Skip Links
Lorem ipsum solor amet

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. 

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. Non-essential IESO staff are working from home, and increased hygiene and physical distancing measures are in place to protect remaining on-site employees. The IESO is not accepting visitors at our three facilities, 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 have been updated on the website to reflect this change.

Thank you for your patience and co-operation. Please contact if you have any questions.

Updated: March 26, 2020

Stay Connected


Save on Energy

Powering Tomorrow

New Episode of the Powering Tomorrow Podcast

On the latest episode of the podcast, we go beyond Ontario’s borders to get the North America-wide picture of the rapid transformation happening to power grids across the continent. Jim Robb, President and CEO of the North American Electric Reliability Corporation discusses the benefits of having an interconnected grid, and how the North American grid of the future will be more digitized, distributed and decarbonized.


Listen to episode here.

Digitial control panel Get Involved

Grid Innovation Fund Application Window opening soon

Starting March 31, 2020 until April 30, 2020, the Grid Innovation Fund is accepting applications for projects designed to pilot, and in some cases develop, innovative technologies, practices, services, research, and programs applicable to the electricity sector. A webinar is scheduled for April 3 to provide an overview of the process.

For more information, see Grid Innovation Fund.

Reliability Outlook Sector Participants

Reliability Outlook released

Ontario’s electricity system remains stable and reliable but the medium- and long-term impacts of COVID-19 on demand for electricity are yet unknown. The IESO is closely monitoring the situation in collaboration with its industry partners to ensure that we are collectively prepared to respond to changing grid conditions.

Read the Reliability Outlook for the period from April 2020 to September 2021.

Kilowatt way graphics

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