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April 28, 2026
8 min read

Get the facts on OPG’s proposed Wesleyville nuclear project in Port Hope

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At a glance

  • OPG is inviting members of the public to learn more about its proposed Wesleyville large nuclear project at upcoming in-person and virtual info sessions.
  • The project is currently going through a multi-phased impact assessment.
  • OPG’s Wesleyville site in Port Hope could host up to 10,000 MW of safe, reliable nuclear generation for Ontario’s future and provide billions in economic benefits.
Wesleyville site near Port Hope
A view of OPG's Wesleyville site in Port Hope.

Want to learn more about OPG’s proposed Wesleyville large nuclear project in Port Hope? Now’s your chance to get your questions answered.

OPG will be holding project information sessions in-person in Port Hope and Cobourg on May 6 and 7, and virtually on May 20. Members of the community are invited to learn more about the proposed new development, its potential economic benefits, and how to get involved in the project’s impact assessment process.

Learn more and register for the sessions

The 1,300-acre Wesleyville site, which was originally set to host an oil-fired station in the 1970s, could host up to 10,000 megawatts of safe, reliable, and low-carbon new nuclear generation, enough to power about 10 million homes and support the province’s growth and electrification.

An icon representing "Power".

The proposed Wesleyville project could deliver billions in economic benefits to Ontario and Canada, including 1,700 jobs in Port Hope.

OPG continues to work closely with the Michi Saagiig Anishnaabeg Nations of the Williams Treaties First Nations and the Municipality of Port Hope to ensure meaningful engagement and collaboration.

Community members attend a consultation session with OPG staff about new nuclear generation in Port Hope.
Community members attend a consultation session with OPG staff about new nuclear generation in Port Hope.

In recent months, the project achieved several important milestones.

In January, OPG submitted the Initial Project Description for the project to the Impact Assessment Agency of Canada (IAAC). This was the first regulatory step to advance the project through the necessary, multi-phased impact assessment, which will look at its potential impacts and explore how adverse effects could be mitigated.

It also provides an opportunity for Indigenous Nations, the Municipality, stakeholders, and the public to share their perspectives and views.

And in March, OPG and the Municipality of Port Hope signed a Memorandum of Understanding (MOU) to advance collaboration on the project.

Through the agreement, OPG and Port Hope will work together to advance the impact assessment process, as well as progress planning, community engagement, and economic growth. The MOU also includes an additional $4.5 million in growth readiness funding to Port Hope to support the community’s preparation and exploration of nuclear power.

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