New 230-kilovolt transmission project delivered on time and $10 million under budget will power up to 300,000 homes
ETOBICOKE, Ont. — The Ontario government has completed the Etobicoke Greenway Transmission Line, a key electricity infrastructure project designed to strengthen the Greater Toronto Area’s power grid while supporting future housing, business growth and transit expansion. Provincial officials say the project was delivered on time and $10 million under budget, with the savings earmarked for a new recreational trail alongside the transmission corridor.
The new 230-kilovolt transmission line stretches 6.5 kilometres through an existing utility corridor between the Richview and Manby Transformer Stations in Etobicoke. The line is capable of delivering up to 300 megawatts of electricity, enough to supply approximately 300,000 homes across western Toronto, southern Mississauga and Oakville.
Construction of the project supported approximately 100 jobs, while Hydro One sourced about 98 per cent of the required materials from Canadian companies, reinforcing the province’s focus on domestic supply chains.
Province targets rising electricity demand
Ontario says the new transmission line forms part of its broader strategy to expand electricity infrastructure as demand across the Greater Toronto Area continues to grow. Population increases, housing development, electrification and economic expansion are expected to drive Toronto’s electricity demand to double by 2050.
Premier Doug Ford said the project represents another investment in infrastructure needed to support Ontario’s long-term growth.
“Ontario is growing and our government is making the investments needed to power that growth,” said Premier Doug Ford and MPP for Etobicoke North. “Bringing the Etobicoke Greenway project into service means more reliable electricity for new homes, businesses and public transit, and more good-paying jobs across Etobicoke and the province.”
The transmission line was first identified as a priority project in the Independent Electricity System Operator’s (IESO) 2019 Toronto Integrated Regional Resource Plan, which highlighted the need to improve electricity reliability and increase supply into western Toronto.
Savings to fund recreational trail
Minister of Energy and Mines Stephen Lecce said completing the project below budget allowed the province to redirect savings toward community infrastructure.
“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.”
Hydro One completed the project by replacing an idle transmission line and upgrading both the Richview and Manby Transformer Stations, increasing capacity while using existing infrastructure to reduce impacts on surrounding neighbourhoods. Construction concluded in late 2025, with the line entering service in March 2026.
Toronto prepares for future electricity needs
The provincial government is also advancing the proposed Toronto Third Line (TTL), another major transmission project expected to provide up to 900 megawatts of additional electricity to Toronto’s downtown core. Officials say the project will help accommodate continued residential development, commercial investment and major transit expansion.
Toronto Mayor Olivia Chow welcomed the completion of the Etobicoke Greenway project, describing it as an important step toward meeting the city’s future energy needs.
“Toronto’s growing population, expanding transit network and ambitious housing goals depend on a reliable and resilient electricity system,” said Olivia Chow, Mayor 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.”
Industry groups back transmission investments
Business and energy organizations highlight economic benefits
Several energy, business and development organizations welcomed the completion of the project, describing expanded transmission capacity as essential to Ontario’s long-term economic competitiveness.
Hydro One President and CEO Megan Telford said the project demonstrates the utility’s ability to deliver major infrastructure efficiently.
“Reliable and secure electricity powers every part of our daily lives and underpins Ontario’s economic future. 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.”
Lesley Gallinger, President and CEO of the Independent Electricity System Operator, said new transmission infrastructure is increasingly important as electricity demand rises.
“With Ontario’s population increasing and more businesses looking to connect to Ontario’s electricity system, new transmission infrastructure is critical to supporting continued growth and economic development. The completion of this line is a significant step towards ensuring we are prepared to meet rapidly increasing demand for electricity, particularly in the GTA.”
Additional endorsements came from the Ontario Energy Association, Ontario Chamber of Commerce, Association of Power Producers of Ontario (APPrO), Toronto Region Board of Trade, Economic Developers Council of Ontario, Ontario Business Improvement Area Association and the Ontario Home Builders’ Association. Each organization said investments in modern transmission infrastructure are critical to supporting housing construction, industrial expansion, business investment and long-term economic growth across the Greater Toronto Area.
The Etobicoke Greenway Transmission Line forms part of Ontario’s broader Energy for Generations strategy, an integrated provincial plan aimed at ensuring reliable, affordable electricity while supporting future economic development and infrastructure expansion across the province.