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Break-down of your bill.
Hydro Ottawa is responsible for the safe, reliable delivery of electricity to more than 353,000 customers in the City of Ottawa and the village of Casselman. Hydro Ottawa is committed to delivering value to its customers by providing safe and reliable service.
The Delivery Charge covers the costs of delivering electricity from generating stations across Ontario and then to your home or business. It includes the costs to build and maintain transmission and distribution lines, towers and poles and to operate provincial and local electricity systems. Hydro Ottawa’s distribution charge, which is included in the delivery charge, represents only a small portion of your bill.
We pass on the remaining charges, without mark-up, to the other companies responsible for generating electricity, transmitting it, and to regulators and the provincial government. A portion of these charges are fixed and do not change from month to month. The rest are variable and increase or decrease depending on the amount of electricity that you use. Please see the chart below for a break-down of these charges.*
Breakdown of charges
Effective January 1, 2023
Electricity Generation Charge
Paid to the generators of hydroelectric, nuclear, fossil-fueled, wind, biomass, biogas and solar electricity
Hydro Ottawa Fixed & Other Delivery Charges
A portion retained by Hydro Ottawa.
Paid to the transmitters who operate and maintain the province-wide transmission system.
Line Loss Adjustment
Paid to the Independent Electricity System Operator (IESO).
Paid to the IESO and the Ministry of Energy for administering the system and funding programs
Harmonized Sales Tax (of 13%)
Paid to Federal and Provincial Government
For the average Standard Supply Service residential customer on Time-of-Use (TOU) pricing using 750 kWh per month. The percentages do not include the Ontario Electricity Rebate.
Ontario's System-Wide Electricity Supply Mix: 2022 Data
In Ontario, electricity supply comes from diverse sources. The system-wide supply mix is the combination of power sources used to generate the electricity consumed in Ontario.
The below graphic discloses the system-wide electricity supply mix data for 2021, which was published by the Ontario Energy Board (OEB) on March 31, 2023.