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Ontario Home Energy

See how much you could save with the right home energy upgrades

Ontario’s time-of-use rates mean you pay the most when your home uses the most. The right mix of solar, battery, a heat pump, or the Ultra-Low Overnight plan can cut your bill dramatically. Pick what you’d like to explore and we’ll show you the savings.

20.3¢
peak rate you pay now
3.9¢
overnight rate after
~60%
typical bill reduction

Get your personalized estimate in under a minute.

Choose your upgrade

What are you interested in?

Pick what you’d like to explore, then add a couple of quick details about your home. A Vivion Energy advisor can fine-tune this with you later.

✓
☀️
Solar
✓
🔋
Battery
✓
🌡️
Heat Pump
✓
🔋☀️
Battery + Solar
✓
🔋🌡️
Battery + Heat Pump
✓
☀️🔋🌡️
Solar + Battery + Heat Pump

A couple of details about your home

Please select your provider.
Please enter your postal code.
Next, add a few quick usage details to build your estimate.
🌡️
Your details

Tell us about your current heating costs and system age.

$
$
💡
How a heat pump saves
ℹ️ How heat pumps save energy: Modern heat pumps can cut your heating costs by roughly 60% compared with conventional systems, and provide efficient cooling in summer.
✓ Up to ~60% lower heating costs
✓ Heating and cooling in one system
✓ Quiet, efficient comfort year-round
✓ A Vivion advisor confirms your exact savings
Ontario electricity rates are set by the Ontario Energy Board. View current rates ↗
🌡️ Enter your details below for one combined savings total.
⚡
Your Energy Usage
kWh
kWh
$
80%
Enter average monthly kWh per rate period from your TOU hydro bill.
Weekdays 7am–11am & 5pm–7pm
20.3¢
kWh
Weekdays 11am–5pm
15.7¢
kWh
Weekdays 7pm–11pm + weekends
9.8¢
kWh
Every night 11pm–7am
9.8¢
kWh
$
💡
Rate Comparison
Before — Ontario TOU (OEB Nov 2025, Winter)
PeriodHoursRate
On-peakWeekdays 7–11am & 5–7pm20.3¢
Mid-peakWeekdays 11am–5pm15.7¢
Off-peak dayWeekdays 7–11pm + weekends9.8¢
Off-peak nightNightly 11pm–7am9.8¢
Blended daySimple mode14.2¢
After — ULO + battery + solar
SourceCoversRate
SolarDaytime use + charge battery1¢
Battery (ULO)Grid top-up if solar short3.9¢
ULO overnightAll overnight use3.9¢
☀️ Solar system: 5 kW (standard)
☀️ Solar output: 5 kW × 5 hrs = 25 kWh/day
🔋 Battery efficiency: 95% usable (Fox ESS)
⚠️ Hourly demand exceeds 5 kW — larger solar system recommended.
Ontario time-of-use rates are set by the Ontario Energy Board. View current rates ↗

* This calculator provides estimates only. Actual rates, terms, and eligibility are subject to credit approval. Rates may vary.