HRNNF / Hydro One Limited - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Hydro One Limited
US ˙ OTCPK ˙ CA4488112083

Mga Batayang Estadistika
LEI 5493007QZDXTP1W2VL44
CIK 1114445
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Hydro One Limited
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 21, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2025 Commission File Number: 001-36115 HYDRO ONE

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal

August 21, 2025 EX-99.1

Hydro One Inc. Prices Offering of $1.1 Billion Medium Term Notes under Sustainable Financing Framework

EX-99.1 Exhibit 99.1 Hydro One Inc. Prices Offering of $1.1 Billion Medium Term Notes under Sustainable Financing Framework TORONTO, August 20, 2025—Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $1.1 billion of Medium T

August 18, 2025 EX-FILING FEES

Security Type

Calculation of Filing Fee Tables F-10 HYDRO ONE INC Table 1: Newly Registered Securities ☐Not Applicable Security Type Security Class Title Fee Calculation Rule or Instruction Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to be Paid 1 Debt Debt Securities 457(o) $ 3,000,000,000.

August 18, 2025 F-X

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING A. Name of issuer or person filing (“Filer”): Hydro One Inc. B. (1) This is [check one] ☒ an original filing

F-X UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING A. Name of issuer or person filing (“Filer”): Hydro One Inc. B. (1) This is [check one] ☒ an original filing for the Filer ☐ an amended filing for the Filer (2) Check the following box if you are filing the Form F-X in paper in accordance with Regulation

August 18, 2025 F-10

As filed with the Securities and Exchange Commission on August 18, 2025

F-10 Table of Contents As filed with the Securities and Exchange Commission on August 18, 2025 Registration No.

August 18, 2025 EX-7.1

INDENTURE by and among HYDRO ONE INC. as the Issuer as the U.S. Trustee as the Canadian Co-Trustee Dated as of        

EX-7.1 Exhibit 7.1 INDENTURE by and among HYDRO ONE INC. as the Issuer AND as the U.S. Trustee AND as the Canadian Co-Trustee Dated as of         CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318, INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939, AS AMENDED: Trust Indenture Act Section Indenture Section Section 310 (a)(1) 6.9 (a)(2) 6.9 (a)(3) 6.9 (a)(4) Not Applicable (a)(5) 6.

August 14, 2025 EX-99.1

Hydro One Limited Board of Directors appoints Harry Taylor as Interim President and CEO as David Lebeter takes a temporary compassionate care leave Board also appoints Michael W. Rencheck to its Board of Directors

EX-99.1 Exhibit 99.1 Hydro One Limited Board of Directors appoints Harry Taylor as Interim President and CEO as David Lebeter takes a temporary compassionate care leave Board also appoints Michael W. Rencheck to its Board of Directors TORONTO, August 14, 2025 – Today, Hydro One Limited (Hydro One) announced that David Lebeter, President and CEO, will take a temporary compassionate care leave, effe

August 14, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2025 Commission File Number: 001-36115 HYDRO ONE

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal

August 13, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2025 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exec

August 13, 2025 EX-99.1

Six months ended June 30, 2025 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2025 2,957 9,454 (18) 12,393 65 12,458

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and six months ended June 30, 2025 and 2024 Three months ended June 30 Six months ended June 30 (millions of Canadian dollars, except per share amounts) 2025 2024 2025 2024 Revenues Distribution (includes related party revenues of $111 and $222 (2024 - $107 and $213) for the th

August 13, 2025 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Harry Taylor, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

August 13, 2025 EX-99.2

Three months ended June 30 Six months ended June 30 (millions of dollars, except as otherwise noted) 2025 2024 Change 2025 2024 Change Transmission 622 583 6.7 % 1,258 1,136 10.7 % Distribution 1,434 1,436 (0.1 %) 3,195 3,041 5.1 % Total revenues 2,0

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2025 and 2024 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc.

August 13, 2025 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

June 4, 2025 EX-99.1

Hydro One Limited announces Melissa Sonberg as the Chair of the Board of Directors

Exhibit 99.1 Hydro One Limited announces Melissa Sonberg as the Chair of the Board of Directors TORONTO, June 4, 2025—Hydro One Limited announced today that Melissa Sonberg has been appointed as the new Chair of the Board, effective June 4, 2025. Ms. Sonberg joined the Board of Directors on August 14, 2018. “It is a privilege to assume the role as Chair of the Board of Directors at such a pivotal

June 4, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2025 Commission File Number: 001-36115 HYDRO ONE IN

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal execut

June 3, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2025 Commission File Number: 001-36115 HYDRO ONE IN

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

June 3, 2025 EX-99.1

Members of the Power Workers’ Union ratify collective agreement

Exhibit 99.1 Members of the Power Workers’ Union ratify collective agreement TORONTO, June 2, 2025 – Hydro One Inc. (Hydro One) and the Power Workers’ Union (PWU) are pleased to announce that PWU members have ratified the tentative agreement reached on May 5, 2025. The new agreement is effective from October 1, 2025, to March 31, 2028, and combines the main and Customer Service Organization agreem

May 16, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

May 16, 2025 EX-99.1

HYDRO ONE INC. 2024 STATEMENT OF EXECUTIVE COMPENSATION April 28, 2025

Exhibit 99.1 HYDRO ONE INC. 2024 STATEMENT OF EXECUTIVE COMPENSATION April 28, 2025 I. BACKGROUND In March 2019, Hydro One Inc. was granted exemptive relief (the “Executive Compensation Exemptive Relief”) by securities regulatory authorities in each of the provinces of Canada, exempting Hydro One Inc. from the requirement to provide executive compensation disclosure required by securities laws in

May 16, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

May 16, 2025 EX-99.1

Hydro One’s 2024 Sustainability Report focuses on strategic and sustainable growth to deliver for Ontarians

EX-99.1 Exhibit 99.1 Hydro One’s 2024 Sustainability Report focuses on strategic and sustainable growth to deliver for Ontarians TORONTO, May 16, 2025 – Hydro One Limited (Hydro One) announced the release of its 2024 Sustainability Report. The report, titled A Better and Brighter Future for All, provides a balanced account of Hydro One’s performance across a range of environmental, social and gove

May 8, 2025 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

May 8, 2025 EX-99.1

Three months ended March 31, 2025 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2025 2,957 9,454 (18) 12,393 65 12,

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three months ended March 31, 2025 and 2024 Three months ended March 31 (millions of Canadian dollars, except per share amounts) 2025 2024 Revenues Distribution (includes $111 related party revenues; 2024 - $106) (Note 22) 1,761 1,605 Transmission (includes $622 related party revenues

May 8, 2025 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Harry Taylor, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

May 8, 2025 EX-99.2

Three months ended March 31 (millions of dollars, except as otherwise noted) 2025 2024 Change Transmission 636 553 15.0 % Distribution 1,761 1,605 9.7 % Total revenues 2,397 2,158 11.1 % Transmission 636 553 15.0 % Distribution revenues, net of purch

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2025 and 2024 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc. (Hydro

May 8, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

May 6, 2025 EX-99.1

Hydro One and the Power Workers’ Union reach tentative agreements

EX-99.1 Exhibit 99.1 News release Hydro One and the Power Workers’ Union reach tentative agreements Toronto, May 5, 2025 – Hydro One Inc. (Hydro One) and the Power Workers’ Union (PWU) are pleased to announce that tentative agreements have been reached for the two collective agreements covering employees in front-line roles across the company’s operations in Ontario. Both tentative agreements rema

May 6, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

April 30, 2025 EX-99.1

Tim Hodgson resigns as Chair of the Board of Directors

Exhibit 99.1 Tim Hodgson resigns as Chair of the Board of Directors TORONTO, April 29, 2025—Hydro One Limited announced today that Tim Hodgson has resigned from his position as Chair of the Board of the Directors after successfully running in the federal election, during which time he was on an unpaid leave of absence. The Board of Directors has launched a process to select a new Chair. In the int

April 30, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2025 Commission File Number: 001-36115 HYDRO ONE I

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal e

March 27, 2025 EX-99.1

Hydro One Limited announces Susan Wolburgh Jenah as Interim Chair of the Board of Directors

Exhibit 99.1 News release Hydro One Limited announces Susan Wolburgh Jenah as Interim Chair of the Board of Directors TORONTO, March 25, 2025 – Hydro One Limited announced today that Susan Wolburgh Jenah was selected by the Board of Directors to serve as Interim Chair of the Board. The current Chair, Timothy Hodgson, has taken an unpaid leave of absence to run in the federal election for the Liber

March 27, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: March 2025 Commission File Number: 001-36115 HYDRO ONE I

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: March 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal execu

February 20, 2025 EX-99.8

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.8 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the “Company”) on Form 40-F for the year ended December 31, 2024 (the “Report”) as filed with the U.S. Securities and Exchange Commission, I, Harry Taylor, Executive Vice President, Chief Financial and Regulatory Officer of the Company, certify, pursuant to 1

February 20, 2025 EX-99.1

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2024 February 20, 2025 TABLE OF CONTENTS

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2024 February 20, 2025 TABLE OF CONTENTS GLOSSARY 1 PRESENTATION OF INFORMATION 7 FORWARD-LOOKING INFORMATION 8 ELECTRICITY INDUSTRY OVERVIEW 12 General Overview 12 Overview of an Electricity System 12 THE ELECTRICITY INDUSTRY IN ONTARIO 13 Regulation of Transmission and Distribution 13 Transmission 15 Distribution 16 Issue

February 20, 2025 EX-99.1

Year ended December 31, 2024 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest (Note 27) Total Equity January 1, 2024 2,957 9,033 (9) 11,981 65

HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements for the year ended

February 20, 2025 EX-99.4

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

Exhibit 99.4 KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

February 20, 2025 EX-99.9

CODE OF BUSINESS CONDUCT TABLE OF CONTENTS Page Our Core Values............................................................................................................1 Application of this Code.....................................................

CODE OF BUSINESS CONDUCT TABLE OF CONTENTS Page Our Core Values............................................................................................................1 Application of this Code..............................................................................................2 Who Must Follow This Code?.............................................................................2 Wh

February 20, 2025 EX-97

Page 1 of 11 HYDRO ONE LIMITED COMPENSATION RECOUPMENT POLICY Incentive compensation received by executives and certain employees with material oversight responsibility over financial statements of Hydro One Limited (the “Company”, and including its

Page 1 of 11 HYDRO ONE LIMITED COMPENSATION RECOUPMENT POLICY Incentive compensation received by executives and certain employees with material oversight responsibility over financial statements of Hydro One Limited (the “Company”, and including its subsidiaries, “Hydro One”) is subject to recoupment in the circumstances set out in this compensation recoupment policy (this “Policy”).

February 20, 2025 EX-99.6

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.6 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Harry Taylor, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

February 20, 2025 EX-99.3

Year ended December 31 2024 2023 Transmission 53 % 53 % Distribution 47 % 47 % Other — % — %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2024 and 2023 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto of Hydro One Inc. (Hydro One or the Company) for the year ended December 31, 2024 (together,

February 20, 2025 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2025 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2025 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

February 20, 2025 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES 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, 2024 Commission File Number 001-36115 Hydro One Inc. (Exact name of Registrant as specified in its

February 20, 2025 EX-99.2

Year ended December 31 2024 2023 Transmission 53 % 53 % Distribution 47 % 47 % Other — % — %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2024 and 2023 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto of Hydro One Inc. (Hydro One or the Company) for the year ended December 31, 2024 (together,

February 20, 2025 EX-99.7

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the “Company”) on Form 40-F for the year ended December 31, 2024 (the “Report”) as filed with the U.S. Securities and Exchange Commission, I, David Lebeter, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as

February 20, 2025 EX-99.5

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.5 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, David Lebeter, President and Chief Executive Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 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

February 20, 2025 EX-99.2

Year ended December 31, 2024 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest (Note 27) Total Equity January 1, 2024 2,957 9,033 (9) 11,981 65

HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements for the year ended

December 17, 2024 EX-99.1

Hydro One selected to invest in a critical transmission line in northeast Ontario to be built in partnership with First Nations Directive from the provincial government prioritizes the development and construction of a proposed transmission line betw

Exhibit 99.1 Hydro One selected to invest in a critical transmission line in northeast Ontario to be built in partnership with First Nations Directive from the provincial government prioritizes the development and construction of a proposed transmission line between Wawa and Timmins Timmins, ON, December 17, 2024 – Today, the Minister of Energy and Electrification directed the Ontario Energy Board

December 17, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: December 2024 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: December 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

December 10, 2024 EX-99.1

Hydro One Inc. Prices Offering of $750 Million Medium Term Notes under Sustainable Financing Framework

Exhibit 99.1 Hydro One Inc. Prices Offering of $750 Million Medium Term Notes under Sustainable Financing Framework TORONTO, December 9, 2024 - Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $750 million of Medium Term N

December 10, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: December 2024 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: December 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

November 7, 2024 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Harry Taylor, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

November 7, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: Nov 2024 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: Nov 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

November 7, 2024 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

November 7, 2024 EX-99.1

Nine months ended September 30, 2024 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2024 2,957 9,033 (9) 11,981 65 1

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and nine months ended September 30, 2024 and 2023 Three months ended September 30 Nine months ended September 30 (millions of Canadian dollars, except per share amounts) 2024 2023 2024 2023 Revenues Distribution (includes related party revenues of $106 and $319 (2023 - $90 and

November 7, 2024 EX-99.2

Three months ended September 30 Nine months ended September 30 (millions of dollars, except as otherwise noted) 2024 2023 Change 2024 2023 Change Transmission 630 594 6.1 % 1,766 1,710 3.3 % Distribution 1,551 1,329 16.7 % 4,592 4,123 11.4 % Total re

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2024 and 2023 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro On

August 16, 2024 EX-99.1

Hydro One Inc. Prices Offering of $1.2 Billion Medium Term Notes under Sustainable Financing Framework

Exhibit 99.1 Hydro One Inc. Prices Offering of $1.2 Billion Medium Term Notes under Sustainable Financing Framework TORONTO, August 15, 2024—Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $1.2 billion of Medium Term Note

August 16, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2024 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exec

August 14, 2024 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

August 14, 2024 EX-99.1

Six months ended June 30, 2024 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2024 2,957 9,033 (9) 11,981 65 12,046

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and six months ended June 30, 2024 and 2023 Three months ended June 30 Six months ended June 30 (millions of Canadian dollars, except per share amounts) 2024 2023 2024 2023 Revenues Distribution (includes related party revenues of $107 and $213 (2023 - $90 and $177) for the thr

August 14, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: Aug 2024 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: Aug 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

August 14, 2024 EX-99.2

As at June 30, 2024 December 31, 2023 Transmission 60 % 60 % Distribution 39 % 39 % Other 1 % 1 %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2024 and 2023 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc.

August 14, 2024 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Harry Taylor, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

June 3, 2024 EX-99.1

Hydro One Limited announces Harry P. Taylor as new Executive Vice President and Chief Financial and Regulatory Officer

Exhibit 99.1 Hydro One Limited announces Harry P. Taylor as new Executive Vice President and Chief Financial and Regulatory Officer TORONTO, June 3, 2024 – Today, Hydro One Limited (Hydro One) announced Harry Taylor as its new Executive Vice President and Chief Financial and Regulatory Officer, effective June 10, 2024. Mr. Taylor is a highly regarded, strategic executive with more than 30 years of

June 3, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2024 Commission File Number: 001-36115 HYDRO ONE IN

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal execut

May 29, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

May 29, 2024 EX-99.1

Hydro One seeks approval to build the St. Clair transmission line to support economic growth in region

Exhibit 99.1 Hydro One seeks approval to build the St. Clair transmission line to support economic growth in region CHATHAM-KENT, May 28, 2024—Hydro One Networks Inc. (Hydro One) announced today that it has filed an application with the Ontario Energy Board (OEB) to construct a new double-circuit 230 kilovolt transmission line between Lambton Transmission Station (TS) in St. Clair Township and Cha

May 14, 2024 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

May 14, 2024 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Christopher Lopez, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

May 14, 2024 EX-99.2

As at March 31, 2024 December 31, 2023 Transmission 60 % 60 % Distribution 38 % 39 % Other 2 % 1 %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2024 and 2023 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc. (Hydro

May 14, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

May 14, 2024 EX-99.1

Three months ended March 31, 2024 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2024 2,957 9,033 (9) 11,981 65 12,0

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three months ended March 31, 2024 and 2023 Three months ended March 31 (millions of Canadian dollars, except per share amounts) 2024 2023 Revenues Distribution (includes $106 related party revenues; 2023 - $87) (Note 23) 1,605 1,509 Transmission (includes $551 related party revenues;

May 3, 2024 EX-99.1

HYDRO ONE INC. 2023 STATEMENT OF EXECUTIVE COMPENSATION May 3, 2024

Exhibit 99.1 HYDRO ONE INC. 2023 STATEMENT OF EXECUTIVE COMPENSATION May 3, 2024 I. BACKGROUND In March 2019, Hydro One Inc. was granted exemptive relief (the “Executive Compensation Exemptive Relief”) by securities regulatory authorities in each of the provinces of Canada, exempting Hydro One Inc. from the requirement to provide executive compensation disclosure required by securities laws in its

May 3, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

February 13, 2024 EX-99.5

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.5 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, David Lebeter, President and Chief Executive Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 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

February 13, 2024 EX-99.3

Year ended December 31 2023 2022 Transmission 53 % 52 % Distribution 47 % 48 % Other — % — %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2023 and 2022 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto of Hydro One Inc. (Hydro One or the Company) for the year ended December 31, 2023 (together,

February 13, 2024 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F o REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 Commission File Number 001-36115 Hydro One Inc. (Exact name of Registrant as specified in its

February 13, 2024 EX-97

Page 1 of 11 HYDRO ONE LIMITED COMPENSATION RECOUPMENT POLICY Incentive compensation received by executives and certain employees with material oversight responsibility over financial statements of Hydro One Limited (the “Company”, and including its

Page 1 of 11 HYDRO ONE LIMITED COMPENSATION RECOUPMENT POLICY Incentive compensation received by executives and certain employees with material oversight responsibility over financial statements of Hydro One Limited (the “Company”, and including its subsidiaries, “Hydro One”) is subject to recoupment in the circumstances set out in this compensation recoupment policy (this “Policy”).

February 13, 2024 EX-99.9

CODE OF BUSINESS CONDUCT TABLE OF CONTENTS Page Our Core Values................................................................................................... 1 Application of this Code ............................................................

CODE OF BUSINESS CONDUCT TABLE OF CONTENTS Page Our Core Values................................................................................................... 1 Application of this Code ........................................................................................ 2 Who Must Follow This Code? ....................................................................... 2 What is Expected o

February 13, 2024 EX-99.6

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.6 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Christopher Lopez, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact n

February 13, 2024 EX-99.2

Year ended December 31 2023 2022 Transmission 53 % 52 % Distribution 47 % 48 % Other — % — %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2023 and 2022 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto of Hydro One Inc. (Hydro One or the Company) for the year ended December 31, 2023 (together,

February 13, 2024 EX-99.4

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

Exhibit 99.4 KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

February 13, 2024 EX-99.2

Year ended December 31, 2023 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Income Hydro One Shareholder’s Equity Non- controlling Interest (Note 27) Total Equity January 1, 2023 2,957 8,634 5 11,596 66

HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements for the year ended

February 13, 2024 EX-99.1

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2023 February 13, 2024 TABLE OF CONTENTS

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2023 February 13, 2024 TABLE OF CONTENTS GLOSSARY 1 PRESENTATION OF INFORMATION 7 FORWARD-LOOKING INFORMATION 8 ELECTRICITY INDUSTRY OVERVIEW 12 General Overview 12 Overview of an Electricity System 12 THE ELECTRICITY INDUSTRY IN ONTARIO 13 Regulation of Transmission and Distribution 13 Transmission 15 Distribution 16 Issue

February 13, 2024 EX-99.8

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.8 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the “Company”) on Form 40-F for the year ended December 31, 2023 (the “Report”) as filed with the U.S. Securities and Exchange Commission, I, Christopher Lopez, Executive Vice President, Chief Financial and Regulatory Officer of the Company, certify, pursuant

February 13, 2024 EX-99.1

Year ended December 31, 2023 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Income Hydro One Shareholder’s Equity Non- controlling Interest (Note 27) Total Equity January 1, 2023 2,957 8,634 5 11,596 66

HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements for the year ended

February 13, 2024 EX-99.7

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the “Company”) on Form 40-F for the year ended December 31, 2023 (the “Report”) as filed with the U.S. Securities and Exchange Commission, I, David Lebeter, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as

February 13, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2024 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

January 10, 2024 EX-99.1

Hydro One Inc. Prices Offering of $800 Million Medium Term Notes under Sustainable Financing Framework

Exhibit 99.1 Hydro One Inc. Prices Offering of $800 Million Medium Term Notes under Sustainable Financing Framework TORONTO, January 9, 2024 - Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $800 million of Medium Term No

January 10, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2024 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

January 2, 2024 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2024 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2024 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

January 2, 2024 EX-99.1

Hydro One Limited announces search for a new Chief Financial Officer as Chris Lopez intends to step down on June 30, 2024

Exhibit 99.1 News Release Hydro One Limited announces search for a new Chief Financial Officer as Chris Lopez intends to step down on June 30, 2024 TORONTO, January 2, 2024 - Today Hydro One Limited (Hydro One) announced that Chris Lopez intends to step down as Executive Vice President and Chief Financial and Regulatory Officer, to pursue other opportunities as of June 30, 2024. The company will n

December 8, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: December 2023 Commission File Number: 001-36115 HYDRO ON

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: December 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principa

December 8, 2023 EX-99.1

Hydro One Inc. Announces Additional Offering of Medium Term Notes under Sustainable Financing Framework

EX-99.1 Exhibit 99.1 Hydro One Inc. Announces Additional Offering of Medium Term Notes under Sustainable Financing Framework TORONTO, December 7, 2023 - Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an additional offering of $100 mill

November 28, 2023 EX-99.1

Hydro One Inc. Prices Offering of $400 Million Medium Term Notes under Sustainable Financing Framework

Exhibit 99.1 Hydro One Inc. Prices Offering of $400 Million Medium Term Notes under Sustainable Financing Framework TORONTO, November 27, 2023 - Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $400 million aggregate princ

November 28, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

November 8, 2023 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

November 8, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

November 8, 2023 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Christopher Lopez, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

November 8, 2023 EX-99.2

As at September 30, 2023 December 31, 2022 Transmission 60 % 60 % Distribution 39 % 38 % Other 1 % 2 %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2023 and 2022 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro On

November 8, 2023 EX-99.1

Nine months ended September 30, 2023 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2023 2,957 8,634 5 11,596 66 11,

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and nine months ended September 30, 2023 and 2022 Three months ended September 30 Nine months ended September 30 (millions of Canadian dollars, except per share amounts) 2023 2022 2023 2022 Revenues Distribution (includes related party revenues of $90 and $267 (2022 - $72 and $

November 3, 2023 EX-99.1

Hydro One announces the Chatham to Lakeshore Transmission Line is on track to energize southwest Ontario a year ahead of schedule By completing the line early, the Windsor-Essex region will benefit from increased reliability and resiliency, supportin

Exhibit 99.1 Hydro One announces the Chatham to Lakeshore Transmission Line is on track to energize southwest Ontario a year ahead of schedule By completing the line early, the Windsor-Essex region will benefit from increased reliability and resiliency, supporting the region’s clean energy future Chatham-Kent, ON, November 3, 2023 – Today, Hydro One Networks Inc. (Hydro One) announced that the Cha

November 3, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

October 23, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2023 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

October 23, 2023 EX-99.1

Hydro One is investing in critical infrastructure to energize life in northeast and eastern Ontario Directive from the Government of Ontario will drive the development and construction of transmission infrastructure to support economic growth and Rec

Exhibit 99.1 Hydro One is investing in critical infrastructure to energize life in northeast and eastern Ontario Directive from the Government of Ontario will drive the development and construction of transmission infrastructure to support economic growth and Reconciliation in the province SAULT STE. MARIE, ON, October 23, 2023 – Today, the Minister of Energy has directed the Ontario Energy Board

October 17, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2023 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

October 17, 2023 EX-99.1

Hydro One Inc. Prices Offering of $400 Million Medium Term Notes under Sustainable Financing Framework

Exhibit 99.1 Hydro One Inc. Prices Offering of $400 Million Medium Term Notes under Sustainable Financing Framework TORONTO, October 16, 2023 - Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $400 million aggregate princi

September 19, 2023 EX-99.1

Hydro One Inc. Prices Offering of $425 Million Medium Term Notes under Sustainable Financing Framework

Exhibit 99.1 Hydro One Inc. Prices Offering of $425 Million Medium Term Notes under Sustainable Financing Framework TORONTO, September 18, 2023 - Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $425 million aggregate prin

September 19, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2023 Commission File Number: 001-36115 HYDRO O

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal e

September 11, 2023 EX-99.1

Members of the Society of United Professionals ratify collective agreement with Hydro One

EX-99.1 Exhibit 99.1 News release Members of the Society of United Professionals ratify collective agreement with Hydro One TORONTO, September 11, 2023 – Hydro One Inc. (Hydro One) and the Society of United Professionals are pleased to announce that Society-represented employees have voted in favour of renewing their collective agreement, which will be in effect until September 30, 2025. “We’re pl

September 11, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2023 Commission File Number: 001-36115 HYDRO O

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of princip

September 6, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2023 Commission File Number: 001-36115 HYDRO O

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal e

September 6, 2023 EX-99.1

Hydro One seeks approval to upgrade Toronto’s transmission system and unlock economic potential The Etobicoke Greenway Project supports the city’s growing energy needs

Exhibit 99.1 Hydro One seeks approval to upgrade Toronto’s transmission system and unlock economic potential The Etobicoke Greenway Project supports the city’s growing energy needs TORONTO, September 5, 2023 – Hydro One Networks Inc. (Hydro One) announced today that it has filed an application with the Ontario Energy Board (OEB) to upgrade an existing transmission line and operate it at a higher v

August 21, 2023 EX-99.1

Members of the Power Workers’ Union ratify customer service operations collective agreement with Hydro One

Exhibit 99.1 News release Members of the Power Workers’ Union ratify customer service operations collective agreement with Hydro One TORONTO, August 21, 2023 – Hydro One Inc. (Hydro One) is pleased to announce that Power Workers’ Union (PWU) members have voted in favour of the customer service operations collective agreement, which will be in effect until September 30, 2025. “As a customer-first o

August 21, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exec

August 16, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 001-36115 HYDRO ONE

6-K 1 d530486d6k.htm 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (

August 16, 2023 EX-99.1

Members of the Power Workers’ Union ratify main collective agreement with Hydro One

Exhibit 99.1 News release Members of the Power Workers’ Union ratify main collective agreement with Hydro One TORONTO, August 16, 2023 – Hydro One Inc. (Hydro One) is pleased to announce that Power Workers’ Union (PWU) members have voted in favour of the main collective agreement, which will be in effect until September 30, 2025. “I want to extend my thanks to the Power Workers’ Union leadership a

August 15, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exec

August 15, 2023 EX-99.1

Hydro One and the Society of United Professionals reach tentative settlement

Exhibit 99.1 News release Hydro One and the Society of United Professionals reach tentative settlement TORONTO, August 15, 2023 - Hydro One Inc. (Hydro One) and the Society of United Professionals are pleased to announce a tentative settlement of a collective agreement covering employees in engineering, supervisory and professional roles across the company’s operations in Ontario. “The employees r

August 9, 2023 EX-99.1

Six months ended June 30, 2023 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2023 2,957 8,634 5 11,596 66 11,662 Ne

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and six months ended June 30, 2023 and 2022 Three months ended June 30 Six months ended June 30 (millions of Canadian dollars, except per share amounts) 2023 2022 2023 2022 Revenues Distribution (includes related party revenues of $90 and $177 (2022 - $70 and $142) for the thre

August 9, 2023 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Christopher Lopez, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

August 9, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: Aug 2023 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: Aug 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

August 9, 2023 EX-99.2

As at June 30, 2023 December 31, 2022 Transmission 60 % 60 % Distribution 39 % 38 % Other 1 % 2 %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2023 and 2022 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc.

August 9, 2023 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

August 1, 2023 EX-99.1

Hydro One with the support of nine First Nations partners seeks approval to construct the Waasigan Transmission Line Project from the Ontario Energy Board Once built, the Waasigan Transmission Line will enable a clean energy future and economic growt

EX-99.1 Exhibit 99.1 Hydro One with the support of nine First Nations partners seeks approval to construct the Waasigan Transmission Line Project from the Ontario Energy Board Once built, the Waasigan Transmission Line will enable a clean energy future and economic growth in northwest Ontario along with economic benefits for Indigenous communities THUNDER BAY, July 31, 2023 – Hydro One Inc. (Hydro

August 1, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: July 2023 Commission File Number: 001-36115 HYDRO ONE IN

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: July 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal execut

June 30, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2023 Commission File Number: 001-36115 HYDRO ONE IN

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

June 30, 2023 EX-99.1

Hydro One and the Power Workers’ Union reach tentative settlement

Exhibit 99.1 News release Hydro One and the Power Workers’ Union reach tentative settlement TORONTO, June 30, 2023 – Hydro One Inc. (Hydro One) is pleased to announce it has reached tentative settlements for two collective agreements with the Power Workers’ Union (PWU) covering employees in front-line roles across the company’s operations in Ontario. “Hydro One is pleased to reach these two tentat

May 5, 2023 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Christopher Lopez, Executive Vice President, Chief Financial and Regulatory Officer, Hydro One Inc.

May 5, 2023 EX-99.1

Three months ended March 31, 2023 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Income Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2023 2,957 8,634 5 11,596 66 11,6

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three months ended March 31, 2023 and 2022 Three months ended March 31 (millions of Canadian dollars, except per share amounts) 2023 2022 Revenues Distribution (includes $87 related party revenues; 2022 - $72) (Note 23) 1,509 1,517 Transmission (includes $553 related party revenues;

May 5, 2023 EX-99.2

As at March 31, 2023 December 31, 2022 Transmission 60 % 60 % Distribution 39 % 38 % Other 1 % 2 %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2023 and 2022 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc. (Hydro

May 5, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 001-36115 HYDRO ONE INC

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

May 5, 2023 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, David Lebeter, President and Chief Executive Officer, Hydro One Inc.

May 3, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 001-36115 HYDRO ONE INC

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

May 3, 2023 EX-99.1

HYDRO ONE INC. 2022 STATEMENT OF EXECUTIVE COMPENSATION May 3, 2023

EX-99.1 Exhibit 99.1 HYDRO ONE INC. 2022 STATEMENT OF EXECUTIVE COMPENSATION May 3, 2023 I. BACKGROUND In March 2019, Hydro One Inc. was granted exemptive relief (the “Executive Compensation Exemptive Relief”) by securities regulatory authorities in each of the provinces of Canada, exempting Hydro One Inc. from the requirement to provide executive compensation disclosure required by securities law

April 25, 2023 EX-99.1

Hydro One to invest in critical electricity infrastructure to support mining operations in northwest Ontario Letter from the Independent Electricity System Operator confirms the need to build Phase 2 of the Waasigan Transmission Line project

EX-99.1 Exhibit 99.1 News Release Hydro One to invest in critical electricity infrastructure to support mining operations in northwest Ontario Letter from the Independent Electricity System Operator confirms the need to build Phase 2 of the Waasigan Transmission Line project TORONTO, April 25, 2023 – Hydro One Inc. (Hydro One) announced today it has received a letter from the Independent Electrici

April 25, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2023 Commission File Number: 001-36115 HYDRO ONE I

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal e

April 13, 2023 EX-99.1

Hydro One announces promotion of key operations leaders and Executive Leadership Team structure changes to enable economic growth and a clean energy future Chris Lopez appointed EVP, Chief Financial and Regulatory Officer, Megan Telford appointed EVP

EX-99.1 Exhibit 99.1 News Release Hydro One announces promotion of key operations leaders and Executive Leadership Team structure changes to enable economic growth and a clean energy future Chris Lopez appointed EVP, Chief Financial and Regulatory Officer, Megan Telford appointed EVP, Strategy, Energy Transition, Human Resources and Safety, Teri French promoted to EVP, Operations and Customer Expe

April 13, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2023 Commission File Number: 001-36115 HYDRO ONE I

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal e

February 23, 2023 EX-99.1

CODE OF BUSINESS CONDUCT

EX-99.1 Exhibit 99.1 CODE OF BUSINESS CONDUCT TABLE OF CONTENTS Page Our Core Values 1 Application of this Code 2 Who Must Follow This Code? 2 What is Expected of Me? 2 What Else is Expected of Supervisors? 3 What Happens if I Violate This Code? 3 What if I Have Questions? 3 Standards of Business Conduct 4 Health and Safety 4 Respecting Each Other: No Discrimination or Workplace Harassment 5 Diver

February 23, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2023 Commission File Number: 001-36115 HYDRO ON

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principa

February 14, 2023 EX-99.6

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.6 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Christopher Lopez, Chief Financial Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 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

February 14, 2023 EX-99.3

Year ended December 31 2022 2021 Transmission 52 % 51 % Distribution 48 % 49 % Other — % — %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2022 and 2021 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto of Hydro One Inc. (Hydro One or the Company) for the year ended December 31, 2022 (together,

February 14, 2023 EX-99.5

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.5 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, David Lebeter, President and Chief Executive Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 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

February 14, 2023 EX-99.2

Year ended December 31, 2022 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Income Hydro One Shareholder’s Equity Non- controlling Interest (Note 27) Total Equity January 1, 2022 2,957 8,229 (14) 11,172

HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements for the year ended

February 14, 2023 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES 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, 2022 Commission File Number 001-36115 Hydro One Inc. (Exact name of Registrant as specified in its

February 14, 2023 EX-99.1

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2022 February 14, 2023 TABLE OF CONTENTS

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2022 February 14, 2023 TABLE OF CONTENTS GLOSSARY 1 PRESENTATION OF INFORMATION 6 FORWARD-LOOKING INFORMATION 7 ELECTRICITY INDUSTRY OVERVIEW 11 General Overview 11 Overview of an Electricity System 12 THE ELECTRICITY INDUSTRY IN ONTARIO 13 Regulation of Transmission and Distribution 13 Transmission 15 Distribution 15 Issue

February 14, 2023 EX-99.7

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the “Company”) on Form 40-F for the year ended December 31, 2022 (the “Report”) as filed with the U.S. Securities and Exchange Commission, I, David Lebeter, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as

February 14, 2023 EX-99.8

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.8 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the “Company”) on Form 40-F for the year ended December 31, 2022 (the “Report”) as filed with the U.S. Securities and Exchange Commission, I, Christopher Lopez, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as enacted pu

February 14, 2023 EX-99.4

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

Exhibit 99.4 KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

February 14, 2023 EX-99.2

Year ended December 31 2022 2021 Transmission 52 % 51 % Distribution 48 % 49 % Other — % — %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2022 and 2021 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto of Hydro One Inc. (Hydro One or the Company) for the year ended December 31, 2022 (together,

February 14, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2023 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

February 14, 2023 EX-99.1

Year ended December 31, 2022 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Income Hydro One Shareholder’s Equity Non- controlling Interest (Note 27) Total Equity January 1, 2022 2,957 8,229 (14) 11,172

HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements for the year ended

January 25, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2023 Commission File Number: 001-36115 HYDRO ONE

6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal

January 25, 2023 EX-99.1

Hydro One Inc. Prices Inaugural Offering of $1.05 Billion Medium Term Notes under New Sustainable Financing Framework

EX-99.1 Exhibit 99.1 Hydro One Inc. Prices Inaugural Offering of $1.05 Billion Medium Term Notes under New Sustainable Financing Framework TORONTO, January 24, 2023—Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc. (together with Hydro One Limited, “Hydro One”), has priced an offering of $1.05 bi

January 13, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2023 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

January 13, 2023 EX-99.1

Hydro One Limited becomes first utility in Canada to publish a Sustainable Financing Framework

EX-99.1 2 d396304dex991.htm EX-99.1 Exhibit 99.1 News release Hydro One Limited becomes first utility in Canada to publish a Sustainable Financing Framework TORONTO, January 12, 2023—Hydro One Limited (referred to as “Hydro One” or the “Company”) (TSX: H) today published a Sustainable Financing Framework (“Framework”), a first for a utility in Canada. The Framework allows Hydro One and its subsidi

January 10, 2023 EX-99.2

FORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.2 FORM 51-102F3 MATERIAL CHANGE REPORT Item 1: Name and Address of Company Hydro One Inc. (“Hydro One”) 483 Bay Street, South Tower, 8th Floor Toronto, Ontario M5G 2P5 Item 2: Date of Material Change January 10, 2023 Item 3: News Release A news release announcing the material change referred to in this report was issued through Cision Canada and filed on SEDAR under Hydro One’s profile

January 10, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2023 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: January 2023 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

January 10, 2023 EX-99.1

Hydro One Limited appoints David Lebeter as President and CEO Appointment reinforces commitment to enabling economic growth and a clean energy future for customers and communities across Ontario

Exhibit 99.1 News Release Hydro One Limited appoints David Lebeter as President and CEO Appointment reinforces commitment to enabling economic growth and a clean energy future for customers and communities across Ontario TORONTO, January 10, 2023 – Today, Hydro One Limited’s (Hydro One) Board of Directors announced the appointment of David Lebeter as the company’s new President and CEO. Mr. Lebete

November 30, 2022 EX-99.1

Hydro One’s 2023-2027 Investment Plan to improve service, support economic growth and prepare for climate change approved by the Ontario Energy Board

Exhibit 99.1 Hydro One?s 2023-2027 Investment Plan to improve service, support economic growth and prepare for climate change approved by the Ontario Energy Board TORONTO, November 29, 2022 ? Today, the Ontario Energy Board (OEB) approved the settlement agreement for Hydro One Networks Inc.?s (Hydro One) Joint Rate Application, which includes the 2023-2027 Investment Plan for the company?s transmi

November 30, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2022 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

November 14, 2022 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, William Sheffield, Interim President and Chief Executive Officer, Hydro One Inc.

November 14, 2022 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, Christopher Lopez, Chief Financial Officer, Hydro One Inc.

November 14, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2022 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

November 14, 2022 EX-99.1

Nine months ended September 30, 2022 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Income Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2022 2,957 8,229 (14) 11,172 6

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and nine months ended September 30, 2022 and 2021 Three months ended September 30 Nine months ended September 30 (millions of Canadian dollars, except per share amounts) 2022 2021 2022 2021 Revenues Distribution (includes related party revenues of $72 and $214 (2021 - $71 and $

November 14, 2022 EX-99.2

As at September 30, 2022 December 31, 2021 Transmission 60 % 60 % Distribution 39 % 38 % Other 1 % 2 %

HYDRO ONE INC. MANAGEMENT?S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2022 and 2021 The following Management?s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro On

October 25, 2022 EX-99.1

Hydro One Inc. Prices Offering of $750 Million Medium Term Notes Net proceeds to repay and/or prepay maturing long term and short term debt and for general corporate purposes

EX-99.1 2 d370550dex991.htm EX-99.1 Exhibit 99.1 Hydro One Inc. Prices Offering of $750 Million Medium Term Notes Net proceeds to repay and/or prepay maturing long term and short term debt and for general corporate purposes TORONTO, October 24, 2022 - Hydro One Limited, Ontario’s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One

October 25, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2022 Commission File Number: 001-36115 HYDRO ONE

6-K 1 d370550d6k.htm 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada

October 25, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2022 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: October 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exe

October 25, 2022 EX-99.1

Hydro One files a settlement agreement on its Joint Rate Application with the Ontario Energy Board

Exhibit 99.1 Hydro One files a settlement agreement on its Joint Rate Application with the Ontario Energy Board TORONTO, October 24, 2022 ? Today, Hydro One Networks Inc. (Hydro One) filed a settlement agreement with the Ontario Energy Board (OEB) on its Joint Rate Application, which includes its 2023-2027 Investment Plan for the company?s transmission and distribution systems. The OEB will now re

August 9, 2022 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, Christopher Lopez, Chief Financial Officer, Hydro One Inc.

August 9, 2022 EX-99.2

As at June 30, 2022 December 31, 2021 Transmission 60 % 60 % Distribution 39 % 38 % Other 1 % 2 %

HYDRO ONE INC. MANAGEMENT?S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2022 and 2021 The following Management?s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc.

August 9, 2022 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, William Sheffield, Interim President and Chief Executive Officer, Hydro One Inc.

August 9, 2022 EX-99.1

Six months ended June 30, 2022 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2022 2,957 8,229 (14) 11,172 68 11,240

EX-99.1 2 a2022q2hoifs.htm EX-99.1 HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and six months ended June 30, 2022 and 2021 Three months ended June 30 Six months ended June 30 (millions of Canadian dollars, except per share amounts) 2022 2021 2022 2021 Revenues Distribution (includes related party revenues of $70 and $142

August 9, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2022 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exec

June 22, 2022 EX-99.2

FORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.2 FORM 51-102F3 MATERIAL CHANGE REPORT Item 1: Name and Address of Company Hydro One Inc. (?Hydro One?) 483 Bay Street, South Tower, 8th Floor Toronto, Ontario M5G 2P5 Item 2: Date of Material Change June 21, 2022 Item 3: News Release A news release announcing the material change referred to in this report was issued through Cision Canada and filed on SEDAR under Hydro One?s profile at

June 22, 2022 EX-99.1

Hydro One Limited appoints Bill Sheffield as Interim President and CEO after Mark Poweska accepts new role Appointment ensures continuity as the company continues to deliver on Ontario-focused strategy and starts a thorough CEO selection process

Exhibit 99.1 News Release Hydro One Limited appoints Bill Sheffield as Interim President and CEO after Mark Poweska accepts new role Appointment ensures continuity as the company continues to deliver on Ontario-focused strategy and starts a thorough CEO selection process TORONTO, June 21, 2022?Today Hydro One Limited (Hydro One) announced that Mark Poweska will be stepping down as President and CE

June 22, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2022 Commission File Number: 001-36115 HYDRO ONE IN

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive of

May 5, 2022 EX-99.1

Three months ended March 31, 2022 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2022 2,957 8,229 (14) 11,172 68 11,

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three months ended March 31, 2022 and 2021 Three months ended March 31 (millions of Canadian dollars, except per share amounts) 2022 2021 Revenues Distribution (includes $72 related party revenues; 2021 - $73) (Note 22) 1,517 1,354 Transmission (includes $516 related party revenues;

May 5, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2022 Commission File Number: 001-36115 HYDRO ONE INC

6-K 1 a2022q1hoi6k-fsmda.htm 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Can

May 5, 2022 EX-99.2

As at March 31, 2022 December 31, 2021 Transmission 60 % 60 % Distribution 39 % 38 % Other 1 % 2 %

HYDRO ONE INC. MANAGEMENT?S DISCUSSION AND ANALYSIS For the three months ended March 31, 2022 and 2021 The following Management?s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc. (Hydro

May 5, 2022 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, Christopher Lopez, Chief Financial Officer, Hydro One Inc.

May 5, 2022 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, Mark Poweska, President and Chief Executive Officer, Hydro One Inc.

April 22, 2022 EX-99.1

HYDRO ONE INC. 2021 STATEMENT OF EXECUTIVE COMPENSATION April 22, 2022

EX-99.1 2 d335759dex991.htm EX-99.1 Exhibit 99.1 HYDRO ONE INC. 2021 STATEMENT OF EXECUTIVE COMPENSATION April 22, 2022 I. BACKGROUND In March 2019, Hydro One Inc. was granted exemptive relief (the “Executive Compensation Exemptive Relief”) by securities regulatory authorities in each of the provinces of Canada, exempting Hydro One Inc. from the requirement to provide executive compensation disclo

April 22, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2022 Commission File Number: 001-361

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of princip

April 4, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2022 Commission File Number: 001-36115 HYDRO ONE I

6-K 1 d254164d6k.htm 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address

April 4, 2022 EX-99.1

Hydro One investing in critical infrastructure to energize the southwest Ontario economy Directive from the Government of Ontario will expedite development and construction of transmission infrastructure to support growth Hydro One to develop four tr

Exhibit 99.1 NEWS RELEASE Hydro One investing in critical infrastructure to energize the southwest Ontario economy Directive from the Government of Ontario will expedite development and construction of transmission infrastructure to support growth Hydro One to develop four transmission lines to meet growing electricity demand Windsor, ON, April 4, 2022 ? Today, the Minister of Energy has directed

February 25, 2022 EX-99.5

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.5 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Mark Poweska, President and Chief Executive Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 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

February 25, 2022 EX-99.3

Year ended December 31 2021 2020 Transmission 51 % 51 % Distribution 49 % 49 % Other — % — %

HYDRO ONE INC. MANAGEMENT?S DISCUSSION AND ANALYSIS For the years ended December 31, 2021 and 2020 The following Management?s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto (together the Consolidated Financial Statements) of Hydro One Inc. (Hydro One or the Company

February 25, 2022 EX-99.1

Year ended December 31, 2021 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest (Note 28) Total Equity January 1, 2021 2,957 7,877 (30) 10,804 7

EX-99.1 2 a2021yehoifs.htm EX-99.1 HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Finan

February 25, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2022 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2022 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

February 25, 2022 EX-99.8

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.8 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the ?Company?) on Form 40-F for the year ended December 31, 2021 (the ?Report?) as filed with the U.S. Securities and Exchange Commission, I, Christopher Lopez, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as enacted pu

February 25, 2022 EX-99.2

Year ended December 31, 2021 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest (Note 28) Total Equity January 1, 2021 2,957 7,877 (30) 10,804 7

HYDRO ONE INC. MANAGEMENT?S REPORT The Consolidated Financial Statements, Management?s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements have been prepared

February 25, 2022 EX-99.7

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the ?Company?) on Form 40-F for the year ended December 31, 2021 (the ?Report?) as filed with the U.S. Securities and Exchange Commission, I, Mark Poweska, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as e

February 25, 2022 EX-99.6

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.6 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Christopher Lopez, Chief Financial Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 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

February 25, 2022 EX-99.4

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

Exhibit 99.4 KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (?KPMG International?), a Swiss entity. KPMG Canada provides services to KPMG LLP.

February 25, 2022 EX-99.2

Year ended December 31 2021 2020 Transmission 51 % 51 % Distribution 49 % 49 % Other — % — %

HYDRO ONE INC. MANAGEMENT?S DISCUSSION AND ANALYSIS For the years ended December 31, 2021 and 2020 The following Management?s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto (together the Consolidated Financial Statements) of Hydro One Inc. (Hydro One or the Company

February 25, 2022 EX-99.1

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2021

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2021 February 25, 2022 TABLE OF CONTENTS GLOSSARY 1 PRESENTATION OF INFORMATION 6 FORWARD-LOOKING INFORMATION 7 ELECTRICITY INDUSTRY OVERVIEW 11 General Overview 11 Overview of an Electricity System 12 THE ELECTRICITY INDUSTRY IN ONTARIO 13 Regulation of Transmission and Distribution 13 Transmission 14 Distribution 15 Issue

February 25, 2022 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES 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, 2021 Commission File Number 001-36115 Hydro One Inc. (Exact name of Registrant as specified in its

November 9, 2021 EX-4.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, Christopher Lopez, Chief Financial Officer, Hydro One Inc.

November 9, 2021 EX-1.1

Nine months ended September 30, 2021 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2021 2,957 7,877 (30) 10,804 72

EX-1.1 2 a2021q3hoifs.htm EX-99.1 HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and nine months ended September 30, 2021 and 2020 Three months ended September 30 Nine months ended September 30 (millions of Canadian dollars, except per share amounts) 2021 2020 2021 2020 Revenues Distribution (includes related party revenues

November 9, 2021 EX-2.2

As at September 30, 2021 December 31, 2020 Transmission 59 % 58 % Distribution 38 % 38 % Other 3 % 4 %

HYDRO ONE INC. MANAGEMENT?S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2021 and 2020 The following Management?s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro On

November 9, 2021 EX-3.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

EX-3.3 4 a2021q3hoi-ceocert.htm EX-99.3 FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Mark Poweska, President and Chief Executive Officer, Hydro One Inc., certify the following: 1.Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”) of Hydro One Inc. (the “issuer”) for the interim period ended September 30, 2021. 2.No misrep

November 9, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2021 Commission File Number: 001-36115 HYDRO ON

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: November 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

September 15, 2021 EX-99.1

Hydro One Inc. Prices Offering of $900 Million Medium Term Notes Net proceeds to repay and/or prepay maturing long term and short term debt and for general corporate purposes

Exhibit 99.1 Hydro One Inc. Prices Offering of $900 Million Medium Term Notes Net proceeds to repay and/or prepay maturing long term and short term debt and for general corporate purposes TORONTO, September 14, 2021?Hydro One Limited, Ontario?s largest electricity transmission and distribution company, today announced that its wholly-owned subsidiary, Hydro One Inc., has priced an offering of $900

September 15, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2021 Commission File Number: 001-36115 HYDRO O

6-K 1 d233184d6k.htm 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: September 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant’s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Add

August 10, 2021 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

EX-99.4 5 a2021q2hoi-cfocert.htm EX-99.4 FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Christopher Lopez, Chief Financial Officer, Hydro One Inc., certify the following: 1.Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”) of Hydro One Inc. (the “issuer”) for the interim period ended June 30, 2021. 2.No misrepresentations:

August 10, 2021 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, Mark Poweska, President and Chief Executive Officer, Hydro One Inc.

August 10, 2021 EX-99.1

Six months ended June 30, 2021 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2021 2,957 7,877 (30) 10,804 72 10,876

EX-99.1 2 a2021q2hoifs.htm EX-99.1 HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and six months ended June 30, 2021 and 2020 Three months ended June 30 Six months ended June 30 (millions of Canadian dollars, except per share amounts) 2021 2020 2021 2020 Revenues Distribution (includes related party revenues of $70 and $143

August 10, 2021 EX-99.2

As at June 30, 2021 December 31, 2020 Transmission 60 % 58 % Distribution 39 % 38 % Other 1 % 4 %

EX-99.2 3 a2021q2hoimda.htm EX-99.2 HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2021 and 2020 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Fin

August 10, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal exec

August 5, 2021 EX-99.1

Hydro One submits five-year Investment Plan to the Ontario Energy Board to energize life for communities The plan will reduce the impacts of power outages for its distribution customers by approximately 25 per cent

Exhibit 99.1 News Release Hydro One submits five-year Investment Plan to the Ontario Energy Board to energize life for communities The plan will reduce the impacts of power outages for its distribution customers by approximately 25 per cent TORONTO, August 5, 2021 – Today, Hydro One Networks Inc. (Hydro One) filed its Joint Rate Application with the Ontario Energy Board (OEB), which includes its 2

August 5, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive

August 5, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive

August 5, 2021 EX-99.1

Hydro One submits five-year Investment Plan to the Ontario Energy Board to energize life for communities The plan will reduce the impacts of power outages for its distribution customers by approximately 25 per cent

EX-99.1 2 d190147dex991.htm EX-99.1 Exhibit 99.1 News Release Hydro One submits five-year Investment Plan to the Ontario Energy Board to energize life for communities The plan will reduce the impacts of power outages for its distribution customers by approximately 25 per cent TORONTO, August 5, 2021 – Today, Hydro One Networks Inc. (Hydro One) filed its Joint Rate Application with the Ontario Ener

August 4, 2021 EX-99.1

Members of the Society of United Professionals ratify two-year collective agreement with Hydro One

Exhibit 99.1 News Release Members of the Society of United Professionals ratify two-year collective agreement with Hydro One TORONTO, August 3, 2021 - Hydro One Inc. (Hydro One) and the Society of United Professionals (the Society) are pleased to announce that Society-represented Hydro One employees voted in favour of renewing their two-year collective agreement. ?I want to extend my thanks to the

August 4, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: August 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive

July 28, 2021 EX-99.1

Hydro One announces sustainability commitments and path to net-zero greenhouse gas emissions by 2050 and a 30 per cent reduction by 2030

EX-99.1 2 d206056dex991.htm EX-99.1 Exhibit 99.1 Hydro One announces sustainability commitments and path to net-zero greenhouse gas emissions by 2050 and a 30 per cent reduction by 2030 TORONTO, July 28, 2021 – Today, Hydro One announced its plans to achieve net-zero greenhouse gas (GHG) emissions by 2050, with a target to achieve a 30 per cent GHG emissions reduction by 2030. Hydro One also annou

July 28, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: July 2021 Commission File Number: 001-36115 HYDRO ONE IN

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: July 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive of

June 28, 2021 EX-99.1

Hydro One making smart investments to improve power reliability for customers Since installing smart devices in communities across the province, 20 million customer minutes of power interruptions have been avoided A Hydro One employee installs a smar

EX-99.1 2 d161009dex991.htm EX-99.1 Exhibit 99.1 Hydro One making smart investments to improve power reliability for customers Since installing smart devices in communities across the province, 20 million customer minutes of power interruptions have been avoided A Hydro One employee installs a smart switch. Since 2018, Hydro One has added more than 2,300 smart devices to its system. TORONTO, June

June 28, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2021 Commission File Number: 001-36115 HYDRO ONE IN

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive of

June 28, 2021 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2021 Commission File Number: 001-36115 HYDRO ONE IN

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: June 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive of

June 28, 2021 EX-99.1

Hydro One and the Society of United Professionals reach tentative settlement

EX-99.1 2 d196369dex991.htm EX-99.1 Exhibit 99.1 news release Hydro One and the Society of United Professionals reach tentative settlement Toronto, June 28, 2021 – Hydro One Inc. (Hydro One) and the Society of United Professionals (the Society) are pleased to announce a tentative settlement of a 2-year collective agreement covering approximately 1,800 employees in critical engineering, supervisory

May 7, 2021 6-K

Current Report of Foreign Issuer - 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: May 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executi

May 7, 2021 EX-99.2

As at March 31, 2021 December 31, 2020 Transmission 59 % 58 % Distribution 39 % 38 % Other 2 % 4 %

EX-99.2 3 a2021q1hoimda.htm EX-99.2 HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2021 and 2020 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the unaudited condensed interim consolidated financial statements and accompanying notes thereto (Consolidated Financial

May 7, 2021 EX-99.1

Three months ended March 31, 2021 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2021 2,957 7,877 (30) 10,804 72 10,

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three months ended March 31, 2021 and 2020 Three months ended March 31 (millions of Canadian dollars, except per share amounts) 2021 2020 Revenues Distribution (includes $73 related party revenues; 2020 - $70) (Note 24) 1,354 1,439 Transmission (includes $443 related party revenues;

May 7, 2021 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS ? FULL CERTIFICATE I, Christopher Lopez, Chief Financial Officer, Hydro One Inc.

May 7, 2021 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

EX-99.3 4 a2021q1hoi-ceocert.htm EX-99.3 FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Mark Poweska, President and Chief Executive Officer, Hydro One Inc., certify the following: 1.Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”) of Hydro One Inc. (the “issuer”) for the interim period ended March 31, 2021. 2.No misrepres

April 14, 2021 EX-99.1

HYDRO ONE INC. 2020 STATEMENT OF EXECUTIVE COMPENSATION April 13, 2021

EX-99.1 2 d129311dex991.htm EX-99.1 Exhibit 99.1 HYDRO ONE INC. 2020 STATEMENT OF EXECUTIVE COMPENSATION April 13, 2021 I. BACKGROUND In March 2019, Hydro One Inc. was granted exemptive relief (the “Executive Compensation Exemptive Relief”) by securities regulatory authorities in each of the provinces of Canada, exempting Hydro One Inc. from the requirement to provide executive compensation disclo

April 14, 2021 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of princip

April 9, 2021 6-K

Current Report of Foreign Issuer - 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: April 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive o

April 9, 2021 EX-99.1

Hydro One receives regulatory decision regarding the implementation of the deferred tax asset

EX-99.1 2 d152748dex991.htm EX-99.1 Exhibit 99.1 Hydro One receives regulatory decision regarding the implementation of the deferred tax asset TORONTO, April 8, 2021 – Today, Hydro One Networks Inc. (Hydro One) received a decision from the Ontario Energy Board (OEB) regarding the implementation of the deferred tax asset. Please see the OEB’s website for a copy of the decision. Hydro One is reviewi

March 29, 2021 6-K

Current Report of Foreign Issuer - 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: March 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal executive o

March 29, 2021 EX-99.1

New Electricity Transmission Line to Support Economic Growth in Southwest Ontario

EX-99.1 2 d101821dex991.htm EX-99.1 Exhibit 99.1 New Electricity Transmission Line to Support Economic Growth in Southwest Ontario The Independent Electricity System Operator (IESO) requests Hydro One develop new line between Chatham and Lambton TORONTO, March 29, 2021– A new transmission line between Hydro One’s Lambton transformer station and its Chatham switching station would provide electrici

February 25, 2021 EX-99.8

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EX-99.8 9 a2020hoi-cfocerts906ex998.htm EX-99.8 Exhibit 99.8 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the “Company”) on Form 40-F for the year ended December 31, 2020 (the “Report”) as filed with the U.S. Securities and Exchange Commission, I, Christopher Lopez, Chief Financial Officer of the Company, certify, p

February 25, 2021 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES 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 Commission File Number 001-36115 Hydro One Inc. (Exact name of Registrant as specified in its

February 25, 2021 EX-99.1

ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2020 February 25, 2021 TABLE OF CONTENTS

EX-99.1 2 a2020hoiaif.htm EX-99.1 ANNUAL INFORMATION FORM FOR HYDRO ONE INC. FOR THE YEAR ENDED DECEMBER 31, 2020 February 25, 2021 TABLE OF CONTENTS GLOSSARY 1 PRESENTATION OF INFORMATION 6 FORWARD-LOOKING INFORMATION 7 ELECTRICITY INDUSTRY OVERVIEW 11 General Overview 11 Overview of an Electricity System 11 THE ELECTRICITY INDUSTRY IN ONTARIO 12 Regulation of Transmission and Distribution 12 Tra

February 25, 2021 EX-99.6

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EX-99.6 7 a2020hoi-cfocerts302ex996.htm EX-99.6 Exhibit 99.6 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Christopher Lopez, Chief Financial Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material

February 25, 2021 EX-99.4

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

Exhibit 99.4 KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (?KPMG International?), a Swiss entity. KPMG Canada provides services to KPMG LLP.

February 25, 2021 EX-99.2

Year ended December 31, 2020 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest (Note 28) Total Equity January 1, 2020 3,564 6,086 (6) 9,644 59

HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Financial Statements have been prepared

February 25, 2021 EX-99.7

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Hydro One Inc. (the ?Company?) on Form 40-F for the year ended December 31, 2020 (the ?Report?) as filed with the U.S. Securities and Exchange Commission, I, Mark Poweska, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as e

February 25, 2021 EX-99.3

Year ended December 31 2020 2019 Transmission 51 % 50 % Distribution 49 % 50 % Other — % — %

EX-99.3 4 a2020yehoimda.htm EX-99.3 HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2020 and 2019 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc. (H

February 25, 2021 EX-99.5

CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EX-99.5 6 a2020hoi-ceocerts302ex995.htm EX-99.5 Exhibit 99.5 CERTIFICATION Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Mark Poweska, President and Chief Executive Officer, Hydro One Inc., certify that: 1.I have reviewed this annual report on Form 40-F of Hydro One Inc.; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a

February 24, 2021 EX-99.1

Year ended December 31, 2020 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest (Note 28) Total Equity January 1, 2020 3,564 6,086 (6) 9,644 59

EX-99.1 2 a2020yehoifs.htm EX-99.1 HYDRO ONE INC. MANAGEMENT’S REPORT The Consolidated Financial Statements, Management’s Discussion and Analysis (MD&A) and related financial information have been prepared by the management of Hydro One Inc. (Hydro One or the Company). Management is responsible for the integrity, consistency and reliability of all such information presented. The Consolidated Finan

February 24, 2021 6-K

Current Report of Foreign Issuer - 6-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of: February 2021 Commission File Number: 001-36115 HYDRO ONE INC. (Translation of Registrant?s name into English) 483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada (Address of principal ex

February 24, 2021 EX-99.2

Year ended December 31 2020 2019 Transmission 51 % 50 % Distribution 49 % 50 % Other — % — %

EX-99.2 3 a2020yehoimda.htm EX-99.2 HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the years ended December 31, 2020 and 2019 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro One Inc. (H

November 6, 2020 EX-99.1

Nine months ended September 30, 2020 (millions of Canadian dollars) Common Shares Retained Earnings Accumulated Other Comprehensive Loss Hydro One Shareholder’s Equity Non- controlling Interest Total Equity January 1, 2020 3,564 6,086 (6) 9,644 59 9,

HYDRO ONE INC. CONDENSED INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) For the three and nine months ended September 30, 2020 and 2019 Three months ended September 30 Nine months ended September 30 (millions of Canadian dollars, except per share amounts) 2020 2019 2020 2019 Revenues Distribution (includes related party revenues of $70 and $212 (2019 - $70 and $

November 6, 2020 EX-99.2

Nine months ended September 30 2020 2019 Transmission 52 % 49 % Distribution 48 % 51 % Other — % — %

HYDRO ONE INC. MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2020 and 2019 The following Management’s Discussion and Analysis (MD&A) of the financial condition and results of operations should be read together with the condensed interim unaudited consolidated financial statements and accompanying notes thereto (Consolidated Financial Statements) of Hydro On

November 6, 2020 EX-99.3

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Mark Poweska, President and Chief Executive Officer, Hydro One Inc.

November 6, 2020 EX-99.4

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE

FORM 52-109F2 CERTIFICATION OF INTERIM FILINGS – FULL CERTIFICATE I, Christopher Lopez, Chief Financial Officer, Hydro One Inc.

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