IESO appeals for reduced electricity consumption in the GTA


Electrical Commissioning In Industrial Power Systems

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:
$599
Coupon Price:
$499
Reserve Your Seat Today
The Independent Electricity System Operator (IESO) is asking consumers in the Greater Toronto Area (GTA) to reduce their use of electricity during peak demand times for June 26 and 27.

High temperatures and high humidity levels are resulting in increased demand for electricity through air conditioning use. There are also limitations on the generation and transmission system serving the GTA as a result of equipment outages.

As a precautionary measure, the IESO is asking customers to reduce demand to help relieve the strain on the system serving the GTA. Curtailment efforts can reduce demand and provide additional operating flexibility to help maintain reliability in the area should further problems develop.

Residential and business consumers are being asked to reduce their electricity consumption, where possible, between noon and 8:00 p.m. over the next two days.

Consumers can reduce the demands on the electricity system between noon and 8:00 p.m. by:

- Turning off all but essential internal and external lights;

- Set air conditioners to 26 degrees Celsius or higher, or use fans as an alternative;

- Close curtains and blinds to keep out the sun and retain cooler air inside; and

- Limit the use of major power-consuming equipment such as dishwashers, washers and dryers and swimming pool pumps.

Related News

India's Solar Growth Slows with Surge in Coal Generation

India Solar Slowdown and Coal Surge highlights policy uncertainty, grid stability concerns, financing gaps, and…
View more

Hydro One extends ban on electricity disconnections until further notice

Hydro One Disconnection Ban Extension keeps Ontario electricity customers connected during COVID-19, extending the moratorium…
View more

Are Norwegian energy firms ‘best in class’ for environmental management?

CO2 Tax for UK Offshore Energy Efficiency can accelerate adoption of aero-derivative gas turbines, flare…
View more

Duke Energy seeks changes in how solar owners are paid for electricity

Duke Energy Net Metering Proposal updates rooftop solar compensation with time-of-use rates, lower grid credits,…
View more

Energy Vault Secures $28M for California Green Hydrogen Microgrid

Calistoga Resiliency Centre Microgrid delivers grid resilience via green hydrogen and BESS, providing island-mode backup…
View more

N.S. joins Western Climate Initiative for tech support for emissions plan

Nova Scotia Cap-and-Trade Program joins Western Climate Initiative to leverage emissions trading IT systems, track…
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