Boralex starts up Sanjgon battery energy storage plant

Executive Summary

• Boralex Inc. has commercially commissioned the Sanjgon battery energy storage facility in Lakeshore, Ontario, marking its first operational energy storage facility in North America.
• The project, developed in partnership with Walpole Island First Nation, adds 80 MW/320 MWh of capacity, bringing Boralex’s total installed storage capacity in Canada to 380 MW, making it the largest battery storage operator in the country.
• The commissioning is a key milestone in Boralex’s 2030 strategy, with additional projects like Hagersville (coming online in weeks) and Oxford (under development) further expanding its storage portfolio.

Key Details

• Project Name: Sanjgon Battery Energy Storage (formerly Tilbury).
• Location: Municipality of Lakeshore, Ontario.
• Capacity: 80 megawatts (MW) / 320 megawatt-hours (MWh).
• Technology: 89 Tesla Megapack 2XL units (utility-scale lithium-ion battery systems).
• Performance: Capable of four hours of continuous full-power delivery to the grid.
• Strategic Significance: Boralex’s first operational energy storage facility in North America.
• Portfolio Impact: With Sanjgon operational and the Hagersville battery energy storage park scheduled for commissioning in the coming weeks, Boralex will reach 380 MW of installed storage capacity in Canada.
• Future Pipeline: Additional storage projects are under development, including the Oxford project, expected to begin construction shortly.
• Community Partnership: Developed in collaboration with Walpole Island First Nation; includes a community benefit agreement with the Municipality of Lakeshore providing $1,000 per megawatt annually for the life of the project.
• Regulatory Context: Selected through the Independent Electricity System Operator’s (IESO) expedited long-term request for proposals; supports Ontario's Resource Adequacy Framework.
• Company Capacity Context: Boralex’s total installed capacity reached 3,403 MW as of the date of the release (up from 3,303 MW as of Sept 30, 2025, following a new 100 MW wind farm commission).

Notable Quotes

• Patrick Decostre, President and CEO, Boralex: "The commissioning of the Sanjgon battery energy storage park marks a pivotal moment in our journey toward a more flexible, resilient and affordable energy system. It's a concrete step forward in delivering on our 2030 strategy and create durable value for our shareholders, expanding our presence in storage, and reinforcing our commitment to innovation and community partnerships."
• Robin Deveaux, EVP and GM, North America, Boralex: "Sanjgon is a clear demonstration of our ability to deliver high-impact, community-rooted infrastructure... Together, we've laid the foundation for a new chapter in Ontario's renewable energy future -- one built on trust, innovation and shared ambition and designed to make renewable energy more accessible and affordable for all."
• Leela Thomas, Chief, 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."