Oneida Energy Storage Project
Province: Ontario
City/Region: Nanticoke
Image Credit: Northland Power
78
Project Rank
Project End: 2025
Project Type: Transmission
Industry Sector: Energy
Project Amount: $900 million
Date of Completion: 2025
Funding Source: Private/Public
Federal Funding: $$585 million (Canada Infrastructure Bank: $535M/Natural Resources Canada: $50M)
Previous Rankings
2025 | 78 |
2024 | 69 |
About The Project
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.
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
Engineer: CIMA+
Other Key Players: INTECH (risk advisor)
Other Suppliers: Tesla (battery supplier)
Legal: Borden Ladner Gervais (Northland Power); Stikeman Elliott LLP (lender)
Key Players
Key Players’ recognize the organizations whose work, knowledge, and expertise go into constructing and delivering the significant projects that make our annual list.
Platinum (20+ Projects)
- Accenture
- AECOM
- Aecon
- AGAT Labs
- Aon
- Arcadis IBI Group
- CIMA+
- Deloitte
- Dentons
- Dillon Consulting
- E.S. Fox
- Egis
- EllisDon
- Englobe
- Entuitive
- EXP
- EY
- GHD
- Golder (WSP)
- Hanscomb
- Hatch
- HKA
- Infrastructure Ontario
- INTECH Risk Management
- Jacobs
- KPMG
- LEA Group
- McElhanney
- Norton Rose Fulbright
- Parsons
- PCL
- Stantec
- Tetra Tech
- TULLOCH
- Victaulic
- Wood (WSP)
- WSP
Silver (10-14 Projects)
- ACCIONA Infrastructure Canada
- Accuracy
- ACS Infrastructure
- Associated Engineering
- Bennett Jones LLP
- Bird Construction
- Blake, Cassels & Graydon
- COWI
- Davies Ward Phillips & Vineberg
- DECAST Ltd.
- HDR
- Hemmera
- Infrata
- Kasian
- LRI Engineering
- Matrix Solutions
- McMillan LLP
- Montrose Environmental
- Mulvey & Banani
- NORR Architects & Engineers Ltd.
- Osler
- Rider Levett Bucknall
- Sener SES Canada Inc.
- Singleton Urquhart Reynolds Vogel
- Tiree
- Torys
Bronze (5-9 Projects)
- Allnorth
- Amico
- Andritz Hydro Canada
- Arium Design
- Astaldi
- Bessac
- Bombardier
- Caisse Centrale Desjardins
- Cameco
- Cannon Design
- CRH Canada
- Crossey Engineering Ltd.
- Daoust Lestage
- Dexter Quebec
- Dr. Sauer & Partners
- Entro
- Flatiron
- International Bridge Technologies
- Johnson Controls
- KGS Group
- Laker Energy
- LeighFisher
- Milestone Environmental
- Modern Niagara Toronto Inc.
- Montgomery Sisam Architects Inc.
- Nu-Tech Precision Metals
- Plenary Americas
- PwC
- RBC Dominion Securities Inc.
- Siemens
- Space2Place
- STRABAG Inc.
- Turner Construction Company
- Valard
- WestPro
- Worley