We operate the grid
At the IESO, we ensure Ontarians have access to the electricity they need when they need it – and at the lowest cost. Every minute of every day, we coordinate and direct the flow of electricity across the province, but we do much more than keep the lights on 24/7.
We plan for the future
We use data analytics, modelling and state-of-the-art technology to ensure the grid is reliable and resilient, and to plan to meet the province’s forecast electricity needs in the near, medium and long term – all while preparing for the unexpected.
We administer the markets
As the independent system operator, we design, run and oversee the $22-billion wholesale electricity markets, buying and selling electricity at the most competitive rates, and paving the way for existing and emerging resources to provide essential grid services.