TORONTO — Aecon Group Inc. has announced Simcoe Battery Project General Partnership Inc., in which Aecon Concessions is an equity partner, has executed an energy storage facility agreement with Ontario’s Independent Electricity System Operator (IESO) to build, own and operate the 150 MW/1,200 MWh Simcoe Battery Energy Storage System (BESS) project in Norfolk County, Ont.
Aecon Concessions, Six Nations of the Grand River Development Corporation (SNGRDC), the Mississaugas of the Credit Business Corporation, Sitka Power Inc. and NRStor will be ownership partners.
According to a release, they will provide electricity storage services to the IESO through a 20-year agreement, receiving payments for capacity services as well as additional revenue from energy sold into the Ontario electricity grid and ancillary services.
Aecon will also serve as the Engineering, Procurement and Construction provider for the balance of plant works.
This agreement with Aecon is expected to be finalized. The target to commence commercial operations is 2030.
The Simcoe Battery Project complements Aecon Concessions’ ownership interest in the Oneida Energy Storage Project in Ontario, which has been successfully operating since May 2025.
Carney pushes back on calls to use energy as leverage in U.S. trade talks