Boralex commissions Hagersville as Canada's largest operating battery storage facility.

Boralex and the Six Nations of the Grand River Development Corporation have commercially commissioned the Hagersville Battery Energy Storage Park, a 300 MW / 1,200 MWh facility reported as the largest operating battery storage site in Canada.

Boralex and the Six Nations of the Grand River Development Corporation have commercially commissioned the Hagersville Battery Energy Storage Park in Hagersville, Ontario. The facility is reported as having 300 MW / 1,200 MWh of installed capacity and was co-developed by Boralex and SNGRDC. Project partners say the build used 334 Tesla Megapack 2XL units and prioritised opportunities for local Six Nations labour through A6N and other local partners. An official inauguration event is planned for Spring 2026. Key details: - The Hagersville Battery Energy Storage Park reached commercial commissioning and is reported as Canada’s largest operating battery energy storage facility. - Installed capacity is 300 MW / 1,200 MWh, capable of up to four hours of continuous full-power delivery to the grid. - The site uses 334 Tesla Megapack 2XL units as its utility-scale lithium-ion battery systems. - The project was co-developed by Boralex and Six Nations of the Grand River Development Corporation, with A6N General Partnerships engaged for key civil works and a Community Benefit Agreement with Haldimand County. - The article states Boralex’s total operational storage now reaches 380 MW / 1,520 MWh and SNGRDC’s total installed storage is 550 MW / 2,200 MWh; additional projects, including a 125 MW / 500 MWh Oxford project, are under development. Summary: The article frames Hagersville as supporting Ontario grid stability and greater integration of renewable energy while highlighting Indigenous and local participation in delivery and construction. An inauguration event is planned for Spring 2026, and partner organisations report further storage projects are in development.