July 30, 2026
Announced 28 July, Aecon executed an energy storage facility agreement with IESO to build, own, and operate the Simcoe battery energy storage system (BESS) project, in which Aecon Concessions is an equity partner. Image: Pexels/Anurag Jamwal
Infrastructure and construction company Aecon Group has executed an agreement with Ontario’s Independent Electricity System Operator (IESO) for the 150MW/1,200MWh Simcoe energy storage project in Norfolk County, Ontario.
Announced 28 July, Aecon executed an energy storage facility agreement with IESO to build, own, and operate the Simcoe battery energy storage system (BESS) project, in which Aecon Concessions is an equity partner.
Aecon Concessions, Six Nations of the Grand River Development Corporation (SNGRDC), the Mississaugas of the Credit Business Corporation (MCBC), Sitka Power, and NRStor will be ownership partners, and will provide electricity storage services to the IESO through a 20-year agreement, receiving capacity payments from the IESO for capacity services, as well as additional revenue from energy sold into the Ontario electricity grid and ancillary services.
