The Simcoe Battery Project General Partnership—a collaboration between Aecon, Six Nations of the Grand River Development, the Mississaugas of the Credit Business, Sitka Power, and NRStor—will manage the 1,200 megawatt-hour installation. Under the terms of the 20-year contract with the Independent Electricity System Operator (IESO), the partners will provide critical storage capacity, earning revenue through capacity payments and the sale of ancillary services to the grid.

Beyond its role as an equity partner, Aecon will act as the exclusive provider for engineering, procurement, and construction for the balance of plant works. This infrastructure development represents a strategic push to modernize Ontario's energy network, ensuring the system can handle the intermittency of renewable generation as demand grows.