Ontario’s electricity system has many moving parts, all working together to ensure electricity supply remains reliable, affordable and sustainable. Here are some quick facts, videos and online tools to help boost your energy IQ.
Ontario’s electricity system is a complex and interconnected network of suppliers, transmitters, distributors and customers. The IESO works at the centre of the sector, ensuring each of these parts works together to ensure reliable, affordable and sustainable electricity. Watch these short video explainers to learn more about how the IESO operates Ontario's electricity system.
Featured Video: Energy Storage
Energy storage has many benefits for communities, including supporting the integration of renewable resources, spurring economic development and providing back-up power during emergencies.
About the IESO
The IESO works at the heart of Ontario’s power system managing the grid, overseeing the electricity market and planning electricity system infrastructure.
Balancing Supply and Demand
The IESO manages supply and demand in real-time, ensuring that Ontarians have the electricity they need when they need it.
Pathways to Decarbonization
As Ontario’s electricity system planner, the IESO is taking action to help prepare the grid for decarbonization.
What is an Electricity Market
Electricity, like other commodities, is made by suppliers and then sold to customers. In Ontario, that process is governed by the wholesale electricity market.