The Oneida Energy Storage Project, Canada’s largest grid-scale battery storage facility and one of the largest globally, has officially begun commercial operations. Located in Haldimand County, Ontario, the 250-megawatt (MW) / 1,000-megawatt-hour (MWh) facility is powered by 278 Tesla Megapacks.
At full capacity, the project doubles Ontario’s grid-connected energy storage from 225 MW to 475 MW. It is expected to cut greenhouse gas emissions by as much as 4.1 million tonnes over its lifetime—the equivalent of removing 40,000 cars from the road annually.
The project received $50 million in federal funding through Natural Resources Canada’s Smart Renewables and Electrification Pathways program.
Ontario Minister of Energy and Mines, Stephen Lecce, praised the project as a “critical step” toward making Canada a clean energy superpower. “Oneida sets a global benchmark for sustainable infrastructure through its advanced technology and Indigenous collaboration,” he said.
Northland Power and its partners in the project released this video showcasing the new battery storage facility and its benefits. Interestingly they decided to intentionally blur out the “TESLA” logo on the Megapack units. This was likely done to prevent any negative feedback or coverage from using a product from one of Elon Musk’s companies.
Northland Power released this video on the Oneida Battery Storage Project in Ontario
— Drive Tesla (@DriveTeslaca) May 8, 2025
Notice anything? They blurred out the TESLA logo on the @Tesla_Megapack. Any guesses as to why? @northlandpower https://t.co/CAXEUJGoX9 pic.twitter.com/hVGF47v4uQ
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