Hagersville Battery Energy Storage Park
Project
Boralex and SNGRDC announced the commercial commissioning of the 300 MW / 1,200 MWh Hagersville Battery Energy Storage Park in Ontario, which consists of 334 Tesla Megapack 2XL units.
Deal Analysis
Boralex and Six Nations of the Grand River Development Corporation (SNGRDC) have announced the commercial commissioning of the Hagersville Battery Energy Storage Park in Ontario, Canada. This significant development project, with a capacity of 300 MW / 1,200 MWh, utilizes 334 Tesla Megapack 2XL units, marking a substantial addition to the region's energy infrastructure. The joint development by Boralex and SNGRDC underscores a collaborative approach to advancing large-scale energy storage solutions.
The Hagersville Battery Energy Storage Park is notable for its considerable scale, positioning it as a key asset for grid stability and reliability in Ontario. Its commissioning provides critical flexibility to the provincial grid, enabling better integration of intermittent renewable energy sources and enhancing overall system resilience. The involvement of SNGRDC as a developer highlights the growing participation of Indigenous communities in major energy infrastructure projects, while Boralex's role reinforces its commitment to renewable energy and storage development. The deployment of Tesla Megapack 2XL units further emphasizes the adoption of advanced, proven technology in utility-scale storage applications.
- Commercial commissioning of a 300 MW / 1,200 MWh battery energy storage park.
- Joint development by Boralex and Six Nations of the Grand River Development Corporation (SNGRDC).
- Utilizes 334 Tesla Megapack 2XL units, indicating advanced technology adoption.
- Located in Ontario, Canada, enhancing regional grid stability and renewable integration.
Source Intelligence
KEY DETAILS
The Hagersville Battery Energy Storage Park has a capacity of 1,200 MWh. It is a four-hour duration project. It was selected by the Ontario Independent Electricity System Operator (IESO) in 2023 as part of its Expedited Long-Term Request for Proposals (RFP) for storage capacity. The project is supporting Haldimand County through a “Community Benefit Agreement.” It is Canada's largest operating battery storage. The BESS site is located on the Niagara Peninsula in Southern Ontario, on the north shore of Lake Erie.
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Capacity
is 300 MW / 1,200 MWh in power and capacity.
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Location
Boralex and and Six Nations of the Grand River Development Corporation (SNGRDC) have announced the commercial commissioning of the Hagersville Battery Energy Storage Park in Ontario, a four-hour duration projects. The BESS site, located in Hagerville, on the Niagara Peninsula in Southern Ontario, Canada, on the north shore of Lake Erie
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PPA Details
It was selected by the Ontario Independent Electricity System Operator (IESO) in 2023 as part of its Expedited Long-Term Request for Proposals (RFP) for storage capacity.
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Announcement
Boralex and and Six Nations of the Grand River Development Corporation (SNGRDC) have announced the commercial commissioning of the Hagersville Battery Energy Storage Park
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COD
Canada's largest operating battery storage running Tesla Megapack 2XL units is now commissioned in Ontario - Energy Storage Advertisement Advertisement Advertisement Grid-scale Canada’s largest operating battery storage running Tesla Megapack 2XL units is now commissioned in Ontario The new battery energy storage system is located near Lake Erie and has unique community aspects. By Tristan Rayner Mar 03, 2026
PARTIES MENTIONED IN SOURCE
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Boralex
developer
"Boralex and and Six Nations of the Grand River Development Corporation (SNGRDC) have announced the commercial commissioning of the Hagersville Battery Energy Storage Park"
S
Six Nations of the Grand River Development Corporation (SNGRDC)
developer
"Boralex and and Six Nations of the Grand River Development Corporation (SNGRDC) have announced the commercial commissioning of the Hagersville Battery Energy Storage Park"
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Ontario Independent Electricity System Operator (IESO)
procurer
"It was selected by the Ontario Independent Electricity System Operator (IESO) in 2023 as part of its Expedited Long-Term Request for Proposals (RFP) for storage capacity."
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Haldimand County
beneficiary
"Boralex said it was also supporting Haldimand County through a “Community Benefit Agreement.”"
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A6N
local business
"The project has created employment opportunities for Six Nations band members through A6N during construction"
medium quality
Enriched Mar 4, 2026
Global Infrastructure Sherpa