IESO Reliability Outlook: New Energy Storage to Keep Ontario System Prepared for Summer 2026
June 23, 2026 Ontario’s electricity system is prepared for summer 2026 with adequate supply – bolstered by more than 1,000 MW of new capacity added to the grid since last summer – to meet demand, according to the IESO’s latest 18-month Reliability Outlook. Ontario demand is forecast to grow this year by a slower 0.5…


