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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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Power Data

Valuable market data available in summary reports

The IESO issues daily, weekly and monthly summaries of market activity. Reports include market prices and demand data, as well as longer term trends.

Check out the Monthly Market Summary for June in the Market Summaries Archive.

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A more efficient and sustainable electricity market

The IESO is working with stakeholders to evolve Ontario’s electricity market to improve market efficiency and unlock future opportunities for all participants.

Read about benefits of Market Renewal.

Learn how stakeholders can participate in ongoing engagements.

Panelists speaking at IESO 2017 Stakeholder Summit Get Involved

Education & Capacity Building for Communities

Investing in human potential is an essential part of building a modern, flexible and dependable power system. The Education and Capacity Building program funds organization and community projects that help build the understanding and skills needed for managing and generating energy.

Learn more and apply.

Photo Credit: TREC Education

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Kilowatt Way

Whether you live in an apartment or a house – four quick questions will reveal how you use electricity and show you ways to become more energy efficient.

Visit Kilowatt Way

IESO Stakeholder Summit

The IESO thanks all those who participated in the 2017 Stakeholder Summit on June 12, 2017, in Toronto. Slide presentations and a recorded video of the event are posted on the Summit page.