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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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EV article Powering Tomorrow

Electric vehicles and the grid

With electric vehicles (EVs) poised to take an increasingly larger share of the automotive market, the IESO is getting ready for the impact of their growth on the electricity system – and the potential opportunities they bring to the grid. Learn more about the e-mobility transformation driving the IESO’s investment – through its Grid Innovation Fund – in three research projects aimed at evaluating future EV usage models.

Reliability Outlook Sector Participants

Reliability Outlook released

The IESO’s Reliability Outlook presents Ontario’s demand forecast, as well as the adequacy of generation and transmission resources over the next 18 months. This edition also includes an extended 42-month outlook.

According to the latest outlook, Ontario’s power system is prepared to meet the province’s expected demand for electricity over the coming summer months.

To read the report, see Reliability Outlook.

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.

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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