New Etobicoke Transmission Line to Power 300,000 GTA Homes After Finishing $10 Million Under Budget
Etobicoke Greenway Transmission Line Strengthens the Western GTA Grid
ETOBICOKE, Ont. — A new high-voltage transmission line capable of supplying electricity to approximately 300,000 homes has entered service in the western Greater Toronto Area after being completed on schedule and $10 million under budget.
The Ontario government marked the completion of the Etobicoke Greenway project on July 28, describing it as a major expansion of the electricity system serving western Toronto, southern Mississauga and Oakville.
The 230-kilovolt line extends 6.5 kilometres through an existing transmission corridor between Hydro One’s Richview and Manby transformer stations in Etobicoke. It can deliver up to 300 megawatts of additional electricity.
Construction supported approximately 100 jobs. The government said the $10 million saved during delivery will be directed toward a recreational trail beside the transmission corridor.
Why the Etobicoke Greenway Matters
The project arrives as Toronto prepares for electricity demand that is forecast to double by 2050.
Population growth, housing development, transit expansion, business investment and the broader electrification of transportation and buildings are expected to place increasing pressure on the city’s electricity network.
The Etobicoke Greenway strengthens the system serving the western GTA while using an existing transmission corridor, limiting the need for a new route through nearby communities.
Premier Doug Ford said the project will provide more reliable electricity for housing, public transit and businesses.
“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,” Ford said.
Project Completed On Time and Under Budget
Hydro One replaced an idle transmission line and upgraded infrastructure at the Richview and Manby transformer stations to increase the corridor’s capacity.
The Ontario Energy Association attended this morning’s announcement by Ontario Minister of Energy and Mines Stephen Lecce: “Ontario Government Delivers New GTA Transmission Line On Time and Under Budget”
Minister Lecce delivered remarks alongside Parliamentary Assistant David… pic.twitter.com/piZHKjZkkx
— Ontario Energy Association (OEA) (@energyontario) July 28, 2026
The province said approximately 98 per cent of the materials used for the project were procured from Canadian companies.
Construction was completed in late 2025, and the transmission line began delivering electricity to surrounding communities in March 2026.
Energy and Mines Minister Stephen Lecce said completing the project $10 million under budget allowed the province and Hydro One to redirect the savings toward a community trail.
“Ontario has a plan to keep energy affordable and reliable, by planning ahead and building on time and under budget,” Lecce said.
Electricity Infrastructure Tied to Housing and Transit Growth
The need for the line was identified in the Independent Electricity System Operator’s 2019 Toronto Integrated Regional Resource Plan.
That planning process identified the Richview-to-Manby corridor as a priority for improving reliability and increasing the supply of electricity entering western Toronto.
Toronto Mayor Olivia Chow said the city’s growth plans depend on a resilient electricity system.
“Toronto’s growing population, expanding transit network and ambitious housing goals depend on a reliable and resilient electricity system,” Chow said.
She said the Etobicoke Greenway will help meet present demand while future projects prepare Toronto for longer-term growth.
Toronto Third Line Planned for Downtown Core
Ontario is also advancing the Toronto Third Line, a proposed transmission project intended to deliver up to 900 megawatts of electricity into downtown Toronto.
The province says that project will help support new housing, business growth, transit infrastructure and the continued electrification of the city.
The Etobicoke Greenway and Toronto Third Line form part of Ontario’s integrated energy plan, Energy for Generations, which outlines investments intended to expand electricity generation and transmission capacity.
Hydro One President and CEO Megan Telford said the new Etobicoke line demonstrates the utility’s ability to deliver complex infrastructure safely and below budget.
“The Etobicoke Greenway transmission line adds critical capacity for Toronto and the western GTA,” Telford said.
Independent Electricity System Operator President and CEO Lesley Gallinger said new transmission infrastructure will be necessary as more residents and businesses connect to Ontario’s electricity system.
With the Etobicoke Greenway now operating, the western GTA has gained a significant new source of transmission capacity as governments prepare for continued housing, population and economic growth.
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