The Hagersville battery storage farm has begun commercial operation, becoming the largest operational battery storage facility in Canada.
The project was developed by Boralex Inc. and Six Nations of the Grand River Development Corporation (SNGRDC) and has an installed capacity of 300 MW and 1,200 MWh, which will allow it to supply electricity for up to 4 hours at full power, providing flexibility to the Ontario provincial power grid.
Impact on Ontario’s power grid
The project incorporates 334 Tesla Megapack 2XL units, lithium-ion battery systems designed for grid-scale applications. The use of battery storage technology will allow Ontario’s infrastructure to balance intermittent sources such as wind and solar energy, adapting renewable generation to the actual needs of the electrical system.
Furthermore, the Hagersville energy storage farm addresses the energy capacity needs identified by the Independent Electricity System Operator (IESO) of Ontario, not only increasing energy security but also contributing to the decarbonization process of the electricity sector.
Collaboration between Boralex and the Six Nations community
The facility was jointly developed with the Six Nations of the Grand River Development Corporation, an entity representing the Six Nations Indigenous community; therefore, local worker participation was prioritized during construction.
In collaboration with the builder Borea, A6N General Partnerships—a company linked to SNGRDC and Aecon—executed key civil works on-site. This approach generated employment and economic benefits for the community while strengthening its participation in energy infrastructure projects.
A key project for the energy transition
The commissioning of the Hagersville storage farm marks a significant step in the evolution of the Canadian electrical system. Battery storage facilities are becoming an essential piece for integrating renewable energies and ensuring grid stability.
The official inauguration of the project is scheduled for the spring of 2026, when community representatives, Indigenous partners, political leaders, and the media will gather to celebrate the energy and symbolic relevance of this infrastructure.
Source and photo: Boralex