Boralex commissions 300 MW battery storage facility

Executive Summary

• Boralex Inc. and Six Nations of the Grand River Development Corp. (SNGRDC) have commercially commissioned the Hagersville battery energy storage park, establishing it as Canada's largest operating battery energy storage facility.
• The project significantly expands the operational portfolios of both partners, with Boralex becoming Canada's largest battery storage operator and SNGRDC becoming the largest indigenous holder of battery storage assets in North America.
• The facility plays a critical role in Ontario's energy grid stabilization, supporting the integration of intermittent renewable energy sources and meeting capacity needs identified by the Independent Electricity System Operator (IESO).

Key Details

• Facility Specifications: The Hagersville park has an installed capacity of 300 MW / 1,200 MWh, utilizing 334 Tesla Megapack 2XL units (utility-scale lithium-ion battery systems) capable of up to four hours of continuous full-power delivery.
• Boralex Portfolio Impact: The commissioning brings Boralex's total installed storage capacity to 380 MW / 1,520 MWh, consolidating its position as Canada's largest battery storage operator.
• SNGRDC Portfolio Impact: This is SNGRDC's second battery energy storage facility to reach commercial operation. Combined with the recently launched Sanjgon facility, SNGRDC now holds a total of 1 GW of storage capacity, making it the largest indigenous holder of battery storage assets in North America.
• Future Pipeline: SNGRDC has four additional storage projects under development. Specifically, the 125 MW / 500 MWh Oxford project is in partnership with Boralex and is expected to begin construction shortly.
• Industry Recognition: The project was recently recognized as the "Innovative Clean Energy Project of the Year" by the Canadian Renewable Energy Association (CanREA).
• Community and Local Impact: The project prioritized local labor, with civil works delivered by A6N General Partnerships (majority owned by SNGRDC in partnership with Aecon). It also includes a community benefit agreement supporting Haldimand County.
• Upcoming Events: An official inauguration event is planned for spring 2026.

Notable Quotes

• Patrick Decostre, President and CEO of Boralex: "The commissioning of the Hagersville battery energy storage park is a defining moment in our 2030 strategic plan. It demonstrates our ability to deliver transformative infrastructure that strengthens grid reliability and accelerates the integration of renewable energy across North America..."
• Matt Jamieson, President and CEO of SNGRDC: "SNGRDC is pleased to once again collaborate with Boralex on a transformative project like the Hagersville battery energy storage park. This project builds on our rapidly expanding battery energy storage portfolio and further reinforces SNGRDC's role as a leader in this field."
• Lesley Gallinger, President and CEO, IESO: "The Hagersville battery energy storage park will build on a track record of delivering cost-effective energy storage projects through the Independent Electricity System Operator's competitive procurements... getting new electricity resources built in Ontario to help keep the province's grid reliable and affordable..."