IESO releases 18-month outlook


Substation Relay Protection Training

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 12 hours Instructor-led
  • Group Training Available
Regular Price:
$699
Coupon Price:
$599
Reserve Your Seat Today
The reliability outlook for Ontario's electricity system is generally positive and improving over the next year and a half, said the Independent Electricity System Operator (IESO) in its latest 18-Month Outlook.

About 4,300 megawatts (MW) of new supply is scheduled to come into or return to service over the Outlook period, with further enhancements planned on the transmission network. Ontario's import capability will increase by about 30 per cent with the new 1,250 MW interconnection between Ontario and Quebec, scheduled to be completed by next spring.

"Ontario's reliability picture has improved compared to what we experienced last summer," said Ken Kozlik, IESO Chief Operating Officer. "We are heading into this summer with an additional 1,300 MW of supply on-line from the Portlands Energy Centre and two nuclear units that were unavailable last summer."

Under normal weather conditions, sufficient supply is forecast in Ontario to meet electricity demands for most of the summer with occasional reliance on imports from neighbouring jurisdictions. In cases of extreme weather, Ontario may rely more heavily on imports.

Lower energy demand is being forecast for 2009 compared to 2008 as a result of increasing conservation efforts and a slowing economy. Peak demands are also expected to decline in the 18-month forecast period.

Related News

The Haves and Have-Nots of Electricity in California

California Public Safety Power Shutoffs highlight wildfire prevention as PG&E outages disrupt schools, businesses, and…
View more

New Electricity Auctions Will Drive Down Costs for Ontario's Consumers

IESO Capacity Auctions will competitively procure resources for Ontario electricity needs, boosting reliability and resource…
View more

California electricity pricing changes pose an existential threat to residential rooftop solar

California Rooftop Solar Rate Reforms propose shifting net metering to fixed access fees, peak-demand charges,…
View more

Power Demand Seen Holding Firm In Europe’s Latest Lockdown

European Power Demand During Second Lockdowns remains resilient as winter heating offsets commercial losses; electricity…
View more

840 million people have no electricity – World Bank must fund more energy projects

World Bank Energy Policy debates financing for coal, oil, gas, and renewables to fight energy…
View more

This Floating Hotel Will Generate Electricity By Rotating All Day

Floating Rotating Eco Hotel harnesses renewable energy via VAWTAU, recycles rainwater for greywater, and follows…
View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Download the 2026 Electrical Training Catalog

Explore 50+ live, expert-led electrical training courses –

  • Interactive
  • Flexible
  • CEU-cerified