Riverside Generating Station
Project Overview
Atura Power, a subsidiary of Ontario Power Generation (OPG), is proposing to construct the Riverside Generating Station, a new natural gas-fueled electricity generating station in Lambton County, Ont. The site for the proposed Riverside Generating Station is located on the lands of the former OPG-owned and operated Lambton Generating Station along the St. Clair Parkway, between Courtright Line and Oil Springs Line in St. Clair Township. Once constructed, the proposed Riverside Generating Station will be able to generate up to 500 megawatts (MW) of reliable electricity to Ontario's grid.
Learn more about gas-fueled electricity generation and the important role it plays in Ontario’s electricity system at Atura Power.
Responding to Ontario’s growing electricity demand
Ontario is entering an accelerated pace of electricity demand growth primarily driven by industrial growth, energy-intensive data centres, and increasing population and electrification.
According to the latest annual forecast from the Independent Electricity System Operator (IESO), electricity demand in Ontario is anticipated to grow 75 per cent by 2050.
To prepare for future electricity demands and support a reliable grid for Ontarians, the IESO has initiated a Long-Term 2 Request for Proposals (LT2 RFP) to secure new electricity resources that could be in service into the 2030s and beyond.
The proposed Riverside Generating Station will increase Ontario’s supply of reliable power, producing electricity when it is needed most. The (up to) 500 MW simple cycle gas turbine facility will help stabilize a growing grid while enabling more renewable investments longer term.
Project Details
| Project Name: | Riverside Generating Station Project |
|---|---|
| Proponent: | Portlands Energy Centre L.P. (doing business as Atura Power) |
| Location: | St. Clair Township, Ont. |
| Generating Technology: | Natural Gas-Fueled Electricity Generating Station |
| Maximum Potential Contract Capacity: | Up to 500 MW |
Committed to Engagement
Atura Power is committed to engaging with Indigenous communities, municipalities, the public, regulatory agencies, as well as other interested stakeholders throughout the LT2 process and beyond.
We invite you to attend a public meeting to learn more about the proposed Riverside Generating Station project.
| Riverside Generating Station Public Meeting | |
|---|---|
| Date: | Thursday, June 19, 2025 |
| Time: | 3 – 7 p.m. EDT |
| Location: | St. Clair Parkway Golf Course, Cedar Lounge 132 Moore Line, Mooretown, Ont. N0N 1M0 |
Please access the Contact Us form if you have any questions or accommodation needs. Meeting materials will be available on this webpage following the meeting.
Understanding the Process
Atura Power is proposing Riverside Generating Station through the IESO LT2 procurement process. Proposals for projects in the ‘capacity’ stream are due to the IESO in December 2025.
If awarded an LT2 contract by the IESO, Atura Power will complete an environmental assessment and obtain the necessary permits and approvals prior to construction. Engagement with Indigenous communities, local community members and other interested parties will continue through each phase of the project and beyond.
Timeline
Atura Power’s preliminary timeline for the proposed project is as follows:
Project Documents
Project documents will be posted as they become available. Please let us know if you require an alternate format for any documents posted through the Contact Us form below.
Comments and information regarding this project are being collected in accordance with the Freedom of Information and Protection of Privacy Act. With the exception of personal information, all comments received will become part of the project record.
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