Hydro Ottawa paper bill with pen on top

Rates and Conditions

Effective January 1, 2018 electricity rates remain unchanged 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, 2018 the Delivery Charge has changed. The total monthly bill for a typical residential customer consuming 750 kWh per month increased by approximately $1.13 or 1.09% per month, prior to taxes and the 8% Provincial Rebate.

Business rate information can be found here.

Rates effective January 1, 2018

For more information read our Residential Rates Brochure.

Residential Rates in effect between November 1, 2017 and December 31, 2017 are also available.


Time-of-Use Pricing for Winter Period (November 1 to April 30)
Weekdays (Monday to Friday)
Off-Peak (7 pm to 7 am) Weekdays, all day weekends and holidays) $0.065/kWh
Mid-Peak (11 am to 5 pm) Weekdays $0.095/kWh
On-Peak (7 am to 11 am and  5 pm to 7pm) Weekdays $0.132/kWh


Transmission $0.0121/kWh
Hydro Ottawa Variable and Other Charges - RPP1  $0.0093/kWh
Hydro Ottawa Variable and Other Charges - Non RPP $0.0086/kWh
Hydro Ottawa Fixed and Other Charges $20.51/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


8% Provincial Rebate

See below5

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 or RPP. The OEB reviews and adjusts these rates, if required, twice a year: in the summer (May 1) and in the winter (November 1). The vast majority of Hydro Ottawa customers pay Time-of-Use rates. If you are a Tiered price customer, please visit oeb.ca for more information.
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 For residential customers including those of the former Casselman Hydro, the Debt Retirement Charge has been removed from bills as of January 1, 2016.
5 The rebate will be equal to the provincial portion of the Harmonized Sales Tax (HST) on electricity bills, representing an 8% savings.

Manage Your Account Online

Looking for online access to your account balance, payment history and electricity consumption? You can access a wealth of information about your Hydro Ottawa account.


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