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Transition to Renewed Market Successfully Completed

May 8, 2025

Ontario’s renewed electricity market is now live with the Real-Time and Day-Ahead Markets operating — a major milestone in the IESO’s work to modernize the province’s electricity markets to support a more efficient and reliable grid.

Visit the IESO's website to learn more about the renewed market — and be sure to explore some of the data visualizations on the new Market Data webpage.

We appreciate the support, effort and dedication of everyone involved in making this transition a success. Over the coming months, the IESO will continue to support market participants as they acclimate to the new market.

Please reach out to IESOCustomerRelations@ieso.ca if you have any questions or refer to the training resources that are available.

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