Hydro Ottawa paper bill with pen on top

Rates and Conditions

New Electricity rates came into effect on May 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.

The total monthly bill for a typical residential customer consuming 800 kWh per month increased approximately $5.71 per month or 4.6% per month.

Rates effective May 1, 2015

For more information please view our Residential Rates Brochure.
For Residential Rates in effect between January 1, 2015 and April 30, 2015, click here.

Business rate information can be found here.


Time of Use Pricing (Summer Weekdays)
Off-Peak (7 pm to 7 am and all day weekends and holidays) $0.080/kWh
Mid-Peak (7 am to 11 am and 5 pm to 7 pm) $0.122/kWh
On-Peak (11 am to 5 pm) $0.161/kWh

Electricity used on weekends and holidays is charged the off-peak price during both the winter and summer periods.


Transmission $0.0119/kWh
Hydro Ottawa Delivery $0.0234/kWh
Hydro Ottawa Fixed Charge $9.67/month
Smart Meter Entity Charge $0.79/month
Low Voltage Services Charge $0.00006/kWh
Delivery Line Loss Charge See below for calculation2



Debt Retirement


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: (Adjusted Consumption - Unadjusted Consumption) x current month’s energy rate per kWh.
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 customers of the former Casselman Hydro, this rate is $0.007/kWh as Casselman Hydro did not own any generating plants.