Residential Rates

Important Notice – Effective May 1, 2021, new Time-of-use (TOU) and Tiered prices come into effect for residential customers under the Ontario Energy Board’s (OEB) Regulated Price Plan (RPP). The OEB regulates the province’s energy sector and sets these rates.

The Ontario Government is also changing the Ontario Electricity Rebate (OER) percentage effective May 1, 2021.

Business rate information can be found here.

Rates effective May 1, 2021


Time-of-Use Pricing (TOU) - summer periods effective May 1, 2021

Off-Peak (7 p.m. to 7 a.m.) Weekdays, all day Weekends and holidays8.2 ¢/kWh
Mid-Peak (7 a.m. to 11 a.m. and 5 p.m. to 7 p.m.) Weekdays11.3 ¢/kWh
On-Peak (11 a.m. to 5 p.m.) Weekdays17.0 ¢/kWh 

Electricity used on weekends and holidays is charged the off-peak price during both the Summer and Winter Periods.

For a list of holidays when off-peak prices are in effect, see our TOU Holiday Schedule

Tiered Pricing – summer thresholds effective May 1, 2021  

 Tier 1 - Residential – first 600 kWh/month9.8 ¢/kWh
Tier 2 - Residential – above 600 kWh/month11.5 ¢/kWh


Hydro Ottawa Variable and Other Charges - RPP1-$0.0006/kWh
Hydro Ottawa Variable and Other Charges - Non RPP$0.0020/kWh
Hydro Ottawa Fixed and Other Charges$29.06/month
Smart Meter Entity Charge$0.57/month
Low Voltage Services Charge$0.00005/kWh
Delivery Line Loss ChargeSee below for calculation2



Ontario Electricity Rebate


Other Charges

Learn about some of the additional rates and charges that may appear on your bill.

  1. The Ontario Energy Board (OEB) sets the residential and small business rates for electricity under Ontario’s Regulated Price Plan (RPP). The OEB reviews and adjusts these rates, if required, typically twice a year: in the summer (May 1) and in the winter (November 1). The majority of Hydro Ottawa’s residential customers are billed under the RPP. Temporary fixed COVID-19 rates have been put in place in both 2020 and 2021.
  2. The Delivery Line Loss Charge is calculated by multiplying the Electricity Charge Consumption (per RPP Category) by the loss factor and then multiplying this number by the current month’s Electricity Charge under the RPP rate.
  3. For customers who do not purchase their electricity from an electricity retailer, a monthly administration fee of $0.25 is added to the regulatory charge to recover a portion of the cost of systems required for the market.
  4. The Ontario government decreased the Ontario Electricity Rebate (OER) from 21.2% to 18.9% effective May 1, 2021.The decreased OER applies to customers’ bills effective May 1, 2021 and reduces the pre-HST amount of the bill. The OER largely replaces the Fair Hydro Plan adjustments to the price of electricity.
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