Mr. Omar Javed reports

HYDRO ONE TO RELEASE FIRST QUARTER 2024 RESULTS ON MAY 14, 2024 BEFORE MARKETS OPEN

Hydro One Ltd. plans to release its first quarter financial results the morning of May 14, 2024, before North American financial markets open. A summary of the results will be distributed and the complete MD&A (management's discussion and analysis) and financial statements will be posted on the company's website and on SEDAR+.

Hydro One's management will host a teleconference with the investment community, starting at 8 a.m. ET on the same morning, to discuss the results and outlook. Those wishing to listen to the teleconference can access the live webcast through the investor relations events and presentations section of Hydro One's website. A rebroadcast of the teleconference will be available following the call.

Members of the North American financial community wanting to ask questions during the call should register on-line and will be provided with personalized dial-in details. To avoid delays, the company encourages participants to dial into the conference call 15 minutes ahead of the scheduled start time. Other interested parties and media are welcome to participate on a listen-only basis.

About Hydro One Ltd.

Hydro One, through its wholly owned subsidiaries, is Ontario's largest electricity transmission and distribution provider with approximately 1.5 million valued customers, approximately $32.8-billion in assets as at Dec. 31, 2023, and annual revenues in 2023 of approximately $7.8-billion.

Hydro One's team of approximately 9,700 skilled and dedicated employees proudly builds and maintains a safe and reliable electricity system, which is essential to supporting strong and successful communities. In 2023, Hydro One invested approximately $2.5-billion in its transmission and distribution networks, and supported the economy through buying approximately $2.5-billion of goods and services.

The company is committed to the communities where people live and work through community investment, sustainability and diversity initiatives.

Hydro One's common shares are listed on the Toronto Stock Exchange and certain of Hydro One's medium-term notes are listed on the New York Stock Exchange.