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Connecting Today.
Powering Tomorrow.

The Independent Electricity System Operator (IESO) works at the heart of Ontario's power system. The IESO delivers key services across the electricity sector including: managing the power system in real-time, planning for the province's future energy needs, enabling conservation and designing a more efficient electricity marketplace to support sector evolution.

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Stakeholder Engagement Meetings

The agenda for the October 19-20 stakeholder engagement meetings is now available.

Meeting materials and recorded presentations for the September stakeholder engagement meetings are also posted.

Energy Storage in Ontario

Energy Storage in Ontario

Energy storage has many benefits for communities, including supporting the integration of renewable resources, spurring economic development and providing back-up power during emergencies.


Watch the video

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Resource Adequacy – June 2023

The most recent procurement for long-term supply has now concluded, adding a total of 882 MW to the province’s planned storage fleet, while complementary processes such as the growing Capacity Auction are securing resources to respond to upcoming system needs.

To learn more about how these procurements are helping to meet Ontario’s emerging electricity needs, visit the most recent Resource Adequacy update.