Oneida Energy Storage Project

Rank 2024


Image Credit: Aecon

Industry Sector: Energy

Project Type: Transmission

Project Value: $900 million

Funding Source: Private/Public

Federal Funding: $585 million (Canada Infrastructure Bank: $535M/Natural Resources Canada: $50M)

Province: Ontario

City / Region: Nanticoke

Estimated End Date of Substantial Completion: 2025

Oneida Energy Storage Limited Partnership (Oneida LP) executed an agreement with the Independent Electricity System Operator (IESO) for the Oneida Energy Storage Project to deliver a 250 megawatt / 1,000 megawatt-hour energy storage facility. The project is the largest of its kind in Canada and amongst the largest in the world. It will provide a gigawatt-hour of much needed capacity to the Ontario grid, while prioritizing local Indigenous partnerships and environmental benefits. The scope of work includes designing the facility, procuring balance of plant facility equipment, installing equipment foundations, electrical houses, battery transformers, switch gears and underground cabling, as well as constructing a high voltage substation, and commissioning and startup activities. Construction is expected to commence in the second quarter of 2023, with anticipated completion in 2025. 

Project Owner: Oneida LP (Consortium: Northland Power; Six Nations of the Grand River Development Corporation; NRStor; Aecon Concessions)

Project/Construction Manager: Engineering, Procurement and Construction (EPC) contract: Aecon

Legal: Borden Ladner Gervais (Northland Power)