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Notice to our customers: As of January 1 2015, our electricity Delivery Charge has changed.

The total monthly bill for a typical residential customer consuming 800 kWh per month increased approximately $1.58 per month or 1.22% per month.

Business rate information can be found here.

Rates effective January 1, 2015

For more information please view our Residential Rates Brochure.
For Residential Rates in effect between November 1, 2014 and December 31, 2014, click here.


Time of Use Pricing (Winter Weekdays)
Off-Peak (7 pm to 7 am and all day weekends and holidays) $0.077/kWh
Mid-Peak (11 am to 5 pm) $0.114/kWh
On-Peak (7 am to 11 am and 5 pm to 7 pm) $0.140/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 vast majority of Hydro Ottawa customers pay Time-of-Use rates. If you are a Tiered price customer, please visit 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.