Ontario Breaks Ground on Canada’s Largest Battery Storage Project

by ahnationtalk on November 12, 20256 Views

November 12, 2025

Skyview 2 storage facility will have enough capacity to power nearly 400,000 homes

EDWARDSBURGH CARDINAL — Construction is now underway on the single largest battery storage facility ever procured in Canadian history, supporting the Ontario government’s plan to deliver reliable, affordable and clean energy to power the province’s growing economy and communities. Once complete, the new Skyview 2 Battery Energy Storage System will provide enough capacity to power nearly 400,000 homes, strengthening the province’s electricity grid and protecting Ontario workers and jobs by supporting a more competitive, resilient and self-reliant provincial economy.

“As part of our plan to protect Ontario, we’re making record investments in energy generation, transmission and storage to make our province an energy superpower,” said Premier Doug Ford. “Skyview 2 is an important part of that plan and will be a game-changer for Leeds and Grenville’s economy, as well as our First Nations partners. It will help to deliver the reliable, clean and affordable energy needed to power our growing communities and economy for generations to come.”

With electricity demand in Ontario forecasted to increase significantly by 2050, Skyview 2 marks an important milestone in Ontario’s clean energy transition and will play a vital role in supporting the province’s clean electricity grid. Once operational in 2027, the facility will store electricity from Ontario’s clean electricity grid during periods of low demand and return that stored power to the system when demand is higher, while creating up to 300 jobs during construction and additional operational positions following completion.

“Ontario is building big and for future generations as we lead the largest nuclear and energy storage expansion in Canadian history,” said Stephen Lecce, Minister of Energy and Mines. “With shovels in the ground on Canada’s largest battery storage facility, our government is proud to support Canadian workers, Indigenous communities and affordability for all Ontarians.”

The Skyview 2 project is a lithium-ion battery energy storage facility procured through the Independent Electricity System Operator’s (IESO) Long-Term 1 Request for Proposals (LT1 RFP). Developed in partnership between Potentia Renewables Inc. and the Algonquins of Pikwakanagan First Nation, the facility builds on other projects such as the Oneida Energy Storage facility, to bring Ontario’s total energy storage capacity to nearly 3,000 megawatts (MW) and collectively create up to 3,000 jobs across the province.

“On behalf of the Algonquins of Pikwakanagan First Nation, I want to thank our partners at Potentia, our project team and all those who have supported this important work”, said Chief Greg Sarazin of the Algonquins of Pikwakanagan First Nation. “Together, we are showing that when First Nations are included as full participants in Canada’s energy landscape, everyone benefits. Chì Mìgwech. Thank you.”

Building the largest battery storage fleet in the country is a key pillar of Energy for Generations, Ontario’s long-term roadmap to deliver reliable, affordable and secure energy to power the most competitive economy in the G7. The plan also underscores the province’s commitment to ensuring Indigenous partners share in the economic growth and prosperity generated by energy development in their territories as Ontario expands its electricity system. With a clear path forward, Energy for Generations is not only meeting the demands of today, but it is protecting jobs, supporting workers and powering economic growth for generations to come, while supporting economic reconciliation for generations to come.

Quick Facts

Energy storage will allow the storage of baseload generation like nuclear and hydro while also supporting the integration of intermittent resources like wind and solar.
Through the Expedited Long-Term Request for Proposals (E-LT1 RFP) and LT1 RFP procurements, Ontario has secured almost 3,000 MW of battery storage capacity, the largest single battery storage procurement in Canadian history.
Nine out of 10 of the selected storage projects under the LT1 RFP have Indigenous ownership, representing more than 1,400 MW of capacity.
The Ontario government has also launched the Second Long-Term Request for Proposals (LT2 RFP), the largest competitive energy procurement in the province’s history.
The government’s series of competitive procurements are designed to attract a diverse mix of technologies through open, transparent processes that will secure the electricity Ontario needs to support the building of new homes, businesses and communities.

Quotes

“I’m proud that we’re breaking ground on Canada’s largest battery storage facility right here in Leeds—Grenville—Thousand Islands and Rideau Lakes. The Township of Edwardsburgh Cardinal has demonstrated real leadership on this project, which brings together the private sector, municipalities, First Nations and our government. Today marks a significant milestone in building a cleaner, more reliable energy future that will power economic growth in Eastern Ontario and across the province.”

– Steve Clark
MPP for Leeds—Grenville—Thousand Islands and Rideau Lakes

“Edwardsburgh Cardinal is ready to lead. The groundbreaking of the Skyview 2 Battery Energy Storage System project marks a historic moment for our township and for Ontario’s energy future. As the largest battery energy storage initiative in Canada, this project reflects our council’s bold leadership, our proven ability to deliver and our commitment to supporting the infrastructure this province needs. We are a thankful and willing host because we know projects like this strengthen and protect Ontario jobs and contribute to Canada’s economic resilience. I’m proud of our council for stepping up and saying yes to opportunity. With available land, a clear vision and the will to support critical infrastructure, Edwardsburgh Cardinal is doing its part and positioning itself as a driving force in the growth and resilience of the St. Lawrence region.”

– Tory Deschamps
Mayor of the Township of Edwardsburgh Cardinal

“The Skyview 2 Battery Energy Storage System reflects what’s possible when partnership and collaboration come first. Working alongside the Algonquins of Pikwakanagan First Nation, the Township of Edwardsburgh Cardinal and the IESO, we’re not only building Canada’s largest battery energy system, we’re building relationships that will deliver lasting benefits to all stakeholders.”
– Ben Greenhouse
CEO, Potentia Renewables

“Ontario’s electricity system plays a critical role supporting the province’s economic growth, and the construction of Canada’s largest battery storage project will help attract investment by keeping our grid reliable and affordable. The Skyview 2 project is a testament to the great things we can accomplish when Indigenous communities, municipalities, private industry and government work in partnership to shape our shared energy future.”

– Lesley Gallinger

President and CEO, Independent Electricity System Operator

“Skyview 2 is a landmark achievement and a powerful demonstration of how Ontario is leading the country on energy storage procurement. This project strengthens reliability and positions the province to compete for the next generation of investment. Energy Storage Canada recently released a Canadian Market Outlook for storage which shows that Canada will require more than 30 gigawatts of energy storage by 2050 to meet growing electricity demand and achieve a net-zero grid. Ontario’s proactive investment through projects like Skyview 2 and its record-setting storage focused procurements sets the pace for the rest of the country and proves the province is ready to build the reliable, clean and competitive power system that industries and communities need.”
– Justin W. Rangooni
President & CEO, Energy Storage Canada

“The start of construction on the Skyview 2 Battery Energy Storage System is a monumental achievement and a major milestone in Ontario’s clean energy transition. As the largest facility of its kind in Canadian history, this project is essential to meeting Ontario’s growing electricity demand and delivers on the province’s long-term plan for a secure and affordable grid. We applaud the partnership between Potentia Renewables and the Algonquins of Pikwakanagan First Nation, which serves as a powerful model of economic reconciliation for critical infrastructure. By enhancing the reliability and flexibility of our system, this Indigenous-led initiative is cementing Ontario’s position as a global leader and the most competitive jurisdiction for energy investment in the G7.”
– Vince Brescia
President & CEO, Ontario Energy Association

“We welcome today’s announcement, which will strengthen Ontario’s grid, boost economic prospects and help advance economic reconciliation by ensuring Indigenous communities share in the benefits of clean growth. Energy storage is critical infrastructure. Clean, reliable, affordable power is a competitive advantage and a key reason investors choose Ontario as a place to build. As energy demand surges with economic and population growth, storage helps keep costs down, improves reliability and supports more clean generation. This is how we create jobs and grow Ontario’s economy — by building the clean electricity grid business can count on.”
– Merran Smith
President, New Economy Canada

“Battery energy storage is essential infrastructure for Canada’s clean energy future, enabling us to maximize the value of power generation while maintaining grid reliability as electricity demand increases. The Skyview 2 project embodies meaningful Indigenous partnership and innovative technology working together to deliver the affordable, reliable power that Ontario needs to meet the demands of its growing economy. We’re so pleased to see CanREA Industry Leader member Potentia and its partners at the Algonquin of Pikwakanagan First Nation leading this charge. With the Ontario government’s support of predictable procurements for capacity and energy, we can expect more projects like this to bring value to Ontarians.”
– Vittoria Bellissimo
President and CEO, Canadian Renewable Energy Association (CanREA)

“Energy storage strengthens Ontario’s grid by aligning production with consumption and reducing waste. It’s exactly the kind of smart infrastructure investment Ontario Chamber members support. By building a more flexible, efficient system, Ontario is advancing the competitiveness and reliability our growing economy demands.”
– Daniel Tisch
President and CEO, Ontario Chamber of Commerce

Additional Resources