requirements of this initiative
Ontario does not currently have carbon pricing regulation. Therefore, TC Energy’s electricity and pipeline facilities in this jurisdiction are subject to the Canadian Federal OBPS. The Government of Ontario is in the process of developing a provincial industrial carbon pricing program, the Emissions Performance Standards (EPS). The Ontario EPS system received equivalency status from the Federal Government in August 2020; however, the implementation timeframe and compliance requirements are not finalized. Until that time, Federal OBPS applies to our Canadian Mainline operations in the province and costs under this program are recovered in tolls. At this time, we do not anticipate any material impact to the financial performance of our Ontario natural gas pipeline facilities as a result of this program.
U.S. jurisdictions
Federal: On August 13, 2020, the U.S. Environmental Protection Agency (EPA) issued two final rules to lessen the administrative and compliance cost burden on the oil and gas industry related to the New Source Performance Standards (NSPS). One of the rules, the Methane Policy Rule, was a policy amendment which notably removed the transmission and storage sector from the source category and rescinded the NSPS applicable to those sources. The second rule, the Technical Amendment, changed several requirements including monitoring and repair schedules, recordkeeping and reporting requirements plus provided industry with the option to meet certain state requirements in lieu of federal requirements. Lawsuits brought by environmental groups and various state and local governments against both rules are pending in the D.C. Circuit Court of Appeals
California: Tuscarora facilities are subject to the California Air Resources Board's LDAR program requiring owners/operators of oil and gas facilities to monitor and repair methane leaks. Beginning January 1, 2020, thresholds for leak repair were reduced. California also has a GHG cap-and-trade program linked with Quebec's program through the WCI
Washington: In 2016, the Washington Department of Ecology (Ecology) adopted the Clean Air Rule (Rule) which established a cap and reduce program to regulate GHG emissions from major stationary sources, petroleum product producers, importers and distributors and natural gas distributors within Washington. The Rule was challenged in court and on January 16, 2020 the Washington State Supreme Court (Washington Supreme Court) ruled that while Ecology has the authority to regulate actual emitters, it cannot regulate indirect emitters of GHG emissions. As such, it vacated the rule only as it applied to indirect sources of GHGs such as natural gas distributors and fuel suppliers. The Washington Supreme Court remanded the case to the Superior Court to determine how to separate the rule. The impact to our GTN assets is being evaluated
Pennsylvania: The Pennsylvania Department of Environmental Protection has an LDAR program for new source installations which require leak repair within 15 days of discovery
Maryland: Effective November 16, 2020, the Maryland Department of the Environment (MDE) finalized a methane regulation program for new and existing natural gas facilities that includes an LDAR program, emission control and reporting requirements, plus a requirement to notify not only the MDE, but also the public of any events above a specific threshold. We have one electric-powered compressor station and associated pipeline segments impacted by this regulation.
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Mexico jurisdictions
the General Climate Change Law (LGCC) establishes various public policy instruments, including the National Emissions Registry (RENE) and its regulations, which allow for the compilation of information on the emission of compounds and greenhouse gases of the different productive sectors of the country. The LGCC defines the National Inventory of greenhouse gases and compounds as the document that contains the estimate of anthropogenic emissions by sources and absorption by sinks in Mexico
in 2018, the Government of Mexico published a regulation that established guidelines for the prevention and control of methane emissions from the hydrocarbon sector. Companies are required to prepare a Program for the Comprehensive Prevention and Control of Methane Emissions (PPCIEM) which includes identification of sources of methane, quantification of baseline emissions, and an estimate of the expected emission reductions from prevention and control activities. This regulation requires the PPCIEM, through which operational and technological practices are adopted, to determine a reduction goal that must be met within a period not exceeding six calendar years from the delivery of the PPCIEM. TC Energy developed and applied the PPCIEM to all of its facilities in Mexico in second quarter 2020
in 2019, the Secretariat of Environment and Natural Resources published an agreement to progressively and gradually establish an emissions commerce system in Mexico and comply with the LGCC. It will function as a three-year pilot from 2020 to 2022 that allows the Secretariat to test the design and rules of the system as well as evaluate its performance and then propose adjustments for a subsequent operational phase after 2022.
Anticipated policies
Canadian jurisdictions
the Government of Canada is developing the Clean Fuel Standard (CFS) to achieve reductions in greenhouse gas emissions. In December 2020, the Canadian Federal Government unveiled its plan aimed to exceed their previous 2030 GHG-emissions reduction target of 30 per cent below 2005 levels to a new target of 32 to 40 per cent below 2005 levels with the ultimate goal of achieving net-zero GHG emissions by 2050. As part of this plan, the Federal Government narrowed the CFS scope to include only liquid fuels, which will not directly impact TC Energy. This plan also increased carbon pricing levels and released a complementary hydrogen strategy. Carbon prices increase by $15/tonne every year after 2022 to $170/tonne in 2030. While the scope of the CFS is limited to liquid fuels, there will be opportunities to generate credits for the gaseous fuel stream to incentivize emission reduction opportunities. We will continue to engage with Canadian policy makers and monitor and assess the extent of the impacts as more information is made available in early 2021.
U.S. jurisdictions
Federal: On August 6, 2020, the U.S. Senate passed the PHMSA reauthorization bill, the PIPES Act, which included methane regulations requiring, for example, pipeline owners/operators to implement methane LDAR programs, deploy advanced leak detection technology and incorporate LDAR surveys in inspection and maintenance plans. If the U.S. House of Representatives also supports the inclusion of these methane provisions, PHMSA will join the EPA as another federal regulator of GHG emissions, indicating the nation's increasing desire to combat climate change. The expected impact to our assets is still being evaluated
Washington: In 2019, a law was enacted that committed the state electricity grid to becoming 80 per cent fossil fuel-free by 2030 and 100 per cent by 2045. Ecology has begun rulemaking to further this goal. In Washington’s 2020 legislative session, a law was passed committing the state to becoming carbon-neutral by 2050 and strengthening intermediate reduction goals. Additionally, Ecology began rulemaking to implement the Governor’s December 2019 directive to strengthen and standardize the consideration of climate change risks, vulnerabilities and impacts in environmental assessments for major industrial and fossil fuel projects with significant environmental impacts. The impact to GTN's assets from regulations furthering these initiatives is still being evaluated
California: Our assets may be affected by the Governor of California's executive order, issued September 23, 2020, requiring all new cars and light trucks sold in California to be emission-free by 2035 and heavy and medium trucks to be emission-free by 2045 since a significant number of vehicles in California are currently powered by natural gas. The significance of the impact on our assets is still being evaluated
Oregon: In March 2020, the Governor of Oregon issued an executive order to reduce and regulate GHGs by establishing annual reduction goals developing a new carbon cap and reduce program and enhancing clean fuel standards by January 1, 2022. Oregon has begun rulemaking to implement this executive order and we are assessing which of our GTN facilities in Oregon will be impacted. On July 31, 2020, a lawsuit was filed by a coalition of business and trade groups, including Oregon Business & Industry, challenging the executive order
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Michigan: The Michigan Department of Environment, Great Lakes, and Energy is currently evaluating potential ozone control strategies for the southeast Michigan ozone non-attainment area and the interaction of methane and ozone, which may lead to the development of laws and regulations that affect TC Energy through impacted ANR and Great Lakes facilities in the state
New York: On August 14, 2020, New York’s Department of Environmental Conservation (NY DEC) released its proposed GHG reduction regulations, implementing the Climate Leadership and Community Protection Act, which directed the NY DEC to adopt GHG limits for all state emission sources. The proposed regulations require a reduction in GHGs equal to 60 per cent of the 1990 GHG emission levels by 2030 and to 15 per cent of the 1990 GHG emission levels by 2050. The proposed regulation does not include any compliance requirements and, as such, the impact to our assets cannot yet be measured.
Financial risks
We are exposed to market risk and counterparty credit risk and have strategies, policies and limits in place to manage the impact of these risks on our earnings, cash flows and, ultimately, shareholder value.
Risk management strategies, policies and limits are designed to ensure our risks and related exposures are in line with our business objectives and risk tolerance. Market risk and counterparty credit risk are managed within limits that are established by our Board of Directors, implemented by senior management and monitored by our risk management and internal audit groups. Our Board of Directors' Audit Committee oversees how management monitors compliance with market risk and counterparty credit risk management policies and procedures and oversees management's review of the adequacy of the risk management framework.
Market risk
We construct and invest in energy infrastructure projects, purchase and sell commodities, issue short-term and long-term debt, including amounts in foreign currencies, and invest in foreign operations. Certain of these activities expose us to market risk from changes in commodity prices, foreign exchange rates and interest rates, which may affect our earnings and the value of our financial assets and liabilities. We assess contracts used to manage market risk to determine whether all, or a portion, meet the definition of a derivative.
Derivative contracts used to assist in managing exposure to market risk may include the following:
forwards and futures contracts – agreements to purchase or sell a specific financial instrument or commodity at a specified price and date in the future
swaps – agreements between two parties to exchange streams of payments over time according to specified terms
options – agreements that convey the right, but not the obligation of the purchaser, to buy or sell a specific amount of a financial instrument or commodity at a fixed price, either at a fixed date or at any time within a specified period.
Commodity price risk
The following strategies may be used to manage exposure to commodity price risk in our non-regulated businesses:
in our natural gas marketing business, we enter into natural gas transportation and storage contracts as well as natural gas purchase and sale agreements. We manage our exposure on these contracts using financial instruments and hedging activities to offset market price volatility
in our liquids marketing business, we enter into pipeline and storage terminal capacity contracts as well as crude oil purchase and sale agreements. We fix a portion of our exposure on these contracts by entering into financial instruments to manage variable price fluctuations that arise from physical liquids transactions
in our power generation business, we manage our exposure to fluctuating commodity prices through long-term contracts and hedging activities including selling and purchasing power and natural gas in forward markets
in our non-regulated natural gas storage business, our exposure to seasonal natural gas price spreads is managed with a portfolio of third-party storage capacity contracts and through offsetting purchases and sales of natural gas in forward markets to lock in future positive margins.
The following risks affect our company across all of our operations and are being continuously monitored.
Lower natural gas, crude oil and electricity prices could lead to reduced investment in the development, expansion and production of these commodities. A reduction in the supply of these commodities could negatively impact opportunities to expand our asset base and re-contract with our shippers and customers as their contractual agreements expire.
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Climate change also presents a potential financial impact to commodity prices and volumes. Our exposure to climate change risk and resulting policy changes is managed through our business model which is based on a long-term, low-risk strategy whereby the majority of our earnings are underpinned by regulated cost-of-service arrangements and long-term contracts. In addition, scenario planning against several demand outlooks and monitoring of key signposts is also considered as part of our long-term corporate strategic planning process.
Interest rate risk
We utilize short-term and long-term debt to finance our operations which exposes us to interest rate risk. We typically pay fixed rates of interest on our long-term debt and floating rates on our commercial paper programs and amounts drawn on our credit facilities. A small portion of our long-term debt bears interest at floating rates. In addition, we are exposed to interest rate risk on financial instruments and contractual obligations containing variable interest rate components. We actively manage our interest rate risk using interest rate derivatives.
Many of our financial instruments and contractual obligations with variable rate components reference LIBOR, of which certain rate settings may cease to be published at the end of 2021 with full cessation expected by mid-2023. We continue to monitor developments and are preparing to address any necessary system and contractual changes while assessing the adoption of the standard market proposed reference rates. This includes identifying and analyzing existing agreements to determine the effect of reference rate reform on our consolidated financial statements.
Foreign exchange risk
We generate revenues and incur expenses and capital expenditures that are denominated in currencies other than Canadian dollars. As a result, our earnings and cash flows are exposed to currency fluctuations.
A significant portion of our businesses generate earnings in U.S. dollars, but since we report our financial results in Canadian dollars, changes in the value of the U.S. dollar against the Canadian dollar can affect our net income. As our U.S. dollar-denominated operations continue to grow, this exposure increases. A portion of this risk is offset by interest expense on U.S. dollar-denominated debt. The balance of the exposure is actively managed on a rolling two-year basis using foreign exchange derivatives, however, the natural exposure beyond that period remains.
Average exchange rate – U.S. to Canadian dollars
The average exchange rate for one U.S. dollar converted into Canadian dollars was as follows:
20201.34 
20191.33 
20181.30 
The impact of changes in the value of the U.S. dollar on our U.S. and Mexico operations, which are primarily U.S. dollar-denominated, is partially offset by interest on U.S. dollar-denominated debt as set out in the table below. Comparable EBIT is a non-GAAP measure. Refer to the Reconciliation of non-GAAP measures section for more information.
Significant U.S. dollar-denominated amounts
year ended December 31
(millions of US$)202020192018
U.S. Natural Gas Pipelines comparable EBIT2,117 2,055 1,830 
Mexico Natural Gas Pipelines comparable EBIT1
579 481 486 
U.S. Liquids Pipelines comparable EBIT762 1,127 876 
Interest on U.S. dollar-denominated long-term debt and junior subordinated notes(1,302)(1,326)(1,325)
Capitalized interest on U.S. dollar-denominated capital expenditures131 34 15 
U.S. dollar-denominated allowance for funds used during construction182 205 326 
U.S. dollar comparable non-controlling interests and other(248)(233)(264)
2,221 2,343 1,944 
1Excludes interest expense on our inter-affiliate loan with Sur de Texas which is fully offset in Interest income and other.
96 | TC Energy Management's discussion and analysis 2020


We hedge a portion of our net investment in foreign operations (on an after-tax basis) with U.S. dollar-denominated debt, cross-currency swaps and foreign exchange options.
A small portion of our Mexico Natural Gas Pipelines monetary assets and liabilities are peso-denominated, while the functional currency for our Mexico operations is U.S. dollars. These peso-denominated balances are revalued to U.S. dollars and, as a result, changes in the value of the Mexican peso against the U.S. dollar can affect our net income. This exposure is managed using foreign exchange derivatives.
Counterparty credit risk
We have exposure to counterparty credit risk in a number of areas including:
cash and cash equivalents
accounts receivable
available-for-sale assets
the fair value of derivative assets
loans receivable.
The sustained impact of the COVID-19 pandemic and related global energy demand and supply disruption continues to contribute to market uncertainty impacting a number of our customers. While the majority of our credit exposure is to large creditworthy entities, we have increased our monitoring of and communication with those counterparties experiencing greater financial pressures due to recent market events. Although counterparty credit risk has heightened and the long-term impacts of COVID-19 and related disruptions on our customers are difficult to predict, we are not expecting a material negative impact to our 2021 earnings or cash flows as a result of this increased risk.
At times, our counterparties may endure financial challenges resulting from commodity price and market volatility, economic instability and political or regulatory changes. In addition to actively monitoring these situations, there are a number of factors that reduce our counterparty credit risk exposure in the event of default, including:
contractual rights and remedies together with the utilization of contractually-based financial assurances
current regulatory frameworks governing certain of our operations
the competitive position of our assets and the demand for our services
potential recovery of unpaid amounts through bankruptcy and similar proceedings.
We review financial assets carried at amortized cost for impairment using the lifetime expected loss of the financial asset at initial recognition and throughout the life of the financial asset. We use historical credit loss and recovery data, adjusted for our judgment regarding current economic and credit conditions, along with supportable forecasts to determine any impairment, which is recognized in Plant operating costs and other. At December 31, 2020 and 2019, we had no significant credit losses, no significant credit risk concentrations and no significant amounts past due or impaired.
We have significant credit and performance exposure to financial institutions because they hold cash deposits and provide committed credit lines and letters of credit that help manage our exposure to counterparties and provide liquidity in commodity, foreign exchange and interest rate derivative markets.
Liquidity risk
Liquidity risk is the risk that we will not be able to meet our financial obligations as they come due. We manage our liquidity by continuously forecasting our cash flows and ensuring we have adequate cash balances, cash flows from operations, committed and demand credit facilities and access to capital markets to meet our operating, financing and capital expenditure obligations under both normal and stressed economic conditions. There have been periods of heightened global market volatility and reduced liquidity during 2020 but we have taken steps to further strengthen our financial condition and mitigate our exposure to these risks. Refer to the Financial condition section for more information about our liquidity.
Legal proceedings
Legal proceedings, arbitrations and actions are part of doing business. While we cannot predict the final outcomes of proceedings and actions with certainty, management does not expect any current or potential legal proceeding or action to have a material impact on our consolidated financial position or results of operations.
TC Energy Management's discussion and analysis 2020 | 97


CONTROLS AND PROCEDURES
We meet Canadian and U.S. regulatory requirements for disclosure controls and procedures, internal control over financial reporting and related CEO and CFO certifications.
Disclosure controls and procedures
Under the supervision and with the participation of management, including our President and CEO and our CFO, we carried out quarterly evaluations of the effectiveness of our disclosure controls and procedures, including for the year ended December 31, 2020, as required by the Canadian securities regulatory authorities and by the SEC. Based on this evaluation, our President and CEO and our CFO have concluded that the disclosure controls and procedures are effective in that they are designed to ensure that the information we are required to disclose in reports we file with or send to securities regulatory authorities is recorded, processed, summarized and reported accurately within the time periods specified under Canadian and U.S. securities laws.
Management’s annual report on internal control over financial reporting
We are responsible for establishing and maintaining adequate internal control over financial reporting, which is a process designed by, or under the supervision of, our President and CEO and our CFO, and effected by our Board of Directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP.
Under the supervision and with the participation of management, including our President and CEO and our CFO, an evaluation of the effectiveness of the internal control over financial reporting was conducted as of December 31, 2020, based on the criteria described in “Internal Control – Integrated Framework” issued in 2013 by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, management determined that, as of December 31, 2020, the internal control over financial reporting was effective.
Our internal control over financial reporting as of December 31, 2020 has been audited by KPMG LLP, an independent registered public accounting firm, as stated in their attestation report which is included in this document.
CEO and CFO certifications
Our President and CEO and our CFO have attested to the quality of the public disclosure in our fiscal 2020 reports filed with Canadian securities regulators and the SEC and have filed certifications with them.
Changes in internal control over financial reporting
There were no changes during the year covered by this annual report that had or are reasonably likely to have a material impact on our internal control over financial reporting.
98 | TC Energy Management's discussion and analysis 2020


CRITICAL ACCOUNTING ESTIMATES
When we prepare financial statements that conform with GAAP, we are required to make estimates and assumptions that affect the timing and amounts we record for our assets, liabilities, revenues and expenses because these items may be affected by future events. We base the estimates and assumptions on the most current information available, using our best judgment. We also regularly assess the assets and liabilities themselves.
The following accounting estimates require us to make significant assumptions based on factors that are either subjective or highly uncertain when preparing our financial statements and changes in these assumptions could have a material impact on the financial statements. Our accounting policies disclose the critical accounting estimates we make when preparing our financial statements.
Impairment of long-lived assets and goodwill
We review long-lived assets, such as plant, property and equipment, equity investments, goodwill and capital projects in development, for impairment whenever events or changes in circumstances lead us to believe we might not be able to recover an asset's carrying value. Factors we consider in our assessment of the recoverability of long-lived assets include, but are not limited to, macroeconomic conditions, changes in the industries and markets in which we operate, our ability to renew contracts, and the financial performance and prospects of our assets. If the total of the undiscounted future cash flows that we estimate for an asset within Property, plant and equipment, or the estimated selling price of any long-lived asset is less than its carrying value, we consider its fair value to be less than its carrying value and record an impairment loss to recognize this. For goodwill, if the fair value of the reporting unit determined using discounted cash flows is less than its carrying value, including goodwill, we consider it to be impaired.
In 2020 and 2019, no impairments were recorded.
In 2018, the following impairments were recorded:
a $722 million pre-tax impairment of the carrying value of Bison's plant, property and equipment ($140 million after tax and net of non-controlling interests)
a $79 million pre-tax impairment of the carrying value of Tuscarora's goodwill ($15 million after tax and net of non-controlling interests).
Long-lived assets
Bison
In December 2018, we evaluated our investment in the Bison natural gas pipeline for impairment in connection with the termination of certain customer transportation agreements. With the loss of these contracted future cash flows, and the persistence of unfavourable market conditions which have inhibited system flows on the pipeline, we determined that the asset’s remaining carrying value was no longer recoverable and recognized a non-cash impairment charge of $722 million in the U.S. Natural Gas Pipelines segment. Our share of the impairment charge, after tax and net of non-controlling interests, was $140 million.
Goodwill
We test goodwill for impairment annually or more frequently if events or changes in circumstances lead us to believe it might be impaired. We can initially assess qualitative factors which include, but are not limited to, macroeconomic conditions, industry and market considerations, current valuation multiples and discount rates, cost factors, historical and forecasted financial results, or events specific to that reporting unit. If we conclude that it is not more likely than not that the fair value of the reporting unit is greater than its carrying value, we will then perform a quantitative goodwill impairment test. We can elect to proceed directly to the quantitative goodwill impairment test for any reporting unit. If the quantitative goodwill impairment test is performed, we compare the fair value of the reporting unit to its carrying value, including its goodwill. If the carrying value of a reporting unit exceeds its fair value, goodwill impairment is measured at the amount by which the reporting unit’s carrying value exceeds its fair value.
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When a portion of a reporting unit that constitutes a business is disposed, goodwill associated with that business is included in the carrying amount of the business in determining the gain or loss on disposal. The amount of goodwill disposed is determined based on the relative fair values of the business to be disposed and the portion of the reporting unit that will be retained. In August 2019, we completed the sale of certain Columbia Midstream assets to a third party. As these assets constituted a business within the Columbia reporting unit, $595 million of Columbia's goodwill allocated to these assets was released and netted in the gain on sale.
We determine the fair value of a reporting unit based on our projections of future cash flows, which involves making estimates and assumptions about transportation rates, market supply and demand, growth opportunities, output levels, competition from other companies, operating costs, regulatory changes, discount rates and earnings and other multiples.
As part of the annual goodwill impairment assessment, we evaluated qualitative factors impacting the fair value of the reporting units. It was determined that it was more likely than not that the fair value of the reporting units exceeded their carrying amounts, including goodwill, and therefore, goodwill was not impaired.
Tuscarora
In fourth quarter 2018, we determined that the fair value of Tuscarora did not exceed its carrying value, including goodwill, and recorded a goodwill impairment charge of $79 million within the U.S. Natural Gas Pipelines segment. Our share of the goodwill impairment charge, after tax and net of non-controlling interests, was $15 million. Our share of the remaining goodwill balance related to Tuscarora, net of non-controlling interests, was US$6 million at December 31, 2020 (2019 – US$6 million).
FINANCIAL INSTRUMENTS
We use derivative instruments to reduce volatility associated with fluctuations in commodity prices, interest rates and foreign exchange rates. Derivative instruments, including those that qualify and are designated for hedge accounting treatment, are recorded at fair value. 
The majority of derivative instruments that are not designated or do not qualify for hedge accounting treatment have been entered into as economic hedges to manage our exposure to market risk and are classified as held for trading. Changes in the fair value of held-for-trading derivative instruments are recorded in net income in the period of change. This may expose us to increased variability in reported operating results since the fair value of the held-for-trading derivative instruments can fluctuate significantly from period to period.
The recognition of gains and losses on derivatives for Canadian natural gas regulated pipeline exposures is determined through the regulatory process. Gains and losses arising from changes in the fair value of derivatives accounted for as part of RRA, including those that qualify for hedge accounting treatment, are expected to be recovered or refunded through the tolls charged by us. As a result, these gains and losses are deferred as regulatory assets or regulatory liabilities and are refunded to or collected from the ratepayers in subsequent years when the derivative settles.
Balance sheet presentation of derivative instruments
The balance sheet presentation of the fair value of derivative instruments is as follows:
at December 31
(millions of $)20202019
Other current assets235 190 
Other long-term assets41 
Accounts payable and other(72)(115)
Other long-term liabilities(59)(81)
145 
100 | TC Energy Management's discussion and analysis 2020


Anticipated timing of settlement of derivative instruments
The anticipated timing of settlement of derivative instruments assumes constant commodity prices, interest rates and foreign exchange rates. Settlements will vary based on the actual value of these factors at the date of settlement.
at December 31, 2020Total fair value< 1 year1 - 3 years4 - 5 years> 5 years
(millions of $)
Derivative instruments held for trading    
Assets
207 188 19 — — 
Liabilities
(46)(42)— — (4)
Derivative instruments in hedging relationships
Assets
69 47 13 — 
Liabilities
(85)(30)(41)(13)(1)
 145 163 (9)(4)(5)
Unrealized and realized (losses)/ gains on derivative instruments
The following summary does not include hedges of our net investment in foreign operations.
year ended December 31
(millions of $)202020192018
Derivative instruments held for trading1
Amount of unrealized (losses)/ gains in the year
  Commodities(23)(111)28 
  Foreign exchange126 245 (248)
Amount of realized gains /(losses) in the year
  Commodities183 378 351 
  Foreign exchange(33)(70)(24)
Derivative instruments in hedging relationships2
Amount of realized gains /(losses) in the year
  Commodities6 (6)(1)
  Interest rate(16)(1)
1Realized and unrealized gains and losses on held-for-trading derivative instruments used to purchase and sell commodities are included on a net basis in Revenues. Realized and unrealized gains and losses on interest rate and foreign exchange held-for-trading derivative instruments are included on a net basis in Interest income and other.
2There were no gains or losses included in net income relating to discontinued cash flow hedges where it was probable that the anticipated transaction would not occur.
For further details on our non-derivative and derivative financial instruments, including classification assumptions made in the calculation of fair value and additional discussion of exposure to risks and mitigation activities, refer to Note 25, Risk management and financial instruments, of our 2020 Consolidated financial statements.
RELATED PARTY TRANSACTIONS
Loans receivable from affiliates
Related party transactions are conducted in the normal course of business and are measured at the exchange amount, which is the amount of consideration established and agreed to by the related parties.
Coastal GasLink LP
In conjunction with the Coastal GasLink LP equity sale on May 22, 2020, we entered into a subordinated demand revolving credit facility with Coastal GasLink LP, which had a capacity of $200 million at December 31, 2020. This facility provides additional short-term liquidity and funding flexibility to the project and bears interest at a floating market-based rate. At December 31, 2020, there were no amounts outstanding on this facility. Refer to the notes to our 2020 Consolidated financial statements for additional information.
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Sur de Texas
At December 31, 2020, the Loan receivable from affiliate on our Consolidated balance sheet reflected MXN$20.9 billion or $1.3 billion (2019 – MXN$20.9 billion or $1.4 billion), being our 60 per cent proportionate share of long-term debt financing to the Sur de Texas joint venture. Our Consolidated statement of income reflects the related interest income and foreign exchange impact on this loan receivable which are fully offset upon consolidation with corresponding amounts included in our 60 per cent proportionate share of Sur de Texas equity earnings as follows:
year ended December 31Affected line item in the Consolidated statement of income
(millions of $)202020192018
Interest income1
110 147 120 Interest income and other
Interest expense2
(110)(147)(120)Income from equity investments
Foreign exchange (losses)/ gains1
(86)53 (5)Interest income and other
Foreign exchange gains /(losses)1
86 (53)Income from equity investments
1Included in our Corporate segment.
2Included in our Mexico Natural Gas Pipelines segment.
ACCOUNTING CHANGES
For a description of our significant accounting policies and a summary of changes in accounting policies and standards impacting our business, refer to Note 2, Accounting policies, and Note 3, Accounting changes, of our 2020 Consolidated financial statements.
102 | TC Energy Management's discussion and analysis 2020


QUARTERLY RESULTS
Selected quarterly consolidated financial data
(millions of $, except per share amounts)
2020FourthThirdSecondFirst
Revenues3,297 3,195 3,089 3,418 
Net income attributable to common shares1,124 904 1,281 1,148 
Comparable earnings1,080 893 863 1,109 
Share statistics:    
Net income per common share – basic and diluted$1.20 $0.96 $1.36 $1.22 
Comparable earnings per common share $1.15 $0.95 $0.92 $1.18 
Dividends declared per common share
$0.81 $0.81 $0.81 $0.81 
2019FourthThirdSecondFirst
Revenues3,263 3,133 3,372 3,487 
Net income attributable to common shares1,108 739 1,125 1,004 
Comparable earnings 970 970 924 987 
Share statistics:    
Net income per common share – basic and diluted$1.18 $0.79 $1.21 $1.09 
Comparable earnings per common share $1.03 $1.04 $1.00 $1.07 
Dividends declared per common share
$0.75 $0.75 $0.75 $0.75 
Factors affecting quarterly financial information by business segment
Quarter-over-quarter revenues and net income fluctuate for reasons that vary across our business segments.
In our Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines and Mexico Natural Gas Pipelines segments, except for seasonal fluctuations in short-term throughput volumes on U.S. pipelines, quarter-over-quarter revenues and net income generally remain relatively stable during any fiscal year. Over the long term, however, they fluctuate because of:
regulators' decisions
negotiated settlements with shippers
newly constructed assets being placed in service
acquisitions and divestitures
developments outside of the normal course of operations.
In Liquids Pipelines, annual revenues and net income are based on contracted and uncommitted spot transportation as well as liquids marketing activities. Quarter-over-quarter revenues and net income are affected by:
regulatory decisions
newly constructed assets being placed in service
acquisitions and divestitures
demand for uncontracted transportation services
liquids marketing activities and commodity prices
developments outside of the normal course of operations
certain fair value adjustments.
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In Power and Storage, quarter-over-quarter revenues and net income are affected by:
weather
customer demand
newly constructed assets being placed in service
acquisitions and divestitures
market prices for natural gas and power
capacity prices and payments
planned and unplanned plant outages
developments outside of the normal course of operations
certain fair value adjustments.
Factors affecting financial information by quarter
We calculate comparable measures by adjusting certain GAAP and non-GAAP measures for specific items we believe are significant but not reflective of our underlying operations in the period.
Comparable earnings exclude the unrealized gains and losses from changes in the fair value of certain derivatives used to reduce our exposure to certain financial and commodity price risks. These derivatives generally provide effective economic hedges, but do not meet the criteria for hedge accounting. As a result, the changes in fair value are recorded in net income. As these amounts do not accurately reflect the gains and losses that will be realized at settlement, we do not consider them part of our underlying operations. We also exclude the unrealized foreign exchange gains and losses on the Loan receivable from affiliate as well as the corresponding proportionate share of Sur de Texas foreign exchange gains and losses, as these amounts do not accurately reflect the gains and losses that will be realized at settlement. These amounts offset within each reporting period, resulting in no impact on net income.
In fourth quarter 2020, comparable earnings also excluded:
an income tax valuation allowance release of $18 million related to certain prior years' U.S. tax losses resulting from our reassessment of deferred tax assets that are more likely than not to be realized
an additional $18 million income tax recovery related to state income taxes on the sale of certain Columbia Midstream assets in 2019
an incremental after-tax loss of $81 million for the three months ended December 31, 2020 related to the sale of our Ontario natural gas-fired power plants.
In third quarter 2020, comparable earnings also excluded:
an incremental after-tax loss of $45 million related to the sale of the Ontario natural gas-fired power plants
a $6 million reduction in the after-tax gain related to the sale of a 65 per cent equity interest in Coastal GasLink LP.
In second quarter 2020, comparable earnings also excluded:
an after-tax gain for $408 million related to the sale of a 65 per cent equity interest in Coastal GasLink LP
an incremental after-tax loss of $80 million related to the sale of the Ontario natural gas-fired power plants.
In first quarter 2020, comparable earnings also excluded:
an income tax valuation allowance release of $281 million following our reassessment of deferred tax assets that are deemed more likely than not to be realized as a result of our decision to proceed with the Keystone XL project
an incremental after-tax loss of $77 million related to the Ontario natural gas-fired power plant assets held for sale.
In fourth quarter 2019, comparable earnings also excluded:
an income tax valuation allowance release of $195 million related to certain prior years' U.S. tax losses resulting from our reassessment of deferred tax assets that are more likely than not to be realized
an incremental after-tax loss of $61 million related to the Ontario natural gas-fired power plant assets held for sale
an additional $19 million income tax expense related to state income taxes on the sale of certain Columbia Midstream assets.
In third quarter 2019, comparable earnings also excluded:
an after-tax loss of $133 million related to the Ontario natural gas-fired power plant assets held for sale
an after-tax loss of $133 million related to the sale of certain Columbia Midstream assets
an after-tax gain of $115 million related to the partial sale of Northern Courier.
104 | TC Energy Management's discussion and analysis 2020


In second quarter 2019, comparable earnings also excluded:
an after-tax gain of $54 million related to the sale of our Coolidge generating station
a deferred tax benefit of $32 million related to the impact of an Alberta corporate income tax rate reduction on our Canadian businesses not subject to RRA
an after-tax gain of $6 million related to the remainder of our U.S. Northeast power marketing contracts.
In first quarter 2019, comparable earnings also excluded:
an after-tax loss of $12 million related to our U.S. Northeast power marketing contracts.
FOURTH QUARTER 2020 HIGHLIGHTS
Consolidated results
three months ended December 31 20202019
(millions of $, except per share amounts)
Canadian Natural Gas Pipelines350 321 
U.S. Natural Gas Pipelines730 666 
Mexico Natural Gas Pipelines137 136 
Liquids Pipelines300 355 
Power and Storage43 102 
Corporate(150)(69)
Total segmented earnings1,410 1,511 
Interest expense(530)(586)
Allowance for funds used during construction95 117 
Interest income and other373 210 
Income before income taxes1,348 1,252 
Income tax expense(116)(27)
Net income1,232 1,225 
Net income attributable to non-controlling interests(69)(76)
Net income attributable to controlling interests1,163 1,149 
Preferred share dividends(39)(41)
Net income attributable to common shares1,124 1,108 
Net income per common share – basic and diluted$1.20 $1.18 
Net income attributable to common shares increased by $16 million or $0.02 per common share for the three months ended December 31, 2020 compared to the same period in 2019. Net income per common share reflects the dilutive impact of common shares issued under our DRP in 2019.
Fourth quarter 2020 results included:
an income tax valuation allowance release of $18 million related to certain prior years' U.S. tax losses resulting from our reassessment of deferred tax assets that are more likely than not to be realized
an additional $18 million income tax recovery related to state income taxes on the sale of certain Columbia Midstream assets in 2019
an incremental after-tax loss of $81 million for the three months ended December 31, 2020 related to the sale of our Ontario natural gas-fired power plants on April 29, 2020.
Fourth quarter 2019 results included:
an income tax valuation allowance release of $195 million related to certain prior years' U.S. tax losses resulting from our reassessment of deferred tax assets that are more likely than not to be realized
an additional $19 million income tax expense related to state income taxes on the sale of certain Columbia Midstream assets
an incremental after-tax loss of $61 million related to the Ontario natural gas-fired power plant assets held for sale.

TC Energy Management's discussion and analysis 2020 | 105


Net income in all periods included unrealized gains and losses from changes in risk management activities which we exclude, along with the above noted items, to arrive at comparable earnings. A reconciliation of net income attributable to common shares to comparable earnings is shown in the following table.
Reconciliation of net income to comparable earnings
three months ended December 31 20202019
(millions of $, except per share amounts)
Net income attributable to common shares1,124 1,108 
Specific items (net of tax):
Loss on sale of Ontario natural gas-fired power plants81 61 
Loss on sale of Columbia Midstream assets(18)19 
Income tax valuation allowance release(18)(195)
Risk management activities1
(89)(23)
Comparable earnings1,080 970 
Net income per common share$1.20 $1.18 
Specific items (net of tax):
Loss on sale of Ontario natural gas-fired power plants0.08 0.07 
Loss on sale of Columbia Midstream assets(0.02)0.02 
Income tax valuation allowance release(0.02)(0.21)
Risk management activities1
(0.09)(0.03)
Comparable earnings per common share$1.15 $1.03 
1three months ended December 3120202019
(millions of $)
Liquids marketing(25)(36)
 Canadian power(1)
 Natural gas storage(5)(3)
 Foreign exchange150 69 
 Income taxes attributable to risk management activities(30)(8)
 Total unrealized gains from risk management activities89 23 


106 | TC Energy Management's discussion and analysis 2020


Comparable EBITDA to comparable earnings
Comparable EBITDA represents segmented earnings adjusted for certain aspects of the specific items described above and excludes non-cash charges for depreciation and amortization.
three months ended December 31
(millions of $, except per share amounts)20202019
Comparable EBITDA
Canadian Natural Gas Pipelines682 618 
U.S. Natural Gas Pipelines919 855 
Mexico Natural Gas Pipelines166 165 
Liquids Pipelines408 472 
Power and Storage161 210 
Corporate(13)(5)
Comparable EBITDA2,323 2,315 
Depreciation and amortization(652)(625)
Interest expense (530)(586)
Allowance for funds used during construction95 117 
Interest income and other included in comparable earnings86 77 
Income tax expense included in comparable earnings(134)(211)
Net income attributable to non-controlling interests(69)(76)
Preferred share dividends(39)(41)
Comparable earnings1,080 970 
Comparable earnings per common share$1.15 $1.03 
Comparable EBITDA – 2020 versus 2019
Comparable EBITDA increased by $8 million for the three months ended December 31, 2020 compared to the same period in 2019 primarily due to the net effect of the following:
increased earnings from U.S. Natural Gas Pipelines mainly attributable to lower operating costs
higher comparable EBITDA from Canadian Natural Gas Pipelines due to the impact of increased rate-base earnings, flow-through depreciation from additional facilities placed in service as well as higher financial charges on the NGTL System plus Coastal GasLink development fee revenue recognized in 2020, partially offset by a decrease in flow-through income taxes on the NGTL System and Canadian Mainline
lower contribution from Liquids Pipelines primarily attributable to reduced margins from our liquids marketing activities
decreased contribution from Power and Storage primarily due to the net impact of lower Bruce Power earnings in 2020 reflecting the commencement of the Unit 6 MCR program on January 17, 2020, partially offset by fewer outage days on the remaining units, the sale of our Ontario natural gas-fired power plants on April 29, 2020, and improved results from our Alberta cogeneration plants
foreign exchange impact of a weaker U.S. dollar on the Canadian dollar equivalent earnings from our U.S. dollar-denominated operations.
Due to the flow-through treatment of certain expenses including income taxes, financial charges and depreciation on our Canadian rate-regulated pipelines, changes in these items impact our comparable EBITDA despite having no significant effect on net income.
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Comparable earnings – 2020 versus 2019
Comparable earnings increased by $110 million or $0.12 per common share for the three months ended December 31, 2020 compared to the same period in 2019 and was primarily the net effect of:
changes in comparable EBITDA described above
a decrease in income tax expense mainly attributable to lower flow-through income taxes on Canadian rate-regulated pipelines and higher foreign tax rate differentials
a decrease in interest expense primarily due to higher capitalized interest related to Keystone XL, partially offset by the completion of Napanee construction in first quarter 2020 and the application of equity accounting to our Coastal GasLink LP investment upon the sale of a 65 per cent interest in the project in May 2020. The reduction in interest expense was also a result of lower interest rates on short-term borrowings and the foreign exchange impact of a weaker U.S. dollar on translation of U.S. dollar-denominated interest
higher Interest income and other primarily related to derivatives used to manage our net exposure to foreign exchange rate fluctuations on U.S. dollar denominated income
lower AFUDC primarily due to NGTL System expansion projects placed in service and the suspension of recording AFUDC on the Tula project, partially offset by Columbia Gas growth projects
higher depreciation in Canadian Natural Gas Pipelines reflecting new assets placed in service as discussed above, partially offset by lower depreciation in Power and Storage mainly due to a 2019 reassessment of the useful life of certain components at our Alberta cogeneration plants.
Comparable earnings per share reflected the dilutive impact of common shares issued under our DRP in 2019.
Highlights by business segment
Canadian Natural Gas Pipelines
Canadian Natural Gas Pipelines segmented earnings increased by $29 million for the three months ended December 31, 2020 compared to the same period in 2019.
Net income for the NGTL System increased by $17 million for the three months ended December 31, 2020 compared to the same period in 2019 mainly due to a higher average investment base resulting from continued system expansions. On August 17, 2020, the CER approved the NGTL System's 2020-2024 Revenue Requirement Settlement Application. This settlement, which is effective from January 1, 2020 to December 31, 2024, includes an ROE of 10.1 per cent on 40 per cent deemed equity, provides the NGTL System the opportunity to increase depreciation rates if tolls fall below pre-determined levels and includes an incentive mechanism for certain operating costs where variances from projected amounts are shared between the NGTL System and its customers. It also includes a mechanism to review the settlement should tolls exceed a pre-determined level, without affecting the equity return. The NGTL System’s 2019 results reflected the 2018-2019 Revenue Requirement Settlement that expired on December 31, 2019 which included an ROE of 10.1 per cent on 40 per cent deemed common equity, a mechanism for sharing variances above and below a fixed annual OM&A amount and flow-through treatment of all other costs.
Net income for the Canadian Mainline decreased by $2 million for the three months ended December 31, 2020 compared to the same period in 2019.
Comparable EBITDA for Canadian Natural Gas Pipelines increased by $64 million for the three months ended December 31, 2020 compared to the same period in 2019 due to the net effect of:
increased rate-base earnings and flow-through depreciation on the NGTL System due to additional facilities placed in service as well as higher flow-through financial charges
Coastal GasLink development fee revenue recognized in 2020
lower flow-through income taxes on the NGTL System and the Canadian Mainline.
Depreciation and amortization increased by $35 million for the three months ended December 31, 2020 compared to the same period in 2019 mainly due to additional NGTL System facilities placed in service in 2020.
U.S. Natural Gas Pipelines
U.S. Natural Gas Pipelines segmented earnings and comparable EBIT increased by $64 million for the three months ended December 31, 2020 compared to the same period in 2019. A weaker U.S. dollar in fourth quarter 2020 had a negative impact on the Canadian dollar equivalent segmented earnings from our U.S. operations compared to the same period in 2019.

108 | TC Energy Management's discussion and analysis 2020


U.S. Natural Gas Pipelines comparable EBITDA increased by US$58 million for the three months ended December 31, 2020 compared to the same period in 2019 mainly due to lower operating costs across a number of pipelines.
Depreciation and amortization increased by US$2 million for the three months ended December 31, 2020 compared to the same period in 2019 mainly due to new projects placed in service. 
Mexico Natural Gas Pipelines
Mexico Natural Gas Pipelines comparable EBIT and segmented earnings increased by $1 million for the three months ended December 31, 2020 compared to the same period in 2019. A weaker U.S. dollar in fourth quarter 2020 had a negative impact on the Canadian dollar equivalent segmented earnings from our Mexico operations compared to the same period in 2019.
Comparable EBITDA for Mexico Natural Gas Pipelines increased by US$3 million for the three months ended December 31, 2020 compared to the same period in 2019 mainly due to increased revenues.
Depreciation and amortization for the three months ended December 31, 2020 was consistent with the same period in 2019.
Liquids Pipelines
Liquids Pipelines segmented earnings decreased by $55 million for the three months ended December 31, 2020 compared to the same period in 2019 and included unrealized losses from changes in the fair value of derivatives related to our liquids marketing business which have been excluded from our calculation of comparable EBIT and comparable earnings in both periods. In addition, a weaker U.S. dollar in fourth quarter 2020 had a negative impact on the Canadian dollar equivalent segmented earnings compared to the same period in 2019.
Comparable EBITDA for Liquids Pipelines decreased by $64 million for the three months ended December 31, 2020 compared to the same period in 2019. This was primarily due to lower contributions from liquids marketing activities mainly attributable to lower margins.
Depreciation and amortization for the three months ended December 31, 2020 was comparable to the same period in 2019.
Power and Storage
Power and Storage segmented earnings decreased by $59 million for the three months ended December 31, 2020 compared to the same period in 2019 and included the following specific items which have been excluded from comparable EBIT:
a pre-tax loss of $93 million for the three months ended December 31, 2020 (pre-tax loss of $77 million for the three months ended December 31, 2019) related to the sale of our Ontario natural gas-fired power plants
unrealized losses from changes in the fair value of derivatives used to reduce our exposure to certain commodity price risks.
Comparable EBITDA for Power and Storage decreased by $49 million for the three months ended December 31, 2020 compared to the same period in 2019 primarily due to the net effect of:
the planned removal from service of Bruce Power Unit 6 on January 17, 2020 for its MCR program, partially offset by fewer planned outage days on the remaining units
lower Canadian Power earnings largely as a result of the sale of our Ontario natural gas-fired power plants on April 29, 2020, partially offset by improved results from our Alberta cogeneration plants
higher contributions from Natural Gas Storage and other primarily due to the acquisition of the remaining 50 per cent ownership of TC Turbines on November 13, 2020.
Depreciation and amortization decreased by $10 million for the three months ended December 31, 2020 primarily due to lower depreciation at our Alberta cogeneration plants due to a reassessment of the useful life of certain components performed in 2019.
Corporate
Corporate segmented losses increased by $81 million for the three months ended December 31, 2020 compared to the same period in 2019 and included foreign exchange losses on our proportionate share of peso-denominated inter-affiliate loans to the Sur de Texas joint venture from its partners. These amounts are recorded in Income from equity investments and have been excluded from our calculation of comparable EBITDA and EBIT as they are fully offset by corresponding foreign exchange gains on the inter-affiliate loan receivable included in Interest income and other.
Comparable EBITDA for Corporate decreased by $8 million for the three months ended December 31, 2020 compared to the same period in 2019 primarily due to increased corporate expenses.
TC Energy Management's discussion and analysis 2020 | 109



Glossary
Units of measure
Bbl/dBarrel(s) per day
BcfBillion cubic feet
Bcf/dBillion cubic feet per day
GWhGigawatt hours
kmKilometres
MMcf/dMillion cubic feet per day
MWMegawatt(s)
MWhMegawatt hours
PJ/dPetajoule per day
TJ/dTerajoule per day
General terms and terms related to our operations
ATMAn at-the-market program allowing us to issue common shares from treasury at the prevailing market price
bitumenA thick, heavy oil that must be diluted to flow (also see: diluent). One of the components of the oil sands, along with sand, water and clay
CEOChief Executive Officer
CFOChief Financial Officer
cogeneration facilitiesFacilities that produce both electricity and useful heat at the same time
diluentA thinning agent made up of organic compounds. Used to dilute bitumen so it can be transported through pipelines
DRPDividend Reinvestment and Share Purchase Plan
ESGEnvironmental, social and governance
EmpressA major delivery/receipt point for natural gas near the Alberta/Saskatchewan border
FIDFinal investment decision
force majeureUnforeseeable circumstances that prevent a party to a contract from fulfilling it
GHGGreenhouse gas
HSSEHealth, safety, sustainability and environment
investment baseIncludes rate base as well as assets under construction
LDCLocal distribution company
LNGLiquefied natural gas
LTAALong Term Adjustment Account
MLPMaster limited partnership
OM&AOperating, maintenance and administration
PPAPower purchase arrangement
rate baseAverage assets in service, working capital and deferred amounts used in setting of regulated rates
TOMSTC Energy's Operational Management System
TSATransportation Service Agreement
WCSBWestern Canadian Sedimentary basin

Accounting terms
AFUDCAllowance for funds used during construction
AOCIAccumulated other comprehensive (loss)/ income
FASBFinancial Accounting Standards Board (U.S.)
GAAPU.S. generally accepted accounting principles
LIBORLondon Interbank Offered Rate
RRARate-regulated accounting
ROEReturn on common equity
Government and regulatory bodies terms
CCIRCarbon Competitiveness Incentive Regulation
CERCanada Energy Regulator (formerly the National Energy Board (Canada))
CFEComisión Federal de Electricidad (Mexico)
CREComisión Reguladora de Energia, or Energy Regulatory Commission (Mexico)
ECCCEnvironment and Climate Change Canada
FERCFederal Energy Regulatory Commission (U.S.)
IESO
Independent Electricity System Operator (Ontario)
NEB
National Energy Board (Canada)
NYSENew York Stock Exchange
OBPSOutput Based Pricing System
OPEC+Organization of the Petroleum Exporting Countries plus certain other oil-exporting nations
OPGOntario Power Generation
PHMSAPipeline and Hazardous Materials Safety Administration
SECU.S. Securities and Exchange Commission
TSXToronto Stock Exchange
110 | TC Energy Management's discussion and analysis 2020
trp-20201231_d2
EXHIBIT 13.3
Management's Report on Internal Control over Financial Reporting
The consolidated financial statements and Management's Discussion and Analysis (MD&A) included in this Annual Report are the responsibility of the management of TC Energy Corporation (TC Energy or the Company) and have been approved by the Board of Directors of the Company. The consolidated financial statements have been prepared by management in accordance with United States generally accepted accounting principles (GAAP) and include amounts that are based on estimates and judgments. The MD&A is based on the Company's financial results. It compares the Company's financial and operating performance in 2020 to that in 2019, and highlights significant changes between 2019 and 2018. The MD&A should be read in conjunction with the consolidated financial statements and accompanying notes. Financial information contained elsewhere in this Annual Report is consistent with the consolidated financial statements.
Management is responsible for establishing and maintaining adequate internal control over financial reporting for the Company. Management has designed and maintains a system of internal control over financial reporting, including a program of internal audits to carry out its responsibility. Management believes these controls provide reasonable assurance that financial records are reliable and form a proper basis for the preparation of financial statements. The internal control over financial reporting includes management's communication to employees of policies that govern ethical business conduct.
Under the supervision and with the participation of the President and Chief Executive Officer and the Chief Financial Officer, management conducted an evaluation of the effectiveness of its internal control over financial reporting based on the framework in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Management concluded, based on its evaluation, that internal control over financial reporting was effective as of December 31, 2020, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external reporting purposes.
The Board of Directors is responsible for reviewing and approving the financial statements and MD&A and ensuring that management fulfills its responsibilities for financial reporting and internal control. The Board of Directors carries out these responsibilities primarily through the Audit Committee, which consists of independent, non-management directors. The Audit Committee meets with management at least five times a year and meets independently with internal and external auditors and as a group to review any significant accounting, internal control and auditing matters in accordance with the terms of the Charter of the Audit Committee, which is set out in the Annual Information Form. The Audit Committee's responsibilities include overseeing management's performance in carrying out its financial reporting responsibilities and reviewing the Annual Report, including the consolidated financial statements and MD&A, before these documents are submitted to the Board of Directors for approval. The internal and independent external auditors have access to the Audit Committee without the requirement to obtain prior management approval.
The Audit Committee approves the terms of engagement of the independent external auditors and reviews the annual audit plan, the Auditors' Report and the results of the audit. It also recommends to the Board of Directors the firm of external auditors to be appointed by the shareholders.
The shareholders have appointed KPMG LLP as independent external auditors to express an opinion as to whether the consolidated financial statements present fairly, in all material respects, the Company's consolidated financial position, results of operations and cash flows in accordance with GAAP. The reports of KPMG LLP outline the scope of its examinations and its opinions on the consolidated financial statements and the effectiveness of the Company's internal control over financial reporting.
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Francois L. Poirier
President and
Chief Executive Officer
 
Donald R. Marchand
Executive Vice-President, Strategy & Corporate Development and
Chief Financial Officer
February 17, 2021  
TC Energy Consolidated Financial Statements 2020 | 111


Report of Independent Registered Public Accounting Firm
To the Shareholders of TC Energy Corporation
Opinion on the Consolidated Financial Statements
We have audited the accompanying consolidated balance sheets of TC Energy Corporation (the Company) as of December 31, 2020 and 2019, the related consolidated statements of income, comprehensive income, cash flows, and equity for each of the years in the three-year period ended December 31, 2020, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2020, and 2019, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2020, in conformity with U.S. generally accepted accounting principles.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 17, 2021 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.
Basis for Opinion
These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matter
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the Audit Committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements; and (2) involved our especially challenging, subjective or complex judgment. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Qualitative goodwill impairment indicators
As discussed in Note 12 to the consolidated financial statements, the goodwill balance as of December 31, 2020 was $12,679 million. The Company assesses goodwill for impairment testing annually or more frequently if events or changes in circumstances indicate that the carrying value of a reporting unit might be impaired. In the current year, the Company only performed qualitative assessments to determine whether events or changes in circumstances indicate that goodwill might be impaired. These qualitative assessments were performed as of December 31, 2020.
112 | TC Energy Consolidated Financial Statements 2020


We identified the evaluation of qualitative goodwill impairment indicators, or qualitative factors, as a critical audit matter. The assessment of the potential impact that these qualitative factors have on a reporting unit's fair value required the application of subjective auditor judgment. Qualitative factors included macroeconomic conditions, industry and market considerations, current valuation multiples and discount rates, cost factors, historical and forecasted financial results and events specific to the reporting units, which required a higher degree of auditor judgment to evaluate. These qualitative factors could have had a significant effect on the Company's qualitative assessment and the potential for the need to perform a quantitative goodwill impairment test.
The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company's goodwill impairment assessment process, including controls related to the assessment of potential qualitative factors. We evaluated the Company's assessment of identified event-specific changes against our knowledge of event-specific changes obtained through other audit procedures. We evaluated information from analyst reports in the energy and utility industries, including global energy consumption forecasts and natural gas production forecasts, which were compared to geopolitical and market considerations used by the Company. We compared current valuation multiples and discount rates, cost factors, historical and forecasted financial results of the reporting units, including the impact of newly approved growth projects to assumptions used in quantitative goodwill impairment tests performed in previous periods. In addition, we involved a valuation professional with specialized skills and knowledge, who assisted in:
evaluating the Company’s determination of valuation multiples by comparing to independently observed recent market transactions of comparable assets and using publicly available market data for comparable entities;
evaluating the discount rates used by management in the evaluation, by comparing them against a discount rate range that was independently developed using publicly available market data for comparable entities.
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Chartered Professional Accountants
We have served as the Company's auditor since 1956.
Calgary, Canada
February 17, 2021
TC Energy Consolidated Financial Statements 2020 | 113


Report of Independent Registered Public Accounting Firm
To the Shareholders and the Board of Directors of TC Energy Corporation
Opinion on Internal Control Over Financial Reporting
We have audited TC Energy Corporation’s (the Company) internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2020 and 2019, the related consolidated statements of income, comprehensive income, cash flows, and equity for each of the years in the three-year period ended December 31, 2020, and the related notes (collectively, the consolidated financial statements), and our report dated February 17, 2021 expressed an unqualified opinion on those consolidated financial statements.
Basis for Opinion
The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
Definition and Limitations of Internal Control Over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
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Chartered Professional Accountants
Calgary, Canada
February 17, 2021

114 | TC Energy Consolidated Financial Statements 2020


Consolidated statement of income
year ended December 31202020192018
(millions of Canadian $, except per share amounts)
Revenues (Notes 5 and 7)
Canadian Natural Gas Pipelines4,469 4,010 4,038 
U.S. Natural Gas Pipelines5,031 4,978 4,314 
Mexico Natural Gas Pipelines716 603 619 
Liquids Pipelines2,371 2,879 2,584 
Power and Storage412 785 2,124 
12,999 13,255 13,679 
Income from Equity Investments (Note 9)
1,019 920 714 
Operating and Other Expenses
Plant operating costs and other3,878 3,913 3,593 
Commodity purchases resold 365 1,486 
Property taxes727 727 569 
Depreciation and amortization2,590 2,464 2,350 
Goodwill and other asset impairment charges (Notes 7 and 12)  801 
7,195 7,469 8,799 
Net (Loss)/ Gain on Assets Sold/Held for Sale (Note 27)
(50)(121)170 
Financial Charges
Interest expense (Note 18)2,228 2,333 2,265 
Allowance for funds used during construction(349)(475)(526)
Interest income and other(213)(460)76 
1,666 1,398 1,815 
Income before Income Taxes5,107 5,187 3,949 
Income Tax Expense (Note 17)
Current252 699 315 
Deferred(58)55 284 
Deferred – U.S. Tax Reform and 2018 FERC Actions  (167)
194 754 432 
Net Income4,913 4,433 3,517 
Net income /(loss) attributable to non-controlling interests (Note 20)297 293 (185)
Net Income Attributable to Controlling Interests4,616 4,140 3,702 
Preferred share dividends159 164 163 
Net Income Attributable to Common Shares4,457 3,976 3,539 
Net Income per Common Share (Note 21)
Basic$4.74 $4.28 $3.92 
Diluted$4.74 $4.27 $3.92 
Dividends Declared per Common Share$3.24 $3.00 $2.76 
Weighted Average Number of Common Shares (millions) (Note 21)
Basic940 929 902 
Diluted940 931 903 
The accompanying Notes to the consolidated financial statements are an integral part of these statements.
TC Energy Consolidated Financial Statements 2020 | 115


Consolidated statement of comprehensive income
year ended December 31202020192018
(millions of Canadian $)
Net Income4,913 4,433 3,517 
Other Comprehensive (Loss)/ Income, Net of Income Taxes
Foreign currency translation gains and losses on net investment in foreign operations(609)(944)1,358 
Reclassification to net income of foreign currency translation gains on disposal of foreign operations (13) 
Change in fair value of net investment hedges36 35 (42)
Change in fair value of cash flow hedges(583)(62)(10)
Reclassification to net income of gains and losses on cash flow hedges489 14 21 
Unrealized actuarial gains and losses on pension and other post-retirement benefit plans12 (10)(114)
Reclassification to net income of actuarial gains and losses on pension and other post-retirement benefit plans17 10 15 
Other comprehensive (loss)/ income on equity investments(280)(82)86 
Other comprehensive (loss)/ income (Note 23)(918)(1,052)1,314 
Comprehensive Income3,995 3,381 4,831 
Comprehensive income /(loss) attributable to non-controlling interests259 194 (13)
Comprehensive Income Attributable to Controlling Interests3,736 3,187 4,844 
Preferred share dividends159 164 163 
Comprehensive Income Attributable to Common Shares3,577 3,023 4,681 
The accompanying Notes to the consolidated financial statements are an integral part of these statements.
116 | TC Energy Consolidated Financial Statements 2020


Consolidated statement of cash flows
year ended December 31202020192018
(millions of Canadian $)
Cash Generated from Operations
Net income4,913 4,433 3,517 
Depreciation and amortization2,590 2,464 2,350 
Goodwill and other asset impairment charges (Notes 7 and 12)  801 
Deferred income taxes (Note 17)(58)55 284 
Deferred income taxes – U.S. Tax Reform and 2018 FERC Actions (Note 17)  (167)
Income from equity investments (Note 9)(1,019)(920)(714)
Distributions received from operating activities of equity investments (Note 9)1,123 1,213 985 
Employee post-retirement benefits funding, net of expense (Note 24)(19)(45)(35)
Net loss/(gain) on assets sold/held for sale (Note 27)50 121 (170)
Equity allowance for funds used during construction(235)(299)(374)
Unrealized (gains)/ losses on financial instruments(103)(134)220 
Foreign exchange losses /(gains) on Loan receivable from affiliate (Note 10)86 (53)5 
Other57 (46)(45)
(Increase)/ decrease in operating working capital (Note 26)(327)293 (102)
Net cash provided by operations7,058 7,082 6,555 
Investing Activities
Capital expenditures (Note 4)(8,013)(7,475)(9,418)
Capital projects in development (Note 4)(122)(707)(496)
Contributions to equity investments (Notes 4 and 9)(765)(602)(1,015)
Proceeds from sales of assets, net of transaction costs 3,407 2,398 614 
Acquisition(88)  
Reimbursement of costs related to capital projects in development (Note 13)  470 
Other distributions from equity investments (Note 9) 186 121 
Payment for unredeemed shares of Columbia Pipeline Group, Inc. (Note 27) (373) 
Deferred amounts and other(471)(299)(295)
Net cash used in investing activities(6,052)(6,872)(10,019)
Financing Activities
Notes payable (repaid)/ issued, net(220)1,656 817 
Long-term debt issued, net of issue costs5,770 3,024 6,238 
Long-term debt repaid(3,977)(3,502)(3,550)
Junior subordinated notes issued, net of issue costs 1,436  
Loss on settlement of financial instruments (Note 25)(130)  
Dividends on common shares(2,987)(1,798)(1,571)
Dividends on preferred shares(159)(160)(158)
Distributions to non-controlling interests(221)(216)(225)
Contributions from redeemable non-controlling interest (Note 20)1,033   
Common shares issued, net of issue costs91 253 1,148 
Partnership units of TC PipeLines, LP issued, net of issue costs   49 
Net cash (used in)/ provided by financing activities(800)693 2,748 
Effect of Foreign Exchange Rate Changes on Cash and Cash Equivalents(19)(6)73 
Increase /(Decrease) in Cash and Cash Equivalents187 897 (643)
Cash and Cash Equivalents
Beginning of year1,343 446 1,089 
Cash and Cash Equivalents
End of year1,530 1,343 446 
The accompanying Notes to the consolidated financial statements are an integral part of these statements.
TC Energy Consolidated Financial Statements 2020 | 117


Consolidated balance sheet
at December 3120202019
(millions of Canadian $)
ASSETS
Current Assets
Cash and cash equivalents1,530 1,343 
Accounts receivable2,162 2,422 
Inventories629 452 
Assets held for sale (Note 27) 2,807 
Other current assets (Note 6) 880 627 
5,201 7,651 
Plant, Property and Equipment (Note 7)
69,775 65,489 
Loan Receivable from Affiliate (Note 10)
1,338 1,434 
Equity Investments (Note 9)
6,677 6,506 
Restricted Investments1,898 1,557 
Regulatory Assets (Note 11)
1,753 1,587 
Goodwill (Note 12)
12,679 12,887 
Other Long-Term Assets (Note 13)
979 2,168 
100,300 99,279 
LIABILITIES
Current Liabilities
Notes payable (Note 14)4,176 4,300 
Accounts payable and other (Note 15)3,816 4,544 
Redeemable non-controlling interest (Note 20)633  
Dividends payable795 737 
Accrued interest595 613 
Current portion of long-term debt (Note 18)1,972 2,705 
11,987 12,899 
Regulatory Liabilities (Note 11)
4,148 3,772 
Other Long-Term Liabilities (Note 16)
1,475 1,614 
Deferred Income Tax Liabilities (Note 17)
5,806 5,703 
Long-Term Debt (Note 18)
34,913 34,280 
Junior Subordinated Notes (Note 19)
8,498 8,614 
66,827 66,882 
Redeemable Non-Controlling Interest (Note 20)
393  
EQUITY
Common shares, no par value (Note 21)24,488 24,387 
Issued and outstanding:
December 31, 2020 – 940 million shares
December 31, 2019 – 938 million shares
Preferred shares (Note 22)3,980 3,980 
Additional paid-in capital2  
Retained earnings5,367 3,955 
Accumulated other comprehensive loss (Note 23)(2,439)(1,559)
Controlling Interests31,398 30,763 
Non-controlling interests (Note 20)1,682 1,634 
33,080 32,397 
100,300 99,279 
Commitments, Contingencies and Guarantees (Note 28)
Variable Interest Entities (Note 29)
Subsequent Events (Note 30)
The accompanying Notes to the consolidated financial statements are an integral part of these statements.
On behalf of the Board:
https://cdn.kscope.io/b9f28d143b5a402af4abf79562e00d0f-trp-20201231_g1.jpg
https://cdn.kscope.io/b9f28d143b5a402af4abf79562e00d0f-trp-20201231_g4.jpg
Francois L. Poirier, Director
John E. Lowe, Director
118 | TC Energy Consolidated Financial Statements 2020


Consolidated statement of equity
year ended December 31202020192018
(millions of Canadian $)
Common Shares (Note 21)
Balance at beginning of year24,387 23,174 21,167 
Shares issued:
On exercise of stock options 101 282 34 
Under dividend reinvestment and share purchase plan  931 855 
Under at-the-market equity issuance program, net of issue costs  — 1,118 
Balance at end of year24,488 24,387 23,174 
Preferred Shares
Balance at beginning and end of year3,980 3,980 3,980 
Additional Paid-In Capital
Balance at beginning of year 17 — 
Issuance of stock options, net of exercises2 (17)10 
Dilution from TC PipeLines, LP units issued — 7 
Balance at end of year2 — 17 
Retained Earnings
Balance at beginning of year3,955 2,773 1,623 
Net income attributable to controlling interests4,616 4,140 3,702 
Common share dividends(3,045)(2,794)(2,501)
Preferred share dividends(159)(164)(163)
Adjustment related to income tax effects of asset drop-downs to TC PipeLines, LP  — 95 
Reclassification of AOCI to retained earnings resulting from U.S. Tax Reform  — 17 
Balance at end of year5,367 3,955 2,773 
Accumulated Other Comprehensive Loss
Balance at beginning of year(1,559)(606)(1,731)
Other comprehensive (loss)/ income attributable to controlling interests (Note 23)(880)(953)1,142 
Reclassification of AOCI to retained earnings resulting from U.S. Tax Reform  — (17)
Balance at end of year(2,439)(1,559)(606)
Equity Attributable to Controlling Interests31,398 30,763 29,338 
Equity Attributable to Non-Controlling Interests
Balance at beginning of year1,634 1,655 1,852 
Net income /(loss) attributable to non-controlling interests307 293 (185)
Other comprehensive (loss)/ income attributable to non-controlling interests(38)(99)172 
Distributions declared to non-controlling interests(221)(215)(224)
Issuance of TC PipeLines, LP units
Proceeds, net of issue costs — 49 
Decrease in TC Energy's ownership of TC PipeLines, LP — (9)
Balance at end of year1,682 1,634 1,655 
Total Equity33,080 32,397 30,993 
The accompanying Notes to the consolidated financial statements are an integral part of these statements.
TC Energy Consolidated Financial Statements 2020 | 119


Notes to consolidated financial statements
1. DESCRIPTION OF TC ENERGY'S BUSINESS
TC Energy Corporation (TC Energy or the Company) is a leading North American energy infrastructure company which operates in five business segments: Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, Mexico Natural Gas Pipelines, Liquids Pipelines and Power and Storage. These segments offer different products and services, including certain natural gas, crude oil and electricity marketing and storage services. The Company also has a Corporate segment, consisting of corporate and administrative functions that provide governance, financing and other support to the Company's business segments.
Canadian Natural Gas Pipelines
The Canadian Natural Gas Pipelines segment primarily consists of the Company's investments in 40,707 km (25,294 miles) of regulated natural gas pipelines.
U.S. Natural Gas Pipelines
The U.S. Natural Gas Pipelines segment primarily consists of the Company's investments in 50,211 km (31,199 miles) of regulated natural gas pipelines, 535 Bcf of regulated natural gas storage facilities and other assets, owned directly and through the Company's investment in TC PipeLines, LP.
Mexico Natural Gas Pipelines
The Mexico Natural Gas Pipelines segment primarily consists of the Company's investments in 2,503 km (1,554 miles) of regulated natural gas pipelines.
Liquids Pipelines
The Liquids Pipelines segment primarily consists of the Company's investments in 4,946 km (3,075 miles) of crude oil pipeline systems which connect Alberta and U.S. crude oil supplies to U.S. refining markets in Illinois, Oklahoma and Texas.
Power and Storage
The Power and Storage segment primarily consists of the Company's investments in seven power generation facilities and 118 Bcf of non-regulated natural gas storage facilities. These assets are located in Alberta, Ontario, Québec and New Brunswick.
2. ACCOUNTING POLICIES
The Company's consolidated financial statements have been prepared by management in accordance with U.S. generally accepted accounting principles. Amounts are stated in Canadian dollars unless otherwise indicated.
Basis of Presentation
These consolidated financial statements include the accounts of TC Energy and its subsidiaries. The Company consolidates variable interest entities (VIEs) for which it is considered to be the primary beneficiary as well as voting interest entities in which it has a controlling financial interest. To the extent there are interests owned by other parties, these interests are included in non-controlling interests, although certain non-controlling interests with redemption features are presented in mezzanine equity. TC Energy uses the equity method of accounting for joint ventures in which the Company is able to exercise joint control and for investments in which the Company is able to exercise significant influence. TC Energy records its proportionate share of undivided interests in certain assets. Certain prior year amounts have been reclassified to conform to current year presentation.
Use of Estimates and Judgments
In preparing these consolidated financial statements, TC Energy is required to make estimates and assumptions that affect both the amount and timing of recording assets, liabilities, revenues and expenses since the determination of these items may be dependent on future events. The Company uses the most current information available and exercises careful judgment in making these estimates and assumptions.
120 | TC Energy Consolidated Financial Statements 2020


Certain estimates and judgments have a material impact where the assumptions underlying these accounting estimates relate to matters that are highly uncertain at the time the estimate or judgment is made or are subjective. These estimates and judgments include, but are not limited to:
recoverability of plant, property and equipment (Notes 7 and 30) and development costs (Notes 13 and 30)
fair value of reporting units that contain goodwill (Notes 12 and 27) and
fair value of assets and liabilities acquired in a business combination (Note 27).
Some of the estimates and judgments the Company has to make have a material impact on the consolidated financial statements, but do not involve significant subjectivity or uncertainty. These estimates and judgments include, but are not limited to:
depreciation rates of plant, property and equipment (Note 7)
determining whether a contract contains a lease (Note 8)
fair value of equity investments (Note 9)
carrying value of regulatory assets and liabilities (Note 11)
carrying value of asset retirement obligations (Note 16)
provisions for income taxes, including valuation allowances and releases (Note 17)
assumptions used to measure retirement and other post-retirement benefit obligations (Note 24)
fair value of financial instruments (Note 25) and
provisions for commitments, contingencies and guarantees (Note 28).
Actual results could differ from these estimates.
Regulation
Certain Canadian, U.S. and Mexico natural gas pipeline and storage assets are regulated with respect to construction, operations and the determination of tolls. In Canada, regulated natural gas pipelines and liquids pipelines are subject to the authority of the Canada Energy Regulator (CER), formerly the National Energy Board (NEB), the Alberta Energy Regulator or the B.C. Oil and Gas Commission. In the U.S., regulated natural gas pipelines, liquids pipelines and regulated natural gas storage assets are subject to the authority of the Federal Energy Regulatory Commission (FERC). In Mexico, regulated natural gas pipelines are subject to the authority of the Energy Regulatory Commission (CRE). Rate-regulated accounting (RRA) standards may impact the timing of the recognition of certain revenues and expenses in TC Energy's rate-regulated businesses which may differ from that otherwise recognized in non-rate-regulated businesses to reflect the economic impact of the regulators' decisions regarding revenues and tolls. Regulatory assets represent costs that are expected to be recovered in customer rates in future periods and regulatory liabilities represent amounts that are expected to be returned to customers through future rate-setting processes. An operation qualifies for the use of RRA when it meets three criteria:
a regulator must establish or approve the rates for the regulated services or activities
the regulated rates must be designed to recover the cost of providing the services or products, and
it is reasonable to assume that rates set at levels to recover the cost can be charged to (and collected from) customers because of the demand for services or products and the level of direct or indirect competition.
TC Energy's businesses that apply RRA currently include Canadian, U.S. and Mexico natural gas pipelines, and regulated U.S. natural gas storage. RRA is not applicable to the Company's liquids pipelines as the regulators' decisions regarding operations and tolls on those systems generally do not have an impact on timing of recognition of revenues and expenses.
Revenue Recognition
The total consideration for services and products to which the Company expects to be entitled can include fixed and variable amounts. The Company has variable revenue that is subject to factors outside the Company's influence, such as market prices, actions of third parties and weather conditions. The Company considers this variable revenue to be "constrained" as it cannot be reliably estimated and, therefore, recognizes variable revenue when the service is provided.
Revenues from contracts with customers are recognized net of any commodity taxes collected from customers which are subsequently remitted to governmental authorities. The Company's contracts with customers include natural gas and liquids pipelines capacity arrangements and transportation contracts, power generation contracts, natural gas storage and other contracts.
TC Energy Consolidated Financial Statements 2020 | 121


Canadian Natural Gas Pipelines
Capacity Arrangements and Transportation
Revenues from the Company's Canadian natural gas pipelines are generated from contractual arrangements for committed capacity and from the transportation of natural gas. Revenues earned from firm contracted capacity arrangements are recognized ratably over the term of the contract regardless of the amount of natural gas that is transported. Transportation revenues for interruptible or volumetric-based services are recognized when the service is performed.
Revenues from the Company's Canadian natural gas pipelines under federal jurisdiction are subject to regulatory decisions by the CER. The tolls charged on these pipelines are based on revenue requirements designed to recover the costs of providing natural gas capacity for transportation services, which includes a return of and on capital, as approved by the CER. The Company's Canadian natural gas pipelines are generally not subject to earnings volatility related to variances in revenues and costs. These variances, except as related to incentive arrangements, are generally subject to deferral treatment and are recovered or refunded in future tolls. Revenues recognized prior to a CER decision on rates for that period reflect the CER's last approved return on equity (ROE) assumptions. Adjustments to revenues are recorded when the CER decision is received. Canadian natural gas pipelines' revenues are invoiced and received on a monthly basis. The Company does not take ownership of the natural gas that it transports for customers.
Other
The Company is contracted to provide pipeline construction services to a partially-owned entity for a development fee. The development fee is considered variable consideration due to refund provisions in the contract. The Company recognizes its estimate of the most likely amount of the variable consideration to which it will be entitled. The development fee is recognized over time as the services are provided based on the input method using an estimate of activity level.
U.S. Natural Gas Pipelines
Capacity Arrangements and Transportation
Revenues from the Company's U.S. natural gas pipelines are generated from contractual arrangements for committed capacity and from the transportation of natural gas. Revenues earned from firm contracted capacity arrangements are generally recognized ratably over the term of the contract regardless of the amount of natural gas that is transported. Transportation revenues for interruptible or volumetric-based services are recognized when the service is performed.
The Company's U.S. natural gas pipelines are subject to FERC regulations and, as a result, a portion of revenues collected may be subject to refund if invoiced during an interim period when a rate proceeding is ongoing. Allowances for these potential refunds are recognized using management's best estimate based on the facts and circumstances of the proceeding. Any allowances that are recognized during the proceeding process are refunded or retained at the time a regulatory decision becomes final. U.S. natural gas pipelines' revenues are invoiced and received on a monthly basis. The Company does not take ownership of the natural gas that it transports for customers.
Natural Gas Storage and Other
Revenues from the Company's regulated U.S. natural gas storage services are generated mainly from firm committed capacity storage contracts. The performance obligation in these contracts is the reservation of a specified amount of capacity for storage including specifications with regards to the amount of natural gas that can be injected or withdrawn on a daily basis. Revenues are recognized ratably over the contract period for firm committed capacity regardless of the amount of natural gas that is stored, and when gas is injected or withdrawn for interruptible or volumetric-based services. Natural gas storage services revenues are invoiced and received on a monthly basis. The Company does not take ownership of the natural gas that it stores for customers.
The Company owns mineral rights associated with certain natural gas storage facilities. These mineral rights can be leased or contributed to producers of natural gas in return for a royalty interest which is recognized when natural gas and associated liquids are produced.
122 | TC Energy Consolidated Financial Statements 2020


During 2019, TC Energy sold certain Columbia Midstream assets that were part of the acquisition of Columbia Pipeline Group, Inc.(Columbia) in 2016. Prior to the sale, revenues from the Company's midstream natural gas services, including gathering, treating, conditioning, processing, compression and liquids handling services, were generated from contractual arrangements and were recognized ratably over the term of the contract. Midstream natural gas service revenues were invoiced and received on a monthly basis. The Company did not take ownership of the natural gas for which it provided midstream services. Refer to Note 27, Acquisitions and dispositions, for additional information regarding the sale of the Columbia Midstream assets.
Net revenues earned from the sale of proprietary natural gas are recognized in the month of delivery.
Mexico Natural Gas Pipelines
Capacity Arrangements and Transportation
Revenues from the Company's Mexico natural gas pipelines are primarily collected based on CRE-approved negotiated firm capacity contracts and are generally recognized ratably over the term of the contract. Transportation revenues related to interruptible or volumetric-based services are recognized when the service is performed. Mexico natural gas pipelines' revenues are invoiced and received on a monthly basis. The Company does not take ownership of the natural gas that it transports for customers.
Other
The Company is contracted to provide operating services to a partially-owned entity for a fee which is recognized over time as services are provided. The Company's construction services to this entity have been performed and the related development fee has been recognized. Net revenues earned from the sale of proprietary natural gas are recognized in the month of delivery.
Liquids Pipelines
Capacity Arrangements and Transportation
Revenues from the Company's liquids pipelines are generated mainly from providing customers with firm capacity arrangements to transport crude oil. The performance obligation in these contracts is the reservation of a specified amount of capacity together with the transportation of crude oil on a monthly basis. Revenues earned from these arrangements are recognized ratably over the term of the contract regardless of the amount of crude oil that is transported. Revenues for interruptible or volumetric-based services are recognized when the service is performed. Liquids pipelines' revenues are invoiced and received on a monthly basis. The Company does not take ownership of the crude oil that it transports for customers.
Other
Net revenues earned from the sale of proprietary crude oil are recognized in the month of delivery.
Power and Storage
Power Generation
Revenues from the Company's Power and Storage business are primarily derived from long-term contractual commitments to provide power capacity to meet the demands of the market, and from the sale of electricity to both centralized markets and to customers. Power generation revenues also include revenues from the sale of steam to customers. Revenues and capacity payments are recognized as the services are provided and as electricity and steam is delivered. Power generation revenues are invoiced and received on a monthly basis.
Natural Gas Storage and Other
Non-regulated natural gas storage contracts include park, loan and term storage arrangements. Revenues are recognized as the services are provided. Term storage revenues are invoiced and received on a monthly basis. Revenues earned from the sale of proprietary natural gas are recognized in the month of delivery. Revenues from ancillary services are recognized as the service is provided. The Company does not take ownership of the natural gas that it stores for customers.
Cash and Cash Equivalents
The Company's Cash and cash equivalents consist of cash and highly liquid short-term investments with original maturities of three months or less and are recorded at cost, which approximates fair value.
Inventories
Inventories primarily consist of materials and supplies including spare parts and fuel, proprietary crude oil in transit and proprietary natural gas inventory in storage. Inventories are carried at the lower of cost and net realizable value.
TC Energy Consolidated Financial Statements 2020 | 123


Assets Held for Sale
The Company classifies assets as held for sale when management approves and commits to a formal plan to actively market a disposal group and expects the sale to close within the next 12 months. Upon classifying an asset as held for sale, the asset is recorded at the lower of its carrying amount or its estimated fair value, net of selling costs, and any losses are recognized in net income. Gains related to the expected sale of these assets are not recognized until the transaction closes. Once an asset is classified as held for sale, depreciation expense is no longer recorded.
Plant, Property and Equipment
Natural Gas Pipelines
Plant, property and equipment for natural gas pipelines is carried at cost. Depreciation is calculated on a straight-line basis once the assets are ready for their intended use. Pipeline and compression equipment are depreciated at annual rates ranging from 0.6 per cent to seven per cent, and metering and other plant equipment are depreciated at various rates reflecting their estimated useful lives. The cost of major overhauls of equipment is capitalized and depreciated over the estimated service lives of the overhauls. The cost of regulated natural gas pipelines includes an allowance for funds used during construction (AFUDC) consisting of a debt component and an equity component based on the rate of return on rate base approved by regulators. AFUDC is reflected as an increase in the cost of the assets in Plant, property and equipment with a corresponding credit recognized in Allowance for funds used during construction in the Consolidated statement of income. The equity component of AFUDC is a non-cash expenditure. Interest is capitalized during construction of non-regulated natural gas pipelines.
Natural gas pipelines' linepack and natural gas storage base gas are valued at cost and are maintained to ensure adequate pressure exists to transport natural gas through pipelines and deliver natural gas held in storage. Linepack and base gas are not depreciated.
When rate-regulated natural gas pipelines retire plant, property and equipment from service, the original book cost is removed from the gross plant amount and recorded as a reduction to accumulated depreciation with no amount recorded to net income. Costs incurred to remove plant, property and equipment from service, net of any salvage proceeds, are also recorded in accumulated depreciation.
Other
The Company participates as a working interest partner in the development of certain Marcellus and Utica acreage. The working interest allows the Company to invest in drilling activities in addition to receiving a royalty interest in well production. The Company uses the successful efforts method of accounting for natural gas and crude oil resulting from its portion of drilling activities. Capitalized well costs are depleted based on the units of production method.
Prior to its sale in 2019, plant, property and equipment for Columbia Midstream was carried at cost. Depreciation was calculated on a straight-line basis once the assets were ready for their intended use. Gathering and processing facilities were depreciated at annual rates ranging from 1.7 per cent to 2.5 per cent, and other plant and equipment were depreciated at various rates reflecting their estimated useful lives. When these assets were retired from plant, property and equipment, the original book cost and related accumulated depreciation were derecognized and any gain or loss was recorded in net income. Refer to Note 27, Acquisitions and dispositions, for additional information.
Liquids Pipelines
Plant, property and equipment for liquids pipelines is carried at cost. Depreciation is calculated on a straight-line basis once the assets are ready for their intended use. Pipeline and pumping equipment are depreciated at annual rates ranging from two per cent to 2.5 per cent, and other plant and equipment are depreciated at various rates reflecting their estimated useful lives. The cost of these assets includes interest capitalized during construction. When liquids pipelines retire plant, property and equipment from service, the original book cost and related accumulated depreciation are derecognized and any gain or loss is recorded in net income.
124 | TC Energy Consolidated Financial Statements 2020


Power and Storage
Plant, property and equipment for Power and Storage assets are recorded at cost and, once the assets are ready for their intended use, depreciated by major component on a straight-line basis over their estimated service lives at average annual rates ranging from two per cent to 20 per cent. Other equipment is depreciated at various rates reflecting their estimated useful lives. The cost of major overhauls of equipment is capitalized and depreciated over the estimated service lives of the overhauls. Interest is capitalized on facilities under construction. When these assets are retired from plant, property and equipment, the original book cost and related accumulated depreciation are derecognized and any gain or loss is recorded in net income.
Natural gas storage base gas, which is valued at original cost, represents gas volumes that are maintained to ensure adequate reservoir pressure exists to deliver gas held in storage. Base gas is not depreciated.
Corporate
Corporate plant, property and equipment is recorded at cost and depreciated on a straight-line basis over its estimated useful life at average annual rates ranging from four per cent to 20 per cent.
Capital Projects in Development
The Company capitalizes project costs once advancement of the project to a construction stage is probable or costs are otherwise likely to be recoverable. The Company also capitalizes interest costs for non-regulated projects in development and AFUDC for regulated projects in development. Capital projects in development are included in Other long-term assets on the Consolidated balance sheet. These represent larger projects that generally require regulatory or other approvals before physical construction can begin. Once approvals are received, projects are moved to plant, property and equipment under construction.
Leases
On January 1, 2019, the Company adopted the FASB's new lease guidance using optional transition relief. Results reported for 2020 and 2019 reflect the application of the new guidance while the 2018 comparative results were prepared and reported under previous lease guidance.
Lessee Accounting Policy
The Company determines if an arrangement is a lease at inception of the contract. Operating leases are recognized as right-of-use (ROU) assets and included in Plant, property, and equipment while corresponding liabilities are included in Accounts payable and other and Other long-term liabilities on the Consolidated balance sheet.
Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at the commencement date of the lease agreement. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. As the Company's lease contracts do not provide an implicit interest rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. Operating lease expense is recognized on a straight-line basis over the lease term and included in Plant operating costs and other in the Consolidated statement of income.
The Company applies the practical expedients to not recognize ROU assets or lease liabilities for leases that qualify for the short-term lease recognition exemption and to not separate lease and non-lease components for all leases for which the Company is a lessee.
Lessor Accounting Policy
The Company is the lessor within certain contracts and these are accounted for as operating leases. The Company recognizes lease payments as income over the lease term on a straight-line basis. Variable lease payments are recognized as income in the period in which they occur.
The Company applies the practical expedient to not separate lease and non-lease components for facility and liquids tank terminals for which the Company is the lessor.
Impairment of Long-Lived Assets
The Company reviews long-lived assets such as plant, property and equipment, equity investments and capital projects in development for impairment whenever events or changes in circumstances indicate the carrying value may not be recoverable. If the total of the estimated undiscounted future cash flows for an asset within plant, property and equipment, or the estimated selling price of any long-lived asset is less than the carrying value of an asset, an impairment loss is recognized for the excess of the carrying value over the estimated fair value of the asset.
TC Energy Consolidated Financial Statements 2020 | 125


Acquisitions and Goodwill
The Company accounts for business combinations using the acquisition method of accounting and, accordingly, the assets and liabilities of the acquired entities are primarily measured at their estimated fair values at the date of acquisition. The excess of the fair value of the consideration transferred over the estimated fair value of the net assets acquired is classified as goodwill. Goodwill is not amortized and is tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate that it might be impaired.
The annual review for goodwill impairment is performed at the reporting unit level which is one level below the Company's operating segments. The Company can initially assess qualitative factors to determine whether events or changes in circumstances indicate that goodwill might be impaired. The factors the Company considers include, but are not limited to, macroeconomic conditions, industry and market considerations, current valuation multiples and discount rates, cost factors, historical and forecasted financial results, and events specific to that reporting unit. If the Company concludes that it is not more likely than not that the fair value of the reporting unit is greater than its carrying value, the Company will then perform a quantitative goodwill impairment test. The Company can elect to proceed directly to the quantitative goodwill impairment test for any of its reporting units. If the quantitative goodwill impairment test is performed, the Company compares the fair value of the reporting unit to its carrying value, including its goodwill. If the carrying value of a reporting unit exceeds its fair value, goodwill impairment is measured at the amount by which the reporting unit’s carrying value exceeds its fair value.
When a portion of a reporting unit that constitutes a business is disposed, goodwill associated with that business is included in the carrying amount of the business in determining the gain or loss on disposal. The amount of goodwill disposed is determined based on the relative fair values of the business to be disposed and the portion of the reporting unit that will be retained. A goodwill impairment test will be completed for both the goodwill disposed and the portion of the goodwill that will be retained.
Loans and Receivables
Loans receivable from affiliates and accounts receivable are measured at amortized cost.
Impairment of Financial Assets
The Company reviews financial assets carried at amortized cost for impairment using the lifetime expected loss of the financial asset at initial recognition and throughout the life of the financial asset. TC Energy uses historical credit loss and recovery data, adjusted for management's judgment regarding current economic and credit conditions, along with supportable forecasts to determine any impairment, which is recognized in Plant operating costs and other.
Power Purchase Arrangements
A power purchase arrangement (PPA) is a long-term contract for the purchase or sale of power on a predetermined basis. TC Energy has PPAs for the sale of power that are accounted for as operating leases where TC Energy is the lessor.
Restricted Investments
The Company has certain investments that are restricted as to their withdrawal and use. These restricted investments are classified as available for sale and are recorded at fair value on the Consolidated balance sheet.
As a result of the CER’s Land Matters Consultation Initiative (LMCI), TC Energy is required to collect funds to cover estimated future pipeline abandonment costs for larger CER-regulated Canadian pipelines. Funds collected are placed in trusts that hold and invest the funds and are accounted for as restricted investments (LMCI restricted investments). LMCI restricted investments may only be used to fund the abandonment of the CER-regulated pipeline facilities, therefore, a corresponding regulatory liability is recorded on the Consolidated balance sheet. The Company also has other restricted investments that have been set aside to fund insurance claim losses to be paid by the Company's wholly-owned captive insurance subsidiary.
126 | TC Energy Consolidated Financial Statements 2020


Income Taxes
The Company uses the asset and liability method of accounting for income taxes. This method requires the recognition of deferred income tax assets and liabilities for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred income tax assets and liabilities are measured using enacted tax rates at the balance sheet date that are anticipated to apply to taxable income in the years in which temporary differences are expected to be reversed or settled. Changes to these balances are recognized in net income in the period in which they occur, except for changes in balances related to regulated natural gas pipelines which are deferred until they are refunded or recovered in tolls, as permitted by the regulator. Deferred income tax assets and liabilities are classified as non-current on the Consolidated balance sheet.
Canadian income taxes are not provided on the unremitted earnings of foreign investments that the Company does not intend to repatriate in the foreseeable future.
Asset Retirement Obligations
The Company recognizes the fair value of a liability for asset retirement obligations (ARO) in the period in which it is incurred, when a legal obligation exists and a reasonable estimate of fair value can be made. The fair value is added to the carrying amount of the associated asset and the liability is accreted through charges to Plant operating costs and other in the Consolidated statement of income.
In determining the fair value of ARO, the following assumptions are used:
the expected retirement date
the scope and cost of abandonment and reclamation activities that are required, and
appropriate inflation and discount rates.
The Company's AROs are substantively related to its power generation facilities. The scope and timing of asset retirements related to the Company's natural gas and liquids pipelines and storage facilities are indeterminable because the Company intends to operate them as long as there is supply and demand. As a result, the Company has not recorded an amount for ARO related to these assets.
Environmental Liabilities
The Company records liabilities on an undiscounted basis for environmental remediation efforts that are likely to occur and where the cost can be reasonably estimated. These estimates, including associated legal costs, are based on available information using existing technology and enacted laws and regulations, and are subject to revision in future periods based on actual costs incurred or new circumstances. Amounts expected to be recovered from other parties, including insurers, are recorded as an asset separate from the associated liability.
Emission allowances or credits purchased for compliance are recorded on the Consolidated balance sheet at historical cost and expensed when they are utilized or cancelled/retired by government agencies. Compliance costs are expensed when incurred. Allowances granted to or internally generated by TC Energy are not attributed a value for accounting purposes. When required, TC Energy accrues emission liabilities on the Consolidated balance sheet using the best estimate of the amount required to settle the compliance obligation. Allowances and credits not used for compliance are sold and any gain or loss is recorded in Revenues.
Stock Options and Other Compensation Programs
TC Energy's Stock Option Plan permits options for the purchase of common shares to be awarded to certain employees, including officers. Stock options granted are recorded using the fair value method. Under this method, compensation expense is measured at the grant date based on the fair value as calculated using a binomial model and is recognized on a straight-line basis over the vesting period with an offset to Additional paid-in capital. Forfeitures are accounted for when they occur. Upon exercise of stock options, amounts originally recorded against Additional paid-in capital are reclassified to Common shares on the Consolidated balance sheet.
The Company has medium-term incentive plans under which payments are made to eligible employees. The expense related to these incentive plans is accounted for on an accrual basis. Under these plans, benefits vest when certain conditions are met, including the employees' continued employment during a specified period and achievement of specified corporate performance targets.
TC Energy Consolidated Financial Statements 2020 | 127


Employee Post-Retirement Benefits
The Company sponsors defined benefit pension plans (DB Plans), defined contribution plans (DC Plans), savings plans and other post-retirement benefit plans. Contributions made by the Company to the DC Plans and savings plans are expensed in the period in which contributions are made. The cost of the DB Plans and other post-retirement benefits received by employees is actuarially determined using the projected benefit method pro-rated based on service, and management's best estimate of expected plan investment performance, salary escalation, retirement age of employees and expected health care costs.
The DB Plans' assets are measured at fair value at December 31 of each year. The expected return on the DB Plans' assets is determined using market-related values based on a five-year moving average value for all of the DB Plans' assets. Past service costs are amortized over the expected average remaining service life (EARSL) of the employees. Adjustments arising from plan amendments are amortized on a straight-line basis over the EARSL of employees active at the date of amendment. The Company recognizes the overfunded or underfunded status of its DB Plans as an asset or liability, respectively, on its Consolidated balance sheet and recognizes changes in that funded status through Other comprehensive (loss)/ income (OCI) in the year in which the change occurs. The excess of net actuarial gains or losses over 10 per cent of the greater of the benefit obligation and the market-related value of the DB Plans' assets, if any, is amortized out of Accumulated other comprehensive income /(loss) (AOCI) and into net income over the EARSL of the active employees. When the restructuring of a benefit plan gives rise to both a curtailment and a settlement, the curtailment is accounted for prior to the settlement.
For certain regulated operations, post-retirement benefit amounts are recoverable through tolls as benefits are funded. The Company records any unrecognized gains or losses or changes in actuarial assumptions related to these post-retirement benefit plans as either regulatory assets or liabilities. The regulatory assets or liabilities are amortized on a straight-line basis over the EARSL of active employees.
Foreign Currency Transactions and Translation
Foreign currency transactions are those transactions whose terms are denominated in a currency other than the currency of the primary economic environment in which the Company or reporting subsidiary operates. This is referred to as the functional currency. Transactions denominated in foreign currencies are translated into the functional currency using the exchange rate prevailing at the date of the transaction. Monetary assets and liabilities denominated in foreign currencies are translated to the functional currency using the rate of exchange in effect at the balance sheet date whereas non-monetary assets and liabilities are translated at the historical rate of exchange in effect on the date of the transaction. Exchange gains and losses resulting from translation of monetary assets and liabilities are recorded in net income except for exchange gains and losses on any foreign currency debt related to Canadian regulated natural gas pipelines, which are deferred until they are refunded or recovered in tolls, as permitted by the CER.
Gains and losses arising from translation of foreign operations' functional currencies to the Company's Canadian dollar reporting currency are reflected in OCI until the operations are sold, at which time the gains and losses are reclassified to net income. Asset and liability accounts are translated at the period-end exchange rates while revenues, expenses, gains and losses are translated at the exchange rates in effect at the time of the transaction. The Company's U.S. dollar-denominated debt and certain derivative hedging instruments have been designated as a hedge of the net investment in foreign subsidiaries and, as a result, the unrealized foreign exchange gains and losses on the U.S. dollar-denominated debt and derivatives are also reflected in OCI.
Derivative Instruments and Hedging Activities
All derivative instruments are recorded on the Consolidated balance sheet at fair value, unless they qualify for and are designated under a normal purchase and normal sales exemption, or are considered to meet other permitted exemptions.
The Company applies hedge accounting to arrangements that qualify for and are designated for hedge accounting treatment. This includes fair value and cash flow hedges and hedges of foreign currency exposures of net investments in foreign operations. Hedge accounting is discontinued prospectively if the hedging relationship ceases to be effective or the hedging or hedged items cease to exist as a result of maturity, expiry, sale, termination, cancellation or exercise.
128 | TC Energy Consolidated Financial Statements 2020


In a fair value hedging relationship, the carrying value of the hedged item is adjusted for changes in fair value attributable to the hedged risk and these changes are recognized in net income. Changes in the fair value of the hedged item, to the extent that the hedging relationship is effective, are offset by changes in the fair value of the hedging item, which are also recorded in net income. Changes in the fair value of foreign exchange and interest rate fair value hedges are recorded in Interest income and other and Interest expense, respectively. If hedge accounting is discontinued, the carrying value of the hedged item is no longer adjusted and the cumulative fair value adjustments to the carrying value of the hedged item are amortized to net income over the remaining term of the original hedging relationship.
In a cash flow hedging relationship, the change in the fair value of the hedging derivative is recognized in OCI. When hedge accounting is discontinued, the amounts recognized previously in AOCI are reclassified to Revenues, Interest expense and Interest income and other, as appropriate, during the periods when the variability in cash flows of the hedged item affects net income or as the original hedged item settles. Gains and losses on derivatives are reclassified immediately to net income from AOCI when the hedged item is sold or terminated early, or when it becomes probable that the anticipated transaction will not occur. Termination payments on interest rate derivatives are classified as a financing activity on the Consolidated statement of cash flows.
In hedging the foreign currency exposure of a net investment in a foreign operation, the foreign exchange gains and losses on the hedging instruments are recognized in OCI. The amounts recognized previously in AOCI are reclassified to net income in the event the Company reduces its net investment in a foreign operation.
In some cases, derivatives do not meet the specific criteria for hedge accounting treatment. In these instances, the changes in fair value are recorded in net income in the period of change.
Gains and losses arising from changes in the fair value of derivatives accounted for as part of RRA, including those that qualify for hedge accounting treatment, are refunded or recovered through the tolls charged by the Company. As a result, these gains and losses are deferred as regulatory assets or liabilities and are refunded to or collected from ratepayers in subsequent periods when the derivative settles.
Derivatives embedded in other financial instruments or contracts (host instrument) are recorded as separate derivatives. Embedded derivatives are measured at fair value if their economic characteristics are not clearly and closely related to those of the host instrument, their terms are the same as those of a stand-alone derivative and the total contract is not held for trading or accounted for at fair value. When changes in the fair value of embedded derivatives are measured separately, they are included in net income.
Long-Term Debt Transaction Costs and Issuance Costs
The Company records long-term debt transaction costs and issuance costs as a deduction from the carrying amount of the related debt liability and amortizes these costs using the effective interest method except those related to the Canadian natural gas regulated pipelines, which continue to be amortized on a straight-line basis in accordance with the provisions of regulatory tolling mechanisms.
Guarantees
Upon issuance, the Company records the fair value of certain guarantees entered into by the Company on behalf of a partially-owned entity or by partially-owned entities for which contingent payments may be made. The fair value of these guarantees is estimated by discounting the cash flows that would be incurred by the Company if letters of credit were used in place of the guarantees as appropriate in the circumstances. Guarantees are recorded as an increase to Equity investments or Plant, property and equipment and a corresponding liability is recorded in Other long-term liabilities. The release from the obligation is recognized either over the term of the guarantee or upon expiration or settlement of the guarantee.
TC Energy Consolidated Financial Statements 2020 | 129


3.  ACCOUNTING CHANGES
Changes in Accounting Policies for 2020
Measurement of credit losses on financial instruments
In June 2016, the FASB issued new guidance that changes how entities measure credit losses for most financial assets and certain other financial instruments that are not measured at fair value through net income. The new guidance amends the impairment model of financial instruments, basing it on expected losses rather than incurred losses. These expected credit losses will be recognized as an allowance rather than as a direct write-down of the amortized cost basis. The new guidance was effective January 1, 2020 and was applied using a modified retrospective approach. The adoption of this new guidance did not have a material impact on the Company's consolidated financial statements.
Implementation costs of cloud computing arrangements
In August 2018, the FASB issued new guidance requiring an entity in a hosting arrangement that is a service contract to follow the guidance for internal-use software to determine which implementation costs should be capitalized as an asset and which costs should be expensed. The guidance also requires the entity to amortize the capitalized implementation costs of a hosting arrangement over the term of the arrangement. This guidance was effective January 1, 2020 and was applied prospectively. The adoption of this new guidance did not have a material impact on the Company's consolidated financial statements.
Consolidation
In October 2018, the FASB issued new guidance for determining whether fees paid to decision makers and service providers are variable interests for indirect interests held through related parties under common control. This new guidance was effective January 1, 2020 and was applied on a retrospective basis. The adoption of this new guidance did not have an impact on the Company's consolidated financial statements.
Defined benefit plans
In August 2018, the FASB issued new guidance which amends and clarifies disclosure requirements related to defined benefit pension and other post-retirement benefit plans. This new guidance was effective for annual disclosure requirements at December 31, 2020 and applied on a retrospective basis. The adoption of this new guidance, which is limited to disclosures only, did not have a material impact on the Company's consolidated financial statements.
Reference rate reform
In response to the expected cessation of the London Interbank Offered Rate (LIBOR), of which certain rate settings may cease to be published at the end of 2021 with full cessation expected by mid-2023, the FASB issued new optional guidance in March 2020 that eases the potential burden in accounting for such reference rate reform. The new guidance provides optional expedients for contracts and hedging relationships that are affected by reference rate reform if certain criteria are met. Each of the expedients can be applied as of January 1, 2020 through December 31, 2022. For eligible hedging relationships existing as of January 1, 2020 and prospectively, the Company has applied an optional expedient allowing an entity to assume that the hedged forecasted transaction in a cash flow hedge is probable of occurring. The Company is continuing to identify and analyze existing agreements to determine the effect of reference rate reform on its consolidated financial statements. The Company will continue to evaluate the timing and potential impact of adoption for other optional expedients when deemed necessary.
Future Accounting Changes
Income taxes
In December 2019, the FASB issued new guidance that simplified the accounting for income taxes and clarified existing guidance. This new guidance is effective January 1, 2021, and is not expected to have a material impact on the Company's consolidated financial statements.
130 | TC Energy Consolidated Financial Statements 2020


4.  SEGMENTED INFORMATION
year ended December 31, 2020Canadian Natural Gas PipelinesU.S.
Natural Gas Pipelines
Mexico Natural Gas PipelinesLiquids
Pipelines
Power and Storage
Corporate1
Total
(millions of Canadian $)
Revenues4,469 5,031 716 2,371 412  12,999 
Intersegment revenues 165   20 (185)2 
4,469 5,196 716 2,371 432 (185)12,999 
Income from equity investments12 264 127 75 455 86 31,019 
Plant operating costs and other(1,631)(1,485)(57)(654)(220)169 2(3,878)
Property taxes(284)(337) (101)(5) (727)
Depreciation and amortization(1,273)(801)(117)(332)(67) (2,590)
Net gain /(loss) on sale of assets364    (414) (50)
Segmented earnings1,657 2,837 669 1,359 181 70 6,773 
Interest expense    (2,228)
Allowance for funds used during construction349 
Interest income and other3
    213 
Income before income taxes    5,107 
Income tax expense    (194)
Net income    4,913 
Net income attributable to non-controlling interests   (297)
Net income attributable to controlling interests   4,616 
Preferred share dividends    (159)
Net income attributable to common shares   4,457 
Capital spending
Capital expenditures3,503 2,785 173 1,315 179 58 8,013 
Capital projects in development   122   122 
Contributions to equity investments105   5 655  765 
3,608 2,785 173 1,442 834 58 8,900 
1Includes intersegment eliminations.
2The Company records intersegment sales at contracted rates. For segmented reporting, these transactions are included as Intersegment revenues in the segment providing the service and Plant operating costs and other in the segment receiving the service. These transactions are eliminated on consolidation. Intersegment profit is recognized when the product or service has been provided to third parties or otherwise realized.
3Income from equity investments includes the Company's proportionate share of Sur de Texas foreign exchange gains and losses on the peso-denominated loans from affiliates which are fully offset in Interest income and other by the corresponding foreign exchange losses and gains on the affiliate receivable balance. Refer to Note 10, Loans receivable from affiliates, for additional information.
TC Energy Consolidated Financial Statements 2020 | 131


year ended December 31, 2019Canadian Natural Gas PipelinesU.S.
Natural Gas Pipelines
Mexico Natural Gas PipelinesLiquids
Pipelines
Power and Storage
Corporate1
Total
(millions of Canadian $)
Revenues4,010 4,978 603 2,879 785 — 13,255 
Intersegment revenues 164   19 (183)2— 
4,010 5,142 603 2,879 804 (183)13,255 
Income /(loss) from equity investments12 264 56 70 571 (53)3920 
Plant operating costs and other(1,473)(1,581)(54)(728)(243)166 2(3,913)
Commodity purchases resold    (365) (365)
Property taxes(275)(345) (101)(6) (727)
Depreciation and amortization(1,159)(754)(115)(341)(95) (2,464)
Net gain /(loss) on assets sold/held for sale 21  69 (211) (121)
Segmented earnings /(losses)1,115 2,747 490 1,848 455 (70)6,585 
Interest expense    (2,333)
Allowance for funds used during construction475 
Interest income and other3
    460 
Income before income taxes    5,187 
Income tax expense    (754)
Net income    4,433 
Net income attributable to non-controlling interests   (293)
Net income attributable to controlling interests   4,140 
Preferred share dividends    (164)
Net income attributable to common shares   3,976 
Capital spending
Capital expenditures3,900 2,500 323 239 481 32 7,475 
Capital projects in development6   701   707 
Contributions to equity investments 16 34 14 538  602 
3,906 2,516 357 954 1,019 32 8,784 
1Includes intersegment eliminations.
2The Company records intersegment sales at contracted rates. For segmented reporting, these transactions are included as Intersegment revenues in the segment providing the service and Plant operating costs and other in the segment receiving the service. These transactions are eliminated on consolidation. Intersegment profit is recognized when the product or service has been provided to third parties or otherwise realized.
3Income /(loss) from equity investments includes the Company's proportionate share of Sur de Texas foreign exchange losses and gains on the peso-denominated loans from affiliates which are fully offset in Interest income and other by the corresponding foreign exchange gains and losses on the affiliate receivable balance. Refer to Note 10, Loans receivable from affiliates, for additional information.
132 | TC Energy Consolidated Financial Statements 2020


year ended December 31, 2018Canadian Natural Gas PipelinesU.S.
Natural Gas Pipelines
Mexico Natural Gas PipelinesLiquids
Pipelines
Power and Storage
Corporate1
Total
(millions of Canadian $)
Revenues4,038 4,314 619 2,584 2,124 — 13,679 
Intersegment revenues 162   56 (218)2— 
4,038 4,476 619 2,584 2,180 (218)13,679 
Income from equity investments12 256 22 64 355 5 3714 
Plant operating costs and other(1,405)(1,368)(34)(630)(315)159 2(3,593)
Commodity purchases resold    (1,486) (1,486)
Property taxes(266)(199) (98)(6) (569)
Depreciation and amortization(1,129)(664)(97)(341)(119) (2,350)
Goodwill and other asset impairment charges (801)    (801)
Net gain on sale of assets    170  170 
Segmented earnings /(losses)1,250 1,700 510 1,579 779 (54)5,764 
Interest expense    (2,265)
Allowance for funds used during construction526 
Interest income and other3
    (76)
Income before income taxes    3,949 
Income tax expense    (432)
Net income    3,517 
Net loss attributable to non-controlling interests   185 
Net income attributable to controlling interests   3,702 
Preferred share dividends    (163)
Net income attributable to common shares   3,539 
Capital spending
Capital expenditures2,442 5,591 463 110 767 45 9,418 
Capital projects in development36 1  459   496 
Contributions to equity investments 179 334 12 490  1,015 
2,478 5,771 797 581 1,257 45 10,929 
1Includes intersegment eliminations.
2The Company records intersegment sales at contracted rates. For segmented reporting, these transactions are included as Intersegment revenues in the segment providing the service and Plant operating costs and other in the segment receiving the service. These transactions are eliminated on consolidation. Intersegment profit is recognized when the product or service has been provided to third parties or otherwise realized.
3Income from equity investments includes the Company's proportionate share of Sur de Texas foreign exchange gains and losses on the peso-denominated loans from affiliates which are fully offset in Interest income and other by the corresponding foreign exchange losses and gains on the affiliate receivable balance. Refer to Note 10, Loans receivable from affiliates, for additional information.
TC Energy Consolidated Financial Statements 2020 | 133


at December 3120202019
(millions of Canadian $)
Total Assets by segment
Canadian Natural Gas Pipelines22,852 21,983 
U.S. Natural Gas Pipelines43,217 41,627 
Mexico Natural Gas Pipelines7,215 7,207 
Liquids Pipelines16,744 15,931 
Power and Storage5,062 7,788 
Corporate5,210 4,743 
100,300 99,279 
Geographic Information
year ended December 31202020192018
(millions of Canadian $)
Revenues   
Canada – domestic4,392 4,059 4,187 
Canada – export1,059 1,035 1,075 
United States6,832 7,558 7,798 
Mexico 716 603 619 
 12,999 13,255 13,679 
at December 3120202019
(millions of Canadian $)
Plant, Property and Equipment  
Canada24,092 23,362 
United States39,698 36,184 
Mexico5,985 5,943 
 69,775 65,489 
134 | TC Energy Consolidated Financial Statements 2020


5. REVENUES
Disaggregation of Revenues
year ended December 31, 2020Canadian
Natural
Gas
Pipelines
U.S.
Natural
Gas
Pipelines
Mexico
Natural
Gas
Pipelines
Liquids PipelinesPower and StorageTotal
(millions of Canadian $)
Revenues from contracts with customers
Capacity arrangements and transportation4,408 4,301 607 2,206  11,522 
Power generation    192 192 
Natural gas storage and other1
61 654 109 3 106 933 
4,469 4,955 716 2,209 298 12,647 
Other revenues2,3
 76  162 114 352 
4,469 5,031 716 2,371 412 12,999 
1Includes $138 million of fee revenues from affiliates, of which $77 million is related to the construction of the Sur de Texas pipeline which is 60 per cent owned by TC Energy and $61 million is related to development and construction of the Coastal GasLink pipeline project which is 35 per cent owned by TC Energy as at December 31, 2020. Refer to Note 27, Acquisitions and dispositions, for additional information.
2Other revenues include income from the Company's marketing activities, financial instruments and lease arrangements. Refer to Note 8, Leases, and Note 25, Risk management and financial instruments, for additional information on income from lease arrangements and financial instruments, respectively.
3Other revenues from U.S. Natural Gas Pipelines include the amortization of the net regulatory liabilities resulting from U.S. Tax Reform. Refer to Note 17, Income taxes, for additional information.
year ended December 31, 2019Canadian
Natural
Gas
Pipelines
U.S.
Natural
Gas
Pipelines
Mexico
Natural
Gas
Pipelines
Liquids PipelinesPower and StorageTotal
(millions of Canadian $)
Revenues from contracts with customers
Capacity arrangements and transportation4,010 4,245 601 2,423  11,279 
Power generation    662 662 
Natural gas storage and other 650 2 4 73 729 
4,010 4,895 603 2,427 735 12,670 
Other revenues1,2
 83  452 50 585 
4,010 4,978 603 2,879 785 13,255 
1Other revenues include income from the Company's marketing activities, financial instruments and lease arrangements. Refer to Note 8, Leases, and Note 25, Risk management and financial instruments, for additional information on income from lease arrangements and financial instruments, respectively.
2Other revenues from U.S. Natural Gas Pipelines include the amortization of the net regulatory liabilities resulting from U.S. Tax Reform. Refer to Note 17, Income taxes, for additional information.
year ended December 31, 2018Canadian
Natural
Gas
Pipelines
U.S.
Natural
Gas
Pipelines
Mexico
Natural
Gas
Pipelines
Liquids PipelinesPower and StorageTotal
(millions of Canadian $)
Revenues from contracts with customers
Capacity arrangements and transportation4,038 3,549 614 2,079  10,280 
Power generation    1,771 1,771 
Natural gas storage and other 654 5 3 81 743 
4,038 4,203 619 2,082 1,852 12,794 
Other revenues1,2
 111  502 272 885 
4,038 4,314 619 2,584 2,124 13,679 
1Other revenues include income from the Company's marketing activities, financial instruments and lease arrangements. Refer to Note 8, Leases, and Note 25, Risk management and financial instruments, for additional information on income from lease arrangements and financial instruments, respectively.
2Other revenues from U.S. Natural Gas Pipelines include the amortization of the net regulatory liabilities resulting from U.S. Tax Reform. Refer to Note 17, Income taxes, for additional information.
TC Energy Consolidated Financial Statements 2020 | 135


Contract Balances
at December 3120202019
Affected line item on
Consolidated balance sheet
(millions of Canadian $)
Receivables from contracts with customers1,330 1,458 Accounts receivable
Contract assets (Note 6)
132 153 Other current assets
Long-term contract assets (Note 13)192 102 Other long-term assets
Contract liabilities1 (Note 15)
129 61 Accounts payable and other
Long-term contract liabilities (Note 16)
203 226 Other long-term liabilities
1During the year ended December 31, 2020, $18 million (2019 – $6 million) of revenues were recognized that were included in contract liabilities at the beginning of the year.
Contract assets and long-term contract assets primarily relate to the Company’s right to revenues for services completed but not invoiced at the reporting date on long-term committed capacity natural gas pipelines contracts. The change in contract assets is primarily related to the transfer to Accounts receivable when these rights become unconditional and the customer is invoiced, as well as the recognition of additional revenues that remain to be invoiced. Contract liabilities and long-term contract liabilities primarily relate to force majeure fixed capacity payments received on long-term capacity arrangements in Mexico.
Future Revenues from Remaining Performance Obligations
As at December 31, 2020, future revenues from long-term pipeline capacity arrangements and transportation as well as natural gas storage and other contracts extending through 2047 are approximately $25.5 billion, of which approximately $3.7 billion is expected to be recognized in 2021.
A significant portion of the Company's revenues are considered constrained and therefore not included in the future revenue amounts above as the Company uses the following practical expedients:
right to invoice practical expedient – applied to all U.S. and certain Mexico rate-regulated natural gas pipeline capacity arrangements and flow-through revenues
variable consideration practical expedient – applied to the following variable revenues:
interruptible transportation service revenues as volumes cannot be estimated
liquids pipelines capacity revenues based on volumes transported
power generation revenues related to market prices that are subject to factors outside the Company's influence
contracts for a duration of one year or less.
In addition, future revenues from the Company's Canadian natural gas pipelines' regulated firm capacity contracts include fixed revenues only for the time periods that approved tolls under current rate settlements are in effect and certain, which is currently one year.
6.  OTHER CURRENT ASSETS
at December 3120202019
(millions of Canadian $)
Fair value of derivative contracts (Note 25)235 190 
Cash provided as collateral 142 52 
Contract assets (Note 5)132 153 
Regulatory assets (Note 11)131 43 
Prepaid expenses126 60 
Other114 129 
 880 627 

136 | TC Energy Consolidated Financial Statements 2020


7.  PLANT, PROPERTY AND EQUIPMENT
 20202019
at December 31CostAccumulated
Depreciation
Net
Book Value
CostAccumulated
Depreciation
Net
Book Value
(millions of Canadian $)
Canadian Natural Gas Pipelines
NGTL System      
Pipeline14,190 5,278 8,912 11,556 4,846 6,710 
Compression5,421 1,906 3,515 4,205 1,771 2,434 
Metering and other1,393 648 745 1,296 609 687 
 21,004 7,832 13,172 17,057 7,226 9,831 
Under construction1,402  1,402 3,181  3,181 
 22,406 7,832 14,574 20,238 7,226 13,012 
Canadian Mainline      
Pipeline10,297 7,443 2,854 10,145 7,109 3,036 
Compression3,930 3,000 930 3,867 2,823 1,044 
Metering and other637 239 398 643 219 424 
 14,864 10,682 4,182 14,655 10,151 4,504 
Under construction150  150 60  60 
 15,014 10,682 4,332 14,715 10,151 4,564 
Other Canadian Natural Gas Pipelines1
Other1,885 1,508 377 1,861 1,455 406 
Under construction2
42  42 1,276  1,276 
1,927 1,508 419 3,137 1,455 1,682 
39,347 20,022 19,325 38,090 18,832 19,258 
U.S. Natural Gas Pipelines
Columbia Gas     
Pipeline10,198 557 9,641 9,708 389 9,319 
Compression4,287 276 4,011 4,094 206 3,888 
Metering and other3,388 185 3,203 3,244 125 3,119 
 17,873 1,018 16,855 17,046 720 16,326 
Under construction1,070  1,070 425  425 
 18,943 1,018 17,925 17,471 720 16,751 
ANR      
Pipeline1,685 512 1,173 1,594 472 1,122 
Compression2,146 489 1,657 2,050 436 1,614 
Metering and other1,289 388 901 1,245 355 890 
 5,120 1,389 3,731 4,889 1,263 3,626 
Under construction431  431 252  252 
 5,551 1,389 4,162 5,141 1,263 3,878 
TC Energy Consolidated Financial Statements 2020 | 137


 20202019
at December 31CostAccumulated
Depreciation
Net
Book Value
CostAccumulated
Depreciation
Net
Book Value
(millions of Canadian $)
Other U.S. Natural Gas Pipelines
Columbia Gulf2,638 151 2,487 2,597 114 2,483 
GTN2,330 1,008 1,322 2,257 969 1,288 
Great Lakes2,117 1,223 894 2,090 1,208 882 
Other3
1,568 578 990 1,530 616 914 
8,653 2,960 5,693 8,474 2,907 5,567 
Under construction389  389 164  164 
9,042 2,960 6,082 8,638 2,907 5,731 
33,536 5,367 28,169 31,250 4,890 26,360 
Mexico Natural Gas Pipelines
Pipeline2,952 411 2,541 2,988 340 2,648 
Compression480 69 411 486 54 432 
Metering and other624 133 491 643 124 519 
4,056 613 3,443 4,117 518 3,599 
Under construction2,525  2,525 2,321  2,321 
6,581 613 5,968 6,438 518 5,920 
Liquids Pipelines      
Keystone Pipeline System      
Pipeline9,254 1,579 7,675 9,378 1,403 7,975 
Pumping equipment1,025 228 797 1,035 204 831 
Tanks and other3,522 644 2,878 3,488 556 2,932 
 13,801 2,451 11,350 13,901 2,163 11,738 
Under construction4
2,870  2,870 47  47 
16,671 2,451 14,220 13,948 2,163 11,785 
Intra-Alberta Pipelines
Pipeline142 6 136 138 2 136 
Tanks and other56 3 53 56 2 54 
198 9 189 194 4 190 
 16,869 2,460 14,409 14,142 2,167 11,975 
Power and Storage      
Natural Gas1,255 569 686 1,256 522 734 
Natural Gas Storage and Other780 194 586 742 181 561 
 2,035 763 1,272 1,998 703 1,295 
Under construction11  11 6  6 
 2,046 763 1,283 2,004 703 1,301 
Corporate993 372 621 883 208 675 
 99,372 29,597 69,775 92,807 27,318 65,489 
138 | TC Energy Consolidated Financial Statements 2020


1Includes Foothills, Ventures LP and Great Lakes Canada.
2Includes the Coastal GasLink pipeline project at December 31, 2019. On May 22, 2020, the Company completed the sale of a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership and subsequently commenced accounting for its remaining investment using the equity method. Refer to Note 27, Acquisitions and dispositions, for additional information.
3Includes Portland, North Baja, Tuscarora, Crossroads and mineral rights.
4On March 31, 2020, TC Energy announced that it would proceed with construction of the Keystone XL pipeline. As a result, related capitalized development costs of $1.7 billion were transferred to Plant, property and equipment from Capital projects in development within Other long-term assets on the Consolidated balance sheet. On January 20, 2021, the Presidential Permit for the Keystone XL pipeline was revoked. Refer to Note 30, Subsequent events, for additional information.
Bison Impairment
At December 31, 2018, the Company evaluated its investment in its Bison natural gas pipeline for impairment in connection with the termination of certain customer transportation agreements which released the Company from providing any future services. With the loss of these future cash flows and the persistence of unfavourable market conditions which have inhibited system flows on the pipeline, the Company determined that the asset’s remaining carrying value was no longer recoverable and recognized a non-cash impairment charge of $722 million pre tax in its U.S. Natural Gas Pipelines segment. The non-cash charge was recorded in Goodwill and other asset impairment charges in the Consolidated statement of income. As Bison is a TC PipeLines, LP asset, in which the Company had a 25.5 per cent interest, the Company's share of the impairment charge, after tax and net of non-controlling interests, was $140 million.
The termination of the transportation agreements resulted in the receipt of $130 million in termination payments which were recorded in Revenues in 2018. The Company's share of this amount, after tax and net of non-controlling interests, was $25 million.
TC Energy Consolidated Financial Statements 2020 | 139


8.  LEASES
As a Lessee
The Company has operating leases for corporate offices, other various premises, equipment and land. Some leases have an option to renew for periods of one to 25 years, and some may include options to terminate the lease within one year. Payments due under lease contracts include fixed payments plus, for many of the Company's leases, variable payments such as a proportionate share of the buildings' property taxes, insurance and common area maintenance. The Company subleases some of the leased premises.
Operating lease cost was as follows:
year ended December 31
(millions of Canadian $)20202019
Operating lease cost1
124 117 
Sublease income(13)(11)
Net operating lease cost111 106 
1     Includes short-term leases and variable lease costs.
Net rental expense on operating leases in 2018 was $84 million.
Other information related to operating leases is noted in the following tables:
year ended December 31
(millions of Canadian $)20202019
Cash paid for amounts included in the measurement of operating lease liabilities77 76 
ROU assets obtained in exchange for new operating lease liabilities14 9 
at December 3120202019
Weighted average remaining lease term10 years10 years
Weighted average discount rate3.5 %3.5 %
Maturities of operating lease liabilities are as follows:
(millions of Canadian $)20202019
Less than one year72 73 
One to two years61 69 
Two to three years59 59 
Three to four years58 58 
Four to five years54 57 
More than five years269 323 
Total operating lease payments573 639 
Imputed interest(90)(107)
Operating lease liabilities 483 532 
140 | TC Energy Consolidated Financial Statements 2020


The amounts recognized on TC Energy's Consolidated balance sheet for its operating lease liabilities were as follows:
at December 31
(millions of Canadian $)20202019
Accounts payable and other56 56
Other long-term liabilities (Note 16)427 476
483 532
As at December 31, 2020, the carrying value of the ROU assets recorded under operating leases was $473 million (2019 – $530 million) and is included in Plant, property and equipment on the Consolidated balance sheet.
As a Lessor
The Grandview and Bécancour power plants in the Power and Storage segment are accounted for as operating leases. In addition, the Company has long-term PPAs for the sale of power for the Power and Storage lease assets which expire between 2024 and 2026.
The Northern Courier pipeline in the Liquids Pipelines segment was accounted for as an operating lease prior to the July 2019 sale of an 85 per cent equity interest in Northern Courier. The Company uses the equity method to account for its remaining 15 per cent interest in the Company's consolidated financial statements. Refer to Note 27, Acquisitions and dispositions, for additional information.
Some leases contain variable lease payments that are based on operating hours and the reimbursement of variable costs, and options to purchase the underlying asset at fair value or based on a formula considering the remaining fixed payments. Lessees have rights under some leases to terminate under certain circumstances.
The Company also leases liquids tanks which are accounted for as operating leases.
The fixed portion of the operating lease income recorded by the Company for the year ended December 31, 2020 was $130 million (2019 – $180 million). Operating lease income in 2018 was $373 million.
Future lease payments to be received under operating leases are as follows:
(millions of Canadian $)20202019
Less than one year119 123 
One to two years111 116 
Two to three years109 111 
Three to four years109 109 
Four to five years94 109 
More than five years70 164 
612 732 
The cost and accumulated depreciation for facilities accounted for as operating leases was $858 million and $327 million, respectively, at December 31, 2020 (2019 – $834 million and $301 million, respectively).
TC Energy Consolidated Financial Statements 2020 | 141


9.  EQUITY INVESTMENTS
(millions of Canadian $)
Ownership 
 Interest at 
 December 31, 2020
Income /(Loss) from Equity
Investments
Equity
Investments
year ended December 31at December 31
20202019201820202019
Canadian Natural Gas Pipelines      
TQM1
50.0 %12 12 12 90 79 
Coastal GasLink1,2
35.0 %   211  
U.S. Natural Gas Pipelines
Northern Border3
50.0 %100 91 87 521 549 
Millennium47.5 %96 92 75 482 496 
Iroquois4
50.0 %52 54 60 197 241 
Pennant Midstream5
nil 12 17   
OtherVarious16 15 17 120 112 
Mexico Natural Gas Pipelines
Sur de Texas6
60.0 %213 3 27 680 600 
Liquids Pipelines
Grand Rapids1,7
50.0 %53 56 65 998 1,028 
Northern Courier1,8
15.0 %22 14  53 62 
HoustonLink Pipeline1
50.0 %  (1)19 19 
Power and Storage      
Bruce Power1,9
48.4 %439 527 311 3,306 3,256 
Portlands Energy Centre1,10
nil12 35 36   
TransCanada Turbines11
100.0 %4 9 8  64 
  1,019 920 714 6,677 6,506 
1Classified as a non-consolidated VIE. Refer to Note 29, Variable interest entities, for additional information.
2On May 22, 2020, TC Energy completed the sale of a 65 per cent equity interest in Coastal GasLink Pipeline Limited Partnership and subsequently applied the equity method to account for its 35 per cent retained equity interest in the jointly controlled entity. Refer to Note 27, Acquisitions and dispositions, for additional information. At December 31, 2020, the difference between the carrying value of the investment and the underlying equity in the net assets of Coastal GasLink Pipeline Limited Partnership was $188 million due mainly to the fair value assessment of assets at the time of partial monetization.
3At December 31, 2020, the difference between the carrying value of the investment and the underlying equity in the net assets of Northern Border was US$116 million (2019 – US$116 million) due mainly to the fair value assessment of assets at the time of acquisition.
4At December 31, 2020, the difference between the carrying value of the investment and the underlying equity in the net assets of Iroquois was US$39 million (2019 – US$40 million) due mainly to the fair value assessment of the assets at the times of acquisition.
5In August 2019, TC Energy completed the sale of certain Columbia Midstream assets, including the Company's investment in Pennant Midstream. Refer to Note 27, Acquisitions and dispositions, for additional information.
6Sur de Texas was placed into service in September 2019. TC Energy has a 60 per cent equity interest and, as a jointly controlled entity, applies the equity method of accounting. Income from equity investments recorded in the Corporate segment reflects the Company's proportionate share of Sur de Texas foreign exchange gains and losses on the peso-denominated loans from affiliates which are fully offset in Interest income and other in the Consolidated statement of income. At December 31, 2020, the difference between the carrying value of the investment and the underlying equity in the net assets of Sur de Texas was US$79 million (2019 – nil) due mainly to fees earned from the successful construction of the pipeline.
7At December 31, 2020, the difference between the carrying value of the investment and the underlying equity in the net assets of Grand Rapids was $98 million (2019 – $101 million) due mainly to interest capitalized during construction.
8In July 2019, TC Energy completed the sale of an 85 per cent equity interest in Northern Courier, and subsequently applied the equity method to account for its 15 per cent retained equity interest in the jointly controlled entity. Refer to Note 27, Acquisitions and dispositions, for additional information. At December 31, 2020, the difference between the carrying value of the investment and the underlying equity in the net assets of Northern Courier was $56 million (2019 – $62 million) due mainly to the fair value of guarantees and the fair value assessment of assets at the time of partial monetization.
9At December 31, 2020, the difference between the carrying value of the investment and the underlying equity in the net assets of Bruce Power was $796 million (2019 – $829 million) due mainly to capitalized interest and the fair value assessment of assets at the time of acquisition.
10Investment in Portlands Energy Centre was reclassed to Assets held for sale in July 2019 and sold on April 29, 2020. At December 31, 2019, the difference between the carrying value of the investment and the underlying equity in the net assets of Portlands Energy Centre was $76 million due mainly to capitalized interest. Refer to Note 27, Acquisitions and dispositions, for additional information.
11On November 13, 2020, TC Energy purchased the remaining 50 per cent ownership in TransCanada Turbines which was subsequently consolidated. Refer to Note 27, Acquisitions and dispositions, for additional information.
142 | TC Energy Consolidated Financial Statements 2020


Distributions and Contributions
Distributions received from equity investments for the year ended December 31, 2020 were $1,123 million (2019 – $1,399 million; 2018 – $1,106 million). For 2020, all distributions received were included in Cash generated from operations in the Consolidated statement of cash flows. Of the total distributions received in 2019 and 2018, $186 million and $121 million, respectively, were included in Investing activities in the Consolidated statement of cash flows with regard to distributions received from Bruce Power and Northern Border from their respective financing programs.
Contributions made to equity investments for the year ended December 31, 2020 were $765 million (2019 – $602 million; 2018 – $1,015 million) and were included in Investing activities in the Consolidated statement of cash flows. For 2019 and 2018, contributions of $32 million and $179 million, respectively, related to TC Energy's proportionate share of the Sur de Texas debt financing requirements.
Summarized Financial Information of Equity Investments
year ended December 31202020192018
(millions of Canadian $)
Income   
Revenues5,838 5,693 4,836 
Operating and other expenses(3,341)(3,408)(3,545)
Net income2,047 1,990 1,515 
Net income attributable to TC Energy1,019 920 714 
at December 3120202019
(millions of Canadian $)
Balance Sheet  
Current assets2,911 2,305 
Non-current assets26,957 21,865 
Current liabilities(3,727)(2,060)
Non-current liabilities(15,309)(11,461)
10.  LOANS RECEIVABLE FROM AFFILIATES
Related party transactions are conducted in the normal course of business and are measured at the exchange amount, which is the amount of consideration established and agreed to by the related parties.
Coastal GasLink Pipeline Limited Partnership
In conjunction with the equity sale on May 22, 2020, the Company entered into a subordinated demand revolving credit facility with Coastal GasLink Pipeline Limited Partnership (Coastal GasLink LP), which had a capacity of $200 million at December 31, 2020. This facility provides additional short-term liquidity and funding flexibility to the project and bears interest at a floating market-based rate. At December 31, 2020, there were no amounts outstanding on this facility. Refer to Note 27, Acquisitions and dispositions, for additional information.
Sur de Texas
TC Energy holds a 60 per cent equity interest in a joint venture with IEnova to own the Sur de Texas pipeline, for which TC Energy is the operator. In 2017, TC Energy entered into a MXN$21.3 billion unsecured revolving credit facility with the joint venture, which bears interest at a floating rate and matures in March 2022. At December 31, 2020, Loan receivable from affiliate on the Company's Consolidated balance sheet reflected a MXN$20.9 billion or $1.3 billion (2019 – MXN$20.9 billion or $1.4 billion) loan receivable from the Sur de Texas joint venture which represents TC Energy's proportionate share of long-term debt financing to the joint venture.
TC Energy Consolidated Financial Statements 2020 | 143


The Company's Consolidated statement of income reflects the related interest income and foreign exchange impact on this loan receivable which were fully offset upon consolidation with corresponding amounts included in TC Energy’s proportionate share of Sur de Texas equity earnings as follows:
year ended December 31Affected line item in the Consolidated statement of income
(millions of Canadian $)202020192018
Interest income1
110 147 120 Interest income and other
Interest expense2
(110)(147)(120)Income from equity investments
Foreign exchange (losses)/ gains1
(86)53 (5)Interest income and other
Foreign exchange gains /(losses)1
86 (53)5 Income from equity investments
1Included in the Corporate segment.
2Included in the Mexico Natural Gas Pipelines segment.
11.  RATE-REGULATED BUSINESSES
TC Energy's businesses that apply RRA currently include almost all of the Canadian, U.S. and Mexico natural gas pipelines and certain U.S. natural gas storage operations. Rate-regulated businesses account for and report assets and liabilities consistent with the resulting economic impact of the regulators' established rates, provided the rates are designed to recover the costs of providing the regulated service and the competitive environment makes it probable that such rates can be charged and collected. Certain revenues and expenses subject to utility regulation or rate determination that would otherwise be reflected in the statement of income are deferred on the balance sheet and are expected to be recovered from or refunded to customers in future service rates.
Canadian Regulated Operations
The majority of TC Energy's Canadian natural gas pipelines are regulated by the CER under the Canadian Energy Regulator Act (CER Act). In August 2019, the CER and CER Act replaced the NEB and the National Energy Board Act (NEB Act), respectively. The impact assessment and decision-making for designated major transboundary pipeline projects also changed at that time with the implementation of the new Impact Assessment Act which required designated projects, on a prospective basis, to be assessed by the Impact Assessment Agency of Canada. TC Energy projects submitted to the NEB for review prior to August 28, 2019 will continue to be assessed under the previous NEB Act in accordance with the transitional rules under the CER Act.
The CER regulates the construction and operation of facilities, and the terms and conditions of services, including rates, for the Company's Canadian regulated natural gas transmission systems under federal jurisdiction.
TC Energy's Canadian natural gas transmission services are supplied under natural gas transportation tariffs that provide for cost recovery, including return of and return on capital as approved by the CER or NEB. Rates charged for these services are typically set through a process that involves filing an application with the regulator wherein forecasted operating costs, including a return of and on capital, determine the revenue requirement for the upcoming year or multiple years. To the extent actual costs and revenues are more or less than forecasted costs and revenues, the regulators generally allow the difference to be deferred to a future period and recovered or refunded in rates at that time. Differences between actual and forecasted costs that the regulator does not allow to be deferred are included in the determination of net income in the year they occur. The Company's most significant regulated Canadian natural gas pipelines, based on total operated pipe length, are described below.
144 | TC Energy Consolidated Financial Statements 2020


NGTL System
The NGTL System currently operates under the terms of the 2020-2024 Revenue Requirement Settlement approved by the CER on August 17, 2020. The settlement, effective January 1, 2020, includes an ROE of 10.1 per cent on 40 per cent deemed common equity, provides the NGTL System with the opportunity to increase depreciation rates if tolls fall below projected levels and includes an incentive mechanism for certain operating costs where variances from projected amounts are shared between the NGTL System and its customers. It also includes a mechanism to review the settlement should tolls exceed a pre-determined level, without affecting the equity return.
NGTL System's 2019 and 2018 results reflect the terms of the 2018-2019 Revenue Requirement Settlement which included an ROE of 10.1 per cent on 40 per cent deemed common equity, a mechanism for sharing variances above and below a fixed annual operating, maintenance and administration amount and flow-through treatment of all other costs.
Canadian Mainline
The Canadian Mainline currently operates under the terms of the 2015-2030 Tolls Application approved in 2014 (the NEB 2014 Decision). The terms in the 2015-2020 six-year settlement of the NEB 2014 Decision, which ended December 31, 2020, included an ROE of 10.1 per cent on deemed common equity of 40 per cent, an incentive mechanism that had both upside and downside risk and a $20 million after-tax annual TC Energy contribution to reduce the revenue requirement. Toll stabilization was achieved through the use of deferral accounts, namely the bridging amortization account and the long-term adjustment account (LTAA), to capture the surplus or shortfall between the Company's revenues and cost of service for each year over the 2015-2020 six-year fixed-toll term of the NEB 2014 Decision. The NEB 2014 Decision also directed TC Energy to file an application to review tolls for the 2018-2020 period. In December 2018, an NEB decision was received on the 2018-2020 Tolls Review (NEB 2018 Decision) which included an accelerated amortization of the December 31, 2017 LTAA balance and an increase to the composite depreciation rate from 3.2 per cent to 3.9 per cent.
On April 17, 2020, the CER approved the six-year unanimous negotiated settlement (2021-2026 Mainline Settlement) filed in December 2019. Similar to previous settlements, the 2021-2026 Mainline Settlement maintains a base equity return of 10.1 per cent on 40 per cent deemed common equity and includes an incentive to either achieve cost efficiencies and/or increase revenues on the pipeline with a beneficial sharing mechanism to both the shippers and TC Energy. An estimate of the remaining LTAA balance at the end of 2020 was included as an adjustment in the calculation of Mainline fixed tolls and amortized over the settlement term. Going forward, similar to the LTAA, the short-term adjustment accounts (STAA) captures the surplus or shortfall between system revenues and cost of service each year under the 2021-2026 Mainline Settlement.
U.S. Regulated Operations
TC Energy's U.S. regulated natural gas pipelines operate under the provisions of the Natural Gas Act (NGA)of 1938, the Natural Gas Policy Act of 1978 and the Energy Policy Act of 2005, and are subject to the jurisdiction of FERC. The NGA grants FERC authority over the construction and operation of pipelines and related facilities, including the regulation of tariffs which incorporates maximum and minimum rates for services and allows U.S. regulated natural gas pipelines to discount or negotiate rates on a non-discriminatory basis. The Company's most significant regulated U.S. natural gas pipelines, based on effective ownership and total operated pipe length, are described below.
In 2018, FERC prescribed changes (2018 FERC Actions) related to H.R.1, the Tax Cuts and Jobs Act (U.S. Tax Reform), and income taxes for rate-making purposes in a master limited partnership (MLP) that impact future earnings and cash flows of FERC-regulated pipelines. As part of the 2018 FERC Actions, FERC issued a Revised Policy Statement which created a presumption that entities whose earnings are not taxed through a corporation should not be permitted to recover an income tax allowance in their cost-of-service rates. In addition, FERC established that, to the extent an entity's income tax allowance should be eliminated from rates, it must also eliminate existing accumulated deferred income tax (ADIT) asset and liability balances from its rate base.
These 2018 FERC Actions also established a process and schedule by which all FERC-regulated interstate pipelines and natural gas storage facilities had to either (i) file a new uncontested rate settlement or (ii) file a FERC Form 501-G that quantified the isolated impact of U.S. Tax Reform and provided four options to address the impact for rate-making purposes.
TC Energy Consolidated Financial Statements 2020 | 145


Columbia Gas
Columbia Gas' natural gas transportation and storage services are provided under a tariff at rates subject to FERC approval. A FERC-approved modernization settlement provided for cost recovery and return on investment of up to US$1.5 billion from 2013-2017 to modernize the Columbia Gas system thereby improving system integrity and enhancing service reliability and flexibility. An extension of this settlement was approved by FERC in 2016 which allows for the cost recovery and return on additional expanded scope investment of US$1.1 billion over a three-year period through 2020.
Columbia Gas filed a general NGA Section 4 Rate Case with FERC on July 31, 2020 requesting an increase to Columbia Gas's maximum transportation rates expected to become effective February 1, 2021, subject to refund. The rate case continues to progress as expected, and the Company intends to pursue a collaborative process to reach a mutually beneficial outcome with its customers through settlement negotiations.
ANR Pipeline
ANR Pipeline operates under rates established through a FERC-approved rate settlement in 2016. Under terms of the 2016 settlement, ANR Pipeline is no longer under a rate moratorium and is required to file for new rates to be effective no later than August 1, 2022.
On August 10, 2020, FERC terminated ANR Pipeline's 501-G proceeding and ruled that ANR Pipeline has complied with the one-time reporting requirement. Additionally, FERC stated it will not exercise its right to initiate a NGA Section 5 investigation into ANR’s effective rates at this time but may in the future, if warranted.
Columbia Gulf
Columbia Gulf reached a rate settlement with its customers, which was approved by FERC in December 2019, increasing Columbia Gulf’s recourse rates to take effect on August 1, 2020. This settlement establishes a rate case and tariff filing moratorium through August 1, 2022 and Columbia Gulf is required to file a general rate case under Section 4 of the NGA no later than January 31, 2027, with new rates to be effective August 1, 2027.
TC PipeLines, LP
TC Energy owns a 25.5 per cent interest in TC PipeLines, LP, which has ownership interests in eight wholly-owned or partially-owned natural gas pipelines serving major markets in the U.S. As TC PipeLines, LP is an MLP, all pipelines it owns wholly or in part were impacted by the 2018 FERC Actions which required these pipelines to eliminate their existing ADIT balance from rate base. Refer to Note 17, Income taxes, for additional information regarding the impact of these changes to TC Energy.
Great Lakes
Great Lakes reached a rate settlement with its customers, which was approved by FERC in February 2018, decreasing Great Lakes' maximum transportation rates by 27 per cent effective October 2017. This settlement does not contain a moratorium and Great Lakes will be required to file for new rates no later than March 31, 2022, with new rates to be effective October 1, 2022. In 2018, as a result of the 2018 FERC Actions noted above, Great Lakes made a limited NGA Section 4 filing which had the effect of reducing rates by two per cent from what was in place previously. The reduction in rates became effective on February 1, 2019 after the limited Section 4 filing was accepted by FERC.
On May 11, 2020, FERC terminated Great Lakes’ 501-G proceeding and ruled that Great Lakes has complied with the one-time reporting requirement. Additionally, FERC also stated that rate reductions provided for in its 2017 settlement and the two per cent rate reduction from the limited Section 4 rate reduction proceeding have provided substantial rate relief for Great Lakes’ shippers and, as a result, it will not exercise its right to institute a NGA Section 5 investigation to determine if Great Lakes is over-recovering on its current tariff rates.
Mexico Regulated Operations
TC Energy's Mexico natural gas pipelines are regulated by CRE and operate in accordance with CRE-approved tariffs. The rates in effect on TC Energy's Mexico natural gas pipelines were established based on CRE-approved contracts that provide for cost recovery, including a return of and on invested capital.
146 | TC Energy Consolidated Financial Statements 2020


Regulatory Assets and Liabilities
at December 3120202019
Remaining
Recovery/
Settlement
Period
(years)
(millions of Canadian $)
Regulatory Assets
Deferred income taxes1
1,287 1,088 n/a
Operating and debt-service regulatory assets2
54 2 1
Pensions and other post-retirement benefits1,3
401 417 n/a
Foreign exchange on long-term debt1,4
7 16 
1-9
Other135 107 n/a
 1,884 1,630  
Less: Current portion included in Other current assets (Note 6)131 43  
 1,753 1,587  
Regulatory Liabilities   
Operating and debt-service regulatory liabilities2
48 139 1
Pensions and other post-retirement benefits3
18 35 n/a
ANR-related post-employment and retirement benefits other than pension5
40 41 n/a
Long-term adjustment account6,7
227 660 6
Bridging amortization account6
537 428 10
Pipeline abandonment trust balances8
1,842 1,462 n/a
Cost of removal9
246 253 n/a
Deferred income taxes1
115 151 n/a
Deferred income taxes – U.S. Tax Reform10
1,170 1,239 n/a
Other58 60 n/a
 4,301 4,468  
Less: Current portion included in Accounts payable and other (Note 15)153 696  
 4,148 3,772  
1These regulatory assets and liabilities are underpinned by non-cash transactions or are recovered without an allowance for return as approved by the regulator. Accordingly, these regulatory assets or liabilities are not included in rate base and do not yield a return on investment during the recovery period.
2Operating and debt-service regulatory assets and liabilities represent the accumulation of cost and revenue variances to be included in determination of rates in the following year.
3These balances represent the regulatory offset to pension plan and other post-retirement benefit obligations to the extent the amounts are expected to be collected from or refunded to customers in future rates.
4Foreign exchange on long-term debt of the NGTL System represents the variance resulting from revaluing foreign currency-denominated debt instruments to the current foreign exchange rate from the historical foreign exchange rate at the time of issue. Foreign exchange gains and losses realized when foreign debt matures or is redeemed early are expected to be recovered or refunded through the determination of future tolls.
5This balance represents the amount ANR estimates would be required to refund to its customers for post-retirement and post-employment benefit amounts collected through its FERC-approved rates that have not been used to pay benefits to its employees. Pursuant to a FERC-approved rate settlement, the $40 million (US$32 million) balance at December 31, 2020 is subject to resolution through future regulatory proceedings and, accordingly, a settlement period cannot be determined at this time.
6These regulatory accounts are used to capture Canadian Mainline revenue and cost variances plus toll-stabilization adjustments during the 2015-2030 settlement term.
7Under the terms of the 2021-2026 Mainline Settlement, $223 million will be amortized over the six-year settlement term and the residual of $4 million will be transferred to the STAA.
8This balance represents the amounts collected in tolls from shippers and included in the LMCI restricted investments to fund future abandonment of the Company's CER-regulated pipeline facilities.
9This balance represents anticipated costs of removal that have been, and continue to be, included in depreciation rates and collected in the service rates of certain rate-regulated operations for future costs to be incurred.
10These balances represent the impact of U.S. Tax Reform. The regulatory liabilities will be amortized over varying terms that approximate the expected reversal of the underlying deferred tax liabilities that gave rise to the regulatory liabilities under the Reverse South Georgia Methodology.
TC Energy Consolidated Financial Statements 2020 | 147


12.  GOODWILL
The Company has recorded the following Goodwill on its acquisitions:
(millions of Canadian $)U.S. Natural
Gas Pipelines
Balance at January 1, 201914,178 
Sale of Columbia Midstream assets(595)
Foreign exchange rate changes(696)
Balance at December 31, 201912,887 
Foreign exchange rate changes(208)
Balance at December 31, 202012,679 
As part of the annual goodwill impairment assessment at December 31, 2020, the Company evaluated qualitative factors impacting the fair value of the underlying reporting units. It was determined that it was more likely than not that the fair value of the reporting units exceeded their carrying amounts, including goodwill.
Sale of Columbia Midstream Assets
In August 2019, TC Energy completed the sale of certain Columbia Midstream assets. As these assets constituted a business, and there was goodwill within this reporting unit, $595 million of Columbia's goodwill allocated to these assets was released and netted in the pre-tax gain on sale. The amount released was determined based on the relative fair values of the assets sold and the portion of the reporting unit retained. The fair value of the reporting unit was determined using a discounted cash flow analysis. Refer to Note 27, Acquisitions and dispositions, for additional details.
Tuscarora
In 2018, the Company recorded a goodwill impairment charge of $79 million pre-tax within the U.S. Natural Gas Pipelines segment. The fair value of the reporting unit was determined using a discounted cash flow analysis. This non-cash charge was recorded in Goodwill and other asset impairment charges in the Consolidated statement of income. As Tuscarora is a TC PipeLines, LP asset, the Company's share of this amount, after tax and net of non-controlling interests, was $15 million. The gross goodwill and accumulated impairment losses related to Tuscarora were US$82 million and US$59 million, respectively, on the Consolidated balance sheet at December 31, 2020 and 2019.

148 | TC Energy Consolidated Financial Statements 2020


13.  OTHER LONG-TERM ASSETS
at December 3120202019
(millions of Canadian $)
Capital projects in development231 1,715 
Employee post-retirement benefits (Note 24)207 162 
Long-term contract assets (Note 5)192 102 
Deferred income tax assets (Note 17)177 37 
Fair value of derivative contracts (Note 25)41 7 
Other131 145 
 979 2,168 
Capital Projects in Development
Keystone XL
On March 31, 2020, TC Energy announced that it would proceed with construction of the Keystone XL pipeline and, as a result, $1.7 billion of related capitalized development costs were transferred to Plant, property and equipment. At December 31, 2019, the amount included in Capital projects in development for this project was $1.5 billion.
Reimbursement of Coastal GasLink pipeline project costs
In November 2018, in accordance with provisions in the agreements with the LNG Canada joint venture participants, all five parties elected to collectively reimburse TC Energy $470 million representing costs incurred prior to receiving the Final Investment Decision (FID) on the Coastal GasLink pipeline project (Coastal GasLink). These payments were recorded as a reduction of the carrying value of Coastal GasLink costs which, subsequent to the FID, were reported in Plant, property and equipment until the sale of a 65 per cent equity interest in Coastal GasLink LP on May 22, 2020, at which point TC Energy's remaining investment was recorded in Equity investments. Refer to Note 27, Acquisitions and dispositions, for additional information.

TC Energy Consolidated Financial Statements 2020 | 149


14.  NOTES PAYABLE
 20202019
(millions of Canadian $, unless otherwise noted)Outstanding at December 31Weighted
Average
Interest Rate
per Annum
at December 31
Outstanding at December 31Weighted
Average
Interest Rate
per Annum
at December 31
Canada1
2,836 0.4 %4,034 2.1 %
U.S. (2020 – US$900; 2019 – nil)
1,149 0.4 %  
Mexico (2020 – US$150; 2019 – US$205)2
191 1.7 %266 2.7 %
 4,176  4,300  
1At December 31, 2020, Notes payable consisted of Canadian dollar-denominated notes of $656 million (2019 – $1,353 million) and U.S. dollar-denominated notes of US$1,709 million (2019 – US$2,068 million).
2The demand senior unsecured revolving credit facility for the Company's Mexico subsidiary can be drawn in either Mexican pesos or U.S. dollars, up to the total facility amount of MXN$5.0 billion or the U.S. dollar equivalent.
At December 31, 2020 and 2019, Notes payable reflects short-term borrowings in Canada by TransCanada PipeLines Limited (TCPL) and in Mexico by a wholly-owned Mexican subsidiary. At December 31, 2020, Notes payable also includes short-term borrowings in the U.S. by TransCanada PipeLine USA Ltd. (TCPL USA).
At December 31, 2020, total committed revolving and demand credit facilities were $12.4 billion (2019 – $12.6 billion). When drawn, interest on these lines of credit is charged at negotiated floating rates of Canadian and U.S. banks, and at other negotiated financial bases. These unsecured credit facilities included the following:
at December 31
(billions of Canadian $, unless otherwise noted)20202019
BorrowerDescriptionMaturesTotal Facilities
Unused Capacity 1
Total Facilities
Committed, syndicated, revolving, extendible, senior unsecured credit facilities2:
TCPL
Supports TCPL's Canadian dollar commercial paper program and for general corporate purposes
December 20243.02.33.0
TCPL/TCPL USA/Columbia/TransCanada American Investments Ltd.
Supports TCPL's and TCPL USA's U.S. dollar commercial paper programs and for general corporate purposes of the borrowers, guaranteed by TCPL
December 2021US 4.5US 1.9US 4.5
TCPL/TCPL USA/Columbia/TransCanada American Investments Ltd.
For general corporate purposes of the borrowers, guaranteed by TCPL
December 2022US 1.0US 1.0US 1.0
Demand senior unsecured revolving credit facilities2:
TCPL/TCPL USA
Supports the issuance of letters of credit and provides additional liquidity; TCPL USA facility guaranteed by TCPL
Demand2.1
3
1.12.1
3
Mexico subsidiary
For Mexico general corporate purposes, guaranteed by TCPL
DemandMXN5.0
3
MXN2.0MXN5.0
3
1Net of commercial paper outstanding and facility draws.
2Provisions of various credit arrangements with the Company's subsidiaries can restrict their ability to declare and pay dividends or make distributions under certain circumstances. If such restrictions apply, they may, in turn, have an impact on the Company's ability to declare and pay dividends on common and preferred shares. These credit arrangements also require the Company to comply with various affirmative and negative covenants and maintain certain financial ratios. At December 31, 2020, the Company was in compliance with all debt covenants.
3Or the U.S. dollar equivalent.
150 | TC Energy Consolidated Financial Statements 2020


In second quarter 2020, an additional US$2.0 billion of 364-day committed bilateral credit facilities were established. These credit facilities were extinguished in fourth quarter 2020 as they were no longer required.
For the year ended December 31, 2020, the cost to maintain the above facilities was $21 million (2019 – $11 million; 2018 – $12 million).
At December 31, 2020, certain of the Company's other subsidiaries had an additional $0.8 billion (2019 – $0.8 billion) of undrawn capacity on third-party committed credit facilities.
15.  ACCOUNTS PAYABLE AND OTHER
at December 3120202019
(millions of Canadian $)
Trade payables3,057 3,314 
Regulatory liabilities (Note 11)153 696 
Contract liabilities (Note 5)129 61 
Fair value of derivative contracts (Note 25)72 115 
Other405 358 
 3,816 4,544 
16.  OTHER LONG-TERM LIABILITIES
at December 3120202019
(millions of Canadian $)
Employee post-retirement benefits (Note 24)503 540 
Operating lease obligations (Note 8)427 476 
Long-term contract liabilities (Note 5)203 226 
Fair value of derivative contracts (Note 25)59 81 
Asset retirement obligations54 62 
Guarantees30 32 
Other199 197 
 1,475 1,614 

TC Energy Consolidated Financial Statements 2020 | 151


17.  INCOME TAXES
Provision for Income Taxes
year ended December 31202020192018
(millions of Canadian $)
Current   
Canada(54)84 65 
Foreign1
306 615 250 
 252 699 315 
Deferred   
Canada(224)(29)49 
Foreign166 84 235 
Foreign – U.S. Tax Reform and 2018 FERC Actions  (167)
 (58)55 117 
Income Tax Expense194 754 432 
1The 2019 current foreign income tax expense mainly relates to the sale of certain Columbia Midstream assets in August 2019. Refer to Note 27, Acquisitions and dispositions, for additional information.
Geographic Components of Income before Income Taxes
year ended December 31202020192018
(millions of Canadian $)
Canada691 1,144 433 
Foreign4,416 4,043 3,516 
Income before Income Taxes5,107 5,187 3,949 
Reconciliation of Income Tax Expense
year ended December 31202020192018
(millions of Canadian $)
Income before income taxes5,107 5,187 3,949 
Federal and provincial statutory tax rate24.0 %26.5 %27.0 %
Expected income tax expense1,226 1,375 1,066 
Valuation allowance releases(400)(259)— 
Foreign income tax rate differentials(258)(180)(432)
Income tax differential related to regulated operations(228)(159)(54)
(Income)/ loss from non-controlling interests and equity investments(141)(78)50 
Alberta tax rate reduction (32) 
Non-taxable portion of capital gains(62)(28)(11)
Non-deductible goodwill on the Columbia Midstream asset disposition 154  
U.S. Tax Reform and 2018 FERC Actions  (167)
Other57 (39)(20)
Income Tax Expense194 754 432 

152 | TC Energy Consolidated Financial Statements 2020


Deferred Income Tax Assets and Liabilities
at December 3120202019
(millions of Canadian $)
Deferred Income Tax Assets  
Tax loss and credit carryforwards1,389 1,046 
Regulatory and other deferred amounts532 692 
Difference in accounting and tax bases of impaired assets and assets held for sale537 538 
Unrealized foreign exchange losses on long-term debt154 260 
Financial instruments48 23 
Other70 70 
 2,730 2,629 
Less: Valuation allowance243 673 
2,487 1,956 
Deferred Income Tax Liabilities  
Difference in accounting and tax bases of plant, property and equipment 6,661 6,197 
Equity investments1,087 1,087 
Taxes on future revenue requirement287 232 
Other81 106 
 8,116 7,622 
Net Deferred Income Tax Liabilities5,629 5,666 
The above deferred tax amounts have been classified on the Consolidated balance sheet as follows:
at December 3120202019
(millions of Canadian $)
Deferred Income Tax Assets  
Other long-term assets (Note 13)177 37 
Deferred Income Tax Liabilities  
Deferred income tax liabilities5,806 5,703 
Net Deferred Income Tax Liabilities5,629 5,666 
At December 31, 2020, the Company has recognized the benefit of non-capital loss carryforwards of $3,671 million (2019 – $1,929 million) for federal and provincial purposes in Canada, which expire from 2030 to 2040. The Company has not yet recognized the benefit of capital loss carryforwards of $253 million (2019 – $598 million) for federal and provincial purposes in Canada, with no expiry date. The Company also has Ontario minimum tax credits of $106 million (2019 – $102 million), which expire from 2026 to 2040.
At December 31, 2020, the Company has fully recognized the benefit of net operating loss carryforwards of US$849 million (2019 – US$1,098 million) for federal purposes in the U.S., which expire from 2029 to 2037.
At December 31, 2020, the Company has recognized the benefit of net operating loss carryforwards of US$13 million (2019 – US$4 million) in Mexico, which expire from 2024 to 2030.
TC Energy Consolidated Financial Statements 2020 | 153


TC Energy recorded an income tax valuation allowance of $243 million and $673 million against the deferred income tax asset balances at December 31, 2020 and 2019, respectively. The decrease in the valuation allowance in 2020 is primarily a result of the foreign exchange movement on unrecognized capital losses, realized capital gains and valuation allowance releases. At each reporting date, the Company considers new evidence, both positive and negative, that could affect its view of the future realization of deferred tax assets. As at December 31, 2020, the Company determined there was sufficient positive evidence to conclude that it is more likely than not that the net deferred tax assets will be realized.
The Company recorded $400 million in valuation allowance releases in 2020 primarily a result of the final investment decision to proceed with the construction of the Keystone XL pipeline, the sale of the Ontario natural gas-fired power plants and the sale of a 65 per cent equity interest in Coastal GasLink LP. Refer to Note 27, Acquisitions and dispositions, for additional information on the sale of the Ontario natural gas-fired power plants and Coastal GasLink LP equity sale, and refer to Note 30, Subsequent events, for additional information on the Keystone XL pipeline.
Unremitted Earnings of Foreign Investments
Income taxes have not been provided on the unremitted earnings of foreign investments that the Company does not intend to repatriate in the foreseeable future. Deferred income tax liabilities would have increased at December 31, 2020 by approximately $684 million (2019 – $648 million) if there had been a provision for these taxes.
Income Tax Payments
Income tax payments of $252 million, net of refunds, were made in 2020 (2019 – payments, net of refunds, of $713 million; 2018 – payments, net of refunds, of $338 million).
Reconciliation of Unrecognized Tax Benefit
Below is the reconciliation of the annual changes in the total unrecognized tax benefit:
at December 31202020192018
(millions of Canadian $)
Unrecognized tax benefit at beginning of year29 19 15 
Gross increases – tax positions in prior years26 13 13 
Gross decreases – tax positions in prior years(2)(1)(5)
Gross increases – tax positions in current year1   
Lapse of statutes of limitations(2)(2)(4)
Unrecognized Tax Benefit at End of Year52 29 19 
Subject to the results of audit examinations by taxing authorities and other legislative amendments, TC Energy does not anticipate further adjustments to the unrecognized tax benefits during the next 12 months that would have a material impact on its financial statements.
TC Energy and its subsidiaries are subject to either Canadian federal and provincial income tax, U.S. federal, state and local income tax or the relevant income tax in other international jurisdictions. The Company has substantially concluded all Canadian federal and provincial income tax matters for the years through 2012. Substantially all material U.S. federal, state and local income tax matters have been concluded for years through 2014. Substantially all material Mexico income tax matters have been concluded for years through 2013.
TC Energy's practice is to recognize interest and penalties related to income tax uncertainties in Income tax expense. Income tax expense for the year ended December 31, 2020 reflects $4 million of interest expense (2019 – $4 million of interest expense; 2018 – $1 million of interest recovery). At December 31, 2020, the Company had accrued $11 million in interest expense (December 31, 2019 – $7 million). The Company incurred no penalties associated with income tax uncertainties related to Income tax expense for the years ended December 31, 2020, 2019 and 2018 and no penalties were accrued as at December 31, 2020 and 2019.

154 | TC Energy Consolidated Financial Statements 2020


U.S. Tax Reform and FERC Actions
In 2017, U.S. Tax Reform was signed into law and the enacted U.S. federal corporate income tax rate was reduced from 35 per cent to 21 per cent effective January 1, 2018. This resulted in a remeasurement of existing deferred income tax assets and deferred income tax liabilities related to the Company's U.S. businesses to reflect the new lower income tax rate as at December 31, 2017. Given the significance of the legislation, SEC registrants were allowed to record provisional amounts at December 31, 2017 which could be adjusted as additional information became available, prepared or analyzed for a period not to exceed one year. The Company recognized further adjustments to the provisional amount in 2018.
In accordance with FERC Form 501-G and uncontested rate settlement filings, the ADIT balances for all pipelines held wholly or in part by TC PipeLines, LP were eliminated from their respective rate bases. As a result, net regulatory liabilities recorded for these assets pursuant to U.S. Tax Reform were written off, resulting in a further deferred income tax recovery of $115 million in 2018.
Under U.S. Tax Reform, the U.S. Treasury and the U.S. Internal Revenue Service issued final base erosion and anti-abuse tax regulations in 2019 and final anti-hybrid rules on April 7, 2020. The finalization of these regulations did not have a material impact on the Company's consolidated financial statements at December 31, 2020.
Mexico Tax Reform
In 2019, Mexico passed tax reform legislation related to, among other things, interest deductibility and tax reporting. These changes did not have a material impact on the Company's consolidated financial statements at December 31, 2020.
Alberta Rate Reduction
On December 9, 2020, the Government of Alberta enacted the reduction of the corporate income tax rate to eight per cent effective July 1, 2020. This change did not have a material impact on the Company's consolidated financial statements at December 31, 2020.
TC Energy Consolidated Financial Statements 2020 | 155


18.  LONG-TERM DEBT
  20202019
Outstanding amountsMaturity DatesOutstanding at December 31
Interest
Rate1
Outstanding at December 31
Interest
Rate1
(millions of Canadian $, unless otherwise noted)
TRANSCANADA PIPELINES LIMITED     
Debentures     
Canadian  250 11.8 %
U.S. (2020 and 2019 – US$400)
2021510 9.9 %518 9.9 %
Medium Term Notes     
Canadian2021 to 204911,491 4.5 %9,491 4.6 %
Senior Unsecured Notes     
U.S. (2020 – US$14,292; 2019 – US$14,792)
2022 to 204918,227 5.3 %19,174 5.2 %
  30,228  29,433  
NOVA GAS TRANSMISSION LTD.     
Debentures and Notes     
Canadian2024100 9.9 %100 9.9 %
U.S. (2020 and 2019 – US$200)
2023255 7.9 %259 7.9 %
Medium Term Notes     
Canadian2025 to 2030504 7.4 %504 7.4 %
U.S. (2020 and 2019 – US$33)
202642 7.5 %42 7.5 %
 901  905  
COLUMBIA PIPELINE GROUP, INC.
Senior Unsecured Notes
U.S. (2020 – US$1,500; 2019 – US$2,250)2
2025 to 20451,913 4.9 %2,916 4.4 %
TC PIPELINES, LP     
Unsecured Term Loan
U.S. (2020 and 2019 – US$450)
2022574 1.4 %583 2.9 %
Senior Unsecured Notes
U.S. (2020 and 2019 – US$1,200)
2021 to 20271,530 4.4 %1,556 4.4 %
  2,104  2,139  
ANR PIPELINE COMPANY     
Senior Unsecured Notes     
U.S. (2020 and 2019 – US$672)
2021 to 2026858 7.2 %872 7.2 %
GAS TRANSMISSION NORTHWEST LLC    
Senior Unsecured Notes
U.S. (2020 - US$325; 2019 – US$250)
2030 to 2035415 4.3 %324 5.6 %
GREAT LAKES GAS TRANSMISSION LIMITED PARTNERSHIP    
Senior Unsecured Notes
 
    
U.S. (2020 – US$198; 2019 – US$219)
2021 to 2030253 7.6 %284 7.7 %
156 | TC Energy Consolidated Financial Statements 2020


  20202019
Outstanding amountsMaturity DatesOutstanding at December 31
Interest
Rate1
Outstanding at December 31
Interest
Rate1
(millions of Canadian $, unless otherwise noted)
PORTLAND NATURAL GAS TRANSMISSION SYSTEM
Unsecured Loan Facility
U.S. (2020 – US$25; 2019 – US$39)
202332 1.3 %51 3.0 %
Senior Unsecured Notes
U.S. (2020 – US$125 ; 2019 – nil)
2030159 2.8 %  
191 51 
TUSCARORA GAS TRANSMISSION COMPANY    
Unsecured Term Loan
U.S. (2020 and 2019 – US$23)
202129 2.2 %30 2.8 %
NORTH BAJA PIPELINE, LLC
Unsecured Term Loan
U.S. (2020 and 2019 – US$50)
202164 1.2 %65 2.8 %
36,956 37,019 
Current portion of long-term debt (1,972) (2,705) 
Unamortized debt discount and issue costs(238)(228)
Fair value adjustments3
167 194 
  34,913  34,280  
1Interest rates are the effective interest rates except for those pertaining to long-term debt issued for the Company's Canadian regulated natural gas operations, in which case the weighted average interest rate is presented as approved by the regulators. The effective interest rate is calculated by discounting the expected future interest payments, adjusted for loan fees, premiums and discounts. Weighted average and effective interest rates are stated as at the respective outstanding dates.
2Certain subsidiaries of Columbia have guaranteed the principal payments of Columbia’s senior unsecured notes. Each guarantor of Columbia's obligations is required to comply with covenants under the debt indenture and in the event of default, the guarantors would be obligated to pay the principal and related interest.
3The fair value adjustments include $167 million (2019 – $193 million) related to the acquisition of Columbia. In 2019, these adjustments also included an increase of $1 million related to hedged interest rate risk. Refer to Note 25, Risk management and financial instruments, for additional information.
Principal Repayments
At December 31, 2020, principal repayments for the next five years on the Company's long-term debt are approximately as follows:
(millions of Canadian $)20212022202320242025
Principal repayments on long-term debt1,9721,9011,8612862,712
TC Energy Consolidated Financial Statements 2020 | 157


Long-Term Debt Issued
The Company issued long-term debt over the three years ended December 31, 2020 as follows:
(millions of Canadian $, unless otherwise noted)
Company Issue Date Type Maturity DateAmount Interest Rate
TRANSCANADA PIPELINES LIMITED
April 2020Senior Unsecured NotesApril 2030US 1,2504.10 %
April 2020Medium Term NotesApril 20272,0003.80 %
September 2019Medium Term NotesSeptember 20297003.00 %
September 2019Medium Term NotesJuly 20483004.18 %
1
April 2019Medium Term NotesOctober 20491,0004.34 %
October 2018Senior Unsecured NotesMarch 2049US 1,0005.10 %
October 2018Senior Unsecured NotesMay 2028US 4004.25 %
2
July 2018Medium Term NotesJuly 20488004.18 %
July 2018Medium Term NotesMarch 20282003.39 %
3
May 2018Senior Unsecured NotesMay 2028US 1,0004.25 %
May 2018Senior Unsecured NotesMay 2048US 1,0004.875 %
May 2018Senior Unsecured NotesMay 2038US 5004.75 %
PORTLAND NATURAL GAS TRANSMISSION SYSTEM
October 2020Senior Unsecured NotesOctober 2030US 1252.84 %
April 2018Unsecured Loan FacilityApril 2023US 19Floating
GAS TRANSMISSION NORTHWEST LLC
June 2020Senior Unsecured NotesJune 2030US 1753.12 %
COASTAL GASLINK PIPELINE LIMITED PARTNERSHIP4
April 2020Senior Secured Credit FacilitiesApril 20271,603Floating
NORTHERN COURIER PIPELINE LIMITED PARTNERSHIP5
July 2019Senior Secured NotesJune 20421,0003.365 %
NORTH BAJA PIPELINE, LLC
December 2018Unsecured Term LoanDecember 2021US 50Floating
1Reflects coupon rate on re-opening of a pre-existing Medium Term Notes (MTN) issue. The MTNs were issued at a premium to par, resulting in a re-issuance yield of 3.991 per cent.
2Reflects coupon rate on re-opening of a pre-existing senior unsecured notes issue. The notes were issued at a discount to par, resulting in a re-issuance yield of 4.439 per cent.
3Reflects coupon rate on re-opening of a pre-existing MTN issue. The MTNs were issued at a discount to par, resulting in a re-issuance yield of 3.41 per cent.
4On April 28, 2020, Coastal GasLink LP entered into secured long-term project financing credit facilities. On May 22, 2020, TC Energy completed the sale of a 65 per cent equity interest in Coastal GasLink LP and subsequently accounts for its remaining 35 per cent interest using the equity method. Immediately preceding the equity sale, Coastal GasLink LP made an initial draw of $1.6 billion on the credit facilities, of which approximately $1.5 billion was paid to TC Energy. Refer to Note 27, Acquisitions and dispositions, for additional information.
5In July 2019, subsequent to the Senior Secured Notes issuance, TC Energy completed the sale of an 85 per cent equity interest in Northern Courier and subsequently accounts for its remaining 15 per cent interest using the equity method. Refer to Note 27, Acquisitions and dispositions, for additional information.



158 | TC Energy Consolidated Financial Statements 2020


Long-Term Debt Retired/Repaid
The Company retired/repaid long-term debt over the three years ended December 31, 2020 as follows:
(millions of Canadian $, unless otherwise noted)
Company Retirement/Repayment Date Type Amount Interest Rate
TRANSCANADA PIPELINES LIMITED
November 2020Debentures250 11.80 %
October 2020Senior Unsecured NotesUS 1,0003.80 %
March 20201
Senior Unsecured NotesUS 7504.60 %
November 2019Senior Unsecured NotesUS 7002.125 %
November 2019Senior Unsecured NotesUS 550Floating
May 2019Medium Term Notes13 9.35 %
March 2019Debentures100 10.50 %
January 2019Senior Unsecured NotesUS 7507.125 %
January 2019Senior Unsecured NotesUS 4003.125 %
August 2018Senior Unsecured NotesUS 8506.50 %
March 2018Debentures150 9.45 %
January 2018Senior Unsecured NotesUS 5001.875 %
January 2018Senior Unsecured NotesUS 250Floating
PORTLAND NATURAL GAS TRANSMISSION SYSTEM
October 2020Unsecured Loan FacilityUS 99Floating
May 2018Senior Secured NotesUS 185.90 %
COLUMBIA PIPELINE GROUP, INC.
June 2020Senior Unsecured NotesUS 7503.30 %
June 2018Senior Unsecured NotesUS 5002.45 %
GAS TRANSMISSION NORTHWEST LLC
June 2020Senior Unsecured NotesUS 1005.29 %
May 2019Unsecured Term LoanUS 35Floating
TC PIPELINES, LP
June 2019Unsecured Term LoanUS 50Floating
December 2018Unsecured Term LoanUS 170Floating
GREAT LAKES GAS TRANSMISSION LIMITED PARTNERSHIP
March 2018Senior Unsecured NotesUS 96.73 %
1Related unamortized debt issue costs of $8 million were included in Interest expense in the Consolidated statement of income for the year ended December 31, 2020.
Interest Expense
year ended December 31202020192018
(millions of Canadian $)
Interest on long-term debt1,963 1,931 1,877 
Interest on junior subordinated notes 470 427 391 
Interest on short-term debt46 106 73 
Capitalized interest(294)(186)(124)
Amortization and other financial charges1
43 55 48 
 2,228 2,333 2,265 
1Amortization and other financial charges includes amortization of transaction costs and debt discounts calculated using the effective interest method and losses on derivatives used to manage the Company's exposure to changes in interest rates.
TC Energy Consolidated Financial Statements 2020 | 159


The Company made interest payments of $2,203 million in 2020 (2019 – $2,295 million; 2018 – $2,156 million) on long-term debt, junior subordinated notes and short-term debt, net of interest capitalized.
19.  JUNIOR SUBORDINATED NOTES
  20202019
Outstanding loan amountMaturity
Date
Outstanding at December 31
Effective
Interest Rate1
Outstanding at December 31
Effective
Interest Rate1
(millions of Canadian $, unless otherwise noted)
TRANSCANADA PIPELINES LIMITED     
US$1,000 notes issued 2007 at 6.35%2
20671,275 4.1 %1,296 5.1 %
US$750 notes issued 2015 at 5.875%3,4
2075957 5.0 %972 6.0 %
US$1,200 notes issued 2016 at 6.125%3,4
20761,530 5.8 %1,556 6.7 %
US$1,500 notes issued 2017 at 5.55%3,4
20771,913 4.7 %1,944 5.7 %
$1,500 notes issued 2017 at 4.90%3,4
20771,500 4.5 %1,500 5.4 %
US$1,100 notes issued 2019 at 5.75%3,4
20791,403 5.4 %1,426 6.3 %
8,578 8,694 
Unamortized debt discount and issue costs (80)(80)
8,498 8,614 
1The effective interest rate is calculated by discounting the expected future interest payments using the coupon rate and any estimated future rate resets, adjusted for issue costs and discounts.
2Junior subordinated notes of US$1 billion were issued in 2007 at a fixed rate of 6.35 per cent and converted in 2017 to a floating interest rate that is reset quarterly to the three-month LIBOR plus 2.21 per cent.
3The Junior subordinated notes were issued to TransCanada Trust, a financing trust subsidiary wholly owned by TCPL. While the obligations of TransCanada Trust are fully and unconditionally guaranteed by TCPL on a subordinated basis, the Trust is not consolidated in TC Energy's financial statements since TCPL does not have a variable interest in the Trust and the only substantive assets of the Trust are junior subordinated notes of TCPL.
4The coupon rate is initially a fixed interest rate for the first 10 years and converts to a floating rate thereafter.
The Junior subordinated notes are subordinated in right of payment to existing and future senior indebtedness or other obligations of TCPL.
In September 2019, TransCanada Trust (the Trust) issued US$1.1 billion of Trust Notes – Series 2019-A to investors with a fixed interest rate of 5.50 per cent for the first 10 years converting to a floating rate thereafter. All of the proceeds of the issuance by the Trust were loaned to TCPL for US$1.1 billion of junior subordinated notes of TCPL at an initial fixed rate of 5.75 per cent, including a 0.25 per cent administration charge. The rate will reset commencing September 2029 until September 2049 to the then three-month LIBOR plus 4.404 per cent per annum; from September 2049 until September 2079, the interest rate will reset to the then three-month LIBOR plus 5.154 per cent per annum. Refer to Note 25, Risk management and financial instruments, for additional information regarding the expected impact to the Company with certain rate settings of LIBOR which may cease to be published at the end of 2021 with full cessation expected by mid-2023. The junior subordinated notes are callable at TCPL's option at any time on or after September 15, 2029 at 100 per cent of the principal amount plus accrued and unpaid interest to the date of redemption.
Pursuant to the terms of the notes issued between the Trust and TCPL (the Trust Notes) and related agreements, in certain circumstances (1) TCPL may issue deferral preferred shares to holders of the Trust Notes in lieu of interest; and (2) TC Energy and TCPL would be prohibited from declaring or paying dividends on or redeeming their outstanding preferred shares (or, if none are outstanding, their respective common shares) until all deferral preferred shares are redeemed by TCPL. The Trust Notes may also be automatically exchanged for preferred shares of TCPL upon certain kinds of bankruptcy and insolvency events. All of these preferred shares would rank equally with any other outstanding first preferred shares of TCPL.
160 | TC Energy Consolidated Financial Statements 2020


20.  REDEEMABLE NON-CONTROLLING INTEREST AND NON-CONTROLLING INTERESTS
Redeemable Non-Controlling Interest
On March 31, 2020, TC Energy announced that it would proceed with construction of the Keystone XL pipeline. As part of the funding plan, the Government of Alberta agreed to invest up to US$1.1 billion as equity in certain Keystone XL subsidiaries of TC Energy. In the year ended December 31, 2020, the Government of Alberta invested $1,033 million in the form of Class A Interests which rank above TC Energy's equity investment in Keystone XL and have certain voting rights.
TC Energy has a call right exercisable at any time to repurchase the Class A Interests from the Government of Alberta. In turn, the Government of Alberta has a put right to sell its Class A Interests to the Company exercisable upon and following the in-service date of the Keystone XL pipeline if certain conditions are met. As a result of these redemption features, the Company classified the Class A Interests as Redeemable non-controlling interest in mezzanine equity on the Consolidated balance sheet. These Class A Interests are entitled to a return in accordance with contractual terms. This return accrues on a quarterly basis and adjusts the carrying value of the Class A Interests accordingly. Refer to Note 30, Subsequent events, for additional information.
At December 31, 2020, TC Energy had reclassified $630 million related to Class A Interests to Current liabilities on the Consolidated balance sheet to reflect the expectation that the Company would exercise its call right in January 2021 in accordance with contractual terms. Redeemable non-controlling interest in Current liabilities of $633 million also included $3 million of return accrued that was recorded in Interest expense in the Consolidated statement of income.
On January 4, 2021, the Company put in place a US$4.1 billion project-level credit facility to support construction of the Keystone XL pipeline, that is fully guaranteed by the Government of Alberta and non-recourse to the Company. The Company drew US$579 million on the credit facility on January 8, 2021, of which US$497 million was used to repurchase a majority of the Government of Alberta’s Class A Interests. The facility bears interest at a floating rate and matures in January 2024.
The changes in Redeemable non-controlling interest classified in mezzanine equity were as follows:
year ended December 312020
(millions of Canadian $)
Balance at beginning of year 
Class A Interests issued1,033 
Net loss attributable to redeemable non-controlling interest1
(10)
Class A Interests transferred to Current liabilities(630)
Balance at end of year393 
1Includes a return accrual and a foreign currency translation loss on Class A Interests, both of which were presented within Net income /(loss) attributable to non-controlling interests in the Consolidated statement of income.
Non-Controlling Interests
TC PipeLines, LP
During 2020 and 2019, the non-controlling interests in TC PipeLines, LP remained at 74.5 per cent and in 2018 ranged between 74.3 per cent and 74.5 per cent due to periodic issuances of common units in TC PipeLines, LP to third parties under an at-the-market issuance program. Refer to Note 28, Commitments, contingencies and guarantees, for additional information on the acquisition of common units of TC PipeLines, LP.
The Company's Non-controlling interests included on the Consolidated balance sheet were as follows:
at December 3120202019
(millions of Canadian $)
Non-controlling interests in TC PipeLines, LP1,682 1,634 
TC Energy Consolidated Financial Statements 2020 | 161


The Company's Net income /(loss) attributable to non-controlling interests included in the Consolidated statement of income were as follows:
year ended December 31202020192018
(millions of Canadian $)
Non-controlling interests in TC PipeLines, LP307 293 (185)
Redeemable non-controlling interest(10) — 
 297 293 (185)
21.  COMMON SHARES
 Number of SharesAmount
(thousands)(millions of Canadian $)
Outstanding at January 1, 2018881,376 21,167 
At-the-market equity issuance program1
20,050 1,118 
Dividend reinvestment and share purchase plan15,937 855 
Exercise of options734 34 
Outstanding at December 31, 2018918,097 23,174 
Dividend reinvestment and share purchase plan15,165 931 
Exercise of options5,138 282 
Outstanding at December 31, 2019938,400 24,387 
Exercise of options1,664 101 
Outstanding at December 31, 2020940,064 24,488 
1Net of issue costs and deferred income taxes.
Common Shares Issued and Outstanding
The Company is authorized to issue an unlimited number of common shares without par value.
TC Energy Corporation At-the-Market Equity Issuance Program
In June 2017, the Company established an At-the-Market Equity Issuance Program (ATM program) that allowed, from time to time, for the issuance of common shares from treasury at the prevailing market price when sold through the Toronto Stock Exchange, the New York Stock Exchange or any other existing trading market for TC Energy common shares in Canada or the United States. This ATM program was effective for a 25-month period and was utilized as appropriate to assist in managing the Company's capital structure. Under the initial ATM program, the Company could issue up to $1.0 billion in common shares or the U.S. dollar equivalent. In June 2018, the Company replenished the capacity available under the program which allowed for the issuance of additional common shares from treasury up to $1.0 billion for a revised aggregate total of $2.0 billion or the U.S. dollar equivalent.
In 2018, 20 million common shares were issued under the above ATM program at an average price of $56.13 per share for proceeds of $1.1 billion, net of approximately $10 million of related commissions and fees. In July 2019, this ATM program expired with no common shares issued under it in 2019.
On December 7, 2020, the Company established a new ATM program that allows for the issuance of up to $1.0 billion in common shares or the U.S. dollar equivalent under substantially similar terms and trading platforms. This ATM program is effective for a 25-month period and will be utilized as appropriate to assist in managing the Company's capital structure. No common shares were issued under this program in 2020.
162 | TC Energy Consolidated Financial Statements 2020


Dividend Reinvestment and Share Purchase Plan
Under the Company's Dividend Reinvestment and Share Purchase Plan (DRP), eligible holders of common and preferred shares of TC Energy can reinvest their dividends and make optional cash payments to obtain additional TC Energy common shares. From July 1, 2016 to October 31, 2019, common shares under the DRP were issued from treasury at a two per cent discount to market prices over a specified period.
Commencing with the dividends declared October 31, 2019, common shares purchased with reinvested cash dividends under the Company's DRP are acquired on the open market at 100 per cent of the weighted average purchase price.
Basic and Diluted Net Income per Common Share
Net income per common share is calculated by dividing Net income attributable to common shares by the weighted average number of common shares outstanding. The weighted average number of shares for the diluted earnings per share calculation includes options exercisable under TC Energy's Stock Option Plan and shares issuable under the DRP up to October 31, 2019 when participation was satisfied with common shares issued from treasury.
Weighted Average Common Shares Outstanding
(millions)202020192018
Basic940 929 902 
Diluted940 931 903 
Stock Options
Number of
Options
(thousands)
Weighted Average Exercise Prices
Weighted Average Remaining Contractual Life (years)
Options outstanding at January 1, 20209,094 $55.77
Options granted1,714 $75.06
Options exercised(1,664)$54.47
Options forfeited/expired(148)$63.95
Options Outstanding at December 31, 20208,996 $59.553.8
Options Exercisable at December 31, 20205,395 $55.742.8
At December 31, 2020, an additional 6,396,168 common shares were reserved for future issuance from treasury under TC Energy's Stock Option Plan. The contractual life of options granted is seven years. Options may be exercised at a price determined at the time the option is awarded and vest equally on the anniversary date in each of the three years following the award. Forfeiture of stock options results from their expiration and, if not previously vested, upon resignation or termination of the option holder's employment.
The Company used a binomial model for determining the fair value of options granted applying the following weighted average assumptions:
year ended December 31202020192018
Weighted average fair value$7.73$6.37$5.80
Expected life (years)1
5.75.75.7
Interest rate1.5 %1.9 %2.1 %
Volatility2
17 %19 %16 %
Dividend yield4.2 %5.0 %4.2 %
1Expected life is based on historical exercise activity.
2Volatility is derived based on the average of both the historical and implied volatility of the Company's common shares.
TC Energy Consolidated Financial Statements 2020 | 163


The amount expensed for stock options, with a corresponding increase in Additional paid-in capital, was $12 million in 2020 (2019 – $13 million; 2018 – $13 million). At December 31, 2020, unrecognized compensation costs related to non-vested stock options were $14 million. The cost is expected to be fully recognized over a weighted average period of 1.7 years.
The following table summarizes additional stock option information:
year ended December 31202020192018
(millions of Canadian $, unless otherwise noted)
Total intrinsic value of options exercised31 75 10 
Total fair value of options that have vested101 143 101 
Total options vested2.0 million2.1 million2.1 million
As at December 31, 2020, the aggregate intrinsic value of the total options exercisable was $5 million and the aggregate intrinsic value of options outstanding was $5 million.
Shareholder Rights Plan
TC Energy's Shareholder Rights Plan is designed to provide the Board of Directors with sufficient time to explore and develop alternatives for maximizing shareholder value in the event of a takeover offer for the Company and to encourage the fair treatment of shareholders in connection with any such offer. Attached to each common share is one right that, under certain circumstances, entitles certain holders to purchase an additional common share of the Company.

164 | TC Energy Consolidated Financial Statements 2020


22.  PREFERRED SHARES
at
December 31,
2020
Number of
Shares
Outstanding
Current Yield
Annual Dividend Per Share1,2
Redemption Price Per ShareRedemption and Conversion Option DateRight to Convert Into
Carrying Value
December 313
202020192018
(thousands)(millions of Canadian $)
Cumulative First Preferred Shares
Series 114,577 3.479 %$0.86975 $25.00 December 31, 2024Series 2360 360 233 
Series 27,423 Floating
4
Floating$25.00 December 31, 2024Series 1179 179 306 
Series 39,997 1.694 %
5
$0.4235 $25.00 June 30, 2025Series 4246 209 209 
Series 44,003 Floating
4
Floating$25.00 June 30, 2025Series 397 134 134 
Series 512,714 2.263 %$0.56575 $25.00 January 30, 2021Series 6310 310 310 
Series 61,286 Floating
4
Floating$25.00 January 30, 2021Series 532 32 32 
Series 724,000 3.903 %
6
$0.97575 $25.00 April 30, 2024Series 8589 589 589 
Series 918,000 3.762 %
6
$0.9405 $25.00 October 30, 2024Series 10442 442 442 
Series 1110,000 3.351 %
7
$0.83775 $25.00 November 28, 2025Series 12244 244 244 
Series 1320,000 5.50 %$1.375 $25.00 May 31, 2021Series 14493 493 493 
Series 1540,000 4.90 %

$1.225 $25.00 May 31, 2022Series 16988 988 988 
3,980 3,980 3,980 
1Each of the even-numbered series of preferred shares, if in existence, will be entitled to receive floating rate cumulative quarterly preferential dividends per share at an annualized rate equal to the 90-day Government of Canada Treasury bill rate (T-bill rate) plus 1.92 per cent (Series 2), 1.28 per cent (Series 4), 1.54 per cent (Series 6), 2.38 per cent (Series 8), 2.35 per cent (Series 10), 2.96 per cent (Series 12), 4.69 per cent (Series 14) or 3.85 per cent (Series 16). These rates reset quarterly with the then current T-Bill rate.
2The odd-numbered series of preferred shares, if in existence, will be entitled to receive fixed rate cumulative quarterly preferential dividends, which will reset on the redemption and conversion option date and every fifth year thereafter, at an annualized rate equal to the then five-year Government of Canada bond yield plus 1.92 per cent (Series 1), 1.28 per cent (Series 3), 1.54 per cent (Series 5), 2.38 per cent (Series 7), 2.35 per cent (Series 9), 2.96 per cent (Series 11), 4.69 per cent, subject to a minimum of 5.50 per cent (Series 13) or 3.85 per cent, subject to a minimum of 4.90 per cent (Series 15).
3Net of underwriting commissions and deferred income taxes.
4The floating quarterly dividend rate for the Series 2 preferred shares is 2.029 per cent for the period starting December 31, 2020 to, but excluding, March 31, 2021. The floating quarterly dividend rate for the Series 4 preferred shares is 1.389 per cent for the period starting December 31, 2020 to, but excluding, March 31, 2021. The floating quarterly dividend rate for the Series 6 preferred shares is 1.676 per cent for the period starting October 30, 2020 to, but excluding, January 30, 2021. These rates will reset each quarter going forward.
5The fixed rate dividend for Series 3 preferred shares decreased from 2.152 per cent to 1.694 per cent on June 30, 2020 and is due to reset on every fifth anniversary thereafter.
6No Series 7 or 9 preferred shares were converted on the April 30, 2019 or October 30, 2019 conversion option dates, respectively. The fixed rate dividend decreased for Series 7 from 4.00 per cent to 3.903 per cent on April 30, 2019 and for Series 9 from 4.250 per cent to 3.762 per cent on October 30, 2019, and are due to reset on every fifth anniversary thereafter.
7No Series 11 were converted on the November 30, 2020 conversion option date. The fixed rate dividend for Series 11 preferred shares decreased from 3.8 per cent to 3.351 per cent on November 30, 2020 and is due to reset on every fifth anniversary thereafter.
The holders of preferred shares are entitled to receive a fixed cumulative quarterly preferential dividend as and when declared by the Board with the exception of Series 2, Series 4 and Series 6 preferred shares. The holders of Series 2, Series 4 and Series 6 preferred shares are entitled to receive quarterly floating rate cumulative preferential dividends as and when declared by the Board. The holders will have the right, subject to certain conditions, to convert their first preferred shares of a specified series into first preferred shares of another specified series on the conversion option date and every fifth anniversary thereafter as indicated in the table above.
TC Energy may, at its option, redeem all or a portion of the outstanding preferred shares for the redemption price per share, plus all accrued and unpaid dividends on the applicable redemption option date and on every fifth anniversary thereafter. In addition, Series 2, Series 4 and Series 6 preferred shares are redeemable by TC Energy at any time other than on a designated date for $25.50 per share plus all accrued and unpaid dividends on such redemption date.
TC Energy Consolidated Financial Statements 2020 | 165


On June 30, 2020, 401,590 Series 3 preferred shares were converted, on a one-for-one basis, into Series 4 preferred shares and 1,865,362 Series 4 preferred shares were converted, on a one-for-one basis, into Series 3 preferred shares.
On December 31, 2019, 173,954 Series 1 preferred shares were converted, on a one-for-one basis, into Series 2 preferred shares and 5,252,715 Series 2 preferred shares were converted, on a one-for-one basis, into Series 1 preferred shares.
23.  OTHER COMPREHENSIVE (LOSS)/ INCOME AND ACCUMULATED OTHER COMPREHENSIVE LOSS (AOCI)
Components of other comprehensive (loss)/ income, including the portion attributable to non-controlling interests and related tax effects, were as follows:
year ended December 31, 2020Before Tax AmountIncome Tax Recovery/(Expense)Net of Tax Amount
(millions of Canadian $)
Foreign currency translation losses on net investment in foreign operations(647)38 (609)
Change in fair value of net investment hedges48 (12)36 
Change in fair value of cash flow hedges(771)188 (583)
Reclassification to net income of gains and losses on cash flow hedges649 (160)489 
Unrealized actuarial gains and losses on pension and other post-retirement benefit plans15 (3)12 
Reclassification to net income of actuarial gains and losses on pension and other post-retirement benefit plans23 (6)17 
Other comprehensive loss on equity investments(373)93 (280)
Other Comprehensive Loss(1,056)138 (918)
year ended December 31, 2019Before Tax AmountIncome Tax Recovery/(Expense)Net of Tax Amount
(millions of Canadian $)
Foreign currency translation losses on net investment in foreign operations(914)(30)(944)
Reclassification to net income of foreign currency translation gains on disposal of foreign operations(13) (13)
Change in fair value of net investment hedges46 (11)35 
Change in fair value of cash flow hedges(78)16 (62)
Reclassification to net income of gains and losses on cash flow hedges19 (5)14 
Unrealized actuarial gains and losses on pension and other post-retirement benefit plans(15)5 (10)
Reclassification to net income of actuarial gains and losses on pension and other post-retirement benefit plans14 (4)10 
Other comprehensive loss on equity investments(114)32 (82)
Other Comprehensive Loss(1,055)3 (1,052)
year ended December 31, 2018Before Tax AmountIncome Tax Recovery/(Expense)Net of Tax Amount
(millions of Canadian $)
Foreign currency translation gains on net investment in foreign operations1,323 35 1,358 
Change in fair value of net investment hedges(57)15 (42)
Change in fair value of cash flow hedges(14)4 (10)
Reclassification to net income of gains and losses on cash flow hedges27 (6)21 
Unrealized actuarial gains and losses on pension and other post-retirement benefit plans(153)39 (114)
Reclassification to net income of actuarial gains and losses on pension and other post-retirement benefit plans20 (5)15 
Other comprehensive income on equity investments113 (27)86 
Other Comprehensive Income1,259 55 1,314 
166 | TC Energy Consolidated Financial Statements 2020


The changes in AOCI by component were as follows:
Currency
Translation
Adjustments
Cash Flow
Hedges
Pension and Other Post-Retirement Benefit Plan AdjustmentsEquity Investments
Total1
AOCI balance at January 1, 2018(1,043)(31)(203)(454)(1,731)
Other comprehensive income /(loss) before reclassifications2
1,150 (9)(114)72 1,099 
Amounts reclassified from AOCI 16 1512 43 
Net current period other comprehensive income /(loss)1,150 7 (99)84 1,142 
Reclassification of AOCI to retained earnings resulting from U.S. Tax Reform1(12)(6)(17)
AOCI balance at December 31, 2018107 (23)(314)(376)(606)
Other comprehensive loss before reclassifications2
(824)(49)(10)(86)(969)
Amounts reclassified from AOCI(13)14 105 16 
Net current period other comprehensive loss(837)(35) (81)(953)
AOCI balance at December 31, 2019(730)(58)(314)(457)(1,559)
Other comprehensive (loss)/ income before reclassifications2
(543)(567)12 (292)(1,390)
Amounts reclassified from AOCI3
 482 17 11 510 
Net current period other comprehensive (loss)/ income(543)(85)29 (281)(880)
AOCI balance at December 31, 2020(1,273)(143)(285)(738)(2,439)
1All amounts are net of tax. Amounts in parentheses indicate losses recorded to OCI.
2In 2020, other comprehensive (loss)/ income before reclassifications on currency translation adjustments, cash flow hedges and equity investments are net of non-controlling interest losses of $30 million (2019 – $85 million losses; 2018 – $166 million gains), losses of $16 million (2019 – $13 million losses; 2018 – $1 million losses) and gains of $1 million (2019 – $1 million losses; 2018 – nil), respectively.
3Losses related to cash flow hedges reported in AOCI and expected to be reclassified to net income in the next 12 months are estimated to be $37 million ($28 million, net of tax) at December 31, 2020. These estimates assume constant commodity prices, interest rates and foreign exchange rates over time, however, the amounts reclassified will vary based on the actual value of these factors at the date of settlement.
TC Energy Consolidated Financial Statements 2020 | 167


Details about reclassifications out of AOCI into the Consolidated statement of income were as follows:
 
Amounts Reclassified
From AOCI
Affected Line Item in the Consolidated Statement of Income1
year ended December 31202020192018
(millions of Canadian $)
Cash flow hedges   
Commodities(1)(7)(4)Revenues (Power and Storage)
Interest rate(28)(12)(18)Interest expense
Interest rate(613)  
Net (loss)/ gain on assets sold/held for sale2
(642)(19)(22)Total before tax
160 5 6 Income tax expense
 (482)(14)(16)
Net of tax3
Pension and other post-retirement benefit plan adjustments   
Amortization of actuarial losses(23)(14)(16)
Plant operating costs and other4
Settlement charge  (4)
Plant operating costs and other4
(23)(14)(20)Total before tax
 6 4 5 Income tax expense
 (17)(10)(15)Net of tax
Equity investments
Equity income(15)(8)(16)Income from equity investments
4 3 4 Income tax expense
(11)(5)(12)
Net of tax3
Currency translation adjustments
Foreign currency translation gains on disposal of foreign operations 13  Net (loss)/ gain on assets sold/held for sale
   Income tax expense
 13  Net of tax
1Amounts in parentheses indicate expenses to the Consolidated statement of income.
2Represents a loss of $613 million ($459 million, net of tax) related to a contractually required derivative instrument used to hedge the interest rate risk associated with project-level financing of the Coastal GasLink construction. The derivative instrument was derecognized as part of the sale of a 65 per cent equity interest in Coastal GasLink LP. Refer to Note 27, Acquisitions and dispositions, for additional information.
3Amounts reclassified from AOCI on cash flow hedges and equity investments are net of non-controlling interest losses of $7 million (2019 – nil; 2018 – $5 million gains) and nil (2019 – nil; 2018 – $2 million gains), respectively.
4These AOCI components are included in the computation of net benefit cost. Refer to Note 24, Employee post-retirement benefits, for additional information.
168 | TC Energy Consolidated Financial Statements 2020


24.  EMPLOYEE POST-RETIREMENT BENEFITS
The Company sponsors DB Plans for certain of its employees. Pension benefits provided under the DB Plans are generally based on years of service and highest average earnings over three consecutive years of employment. Effective January 1, 2019, there were certain amendments made to the Canadian DB Plan for new members whereby, subsequent to that date, benefits provided for these new members are based on years of service and highest average earnings over five consecutive years of employment. Upon commencement of retirement, pension benefits in the Canadian DB Plan increase annually by a portion of the increase in the Consumer Price Index. The Company's U.S. DB Plan is closed to non-union new entrants and all non-union hires participate in the DC Plan. Net actuarial gains or losses are amortized out of AOCI over the EARSL of plan participants, which is approximately nine years at December 31, 2020 (2019 and 2018 – nine years).
The Company also provides its employees with savings plans in Canada and Mexico, DC Plans consisting of a 401(k) Plan in the U.S. and post-employment benefits other than pensions, including termination benefits and life insurance and medical benefits beyond those provided by government-sponsored plans. Net actuarial gains or losses for the plans are amortized out of AOCI over the EARSL of employees, which was approximately 11 years at December 31, 2020 (2019 – 11 years; 2018 – 12 years). In 2020, the Company expensed $58 million (2019 – $61 million; 2018 – $59 million) for the savings and DC Plans.
Total cash contributions by the Company for employee post-retirement benefits were as follows:
year ended December 31202020192018
(millions of Canadian $)
DB Plans124 122 103 
Other post-retirement benefit plans9 22 23 
Savings and DC Plans58 61 59 
191 205 185 
Current Canadian pension legislation allows for partial funding of solvency requirements over a number of years through letters of credit in lieu of cash contributions, up to certain limits. As such, in addition to the cash contributions noted above, the Company provided a $13 million letter of credit to the Canadian DB Plan in 2020 (2019 – $12 million; 2018 – $17 million), resulting in a total of $302 million provided to the Canadian DB Plan under letters of credit at December 31, 2020.
The most recent actuarial valuation of the pension plans for funding purposes was as at January 1, 2020 and the next required valuation will be as at January 1, 2021.
In December 2018, the Company recorded a settlement resulting from lump sum payments made in 2018 to certain terminated non-union vested participants in the Company's U.S. DB Plan related to voluntary cash settlement options available to these participants. The impact of the settlement was determined using assumptions consistent with those employed at December 31, 2017. The settlement reduced the Company's U.S. DB Plan's unrealized actuarial losses by $4 million, which was included in OCI, and resulted in a settlement charge of $4 million which was recorded in net benefit costs in 2018. Effective December 1, 2018, the plan was amended to include this unlimited lump sum payment option for certain union employees who were not previously eligible.

TC Energy Consolidated Financial Statements 2020 | 169


The Company's funded status at December 31 was comprised of the following:
at December 31Pension
Benefit Plans
Other Post-Retirement
Benefit Plans
(millions of Canadian $)2020201920202019
Change in Benefit Obligation1
    
Benefit obligation – beginning of year4,058 3,653 427 430 
Service cost155 126 6 5 
Interest cost133 142 14 17 
Employee contributions6 5   
Benefits paid(249)(213)(21)(24)
Actuarial loss242 394 36 13 
Foreign exchange rate changes(19)(49)(5)(14)
Benefit obligation – end of year4,326 4,058 457 427 
Change in Plan Assets    
Plan assets at fair value – beginning of year3,693 3,321 406 376 
Actual return on plan assets485 505 56 52 
Employer contributions2
124 122 9 22 
Employee contributions6 5   
Benefits paid(249)(212)(21)(24)
Foreign exchange rate changes(21)(48)(9)(20)
Plan assets at fair value – end of year4,038 3,693 441 406 
Funded Status – Plan Deficit(288)(365)(16)(21)
1The benefit obligation for the Company’s pension benefit plans represents the projected benefit obligation. The benefit obligation for the Company’s other post-retirement benefit plans represents the accumulated post-retirement benefit obligation.
2Excludes a $13 million letter of credit provided to the Canadian DB Plan for funding purposes (2019 – $12 million).
The actuarial loss realized on the defined benefit plan obligation is primarily attributable to a decrease in the weighted average discount rate from 3.20 per cent in 2019 to 2.70 per cent in 2020.
The actuarial loss realized on the other post-retirement benefit plan obligation is primarily due to the decrease in the weighted average discount rate from 3.35 per cent in 2019 to 2.75 per cent in 2020.
The amounts recognized on the Company's Consolidated balance sheet for its DB Plans and other post-retirement benefits plans were as follows:
at December 31Pension
Benefit Plans
Other Post-Retirement
Benefit Plans
(millions of Canadian $)2020201920202019
Other long-term assets (Note 13)29  178 162 
Accounts payable and other  (8)(8)
Other long-term liabilities (Note 16)(317)(365)(186)(175)
 (288)(365)(16)(21)
170 | TC Energy Consolidated Financial Statements 2020


Included in the above benefit obligation and fair value of plan assets were the following amounts for plans that were not fully funded:
at December 31Pension
Benefit Plans
Other Post-Retirement
Benefit Plans
(millions of Canadian $)2020201920202019
Projected benefit obligation1
(3,292)(4,058)(194)(182)
Plan assets at fair value2,975 3,693   
Funded Status – Plan Deficit(317)(365)(194)(182)
1The projected benefit obligation for the pension benefit plans differs from the accumulated benefit obligation in that it includes an assumption with respect to future compensation levels.
The funded status based on the accumulated benefit obligation for all DB Plans was as follows:
at December 3120202019
(millions of Canadian $)
Accumulated benefit obligation(3,957)(3,719)
Plan assets at fair value4,038 3,693 
Funded Status – Plan Surplus /(Deficit)81 (26)
Included in the above accumulated benefit obligation and fair value of plan assets are the following amounts in respect of DB Plans that were not fully funded:
at December 31
(millions of Canadian $)
20201
2019
Accumulated benefit obligation (2,397)
Plan assets at fair value 2,351 
Funded Status – Plan Deficit (46)
1The Company's DB Plans with respect to the accumulated benefit obligation and fair value of plan assets were fully funded at December 31, 2020.
The Company pension plans' weighted average asset allocations and target allocations by asset category were as follows:
 Percentage of
Plan Assets
Target Allocations
at December 31202020192020
Debt securities33 %32 %
25% to 45%
Equity securities57 %58 %
35% to 65%
Alternatives 10 %10 %
10% to 20%
 100 %100 % 
Debt and equity securities include the Company's debt and common shares as follows:
at December 31 Percentage of
Plan Assets
(millions of Canadian $)2020201920202019
Debt securities13 9 0.3 %0.2 %
Equity securities5 15 0.1 %0.4 %
Pension plan assets are managed on a going concern basis, subject to legislative restrictions, and are diversified across asset classes to maximize returns at an acceptable level of risk. Asset mix strategies consider plan demographics and may include traditional equity and debt securities as well as alternative assets such as infrastructure, private equity, real estate and derivatives to diversify risk. Derivatives are not used for speculative purposes and the use of leveraged derivatives is prohibited.
TC Energy Consolidated Financial Statements 2020 | 171


All investments are measured at fair value using market prices. Where the fair value cannot be readily determined by reference to generally available price quotations, the fair value is determined by considering the discounted cash flows on a risk-adjusted basis and by comparison to similar assets which are publicly traded. In Level I, the fair value of assets is determined by reference to quoted prices in active markets for identical assets that the Company has the ability to access at the measurement date. In Level II, the fair value of assets is determined using valuation techniques such as option pricing models and extrapolation using significant inputs which are observable directly or indirectly. In Level III, the fair value of assets is determined using a market approach based on inputs that are unobservable and significant to the overall fair value measurement.
The following table presents plan assets for DB Plans and other post-retirement benefits measured at fair value, which have been categorized into the three categories based on a fair value hierarchy. For additional information on the fair value hierarchy, refer to Note 25, Risk management and financial instruments.
at December 31Quoted Prices in
Active Markets
(Level I)
Significant Other Observable Inputs
(Level II)
Significant Unobservable Inputs
(Level III)
TotalPercentage of
Total Portfolio
(millions of Canadian $)2020201920202019202020192020201920202019
Asset Category
Cash and Cash Equivalents87 58     87 58 2 1 
Equity Securities:
Canadian276 402 177 189   453 591 10 14 
U.S.594 523 211 156   805 679 18 17 
International114 46 380 320   494 366 11 9 
Global116 136 368 297   484 433 11 11 
Emerging35 8 125 126   160 134 4 3 
Fixed Income Securities:
Canadian Bonds:
Federal  207 198   207 198 5 5 
Provincial  283 246   283 246 6 6 
Municipal  13 12   13 12   
Corporate  151 125   151 125 3 3 
U.S. Bonds:
Federal444 421 14 7   458 428 10 11 
Municipal  2 1   2 1   
Corporate72 67 143 120   215 187 5 5 
International:
Government8 7 6 4   14 11   
Corporate  48 52   48 52 1 1 
Mortgage backed47 46 4 7   51 53 1 1 
Other Investments:
Real estate    213 196 213 196 5 5 
Infrastructure    203 181 203 181 5 4 
Private equity funds    1 2 1 2   
Derivatives  (8)   (8)   
Funds held on deposit145 146     145 146 3 4 
 1,938 1,860 2,124 1,860 417 379 4,479 4,099 100 100 
172 | TC Energy Consolidated Financial Statements 2020


The following table presents the net change in the Level III fair value category:
(millions of Canadian $, pre-tax)
Balance at December 31, 2018362 
Purchases and sales35 
Realized and unrealized losses(18)
Balance at December 31, 2019379 
Purchases and sales42 
Realized and unrealized losses(4)
Balance at December 31, 2020417 
The Company's expected funding contributions in 2021 are approximately $128 million for the DB Plans, approximately $6 million for the other post-retirement benefit plans and approximately $59 million for the savings plans and DC Plans. The Company expects to provide an additional estimated $13 million letter of credit to the Canadian DB Plan for the funding of solvency requirements.
The following are estimated future benefit payments, which reflect expected future service:
(millions of Canadian $)Pension BenefitsOther Post-Retirement Benefits
2021208 25 
2022210 25 
2023213 25 
2024215 25 
2025217 25 
2026 to 20301,115 120 
The rate used to discount pension and other post-retirement benefit plan obligations was developed based on a yield curve of primarily corporate AA bond yields at December 31, 2020. This yield curve is used to develop spot rates that vary based on the duration of the obligations. The estimated future cash flows for the pension and other post-retirement benefit obligations were matched to the corresponding rates on the spot rate curve to derive a weighted average discount rate.
The significant weighted average actuarial assumptions adopted in measuring the Company's benefit obligations were as follows:
Pension
Benefit Plans
Other Post-Retirement
Benefit Plans
at December 312020201920202019
Discount rate2.70 %3.20 %2.75 %3.35 %
Rate of compensation increase2.60 %3.00 %  
The significant weighted average actuarial assumptions adopted in measuring the Company's net benefit plan costs were as follows:
 Pension
Benefit Plans
Other Post-Retirement
Benefit Plans
year ended December 31202020192018202020192018
Discount rate3.20 %3.90 %3.60 %3.35 %4.10 %3.70 %
Expected long-term rate of return on plan assets6.40 %6.60 %6.70 %3.50 %4.30 %4.00 %
Rate of compensation increase3.00 %3.00 %3.00 %   
TC Energy Consolidated Financial Statements 2020 | 173


The overall expected long-term rate of return on plan assets is based on historical and projected rates of return for the portfolio in aggregate and for each asset class in the portfolio. Assumed projected rates of return are selected after analyzing historical experience and estimating future levels and volatility of returns. Asset class benchmark returns, asset mix and anticipated benefit payments from plan assets are also considered in determining the overall expected rate of return. The discount rate is based on market interest rates of high-quality bonds that match the timing and benefits expected to be paid under each plan.
A 6.30 per cent weighted-average annual rate of increase in the per capita cost of covered health care benefits was assumed for 2021 measurement purposes. The rate was assumed to decrease gradually to 4.80 per cent by 2028 and remain at this level thereafter.
The net benefit cost recognized for the Company’s pension benefit plans and other post-retirement benefit plans was as follows:
at December 31Pension
Benefit Plans
Other Post-Retirement
Benefit Plans
(millions of Canadian $)202020192018202020192018
Service cost1
155 126 121 6 5 4 
Other components of net benefit cost1
Interest cost133 142 134 14 17 14 
Expected return on plan assets(230)(222)(221)(14)(15)(16)
Amortization of actuarial loss21 12 15 2 2 1 
Amortization of regulatory asset25 14 18 2 2  
Settlement charge – AOCI  4    
(51)(54)(50)4 6 (1)
Net Benefit Cost Recognized104 72 71 10 11 3 
1    Service cost and other components of net benefit cost are included in Plant operating costs and other in the Consolidated statement of income.
Pre-tax amounts recognized in AOCI were as follows:
202020192018
at December 31Pension
Benefits
Other Post-
Retirement
Benefits
Pension
Benefits
Other Post-
Retirement
Benefits
Pension
Benefits
Other Post-
Retirement
Benefits
(millions of Canadian $)
Net loss358 22 398 20 364 53 
Pre-tax amounts recognized in OCI were as follows:
202020192018
at December 31Pension
Benefits
Other Post-
Retirement
Benefits
Pension
Benefits
Other Post-
Retirement
Benefits
Pension
Benefits
Other Post-
Retirement
Benefits
(millions of Canadian $)
Amortization of net loss from AOCI to net income(21)(2)(12)(2)(15)(1)
Settlement     (4) 
Funded status adjustment(18)3 52 (37)110 43 
 (39)1 40 (39)91 42 
174 | TC Energy Consolidated Financial Statements 2020


25.  RISK MANAGEMENT AND FINANCIAL INSTRUMENTS
Risk Management Overview
TC Energy has exposure to market risk and counterparty credit risk, and has strategies, policies and limits in place to manage the impact of these risks on earnings, cash flows and, ultimately, shareholder value.
Risk management strategies, policies and limits are designed to ensure TC Energy's risks and related exposures are in line with the Company's business objectives and risk tolerance. Market risk and counterparty credit risk are managed within limits that are established by the Company's Board of Directors, implemented by senior management and monitored by the Company's risk management and internal audit groups. The Board of Directors' Audit Committee oversees how management monitors compliance with market risk and counterparty credit risk management policies and procedures and oversees management's review of the adequacy of the risk management framework.
Market Risk
The Company constructs and invests in energy infrastructure projects, purchases and sells commodities, issues short-term and long-term debt, including amounts in foreign currencies, and invests in foreign operations. Certain of these activities expose the Company to market risk from changes in commodity prices, foreign exchange rates and interest rates, which may affect the Company's earnings and the value of its financial assets and liabilities. The Company assesses contracts used to manage market risk to determine whether all, or a portion, meets the definition of a derivative.
Derivative contracts the Company uses to assist in managing exposure to market risk may include the following:
Forwards and futures contracts – agreements to purchase or sell a specific financial instrument or commodity at a specified price and date in the future
Swaps – agreements between two parties to exchange streams of payments over time according to specified terms
Options – agreements that convey the right, but not the obligation of the purchaser to buy or sell a specific amount of a financial instrument or commodity at a fixed price, either at a fixed date or at any time within a specified period.
Commodity price risk
The following strategies may be used to manage exposure to commodity price risk in the Company's non-regulated businesses:
in the Company's natural gas marketing business, TC Energy enters into natural gas transportation and storage contracts as well as natural gas purchase and sale agreements. The Company manages exposure on these contracts using financial instruments and hedging activities to offset market price volatility
in the Company's liquids marketing business, TC Energy enters into pipeline and storage terminal capacity contracts as well as crude oil purchase and sale agreements. The Company fixes a portion of the exposure on these contracts by entering into financial instruments to manage variable price fluctuations that arise from physical liquids transactions
in the Company's power generation business, TC Energy manages the exposure to fluctuating commodity prices through long-term contracts and hedging activities including selling and purchasing power and natural gas in forward markets
in the Company's non-regulated natural gas storage business, TC Energy's exposure to seasonal natural gas price spreads is managed with a portfolio of third-party storage capacity contracts and through offsetting purchases and sales of natural gas in forward markets to lock in future positive margins.
In May 2019, TC Energy sold its remaining U.S. Power marketing contracts completing the divestiture of its U.S. Northeast power business which began in 2017, greatly reducing its exposure to electricity price risk.
Interest rate risk
TC Energy utilizes short-term and long-term debt to finance its operations which exposes the Company to interest rate risk. TC Energy typically pays fixed rates of interest on its long-term debt and floating rates on its commercial paper programs and amounts drawn on its credit facilities. A small portion of TC Energy's long-term debt bears interest at floating rates. In addition, the Company is exposed to interest rate risk on financial instruments and contractual obligations containing variable interest rate components. The Company actively manages its interest rate risk using interest rate derivatives.
Many of TC Energy's financial instruments and contractual obligations with variable rate components reference LIBOR, of which certain rate settings may cease to be published at the end of 2021 with full cessation expected by mid-2023. The Company continues to monitor developments and is preparing to address any necessary system and contractual changes while assessing the adoption of the standard market proposed reference rates.
TC Energy Consolidated Financial Statements 2020 | 175


Foreign exchange risk
TC Energy generates revenues and incurs expenses and capital expenditures that are denominated in currencies other than Canadian dollars. As a result, the Company's earnings and cash flows are exposed to currency fluctuations.
A significant portion of TC Energy's businesses generate earnings in U.S. dollars, but since the Company reports its financial results in Canadian dollars, changes in the value of the U.S. dollar against the Canadian dollar can affect its net income. As the Company's U.S. dollar-denominated operations continue to grow, this exposure increases. A portion of this risk is offset by interest expense on U.S. dollar-denominated debt. The balance of the exposure is actively managed on a rolling two-year basis using foreign exchange derivatives, however, the natural exposure beyond that period remains.
A small portion of the Company's Mexico Natural Gas Pipelines monetary assets and liabilities are peso-denominated, while the functional currency for our Mexico operations is U.S. dollars. These peso-denominated balances are revalued to U.S. dollars and, as a result, changes in the value of the Mexican peso against the U.S. dollar can affect the Company's net income. This exposure is managed using foreign exchange derivatives.
Net investment hedges
The Company hedges a portion of its net investment in foreign operations (on an after-tax basis) with U.S. dollar-denominated debt, cross-currency swaps and foreign exchange options.
The fair values and notional amounts for the derivatives designated as a net investment hedge were as follows:
20202019
at December 31
Fair
Value
1,2
Notional Amount
Fair
Value
1,2
Notional Amount
(millions of Canadian $, unless otherwise noted)
U.S. dollar foreign exchange options (maturing 2021)45 US 2,20010 US 3,000
U.S. dollar cross-currency interest rate swaps (maturing 2022 to 2025)3
23 US 4003 US 100
 68 US 2,60013 US 3,100
1Fair value equals carrying value.
2No amounts have been excluded from the assessment of hedge effectiveness.
3In 2020, Net income includes net realized gains of $1 million (2019 – nil) related to the interest component of cross-currency swap settlements which are reported within Interest expense.
The notional amounts and fair value of U.S. dollar-denominated debt designated as a net investment hedge were as follows:
at December 3120202019
(millions of Canadian $, unless otherwise noted)
Notional amount
27,700 (US 21,800)
29,300 (US 22,600)
Fair value
33,800 (US 26,500)
33,400 (US 25,700)
Counterparty Credit Risk
TC Energy's exposure to counterparty credit risk consists of its cash and cash equivalents, accounts receivable, available-for-sale assets, the fair value of derivative assets and loans receivable.
The sustained impact of the COVID-19 pandemic and related global energy demand and supply disruption continues to contribute to market uncertainty impacting a number of TC Energy's customers. While the majority of the Company's credit exposure is to large creditworthy entities, TC Energy has increased its monitoring of and communication with those counterparties experiencing greater financial pressures due to recent market events.





176 | TC Energy Consolidated Financial Statements 2020


At times, the Company's counterparties may endure financial challenges resulting from commodity price and market volatility, economic instability and political or regulatory changes. In addition to actively monitoring these situations, there are a number of factors that reduce TC Energy's counterparty credit risk exposure in the event of default, including:
contractual rights and remedies together with the utilization of contractually-based financial assurances
current regulatory frameworks governing certain TC Energy operations
competitive position of the Company's assets and the demand for the Company's services, and
potential recovery of unpaid amounts through bankruptcy and similar proceedings.
The Company reviews financial assets carried at amortized cost for impairment using the lifetime expected loss of the financial asset at initial recognition and throughout the life of the financial asset. TC Energy uses historical credit loss and recovery data, adjusted for management's judgment regarding current economic and credit conditions, along with supportable forecasts to determine any impairment, which is recognized in Plant operating costs and other. At December 31, 2020 and 2019, there were no significant credit losses, no significant credit risk concentrations and no significant amounts past due or impaired.
TC Energy has significant credit and performance exposure to financial institutions because they hold cash deposits and provide committed credit lines and letters of credit that help manage the Company's exposure to counterparties and provide liquidity in commodity, foreign exchange and interest rate derivative markets.
Fair Value of Non-Derivative Financial Instruments
Available-for-sale assets are recorded at fair value which is calculated using quoted market prices where available. Certain non-derivative financial instruments included in Cash and cash equivalents, Accounts receivable, Other current assets, Loan receivable from affiliate, Restricted investments, Other long-term assets, Notes payable, Accounts payable and other, Redeemable non-controlling interest, Dividends payable, Accrued interest and Other long-term liabilities have carrying amounts that approximate their fair value due to the nature of the item or the short time to maturity. Each of these instruments are classified in Level II of the fair value hierarchy, except for the Company's LMCI equity securities which are classified in Level I.
Credit risk has been taken into consideration when calculating the fair value of non-derivative financial instruments.
Balance Sheet Presentation of Non-Derivative Financial Instruments
The following table details the fair value of non-derivative financial instruments, excluding those where carrying amounts approximate fair value, and would be classified in Level II of the fair value hierarchy:
 20202019
at December 31
Carrying
Amount
Fair
Value
Carrying
Amount
Fair
Value
(millions of Canadian $)
Long-term debt, including current portion1,2 (Note 18)
(36,885)(46,054)(36,985)(43,187)
Junior subordinated notes (Note 19)(8,498)(8,908)(8,614)(8,777)
 (45,383)(54,962)(45,599)(51,964)
1Long-term debt is recorded at amortized cost, except for US$200 million at December 31, 2019 that was attributed to hedged risk and recorded at fair value.
2Net income in 2020 included unrealized losses of nil (2019 – losses of $3 million) for fair value adjustments attributable to the hedged interest rate risk associated with interest rate swap fair value hedging relationships on US$200 million of long-term debt that matured in March 2020 (2019 – US$200 million). There were no other unrealized gains or losses from fair value adjustments to the non-derivative financial instruments.
TC Energy Consolidated Financial Statements 2020 | 177


Available-for-Sale Assets Summary
The following tables summarize additional information about the Company's restricted investments that were classified as available-for-sale assets:
 20202019
at December 31LMCI Restricted Investments
Other Restricted Investments1
LMCI Restricted Investments
Other Restricted Investments1
(millions of Canadian $)
Fair value of fixed income securities2,3
Maturing within 1 year 17  6 
Maturing within 1-5 years 66 26 100 
Maturing within 5-10 years985  801  
Maturing after 10 years85  61  
Fair value of equity securities2,4
736  556  
1,806 83 1,444 106 
1Other restricted investments have been set aside to fund insurance claim losses to be paid by the Company's wholly-owned captive insurance subsidiary.
2Available-for-sale assets are recorded at fair value and included in Other current assets and Restricted investments on the Company's Consolidated balance sheet.
3Classified in Level II of the fair value hierarchy.
4Classified in Level I of the fair value hierarchy.
202020192018
year ended December 31
(millions of Canadian $)
LMCI restricted investments1
Other restricted investments2
LMCI restricted investments1
Other restricted investments2
LMCI restricted investments1
Other restricted investments2
Net unrealized gains130 1 32 3 11  
Net realized gains /(losses)3
20 1 60  (4) 
1Gains and losses arising from changes in the fair value of LMCI restricted investments impact the subsequent amounts to be collected through tolls to cover future pipeline abandonment costs. As a result, the Company records these gains and losses as regulatory assets or liabilities.
2Gains and losses on other restricted investments are included in Interest income and other in the Company's Consolidated statement of income.
3Realized gains and losses on the sale of LMCI restricted investments are determined using the average cost basis.
Fair Value of Derivative Instruments
The fair value of foreign exchange and interest rate derivatives has been calculated using the income approach which uses year-end market rates and applies a discounted cash flow valuation model. The fair value of commodity derivatives has been calculated using quoted market prices where available. In the absence of quoted market prices, third-party broker quotes or other valuation techniques have been used. The fair value of options has been calculated using the Black-Scholes pricing model. Credit risk has been taken into consideration when calculating the fair value of derivative instruments. Unrealized gains and losses on derivative instruments are not necessarily representative of the amounts that will be realized on settlement.
In some cases, even though the derivatives are considered to be effective economic hedges, they do not meet the specific criteria for hedge accounting treatment or are not designated as a hedge and are accounted for at fair value with changes in fair value recorded in net income in the period of change. This may expose the Company to increased variability in reported earnings because the fair value of the derivative instruments can fluctuate significantly from period to period.
The recognition of gains and losses on derivatives for Canadian natural gas regulated pipeline exposures is determined through the regulatory process. Gains and losses arising from changes in the fair value of derivatives accounted for as part of RRA, including those that qualify for hedge accounting treatment, are expected to be recovered or refunded through the tolls charged by the Company. As a result, these gains and losses are deferred as regulatory assets or regulatory liabilities and are refunded to or collected from the ratepayers in subsequent years when the derivative settles.
178 | TC Energy Consolidated Financial Statements 2020


Balance Sheet Presentation of Derivative Instruments
The balance sheet classification of the fair value of derivative instruments as at December 31, 2020 was as follows:
at December 31, 2020Cash Flow HedgesNet
Investment Hedges
Held for
Trading
Total Fair
 Value of Derivative Instruments1
(millions of Canadian $)
Other current assets (Note 6)  
Commodities2
  13 13 
Foreign exchange 47 175 222 
 47 188 235 
Other long-term assets (Note 13)
Foreign exchange 22 19 41 
 22 19 41 
Total Derivative Assets 69 207 276 
Accounts payable and other (Note 15)
Commodities2
(8) (32)(40)
Foreign exchange (1)(10)(11)
Interest rate3
(21)  (21)
(29)(1)(42)(72)
Other long-term liabilities (Note 16)
Commodities2
(6) (4)(10)
Interest rate3
(49)  (49)
(55) (4)(59)
Total Derivative Liabilities(84)(1)(46)(131)
Total Derivatives(84)68 161 145 
1Fair value equals carrying value.
2Includes purchases and sales of power, natural gas and liquids.
3For the year ended December 31, 2020, a $130 million payment to settle a loss on financial instruments was included in Net cash (used in)/ provided by financing activities in the Consolidated statement of cash flows.

TC Energy Consolidated Financial Statements 2020 | 179


The balance sheet classification of the fair value of derivative instruments as at December 31, 2019 was as follows:
at December 31, 2019Cash Flow HedgesFair Value HedgesNet Investment HedgesHeld for Trading
Total Fair Value of Derivative Instruments1
(millions of Canadian $)
Other current assets (Note 6)   
Commodities2
   118 118 
Foreign exchange  10 61 71 
Interest rate 1   1 
 1 10 179 190 
Other long-term assets (Note 13)
Foreign exchange  5  5 
Interest rate2    2 
2  5  7 
Total Derivative Assets2 1 15 179 197 
Accounts payable and other (Note 15)
Commodities2
(4)  (104)(108)
Foreign exchange  (1)(3)(4)
Interest rate(3)   (3)
(7) (1)(107)(115)
Other long-term liabilities (Note 16)
Commodities2
(6)  (11)(17)
Foreign exchange  (1) (1)
Interest rate(63)   (63)
(69) (1)(11)(81)
Total Derivative Liabilities(76) (2)(118)(196)
Total Derivatives(74)1 13 61 1 
1Fair value equals carrying value.
2Includes purchases and sales of power, natural gas and liquids.
The majority of derivative instruments held for trading have been entered into for risk management purposes and all are subject to the Company's risk management strategies, policies and limits. These include derivatives that have not been designated as hedges or do not qualify for hedge accounting treatment but have been entered into as economic hedges to manage the Company's exposures to market risk.
Derivatives in fair value hedging relationships
The following table details amounts recorded on the Consolidated balance sheet in relation to cumulative adjustments for fair value hedges included in the carrying amount of the hedged liabilities:
at December 31Carrying amount
Fair value hedging adjustments1
(millions of Canadian $)2020201920202019
Long-term debt (260) (1)
1At December 31, 2020 and 2019, adjustments for discontinued hedging relationships included in these balances were nil.
180 | TC Energy Consolidated Financial Statements 2020


Notional and Maturity Summary
The maturity and notional amount or quantity outstanding related to the Company's derivative instruments excluding hedges of the net investment in foreign operations was as follows:
at December 31, 2020PowerNatural GasLiquidsForeign ExchangeInterest Rate
Purchases1
185 13 26   
Sales1
1,786 14 30   
Millions of U.S. dollars   4,432 1,100 
Millions of Mexican pesos   1,700  
Maturity dates2021-20252021-202720212021-20222022-2026
1Volumes for power, natural gas and liquids derivatives are in GWh, Bcf and MMBbls, respectively.
at December 31, 2019PowerNatural GasLiquidsForeign ExchangeInterest Rate
Purchases1
492 14 39   
Sales1
2,089 22 53   
Millions of U.S. dollars   3,153 1,600 
Millions of Mexican pesos   800 
Maturity dates2020-20242020-2027202020202020-2030
1Volumes for power, natural gas and liquids derivatives are in GWh, Bcf and MMBbls, respectively.
Unrealized and Realized (Losses)/ Gains on Derivative Instruments
The following summary does not include hedges of the net investment in foreign operations:
year ended December 31202020192018
(millions of Canadian $)
Derivative instruments held for trading1
Amount of unrealized (losses)/ gains in the year
Commodities(23)(111)28 
Foreign exchange126 245 (248)
Amount of realized gains /(losses) in the year
Commodities183 378 351 
Foreign exchange(33)(70)(24)
Derivative instruments in hedging relationships2
Amount of realized gains /(losses) in the year
Commodities6 (6)(1)
Interest rate(16)2 (1)
1Realized and unrealized gains and losses on held-for-trading derivative instruments used to purchase and sell commodities are included on a net basis in Revenues. Realized and unrealized gains and losses on foreign exchange held-for-trading derivative instruments are included on a net basis in Interest income and other.
2In 2020, 2019 and 2018, there were no gains or losses included in Net Income relating to discontinued cash flow hedges where it was probable that the anticipated transaction would not occur.
TC Energy Consolidated Financial Statements 2020 | 181


Derivatives in cash flow hedging relationships
The components of OCI (Note 23) related to the change in fair value of derivatives in cash flow hedging relationships before tax and including the portion attributable to non-controlling interests were as follows:
year ended December 31202020192018
(millions of Canadian $, pre-tax)
Change in fair value of derivative instruments recognized in OCI1
Commodities(5)(15)(1)
Interest rate(766)(63)(13)
(771)(78)(14)
1No amounts have been excluded from the assessment of hedge effectiveness. Amounts in parentheses indicate losses recorded to OCI and AOCI.
Effect of fair value and cash flow hedging relationships
The following table details amounts presented in the Consolidated statement of income in which the effects of fair value or cash flow hedging relationships were recorded:
year ended December 31202020192018
(millions of Canadian $)
Fair Value Hedges
Interest rate contracts1
Hedged items (3)(19)(71)
Derivatives designated as hedging instruments1 1 (4)
Cash Flow Hedges
Reclassification of losses on derivative instruments from AOCI to net income2,3
Interest rate contracts1
(648)(12)(22)
Commodity contracts4
(1)(7)(5)
1Presented within Interest expense in the Consolidated statement of income, except for a loss of $613 million related to a contractually required derivative instrument used to hedge the interest rate risk associated with project-level financing for the Coastal GasLink construction. This derivative instrument was derecognized as part of the sale of a 65 per cent equity interest in Coastal GasLink LP. The loss is included in Net (loss)/ gain on assets sold/held for sale. Refer to Note 27, Acquisitions and dispositions, for additional information.
2Refer to Note 23, Other comprehensive (loss)/ income and accumulated other comprehensive loss, for the components of OCI related to derivatives in cash flow hedging relationships including the portion attributable to non-controlling interests.
3There are no amounts recognized in earnings that were excluded from effectiveness testing.
4Presented within Revenues (Power and Storage) in the Consolidated statement of income.
182 | TC Energy Consolidated Financial Statements 2020


Offsetting of derivative instruments
The Company enters into derivative contracts with the right to offset in the normal course of business as well as in the event of default. TC Energy has no master netting agreements, however, similar contracts are entered into containing rights to offset. The Company has elected to present the fair value of derivative instruments with the right to offset on a gross basis on the Consolidated balance sheet. The following tables show the impact on the presentation of the fair value of derivative instrument assets and liabilities had the Company elected to present these contracts on a net basis:
at December 31, 2020Gross Derivative Instruments
Amounts Available for Offset1
Net Amounts
(millions of Canadian $)
Derivative instrument assets
Commodities13 (7)6 
Foreign exchange263 (11)252 
276 (18)258 
Derivative instrument liabilities
Commodities(50)7 (43)
Foreign exchange(11)11  
Interest rate(70) (70)
(131)18 (113)
1Amounts available for offset do not include cash collateral pledged or received.
at December 31, 2019Gross Derivative Instruments
Amounts Available for Offset1
Net Amounts
(millions of Canadian $)
Derivative instrument assets
Commodities118 (76)42 
Foreign exchange76 (5)71 
Interest rate3 (1)2 
197 (82)115 
Derivative instrument liabilities
Commodities(125)76 (49)
Foreign exchange(5)5  
Interest rate(66)1 (65)
(196)82 (114)
1Amounts available for offset do not include cash collateral pledged or received.
With respect to the derivative instruments presented above, the Company provided cash collateral of $54 million and letters of credit of $15 million at December 31, 2020 (2019 – $58 million and $25 million, respectively) to its counterparties. At December 31, 2020, the Company held no cash collateral and no letters of credit (2019 – nil and nil, respectively) from counterparties on asset exposures.
Credit-risk-related contingent features of derivative instruments
Derivative contracts entered into to manage market risk often contain financial assurance provisions that allow parties to the contracts to manage credit risk. These provisions may require collateral to be provided if a credit-risk-related contingent event occurs, such as a downgrade in the Company's credit rating to non-investment grade. The Company may also need to provide collateral if the fair value of its derivative financial instruments exceeds pre-defined exposure limits.
TC Energy Consolidated Financial Statements 2020 | 183


Based on contracts in place and market prices at December 31, 2020, the aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position was $4 million (2019 – $4 million), for which the Company has provided no collateral in the normal course of business. If the credit-risk-related contingent features in these agreements were triggered on December 31, 2020, the Company would have been required to provide collateral equal to the fair value of the related derivative instruments discussed above. Collateral may also need to be provided should the fair value of derivative instruments exceed pre-defined contractual exposure limit thresholds.
The Company has sufficient liquidity in the form of cash and undrawn committed revolving credit facilities to meet these contingent obligations should they arise.
Fair Value Hierarchy
The Company's financial assets and liabilities recorded at fair value have been categorized into three categories based on a fair value hierarchy.
LevelsHow fair value has been determined
Level IQuoted prices in active markets for identical assets and liabilities that the Company has the ability to access at the measurement date. An active market is a market in which frequency and volume of transactions provides pricing information on an ongoing basis.
Level II
This category includes interest rate and foreign exchange derivative assets and liabilities where fair value is determined using the income approach and commodity derivatives where fair value is determined using the market approach.
Inputs include published exchange rates, interest rates, interest rate swap curves, yield curves and broker quotes from external data service providers.
Level III
This category mainly includes long-dated commodity transactions in certain markets where liquidity is low and the Company uses the most observable inputs available or, if not available, long-term broker quotes to estimate the fair value for these transactions.
There is uncertainty caused by using unobservable market data which may not accurately reflect possible future changes in fair value.
The fair value of the Company's derivative assets and liabilities measured on a recurring basis, including both current and non-current portions, were categorized as follows:
at December 31, 2020
Quoted Prices in Active Markets
(Level I)
Significant Other Observable Inputs (Level II)1
Significant Unobservable Inputs
(Level III)
1
Total
(millions of Canadian $)
Derivative instrument assets
Commodities3 10  13 
Foreign exchange 263  263 
Derivative instrument liabilities
Commodities(15)(31)(4)(50)
Foreign exchange (11) (11)
Interest rate (70) (70)
(12)161 (4)145 
1There were no transfers from Level II to Level III for the year ended December 31, 2020.

184 | TC Energy Consolidated Financial Statements 2020


at December 31, 2019
Quoted Prices in Active Markets
(Level I)
Significant Other Observable Inputs (Level II)1
Significant Unobservable Inputs
(Level III)
1
Total
(millions of Canadian $)
Derivative instrument assets
Commodities81 37  118 
Foreign exchange 76  76 
Interest rate 3  3 
Derivative instrument liabilities
Commodities(77)(41)(7)(125)
Foreign exchange (5) (5)
Interest rate (66) (66)
4 4 (7)1 
1There were no transfers from Level II to Level III for the year ended December 31, 2019.
The following table presents the net change in fair value of derivative assets and liabilities classified in Level III of the fair value hierarchy:
(millions of Canadian $, pre-tax)20202019
Balance at beginning of year(7)(4)
Transfers out of Level III 4 
Total gains /(losses) included in Net income3 (3)
Total losses included in OCI (4)
Balance at end of year1
(4)(7)
1Revenues include unrealized gains of $3 million attributed to derivatives in the Level III category that were still held at December 31, 2020 (2019 – unrealized losses of $3 million).
26.  CHANGES IN OPERATING WORKING CAPITAL
year ended December 31202020192018
(millions of Canadian $)
Decrease /(increase) in Accounts receivable129 31 (69)
Increase in Inventories(55)(42)(49)
(Increase)/ decrease in Other current assets(221)(15)45 
(Decrease)/ increase in Accounts payable and other(162)352 (70)
(Decrease)/ increase in Accrued interest(18)(33)41 
(Increase)/ Decrease in Operating Working Capital(327)293 (102)

TC Energy Consolidated Financial Statements 2020 | 185


27.  ACQUISITIONS AND DISPOSITIONS
Canadian Natural Gas Pipelines
Coastal GasLink LP
On May 22, 2020, TC Energy completed the sale of a 65 per cent equity interest in Coastal GasLink LP to third parties for net proceeds of $656 million before post-closing adjustments resulting in a pre-tax gain of $364 million ($402 million after tax). The pre-tax gain includes $231 million related to the required remeasurement of the Company’s retained 35 per cent equity interest to fair value which was based on the proceeds realized for the 65 per cent equity interest, and also incorporates the reclassification from AOCI to income of the fair value of a derivative instrument used to hedge the interest rate risk associated with project-level financing for the Coastal GasLink construction. The $402 million after-tax gain also reflects the utilization of previously unrecognized tax loss benefits. The pre-tax gain is included in Net (loss)/ gain on assets sold/held for sale in the Consolidated statement of income. As part of this transaction, TC Energy has been contracted by Coastal GasLink LP to construct and operate the pipeline. TC Energy uses the equity method to account for its remaining 35 per cent equity interest in the Company's consolidated financial statements.
In conjunction with the equity sale, Coastal GasLink LP entered into secured long-term project financing credit facilities with a current total capacity of $6.8 billion to fund the majority of the construction costs of Coastal GasLink. Immediately preceding the equity sale, Coastal GasLink LP drew down $1.6 billion on the facilities, of which approximately $1.5 billion was paid to TC Energy.
Along with this sale, TC Energy has provided an opportunity to the 20 First Nations that have executed agreements with Coastal GasLink LP to invest in the project through an option to acquire a 10 per cent equity interest.
U.S. Natural Gas Pipelines
Columbia Midstream Assets
In August 2019, TC Energy completed the sale of certain Columbia Midstream assets to a third party for approximately US$1.3 billion before post-closing adjustments.
The Company recorded a pre-tax gain on sale of $21 million ($152 million after-tax loss) including the impact of $4 million of foreign currency translation gains that were reclassified from AOCI to net income and the release of $595 million of Columbia goodwill allocated to these assets that is not deductible for income tax purposes. The pre-tax gain is included in Net (loss)/ gain on assets sold/held for sale in the Consolidated statement of income. This sale did not include any interest in Columbia Energy Ventures Company, the Company's minerals business in the Appalachian basin.
In 2020, upon finalizing its 2019 annual tax returns for its U.S. operations, the Company recorded an $18 million income tax recovery related to the sale.
Columbia Pipeline Group, Inc.
At the time of the July 2016 acquisition of Columbia, certain Columbia shareholders dissented from the transaction and did not tender their shares. In October 2019, TC Energy made a payment to the dissenting Columbia shareholders in the amount of $373 million (US$284 million), representing the appraised value of their shares pursuant to a court decision, which affirmed the original Columbia share purchase price of US$25.50 per share plus accrued interest.
Liquids Pipelines
Northern Courier
In July 2019, TC Energy completed the sale of an 85 per cent equity interest in Northern Courier pipeline to a third party for gross proceeds of $144 million before post-closing adjustments resulting in a pre-tax gain of $69 million after recording the Company’s remaining 15 per cent interest at fair value. The pre-tax gain is included in Net (loss)/ gain on assets sold/held for sale in the Consolidated statement of income. On an after-tax basis, the gain of $115 million reflects the utilization of previously unrecognized tax loss benefits. Preceding the equity sale, Northern Courier pipeline issued $1.0 billion of long-term, non-recourse debt with all proceeds paid to TC Energy.
TC Energy remains the operator of the Northern Courier pipeline and uses the equity method to account for its remaining 15 per cent interest in the Company’s consolidated financial statements.
186 | TC Energy Consolidated Financial Statements 2020


Power and Storage
TransCanada Turbines Ltd.
On November 13, 2020, TC Energy acquired the remaining 50 per cent ownership interest in TransCanada Turbines Ltd. (TC Turbines) for cash consideration of US$67 million. TC Turbines provides industrial gas turbine maintenance, parts, repair and overhaul services. The acquisition was accounted for as a business combination and the evaluation of assigned fair value of acquired assets and liabilities did not result in recognition of goodwill. TC Energy previously accounted for its 50 per cent interest in TC Turbines as an equity investment but commenced full consolidation of TC Turbines as of the date of acquisition, which did not have a material impact on Revenues and Net income of the Company. In addition, the pro forma incremental impact on the Company’s Revenues and Net income for each of the periods presented was not material.
Ontario natural gas-fired power plants
On April 29, 2020, the Company completed the sale of the Halton Hills and Napanee power plants as well as its 50 per cent interest in Portlands Energy Centre to a subsidiary of Ontario Power Generation Inc. for net proceeds of approximately $2.8 billion before post-closing adjustments. Pre-tax losses of $414 million ($283 million after tax) were recognized on the sale in 2020 and reflect the finalization of post-closing obligations. The total pre-tax loss of $693 million ($477 million after tax) on this transaction includes losses accrued during 2019 while classified as an asset held for sale and the after-tax loss also reflects utilization of previously unrecognized tax loss benefits. The pre-tax loss is included in Net (loss)/ gain on assets sold/held for sale in the Consolidated statement of income. This loss may be amended in the future upon the settlement of existing insurance claims.
Coolidge Generating Station
In December 2018, the Company entered into an agreement to sell its Coolidge generating station in Arizona to SWG Coolidge Holdings, LLC (SWG). Salt River Project Agriculture Improvement and Power District (SRP), the PPA counterparty, subsequently exercised its contractual right of first refusal (ROFR) on a sale to a third party and the Company terminated the agreement with SWG.
In May 2019, the Company completed the sale to SRP, as per the terms of their ROFR, for proceeds of US$448 million before post-closing adjustments. As a result, the Company recorded a pre-tax gain on sale of $68 million ($54 million after tax) including the impact of $9 million of foreign currency translation gains which were reclassified from AOCI to net income. The pre-tax gain is included in Net (loss)/ gain on assets sold/held for sale in the Consolidated statement of income.
Cartier Wind
In October 2018, the Company completed the sale of its 62 per cent interest in the Cartier Wind power facilities to Innergex Renewable Energy Inc. for proceeds of $630 million before post-closing adjustments. As a result, the Company recorded a gain on sale of $170 million ($143 million after tax) which is included in Net (loss)/ gain on assets sold/held for sale in the Consolidated statement of income.

TC Energy Consolidated Financial Statements 2020 | 187


28.  COMMITMENTS, CONTINGENCIES AND GUARANTEES
Commitments
TC Energy and its affiliates have long-term natural gas transportation and natural gas purchase arrangements as well as other purchase obligations, all of which are transacted at market prices and in the normal course of business. Purchases under these contracts in 2020 were $224 million (2019 – $236 million; 2018 – $207 million).
Capital expenditure commitments include obligations related to the construction of growth projects and are based on the projects proceeding as planned. Changes to these projects, including cancellation, would reduce or possibly eliminate these commitments as a result of cost mitigation efforts. At December 31, 2020, TC Energy had the following capital expenditure commitments:
approximately $0.9 billion for its Canadian natural gas pipelines, primarily related to construction costs associated with NGTL System expansion projects
approximately $0.3 billion for its U.S. natural gas pipelines, primarily related to construction costs associated with ANR and Columbia Gulf pipeline projects
approximately $0.2 billion for its Mexico natural gas pipelines, primarily related to construction of the Tula and Villa de Reyes pipeline projects
approximately $0.9 billion for its Liquids pipelines, primarily related to the construction of Keystone XL
approximately $0.3 billion for its Power and Storage business, primarily related to the Company's proportionate share of commitments for Bruce Power's life extension program.
Acquisition of common units of TC PipeLines, LP
On December 14, 2020, the Company entered into a definitive agreement and plan of merger to acquire all the outstanding common units of TC PipeLines, LP not beneficially owned by TC Energy or its affiliates in exchange for TC Energy common shares. Pursuant to the agreement, TC PipeLines, LP common unitholders will receive 0.70 common shares of TC Energy for each issued and outstanding publicly-held TC PipeLines, LP common unit. The exchange ratio reflects an equivalent of approximately 38 million TC Energy common shares for all publicly-held common units of TC PipeLines, LP. A vote on the plan of merger by the unitholders of the publicly-held common units is scheduled for February 26, 2021. The transaction is expected to close in late first quarter 2021 subject to approval by the holders of a majority of outstanding common units of TC PipeLines, LP and customary regulatory approvals.
If the transaction closes, the expected changes in the Company's ownership interest in TC PipeLines, LP will be accounted for as an equity transaction as the Company will continue to control TC PipeLines, LP and no gain or loss will be recognized in the Consolidated statement of income resulting from the transaction.
Contingencies
TC Energy is subject to laws and regulations governing environmental quality and pollution control. As at December 31, 2020, the Company had accrued approximately $24 million (2019 – $30 million) related to operating facilities, which represents the present value of the estimated future amount it expects to spend to remediate the sites. However, additional liabilities may be incurred as assessments take place and remediation efforts continue.
TC Energy and its subsidiaries are subject to various legal proceedings, arbitrations and actions arising in the normal course of business. The amounts involved in such proceedings are not reasonably estimable as the final outcome of such legal proceedings cannot be predicted with certainty. It is the opinion of management that the ultimate resolution of such proceedings and actions will not have a material impact on the Company's consolidated financial position or results of operations.
Guarantees
As part of its role as operator of the Northern Courier pipeline, TC Energy has guaranteed the financial performance of the pipeline related to delivery and terminalling of bitumen and diluent and contingent financial obligations under sub-lease agreements.
188 | TC Energy Consolidated Financial Statements 2020


TC Energy and its partner on the Sur de Texas pipeline, IEnova, have jointly guaranteed the financial performance of the entity which owns the pipeline. Such agreements include a guarantee and a letter of credit which are primarily related to the delivery of natural gas.
TC Energy and its joint venture partner on Bruce Power, BPC Generation Infrastructure Trust, have each severally guaranteed certain contingent financial obligations of Bruce Power related to a lease agreement and contractor and supplier services.
The Company and its partners in certain other jointly-owned entities have either (i) jointly and severally, (ii) jointly or (iii) severally guaranteed the financial performance of these entities. Such agreements include guarantees and letters of credit which are primarily related to construction services and the payment of liabilities. For certain of these entities, any payments made by TC Energy under these guarantees in excess of its ownership interest are to be reimbursed by its partners.
The carrying value of these guarantees has been recorded in Accounts payable and other and Other long-term liabilities on the Consolidated balance sheet. Information regarding the Company’s guarantees were as follows:
20202019
at December 31Term
Potential Exposure1
Carrying Value
Potential Exposure1
Carrying Value
(millions of Canadian $)
Northern Courier pipelineto 2055300 26 300 27 
Sur de Texasto 2021100  109  
Bruce Powerto 202388  88  
Other jointly-owned entitiesto 204378 4 100 10 
566 30 597 37 
1TC Energy's share of the potential estimated current or contingent exposure.
TC Energy Consolidated Financial Statements 2020 | 189


29.  VARIABLE INTEREST ENTITIES
A VIE is a legal entity that does not have sufficient equity at risk to finance its activities without additional subordinated financial support or is structured such that equity investors lack the ability to make significant decisions relating to the entity’s operations through voting rights or do not substantively participate in the gains and losses of the entity.
In the normal course of business, the Company consolidates VIEs in which it has a variable interest and for which it is considered to be the primary beneficiary. VIEs in which the Company has a variable interest but is not the primary beneficiary are considered non-consolidated VIEs and are accounted for as equity investments.
Consolidated VIEs
The Company's consolidated VIEs consist of legal entities where the Company is the primary beneficiary. As the primary beneficiary, the Company has the power, through voting or similar rights, to direct the activities of the VIE that most significantly impact economic performance including purchasing or selling significant assets; maintenance and operations of assets; incurring additional indebtedness; or determining the strategic operating direction of the entity. In addition, the Company has the obligation to absorb losses or the right to receive benefits from the consolidated VIE that could potentially be significant to the VIE.
A significant portion of the Company’s assets are held through VIEs in which the Company holds a 100 per cent voting interest, the VIE meets the definition of a business and the VIE’s assets can be used for general corporate purposes. The consolidated VIEs whose assets cannot be used for purposes other than for the settlement of the VIE’s obligations, or are not considered a business, were as follows:
at December 31
(millions of Canadian $)20202019
ASSETS
Current Assets
Cash and cash equivalents254 106 
Accounts receivable61 88 
Inventories26 27 
Other 11 8 
352 229 
Plant, Property and Equipment3,325 3,050 
Equity Investments714 785 
Goodwill424 431 
Other Long-Term Assets8  
4,823 4,495 
LIABILITIES
Current Liabilities
Accounts payable and other109 70 
Redeemable non-controlling interest633  
Accrued interest21 21 
Current portion of long-term debt579 187 
1,342 278 
Regulatory Liabilities60 45 
Other Long-Term Liabilities11 9 
Deferred Income Tax Liabilities12 9 
Long-Term Debt2,468 2,694 
3,893 3,035 
190 | TC Energy Consolidated Financial Statements 2020


Certain consolidated VIEs have a redeemable non-controlling interest that ranks above the Company's equity interest. Refer to Note 20, Redeemable non-controlling interest and non-controlling interests and Note 30, Subsequent events, for additional information.
Non-Consolidated VIEs
The Company’s non-consolidated VIEs consist of legal entities where the Company is not the primary beneficiary as it does not have the power to direct the activities that most significantly impact the economic performance of these VIEs or where this power is shared with third parties. The Company contributes capital to these VIEs and receives ownership interests that provide it with residual claims on assets after liabilities are paid.
The carrying value of these VIEs and the maximum exposure to loss as a result of the Company's involvement with these VIEs were as follows:
at December 31
(millions of Canadian $)20202019
Balance sheet
Equity investments
Bruce Power3,306 3,256 
Pipeline equity investments and other1
1,371 1,464 
Off-balance sheet2
Bruce Power1,183 1,521 
Pipeline equity investments1,506 425 
Maximum exposure to loss7,366 6,666 
1    Includes equity investment in Portlands Energy Centre classified as Assets held for sale as at December 31, 2019 and sold on April 29, 2020. Refer to Note 27, Acquisitions and dispositions, for additional information.
2    Includes maximum potential exposure to guarantees plus future expected and contingent funding commitments.
TC Energy Consolidated Financial Statements 2020 | 191


30.  SUBSEQUENT EVENTS
Columbia Pipeline Group, Inc. Debt Issuance
On December 9, 2020, the Company's subsidiary, Columbia, entered into a US$4.2 billion Delayed Draw Term Loan due in June 2022, bearing interest at a floating rate. In January 2021, US$4.0 billion was drawn on the Delayed Draw Term Loan and the total availability under the loan agreement was reduced accordingly.
Keystone XL Presidential Permit Revocation
On January 20, 2021, U.S. President Biden revoked the Presidential Permit for the Keystone XL pipeline. As a result and as of this date, the Company suspended the advancement of the Keystone XL pipeline project while it assesses the implications of the revocation and considers its options along with its partner, the Government of Alberta, and other stakeholders. The Company ceased capitalizing costs, including interest during construction, and also ceased accruing a return on the Government of Alberta Class A Interests, effective January 20, 2021. The decision to suspend advancement of the Keystone XL pipeline also represents a triggering event under GAAP requiring the Company to evaluate the Keystone XL capitalized project costs for impairment. Given the uncertainty related to the Keystone XL project, the Company expects to record a predominantly non-cash impairment charge in first quarter 2021. The carrying value of plant, property and equipment for Keystone XL, including capitalized interest, was $2.8 billion at December 31, 2020.
Accounting implications, in the first quarter of 2021 and beyond, will depend on the assessment and consideration of options as noted above, including the impacts that this has on contractual arrangements. As a result, the magnitude of the impairment charge and related recoveries cannot be quantified at this time.
The following factors will be considered in determining the amount and timing of the impairment charge and related recoveries, although these will be dependent on future decisions and developments:
the viability of projects currently associated with the Keystone XL pipeline, including Heartland Pipeline, TC Terminals and Keystone Hardisty Terminal, is also being reviewed. The carrying value of these projects in Other long-term assets on the Consolidated balance sheet at December 31, 2020 was $0.2 billion
incremental liabilities incurred for contractual commitments
specified contractual recoveries
recoverable value of the project's tangible assets
income tax impact of the above items, including the assessment of any income tax valuation allowances and deferred income tax assets recorded at December 31, 2020.
Any principal outstanding under the project-level credit facility is fully guaranteed by the Government of Alberta without recourse to the Company. The suspension of the advancement of the project does not require immediate repayment of the debt as repayment is dependent upon certain other events or decisions specified in the credit facility agreement. While the credit facility remains outstanding, the Company continues to be responsible for ongoing interest charges. For further discussion of subsequent events related to the project-level credit facility, refer to Note 20, Redeemable non-controlling interest and non-controlling interests.



192 | TC Energy Consolidated Financial Statements 2020
Document
EXHIBIT 23.1


Consent of Independent Registered Public Accounting Firm
We, KPMG LLP, consent to the use of our reports, each dated February 17, 2021, with respect to the consolidated financial statements and the effectiveness of internal control over financial reporting included in this annual report on Form 40-F.
We, KPMG LLP, also consent to the incorporation by reference of such reports in:
- Registration Statements No. 333-5916, No. 333-8470, No. 333-9130, No. 333-151736, No. 333-184074, No. 333-227114 and No. 333-237979 on Form S-8 of TC Energy Corporation;
- Registration Statements No. 33-13564 and No. 333-6132 on Form F-3 of TC Energy Corporation;
- Registration Statement No. 333-252004 on Form F-4 of TC Energy Corporation;
- Registration Statements No. 333-151781, No. 333-161929, No. 333-208585, No. 333-250988 and No. 333-252123 on Form F-10 of TC Energy Corporation; and,
- Registration Statement No. 333-235546 on Form F-10 of TransCanada PipeLines Limited.

/s/ KPMG LLP
Chartered Professional Accountants
February 17, 2021
Calgary, Canada




Document
EXHIBIT 31.1


Certifications

I, François L. Poirier, certify that:
1.I have reviewed this annual report on Form 40-F of TC Energy Corporation;
2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the issuer as of, and for, the periods presented in this report;
4.The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the issuer, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
(c)Evaluated the effectiveness of the issuer's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
(d)Disclosed in this report any change in the issuer's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the issuer's internal control over financial reporting; and
5.The issuer's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the issuer's auditors and the audit committee of the issuer's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the issuer's ability to record, process, summarize and report financial information; and
(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the issuer's internal control over financial reporting.

Dated February 18, 2021

/s/ FRANÇOIS L. POIRIER
 
François L. Poirier
President and Chief Executive Officer
1 of 2




Certifications

I, François L. Poirier, certify that:
1.I have reviewed this annual report on Form 40-F of TransCanada PipeLines Limited;
2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the issuer as of, and for, the periods presented in this report;
4.The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the issuer, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
(c)Evaluated the effectiveness of the issuer's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
(d)Disclosed in this report any change in the issuer's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the issuer's internal control over financial reporting; and
5.The issuer's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the issuer's auditors and the audit committee of the issuer's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the issuer's ability to record, process, summarize and report financial information; and
(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the issuer's internal control over financial reporting.

Dated February 18, 2021

/s/ FRANÇOIS L. POIRIER
 
François L. Poirier
President and Chief Executive Officer
2 of 2
Document
EXHIBIT 31.2


Certifications

I, Donald R. Marchand, certify that:
1.I have reviewed this annual report on Form 40-F of TC Energy Corporation;
2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the issuer as of, and for, the periods presented in this report;
4.The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the issuer, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
(c)Evaluated the effectiveness of the issuer's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
(d)Disclosed in this report any change in the issuer's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the issuer's internal control over financial reporting; and
5.The issuer's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the issuer's auditors and the audit committee of the issuer's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the issuer's ability to record, process, summarize and report financial information; and
(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the issuer's internal control over financial reporting.

Dated February 18, 2021

/s/ DONALD R. MARCHAND
 
Donald R. Marchand
Executive Vice-President, Strategy & Corporate Development
and Chief Financial Officer
1 of 2




Certifications

I, Donald R. Marchand, certify that:
1.I have reviewed this annual report on Form 40-F of TransCanada PipeLines Limited;
2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the issuer as of, and for, the periods presented in this report;
4.The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the issuer, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
(c)Evaluated the effectiveness of the issuer's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
(d)Disclosed in this report any change in the issuer's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the issuer's internal control over financial reporting; and
5.The issuer's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the issuer's auditors and the audit committee of the issuer's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the issuer's ability to record, process, summarize and report financial information; and
(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the issuer's internal control over financial reporting.

Dated February 18, 2021

/s/ DONALD R. MARCHAND
 
Donald R. Marchand
Executive Vice-President, Strategy & Corporate Development
and Chief Financial Officer
2 of 2
Document
EXHIBIT 32.1


TC ENERGY CORPORATION

450 – 1st Street S.W.
Calgary, Alberta, Canada
T2P 5H1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER
UNDER SECTION 906 OF SARBANES-OXLEY ACT OF 2002

I, François L. Poirier, the Chief Executive Officer of TC Energy Corporation (the "Company"), in compliance with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, hereby certify, in connection with the Company's Annual report as filed on Form 40‑F for the fiscal year ended December 31, 2020 with the Securities and Exchange Commission (the "Report"), that:
1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ FRANÇOIS L. POIRIER
 
François L. Poirier
Chief Executive Officer
February 18, 2021
1 of 2




TRANSCANADA PIPELINES LIMITED

450 – 1st Street S.W.
Calgary, Alberta, Canada
T2P 5H1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER
UNDER SECTION 906 OF SARBANES-OXLEY ACT OF 2002

I, François L. Poirier, the Chief Executive Officer of TransCanada PipeLines Limited (the "Company"), in compliance with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, hereby certify, in connection with TC Energy Corporation's Annual report as filed on Form 40-F for the fiscal year ended December 31, 2020 with the Securities and Exchange Commission (the "Report"), that:
1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ FRANÇOIS L. POIRIER
 
François L. Poirier
Chief Executive Officer
February 18, 2021

2 of 2
Document
EXHIBIT 32.2


TC ENERGY CORPORATION

450 – 1st Street S.W.
Calgary, Alberta, Canada
T2P 5H1

CERTIFICATION OF CHIEF FINANCIAL OFFICER
UNDER SECTION 906 OF SARBANES-OXLEY ACT OF 2002

I, Donald R. Marchand, the Chief Financial Officer of TC Energy Corporation (the "Company"), in compliance with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, hereby certify, in connection with the Company's Annual report as filed on Form 40-F for the fiscal year ended December 31, 2020 with the Securities and Exchange Commission (the "Report"), that:
1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ DONALD R. MARCHAND
 
Donald R. Marchand
Chief Financial Officer
February 18, 2021

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TRANSCANADA PIPELINES LIMITED

450 – 1st Street S.W.
Calgary, Alberta, Canada
T2P 5H1

CERTIFICATION OF CHIEF FINANCIAL OFFICER
UNDER SECTION 906 OF SARBANES-OXLEY ACT OF 2002

I, Donald R. Marchand, the Chief Financial Officer of TransCanada PipeLines Limited (the "Company"), in compliance with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, hereby certify, in connection with TC Energy Corporation's Annual report as filed on Form 40-F for the fiscal year ended December 31, 2020 with the Securities and Exchange Commission (the "Report"), that:
1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ DONALD R. MARCHAND
 
Donald R. Marchand
Chief Financial Officer
February 18, 2021

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