Ontario Power Generation secured an agreement Thursday to build what officials describe as a potential pathway to the world’s largest nuclear generating station, anchoring a massive expansion of the province’s atomic energy capacity.
The Wesleyville site project would deliver 10,000 megawatts of electricity — enough to power 10 million homes — while creating 1,700 local jobs and more than 10,000 positions across Ontario, Energy Minister Stephen Lecce said. OPG’s project documentation, submitted January 12 to the Impact Assessment Agency of Canada, outlines the massive undertaking.
Ontario is doubling down on Canadian workers by signing an agreement that advances the world’s largest nuclear station with @OPG in Port Hope.
— Zee Hamid (@zeeinmilton) February 12, 2026
This site alone could power 10 million homes and support 10,500 good-paying jobs across Ontario, built by and for Canadians.… pic.twitter.com/dfT1H9GP7D
Site preparation will begin in 2030, with construction launching in 2033 and the first reactor entering service in 2040.
The deal follows consultation with the Williams Treaties First Nations, whose traditional territory encompasses the site. Port Hope Mayor Olena Hankivsky called the agreement a foundation for decades of economic growth.
Ontario has already committed $12.8 billion to refurbish the nearby Darlington Nuclear Generating Station and launched construction of four small modular reactors there. The province is also exploring large-scale expansion at the Bruce Power facility in Tiverton.
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