Estimate a billing period's electricity cost range from your kWh, an official energy price range and your fixed charges.
This estimator brackets one billing period's electricity cost. It multiplies your kWh by the lowest and by the highest energy price of the plan you pick, then adds the fixed and delivery charges you type in. Your real bill sits between the two results, and where it sits depends on when and how much you use.
Formula: low = kWh × lowest price + fixed charges; high = kWh × highest price + fixed charges.
Worked example (illustrative): 700 kWh on Ontario time-of-use from 1 November 2026, with $55 of delivery and regulatory charges taken from a past bill: low = 700 × $0.091 + $55 = $118.70; high = 700 × $0.189 + $55 = $187.30. A household that uses most of its power evenings and weekends lands near the bottom of that range.
Where the prices come from: Ontario Regulated Price Plan prices effective 1 November 2026 as posted by distributors and set by the Ontario Energy Board; BC Hydro tiered and flat energy prices as shown on bchydro.com in October 2026; Alberta Rate of Last Resort for 1 January 2025 to 31 December 2026 as listed by the Utilities Consumer Advocate; Hydro-Québec Rate D first-block and second-block prices from 1 April 2026 as approved by the Régie de l'énergie (decision D-2026-038; the 46.154¢ daily access charge goes in the fixed field). Each excludes delivery, riders, rebates and taxes, which is why you add those yourself.
Limits: delivery charges often include a per-kWh part as well as a fixed part; if so, add the per-kWh part to both prices. The tool does not apply the Ontario Electricity Rebate, GST/HST or PST. Retailer contract prices are not listed: enter them under My own prices. See estimate a monthly electricity bill from kWh for the full method.
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