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Electricity price plan comparison

Compare Ontario's Time-of-Use, Ultra-Low Overnight and Tiered electricity price plans using your own monthly usage and daily routine.

Last reviewed November 2, 2026
How we review content

Your details

kWh/month

Find this on your bill or your utility's online account. Typical Ontario home: 600–900 kWh.

0%

Dishwasher, laundry, water heating timers and similar flexible loads.

kWh/month

About 250 kWh/month for 18,000 km/year. Leave 0 if you don't have an EV.

Your estimate

Cheapest plan

Tiered

Monthly commodity cost

$84.00

on the cheapest plan

Difference vs. costliest

$40.90

≈ $491 per year

Tiered$84.00
Time-of-Use$91.01
Ultra-Low Overnight$124.90

About 63% of your use falls in Time-of-Use off-peak hours. Ultra-Low Overnight usually wins when a large share of use (often an EV or a timed water heater) happens between 11 p.m. and 7 a.m. and you can avoid weekday 4–9 p.m. use. Tiered often wins for households home all day with modest consumption.

Ready to switch? Contact your local utility — most process plan changes within one or two billing cycles. Read how the three plans work.

High-use household? Solar production lines up with daytime prices. Estimate it for your roof

Assumptions and method

Uses Ontario Regulated Price Plan commodity prices effective November 1, 2026: TOU 9.1/14.6/18.9¢; ULO 3.7/9.1/14.6/37.7¢; Tiered 11.2/13.2¢ with a 1000 kWh winter and 600 kWh summer threshold.

Your usage is spread across the day using a representative hourly profile for the routine you selected (21.7 weekdays and 8.7 weekend/holiday days per month). Up to half of 4–9 p.m. use is moved to 11 p.m.–2 a.m. when you use the slider. EV charging is assumed to occur overnight.

Results show the commodity (electricity) portion only. Delivery, regulatory charges and HST apply equally on all plans, and the Ontario Electricity Rebate (15.7%) is credited on the total. Your actual hourly data from your utility's Green Button download will give the most precise comparison.

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