Hydro Ottawa paper bill with pen on top

Rates and Conditions

Current electricity rates came into effect on November 1, 2015 for Regulated Price Plan (RPP) customers. The majority of residential customers are on the RPP. These rates are set by the Ontario Energy Board.

Notice to our customers: As of January 1, 2016, the Delivery Charge (includes Hydro Ottawa’s charge), the Regulatory Charge and the Debt Retirement Charge have changed.

The total monthly bill for a typical residential customer consuming 800 kWh per month increased by approximately $8.06 or 5.7 % per month. 

Rates effective January 1, 2016

For more information please view our Residential Rates Brochure.
For Residential Rates in effect between November 1, 2015 and December 31, 2015, click here.

Business rate information can be found here.


Time of Use Pricing (Winter Weekdays)
Off-Peak (7 pm to 7 am and all day weekends and holidays) $0.083/kWh
Mid-Peak (11 am to  5 pm ) $0.128/kWh
On-Peak (7 am to 11 am and  5 pm to 7 pm) $0.175/kWh
Electricity used on weekends and holidays is charged the off-peak price during both the winter and summer periods.


Transmission $0.0123/kWh
Hydro Ottawa Variable and Other Charges - RPP1  $0.016945/kWh
Hydro Ottawa Variable and Other Charges - Non RPP $0.019755/kWh
Hydro Ottawa Fixed and Other Charges $13.28/month
Smart Meter Entity Charge $0.79/month
Low Voltage Services Charge $0.00007/kWh
Delivery Line Loss Charge See below for calculation2



Debt Retirement


Other Charges

As a residential customer, you receive your Hydro Ottawa bill every month. Learn about some of the additional rates and charges that may appear on your bill.

1 The Ontario Energy Board (OEB) sets the RPP rates. RPP prices are reviewed and adjusted twice a year in the spring (May 1) and in the fall (November 1). The price changes only affect households and small businesses who buy their electricity from their local utility.The vast majority of Hydro Ottawa customers pay Time-of-Use rates. If you are a Tiered price customer, please visit ontarioenergyboard.ca for more information.
2 The Delivery Line Loss Charge calculation is: Electricity Charge Consumption (per RPP Category) multiplied by the loss factor multiplied by the current month’s Electricity Charge per RPP Rate.
3 For Standard Supply Service customers (not purchasing the electricity commodity 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 For residential  customers including  those  of the former Casselman Hydro, the Debt Retirement Charge has been removed from bills as of January 1, 2016.

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