The Ontario Pumped Storage Project, a joint initiative between TC Energy (TCE) and the Saugeen Ojibway Nation, has made significant progress, with the Ontario government advancing the pre-development phase of the Meaford facility.

Set to become the largest pumped storage project in Canada, the proposed facility is expected to offer up to 1,000 megawatts of electricity storage capacity—enough to supply power to one million homes for as long as 11 hours. According to project details, the system will function by utilizing water from Georgian Bay, which will be pumped to a high-level reservoir during periods of low electricity demand. When demand rises, the stored water will be released back into the bay to generate electricity, effectively transforming the natural environment into a giant battery that relies on water and gravity.

The Ontario government has committed up to $285 million to support the early stages of the project, which includes conducting detailed cost estimates and completing necessary environmental assessments. A final decision on moving forward with the project will be made once these critical assessments are finalized.

In terms of economic impact, the Canadian Centre for Economic Analysis forecasts that the Medford pumped storage facility could contribute $6.2 billion to Ontario’s GDP over its 50-year lifespan, encompassing design, construction, and operational phases. Additionally, the project is expected to generate over 1,700 construction jobs over a span of four years.

If the project is approved and constructed, the Saugeen Ojibway Nation will also have the opportunity to form an equity partnership with TC Energy, further cementing their involvement in the project.