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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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Transmission line Sector Participants

Capacity auction engagement set to launch

As part of our efforts to build a more competitive marketplace, the IESO is launching an engagement to develop a capacity action that will enable broad participation, while improving system reliability and cost-effectiveness.

Sign up today for the August 22 kick-off webinar (2 p.m.-3:30 p.m.), which will cover the high-level scope, purpose and timing of the engagement, and solicit initial feedback on the engagement approach. Visit the engagement page to learn more.

Toronto street scene Sector Participants

Toronto IRRP posted

The Toronto Region Integrated Regional Resource Plan, which considers the potential for long-term electricity demand growth and varying supply conditions between 2019 and 2040, is now online.  

The plan identifies new capacity and reliability system needs and recommends approaches for addressing a number of end-of-life asset replacements and potential longer-term capacity requirements to accommodate growth and city development.

To learn more about the study scope, and Toronto’s power system needs and plan options, download the full report.

Market Renewal Sector Participants

Milestone reached

An important milestone has been reached in the Market Renewal Program with the release of the final energy stream high-level design documents.

This marks the completion of the high-level design phase for the energy work stream and brings the IESO another step closer to delivering a more stable, competitive and efficient marketplace that will produce greater value for Ontario ratepayers.

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