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The new Etobicoke Greenway transmission line adds capacity and strengthens system reliability in Toronto and the western GTA

TORONTO, July 28, 2026 – Today, Hydro One announced that its Etobicoke Greenway transmission line is now in service. The new six-kilometre, 230-kilovolt transmission line between Richview Transformer Station (TS) and Manby TS in Etobicoke has added approximately 300 megawatts of capacity to the region, enough to power all the homes in Etobicoke, twice. This additional capacity will help meet growing electricity demand and strengthen power reliability across Toronto and the western Greater Toronto Area.

Completed on time and under budget, the transmission line project drew on Hydro One's skilled workforce and supported approximately 100 external jobs during construction. Contractors provided specialized expertise, including equipment operation, site preparation and restoration, and traffic and waste management.

“Reliable and secure electricity powers every part of our daily lives and underpins Ontario's economic future,” said Megan Telford, President and CEO, Hydro One. “Today's milestone shows what is possible when a clear vision for growth is matched with strong delivery. The Etobicoke Greenway transmission line adds critical capacity for Toronto and the western GTA while demonstrating Hydro One's continued ability to deliver complex infrastructure safely, on time and below budget. As Ontario's trusted developer and operator of transmission lines, we play a key role in building an electricity system that supports growth, creates jobs and keeps the province competitive for decades to come.”

As a part of the broader project, Hydro One continues to work with the City of Toronto to build a recreational trail along the transmission corridor. Hydro One plans to host an open house in Etobicoke later this year, to share project details and gather community input on the design. The trail is expected to be completed by early 2027.

For more information about the project, visit HydroOne.com/EtobicokeGreenway.

Quotes

 “As the GTA experiences unprecedented growth, our government is building a stronger economy and grid for our kids,” said Stephen Lecce, Minister of Energy and Mines. “Ontario has a plan to keep energy affordable and reliable, by planning ahead and building on time and under budget.  This project was delivered 10 million under budget, allowing us to invest the savings in a large recreational trail system for local families. As we face ongoing threats from the U.S., our government is fortifying the economy by building made-in-Canada transmission lines and nuclear power. As we deliver the largest electricity buildout in a generation, our government will continue to keep costs down for families through the largest Energy Savings Program in Ontario history and the 10-cent reduction to the gas tax." 

"Toronto's growing population, expanding transit network and ambitious housing goals depend on a reliable and resilient electricity system,” said Mayor Olivia Chow, City of Toronto. “The completion of the Etobicoke Greenway project is an important step in meeting the energy needs of our city today, while projects like the Toronto Third Line will help prepare us for the future. I welcome this investment in critical infrastructure that supports housing, economic development and a stronger, more sustainable city."

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Hydro One Limited (TSX: H)

Hydro One Limited, through its wholly-owned subsidiaries, is Ontario's largest electricity transmission and distribution provider with 1.5 million valued customers, $39.7 billion in assets as at December 31, 2025, and annual revenues in 2025 of $9 billion.

Our team of 9,600 skilled and dedicated employees proudly build and maintain a safe and reliable electricity system which is essential to supporting strong and successful communities. In 2025, Hydro One invested $3.4 billion in its transmission and distribution networks, and supported the economy through buying $3.0 billion of goods and services.

We are committed to the communities where we live and work through community investment, sustainability and diversity initiatives.  

Hydro One Limited's common shares are listed on the TSX and certain of Hydro One Inc.'s medium term notes are listed on the NYSE. Additional information can be accessed at www.hydroone.com/, www.sedarplus.com or www.sec.gov.

For More Information

For more information about everything Hydro One, please visit www.hydroone.com where you can find additional information including links to securities filings, historical financial reports, and information about the Company's governance practices, corporate social responsibility, customer solutions and further information about its business.

Forward-looking statements and information:

This press release may contain "forward-looking information" within the meaning of applicable Canadian securities laws and "forward-looking statements" within the meaning of applicable U.S. securities laws (collectively, "forward-looking information"). Statements containing forward-looking information are made pursuant to the "safe harbour" provisions of applicable Canadian and U.S. securities laws. Words such as "expect", "anticipate", "intend", "attempt", "may", "plan", "will", "can", "believe", "seek", "estimate", and variations of such words and similar expressions are intended to identify such forward-looking information. These statements are not guarantees of future performance or actions and involve assumptions and risks and uncertainties that are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed, implied or forecasted in such forward-looking information. Some of the factors that could cause actual results or outcomes to differ materially from the results expressed, implied or forecasted by such forward-looking information, including some of the assumptions used in making such statements, are discussed more fully in Hydro One's filings with the securities regulatory authorities in Canada, which are available on SEDAR+ at www.sedarplus.com. Hydro One does not intend, and it disclaims any obligation, to update any forward-looking information, except as required by law.