
Ontario Electricity Prices Are Forecast to Rise Sharply Through 2027. Here's What the OEB's Own Report Says.
Ontario wholesale electricity prices are forecast to rise 71% on average and 64% on-peak from late 2025 to late 2026, per the OEB-commissioned forecast by Power Advisory LLC. Three drivers: five nuclear units begin refurbishment in September 2026, carbon pricing on gas generation rises to $125/tonne by 2027, and natural gas prices climb 34%. The drivers, the data, and what it means for your hydro bill.



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