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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.

Ontario's power system is operating reliably through the COVID-19 pandemic. Please check this site for updates.

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See Ontario's changing demand conditions on the power data graphs.

Follow the IESO's Peak Tracker to monitor forecasted Ontario demand for the next 24 hours.

Hourly Output by Fuel Type (Transmission-Connected)  EDT
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month-to-date
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Coronavirus (COVID-19) update

Ontario’s electricity system is reliable with adequate supply to meet our needs. The IESO has implemented controls to ensure the continued reliable operation of the grid and minimize risks to its employees and stakeholders. Currently, most non-essential IESO staff are working from home, and increased hygiene and physical distancing measures are in place to protect those employees working onsite. The IESO is not accepting visitors at our three facilities, and in-person engagement and meetings are no longer being scheduled. Where possible, meetings and events including engagement activities are being moved to conference calls or webinars. Registration information has been updated on the website to reflect this change.

Thank you for your patience and co-operation. Please contact customer.relations@ieso.ca if you have any questions.

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Save on Energy

More from IESO

More from Save on Energy

Youth workshop held at Walpole Island First Nation from the Energy and Capacity Building 2.0 Program

Building Indigenous Energy Capacity

The IESO is providing $7.1 million in funding to 61 Indigenous communities and organizations across Ontario to support energy planning, renewable generation, energy-efficiency measures, as well as skills development and training.
IESO welcomes new SAC members

Stakeholder Advisory Committee

The IESO welcomes five new SAC members, representing consumers, distributor and transmitters and Ontario communities, recently appointed by the Board of Directors. Visit the SAC web page to learn more about its membership and upcoming meeting dates.
IESO Summit-Lite

IESO Summit-Lite

On June 22, the IESO will host a virtual ‘Summit-Lite’ event to kickoff the June Stakeholder Engagement Meetings (June 22-24). Energy thought leaders will share their perspectives on topics ranging from the advancement of distributed energy resource markets in Ontario and globally, as well as the ongoing role of innovation in providing solutions to system needs.

News and Updates:

Upcoming Events: