Electricity pricing in Ontario is set to change as the province moves from winter to summer time-of-use rate periods. This change affects the hours during which electricity is most expensive and when it is cheaper to use.From May 1, the time-of-use pricing system will switch to the summer schedule. On the same date, new electricity prices will also come into effect, although the updated rates have not yet been officially announced.
Time-of-Use Period (Nov 1, 2025 – Oct 31, 2026)
The current time-of-use pricing structure applies for the full period from November 1, 2025, to October 31, 2026. These time bands determine electricity costs based on when power is used during the day.
Who Sets Electricity Rates in Ontario
Electricity rates in Ontario are regulated by the Ontario Energy Board (OEB). The OEB is responsible for reviewing and setting prices to reflect market conditions and ensure fair pricing for consumers.
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Time-of-Use Schedule Comparison
| Season | Off-Peak Hours | Mid-Peak Hours | On-Peak Hours |
|---|---|---|---|
| Winter (Nov 1 – Apr 30) | 7 PM – 7 AM | 11 AM – 5 PM | 7 AM – 11 AM, 5 PM – 7 PM |
| Summer (May 1 – Oct 31) | 7 PM – 7 AM | 7 AM – 11 AM, 5 PM – 7 PM | 11 AM – 5 PM |
What This Change Means
With the summer schedule in place, the most expensive electricity hours will shift to midday when demand is higher due to increased use of cooling systems. Consumers can reduce their electricity costs by using major appliances during off-peak hours.
