Time-of-Use Rates


Main Office
526 Country Squire Rd.
P.O. Box 640
Waterloo, ON
N2J 4A3

Phone: 519-886-5090
Fax: 519-746-0133

Most of our customers pay Ontario Energy Board set time-of-use electricity prices. Time-of-use divides the day into three rate periods:

  • Off-peak, when demand for electricity is lowest.
  • Mid-peak when demand for electricity is moderate.
  • On peak when demand for electricity is highest.

The rate you pay for electricity in each of these periods reflects the costs of supplying electricity at that time of day. When demand for electricity is lower, electricity is less expensive. More expensive sources of electricity are used when demand is higher, which in turn makes the price higher.

There is both a Winter and Summer schedule for Time-of-use pricing which are set by the Ontario Energy Board and are reviewed every May 1 and November 1.  The Ontario Energy Board reviews rates every 6 months. For additional information on time-of-use pricing and time periods, visit the Ontario Energy Board Web site.

Would you like to learn more about Time-of-Use pricing? Read our Time-of-Use Rates Fact Sheet for the answer to any questions you may have. Download your copy  here.

Summer Time- of - Use: May 1 - October 31

In Summer, electricity use peaks during the hottest part of the afternoon, when air conditioners are running on high. On-peak hours are mid-day.

Winter Time - of - Use: November 1 - April 30

In Winter, less daylight means electricity use peaks twice: once in the morning when people wake up and turn on their lights and appliances, then again when people get home from work. These are two sets of on-peak hours to reflect this. 

Current Time - of - Use Rates - Winter Period

Off-Peak | 10.1 ¢/kWh - Weekdays 7:00 pm to 7:00 am and All Day on Weekends & Holidays

Mid-Peak | 14.4 ¢/kWh -  Weekdays 11:00 am - 5:00 pm

On-Peak | 20.8 ¢/kWh - Weekdays 7:00 am - 11:00 am  and 5:00 pm - 7:00 pm


Download the Winter Time - of - Use Rates card

                        Winter 2019 Time of Use Rates

Holiday Rates

Off-peak prices apply all day for all weekends and statutory holidays. To see which holidays are off-peak, visit the Time-of-use Holiday Schedule.

Time-of-use Calculator

Visit the smart house at 10 Smart Meter Lane Website and learn how shifting your electricity use makes sense.

Historic Time-of-use Rates

View historic time-of-use rates.

For more information on Time-of-use rates visit the IESO's website.