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Ontario's Independent Electricity System Operator
The IESO manages Ontario's electricity system and operates the wholesale electricity market.
It forecasts the demand for electricity and ensures that there are available supplies to meet that demand.
More than half of all electricity consumed by this province is paid for at wholesale rates.
Most lower use consumers, such as homeowners and small businesses, pay the regulated rate that is revised every six months based on market and contract prices paid to generators.
Electricity Prices in Ontario
There are four different price structures for homeowners and small businesses:
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Tiered Rates
Pay the Regulated Price Plan (RPP) tiered rate set by the Ontario Energy Board.
Consumption of up to and including 600 kWh/month*:
7.8 ¢/kWh
more than 600 kWh/month:
9.1¢/kWh
* Threshold for businesses is 750 kWh/month
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Time-of-Use Rates
Pay time-of-use prices that change depending on when you use electricity.
| Weekdays |
| 7 am to 11 am |
10.4 ¢/kWh |
| 11 am to 5 pm |
12.4 ¢/kWh |
| 5 pm to 7 pm |
10.4 ¢/kWh |
| 7 pm to 7 am |
6.7 ¢/kWh |
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| Weekends |
6.7 ¢/kWh |
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Not sure which price you are paying? Click here to find out more.
TAKING CONTROL OF YOUR ELECTRICITY USE
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Public Appeals
Extreme weather or an unexpected loss of supply, can lead the IESO to call Public Appeals to reduce energy use.
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FAQs
Your questions about Ontario's electricity system answered.
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Smart Meters and Time-Of-Use Rates
Soon, all Ontario consumers will have made the switch to time-of-use (TOU) rates, where the price of electricity depends on when it is used. Learn more about TOU rates and how your smart meter works.
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Retailers
Consumers also have the option of fixing their electricity price through a retail contract.
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Other Electricity Charges
The commodity cost represents roughly half of your overall electricity charge, here are explanations of the others.
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Speakers' Bureau
Learn more about issues concerning Ontario's electricity system and how to better manage your energy
costs. Arrange for an IESO speaker or trade booth by e-mailing
Corporate Communications.
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TODAY'S PROJECTED PEAK AT
6:00 pm
GENERATOR AVAILABILITY
AT PEAK
22,725 MW
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Questions about your bill or energy efficiency? Contact your local utility for assistance.
For information about changes in the electricity sector, contact the Ministry of Energy.
To learn more about rates, licensing and retailers, contact the Ontario Energy Board.
The IESO also provides information about the market.
Toll Free: 1-888-448-7777
Tel: 905-403-6900
E-mail: customer.relations@ieso.ca
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Wholesale Prices
Retail Contracts
