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Electricity periods and tiers for May 1

Electricity periods and tiers for May 1

On May 1, 2023, summer Time-of-Use (TOU) hours and the change in the Tiered threshold for residential customers under the Ontario Energy Board’s  Regulated Price Plan will take effect and remain in place until October 31, 2023. Electricity prices for both remain unchanged.                         

The Ontario Energy Board sets the pricing for these two different types of rates, once a year, on November 1. Only changes to TOU hours and the change in Tier threshold occur May 1.

New Ultra-Low Overnight (ULO) price plan to come into effect by Nov. 1 

By November 1, Utilities Kingston will offer residential and small business customers the new Ultra-Low Overnight (ULO) price plan. ULO has four price periods, one of which is a very low-priced overnight period. We're taking steps to put this new plan into place as soon as possible, and will provide more information when it's available. 

The TOU prices set by the OEB are shown in the table below. The table also shows the hours to which those prices apply.

TOU periods

Summer hours

 May 1, 2023 TOU prices 


Weekdays from 7 p.m. - 7 a.m. All day weekends and holidays

  7.4 ¢/kWh


Weekdays 7 a.m. – 11 a.m. and 5 p.m. – 7 p.m.

10.2 ¢/kWh


Weekdays 11 a.m. – 5 p.m. 

 15.1 ¢/kWh

The table below shows the prices for customers paying Tiered prices:


Summer thresholds

May 1, 2023 Tiered prices

Tier 1

  • Residential – first 600 kWh/month
  • Non-residential – first 750 kWh/month

8.7 ¢/kWh

Tier 2
  • Residential – for electricity used above 600 kWh/month
  • Non-residential – for electricity used above 750 kWh/month

 10.3 ¢/kWh

Power is personal 

Residential and small business customers can choose their price plan, either TOU or Tiered pricing. Customers are not required to select a price plan, but if you wish to switch, you must notify Utilities Kingston by completing and submitting an election form. 

Programs to support electricity customers

  • A number of programs are available to help low-income consumers. Find out more at

  • Utilities Kingston’s electricity customers can learn more about available assistance from our website.

Additional information and resources 

  • Learn more about how Ontario is keeping your electricity bill stable.
  • Refer to the MyUtilities customer portal to view your household usage of water, electricity and gas. Use the information to shift your electricity use to off-peak times when it costs less.

Did you know? Kingston Hydro electricity customers receive their bill through Utilities Kingston. Many benefit from the convenience of one combined bill for all their utility services, which may also include water, wastewater and gas. A combined bill helps lower costs for all rate payers. Learn more about your electricity bill, including TOU and tiered pricing.