Business Electricity Rates (St. Thomas)

*Prices exclude the Ontario Electricity Rebate (OER) that provides eligible consumers a 23.5% rebate from the province on the subtotal of their electricity bill.

For information on selecting your rate plan, visit our Customer Choice webpage.

Small General Service < 50 kW

Rates effective November 1, 2025 

Time of Use Rates*
Time of UseRate
Off-Peak9.8 ¢/kWh
Mid-Peak15.7 ¢/kWh
On-Peak20.3 ¢/kWh
Tiered Rates*
Usage TierRate
Residential – first 600 kWh/month     
Non-residential – first 750 kWh/month
12.0 ¢/kWh
Residential – for electricity used above 600 kWh/month     
Non-residential – for electricity used above 750 kWh/month
14.2 ¢/kWh
Ultra-Low Overnight (ULO)*
ULO Price PeriodAll YearULO Prices (¢/kWh)
ULO Ultra-Low OvernightEvery day 11 p.m. - 7 a.m.3.9 ¢/kWh
ULO Weekend Off-PeakWeekends and holidays 7 a.m. - 11 p.m.9.8 ¢/kWh
ULO Mid-PeakWeekdays 7 a.m. - 4 p.m. and 9 p.m. to 11 p.m.15.7 ¢/kWh
ULO On-PeakWeekdays 4 p.m. - 9 p.m.39.1 ¢/kWh

Rates effective May 1, 2026

Delivery Charges
TypeRate or Charge
Fixed Charge$37.15
Volumetric Charge$0.0198 / kWh
Retail Transmission Network Service Rate$0.0106 / kWh
Retail Transmission Connection Service Rate$0.0073 / kWh
Regulatory Charges
TypeRate or Charge
Wholesale Market Service Rate$0.0047 / kWh
Rural or Remote Electricity Rate Protection Charge$0.0006 / kWh
Administrative Charge$0.25

The rates shown above apply to Regulated Price Plan ("RPP") customers. Non-RPP customers may be subject to a further Volumetric Charge of $0.0063/kWh related to the Global Adjustment Variance Account. For additional information visit oeb.ca.

General Service > 50 kW (50 - 4,999 kW)

Delivery Charges
TypeRate or Charge
Fixed Charge$115.01
Volumetric Charge$5.7666 / kW
Retail Transmission Network Service Rate$4.5040 / kW
Retail Transmission Connection Service Rate$3.0898 / kW
Regulatory Charges
TypeRate or Charge
Wholesale Market Service Rate$0.0047 / kWh
Rural or Remote Electricity Rate Protection Charge$0.0006 / kWh
Administrative Charge$0.25

The rates shown above apply to Regulated Price Plan ("RPP") customers. Non-RPP customers may be subject to a further Volumetric Charge of $0.0063/kWh related to the Global Adjustment Variance Account. For additional information visit oeb.ca.

Sentinel Lights

Delivery Charges
TypeRate or Charge
Sentinel Fixed Charge (per connection)$9.63
Sentinel Volumetric Charge$1.5392 / kW
Sentinel Retail Transmission Network Service Rate$3.2611 / kW
Sentinel Retail Transmission Connection Service Rate$2.2689 / kW
Regulatory Charges
TypeRate or Charge
Sentinel Wholesale Market Service Rate$0.0047 / kWh
Sentinel Rural or Remote Electricity Rate Protection Charge (RRRP)$0.0006 / kWh
Sentinel Administrative Charge$0.25

The rates shown above apply to Regulated Price Plan ("RPP") customers. Non-RPP customers may be subject to a further Volumetric Charge of $0.0063/kWh related to the Global Adjustment Variance Account. For additional information visit oeb.ca.