Business Rates

Notice to our customers — As of January 1, 2024, the total bill for a typical small business customer consuming 2,000 kWh per month and having a billing demand of less than 50 kW increased by approximately $13.64 or 3.85% per month (calculated before tax and the Ontario Electricity Rebate).

Rates effective January 1, 2024

November 1, 2023 to December 31, 2023 business rates available here.

Demand less than 50 kilowatts

Electricity1

Time-of-Use Pricing (TOU) - Effective November 1, 2023
TOU Price PeriodsWinter (Nov. 1 to April 30)Summer (May 1 - Oct. 31)TOU Prices

Off-Peak

Weekdays 7 p.m. to 7 a.m.
Weekends and holidays all day

Weekdays 7 p.m. to 7 a.m.
Weekends and holidays all day

8.7 ¢/kWh

Mid-Peak

Weekdays 11 a.m. to 5 p.m.

Weekdays 7 a.m. to 11 a.m. and 5 p.m. to 7 p.m.

12.2 ¢/kWh

On-Peak

Weekdays 7 a.m. to 11 a.m. and 5 p.m. to 7 p.m.

Weekdays 11 a.m. to 5 p.m.

18.2 ¢/kWh

Ultra-Low Overnight Pricing (ULO) - Effective November 1, 2023
ULO price periods All year ULO Prices

Ultra-low overnight

Everyday 11 p.m. to 7 a.m.

2.8 ¢/kWh

Weekend off-peak

Weekends and holidays 7 a.m. to 11 p.m.

8.7 ¢/kWh

Mid-peak

Weekdays 7 a.m. to 4 p.m. and 9 p.m. to 11 p.m.

12.2 ¢/kWh

On-peak

Weekdays 4 p.m. to 9 p.m.

28.6 ¢/kWh

Weekends and Holidays 

No matter which season, on weekends and holidays the following rates are in effect. View the Holiday Schedule for Time-of-Use and Ultra-Low Overnight.

This means:

  • For TOU - Off-Peak
  • For ULO - Weekend Off-Peak and Ultra-Low Overnight

Note: If a holiday falls on a weekend, the next weekday (that is not also a holiday) will have the holiday prices in effect all day.

Tiered Pricing - Effective November 1, 2023
Tier ThresholdsWinter (Nov. 1 to April 30)Summer (May 1 to Oct. 31)Tiered Prices

Tier 1

Residential – first 1,000 kWh/month

Small business – first 750 kWh/month

Residential – first 600 kWh/month

Small business – first 750 kWh/month

10.3 ¢/kWh

Tier 2

Residential – for electricity used above 1,000 kWh/month

Small business – for electricity used above 750 kWh/month

Residential – for electricity used above 600 kWh/month

Small business – for electricity used above 750 kWh/month

12.5 ¢/kWh

Delivery 

 
Transmission$0.0164/kWh
Hydro Ottawa Variable and Other Charges – RPP$0.03390/kWh
Hydro Ottawa Variable and Other Charges – Non RPP$0.03290/kWh
Hydro Ottawa Fixed Charge$23.15/month
Smart Meter Entity Charge$0.42/month
Low Voltage Services Charge$0.00005/kWh
Delivery Line Loss ChargeSee below for calculation2

Regulatory

$0.0059/kWh3

Ontario Electricity Rebate

19.3%4

50 kW to less than 1,500 kW Billing Demand

Electricity - Wholesale Market Rates

Delivery

 
Transmission Network$4.2259/kW
Transmission Connection$2.4718/kW
Hydro Ottawa Variable and Other Charges$7.6010/kW5
Rate Rider for Disposition of Global Adjustment - Non RPP Class B Customers-$0.0010/kWh6
Rate Rider for Disposition of Capacity Based Recovery - Class B Customers-$0.0001/kWh6
Hydro Ottawa Fixed Charge$200.00/month
Low Voltage Services Charge$0.02033/kW
Delivery Line Loss ChargeSee below for calculation2

Regulatory

$0.0059/kWh3

1,500 kW to less than 5,000 kW Billing Demand

Electricity - Wholesale Market Rates

Delivery

 
Transmission Network$4.3877/kW
Transmission Connection$2.6418/kW
Hydro Ottawa Variable and Other Charges$7.7643/kW5
Rate Rider for Disposition of Global Adjustment – Class B Customers$-0.0010/kWh6
Rate Rider for Disposition of Capacity Based Recovery - Class B Customers$-0.0001/kWh6
Hydro Ottawa Fixed Charge$4,193.93/month
Low Voltage Services Charge$0.02173/kW
Delivery Line Loss ChargeSee below for calculation2

Regulatory

$0.0059/kWh3

5,000 kW or more Billing Demand - Large Consumer

Electricity - Wholesale Market Rates

Delivery

 
Transmission Network$4.8641/kW
Transmission Connection$2.9749/kW
Hydro Ottawa Variable and Other Charges$8.0153/kW
Rate Rider for Disposition of Global Adjustment – Class B Customers$-0.0010/kWh6
Rate Rider for Disposition of Capacity Based Recovery -  Class B Customers$-0.0001/kWh6
Hydro Ottawa Fixed Charge$15,231.32/month
Low Voltage Services Charge$0.02447/kW
Delivery Line Loss ChargeSee below for calculation2

Regulatory

$0.0059/kWh3

 

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 (RPP). The OEB reviews and adjusts these rates as required. RPP rates are based on an estimate of how much it will cost to supply RPP customers with the electricity that they are expected to use. The OEB monitors and will adjust future RPP rates to reflect the difference between the actual cost and their estimated cost. The next RPP rate adjustment is scheduled to take place on November 1, 2024.
  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. Class A customers are charged the Capacity Based Recovery (CBR) based on their peak demand factor (PDF). The CBR is part of the Regulatory line and is a rate of $0.0004/kWh. Class A Customers Regulatory rate without CBR is $0.0055/kWh.
  4. The Ontario government’s Ontario Electricity Rebate (OER) provides eligible consumers with a 19.3% rebate on their electricity bill. The OER is a pre-tax credit that appears as a separate line on your Hydro Ottawa bill.
  5. Wholesale Market Participants (WMP) purchase electricity through the  Independent Electricity System Operator (IESO). As a result, specific rates do not apply to WMP as they are settled directly with the IESO. WMP are not charged the Rate Riders related to the Disposition of Deferral/Variance Accounts of $1.0035/kW. Hydro Ottawa’s Variable and Other Charges for WMP Customers with 50 kW to less than 1,500 kW Billing Demand is $6.5975/kW.
  6. The rate rider for the disposition of Global Adjustment  is only applicable to non-RPP Class B customers. The rate rider for  Capacity Based Recovery is only applicable to Class B customers. They do not apply to WMP customers, customers that transitioned between Class A and Class B during the variance account accumulation period, or to customers who were in Class A for the entire period. Customers who transitioned from Class A to Class B are to be charged or refunded their share of the Global Adjustment and Capacity Based Recovery variance disposed through customer specific billing adjustments. These rate riders are to be consistently applied for the entire period to the sunset date of the rate rider. In addition, the Global Adjustment rate rider applies to all new non-RPP Class B customers, and the Capacity Based Recovery rate rider applies to all new Class B customers. 

Hydro Ottawa Limited Tariff of Rates and Charges effective January 1, 2024.

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