For Mid-sized and Large Businesses
Businesses with a peak demand of 50 kilowatts or more pay the wholesale price for electricity.
The wholesale price is determined by matching supply with Ontario's demand for electricity in the real-time market operated by the IESO. In Ontario, all electricity rates reflect the wholesale electricity price in some way. The wholesale price of electricity is dynamic − changing hourly based on demand and the availability of supply. Factors impacting demand include consumer behaviour, weather, time of day, day of the week, as well as economic conditions.
Businesses pay the wholesale price, also referred to as the Hourly Ontario Energy Price, in one of three ways:
- Businesses with an interval meter pay the Hourly Ontario Energy Price
- Businesses without interval meters are charged a weighted average hourly price based on consumption patterns of similar consumers in their service territory
- Businesses may choose to enter a fixed-price contract with an electricity retailer
The wholesale price is only one part of the total commodity cost for electricity. Businesses also pay the global adjustment rate on their consumption for the month.
Learn more about global adjustment and how it impacts your electricity bill.
Other charges on your electricity bill
See this sample bill for other charges that are paid by wholesale price electricity consumers.
For more energy management ideas, see IESO’s brochure: The Bottom Line on Energy Management for useful information to help your business control its energy usage and its costs, including managing the global adjustment.
Discover your energy-saving potential with Save on Energy. Save on Energy programs are powered by the IESO, and provide information and tools to invest in energy-saving techniques, projects and capabilities.
In addition to cost savings, businesses that invest in energy-efficient technology may be able to benefit financially by providing demand response in the IESO’s electricity market. Read how large companies and aggregators who represent groups of commercial energy consumers are able to participate in the IESO’s capacity auction.