Time-of-Use Rates for Electricity

The vast majority of Ontario electricity users pay Time-of-Use rates for the electricity they consume. These rates are set by the Ontario Energy Board.

There are three Time-of-Use price periods:

  • Off-peak - This is when demand for electricity is the lowest. Ontario households use most of their electricity - nearly two thirds of it - during off-peak hours which include weekends and holidays.
  • Mid-peak - This is when demand for electricity is moderate. These periods are during the daytime, but are not the busiest times of day.
  • On-peak  - This is when demand is the highest. The busiest times of day are generally when people are cooking, firing up their computers and running heaters or air conditioners.

The chart below shows the Time-of-Use rates effective May 1, 2019.

Time-of-Use RatesPricing
Off-Peak hours 7 p.m. to 7 a.m. Weekdays and all day Weekends and Holidays Off-Peak - 7 p.m. to 7 a.m. and all day weekends and holidays 6.5 cents per kilowatt hour
Mid-Peak hours 11 a.m to 5 p.m. Weekdays Mid-Peak - 7 a.m. to 11 a.m. and 5 p.m. to 7 p.m. 9.4 cents per kilowatt hour
On-Peak hours 7 a.m. to 11 a.m. and 5 p.m. to 7 p.m. Weekdays On-Peak - 11 a.m. to 5 p.m. 13.4 cents per kilowatt hour

If you've signed an electricity contract with an energy retailer company, these prices will not affect you since you pay the price in your contract.

For more information about Time-of-Use rates, visit the Ontario Energy Board.