ONEIDA ENERGY STORAGE
The blueprint for Canadian energy storage.
Delivering flexible, reliable and sustainable energy for Ontario
About the Facility
Located in Haldimand County, Ontario, Oneida Energy Storage is a fully operational, 250 MW/1,000 MWh lithium-ion battery energy storage facility. It represents Canada’s largest operational energy storage facility, and is amongst the largest energy storage projects globally.
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Oneida Energy Storage is comprised of 278 battery units with enough capacity to power the City of Oshawa for an hour. Now drawing and storing power from the provincial grid, the Oneida Energy Storage facility delivers flexible, reliable and sustainable energy to help strengthen Ontario’s electricity grid and support the accelerated demand for clean energy across the province.
A vision brought to life through meaningful Indigenous participation and strong, capable partners.
About the Partnership
The Oneida Energy Storage Limited Partnership (Oneida LP) is a groundbreaking collaboration between Northland Power Inc., Six Nations of the Grand River Development Corporation, NRStor Inc., Aecon Concessions, and the Mississaugas of the Credit Business Corporation.
Beginning as an idea between foundational partners Six Nations of the Grand River Development Corporation and NRStor Inc. in 2018, and brought to life through strong, capable partners, Oneida prioritizes Indigenous involvement in clean energy. This project, funded by Natural Resources Canada and the Canada Infrastructure Bank, sets a new standard for public-private sector collaboration in Canada.
250 MW/1,000 MWh Oneida Energy Storage Project Commences Commercial Operations
TORONTO, May 7, 2025 – The Oneida Energy Storage Project (“Oneida”) has officially entered commercial operations, becoming the largest battery energy storage facility in operations in Canada, and one of the largest globally…
Behind the Scenes: Building Oneida
Follow along for a behind-the-scenes look at building Canada’s first battery energy storage facility.
CONTACT US!
Interested in learning more about the Oneida Energy Storage facility? Please complete the form and a member of our team will be in touch.