The 80 MW/320 MWh facility is located in Lakeshore, Ontario, in Canada, providing 80 MW of capacity and 320 MWh of storage, equivalent to four hours of full-power output. It was developed following a call for proposals (CfP) from Ontario’s Independent Electricity System Operator (IESO) aimed at enhancing grid flexibility and resilience.
Boralex is currently expanding into utility-scale storage as part of progress towards achieving its 2030 Strategic Plan. The BESS was named “Sanjgon” – originating from the Nishnaabemwin language - to honour the Walpole Island First Nation, embodying the company’s commitment to honouring indigenous culture by co-developing a respectful and inclusive project. This in turn strengthens local acceptance of the project, which is often a major factor in the success of major energy facilities.
The project encompasses a community benefit agreement with the Municipality of Lakeshore, providing an annual contribution of $1,000 per MW. Over the life of the project, this agreement will support local initiatives and demonstrates the long-term, trust-based relationship between Boralex and its partners.
“We are pleased to reach this major milestone for the Sanjgon Battery Energy Storage facility and our community” said Leela Thomas, Chief of the Walpole Island First Nation. “The Sanjgon Battery Energy Storage facility marks a significant step toward a cleaner, more reliable energy future. Walpole Island First Nation values this partnership with Boralex, working together to advance sustainable solutions that benefit our communities for generations to come.”
The system integrates 89 Tesla Megapack containers across the site, storing a total of 320 MWh of energy - approximately four hours of full-power operation. It helps to stabilise the Ontario electricity grid and improves resilience to fluctuations by maximising renewable energy integration. By storing electricity during off-peak periods and releasing it during peak hours, the system reduces reliance on gas-fired power plants and reduces emissions.
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