Solar Calculator London — 2026 Savings Estimate
London receives 2,066 sun hours/year. See how much you can save with solar panels powered by London Hydro electricity rates.
2,066
Sun Hours/Year
$168/mo
Avg Electricity Bill
London Hydro
Primary Utility
8 kW
Avg System Size
Solar Energy in London, Ontario
London is well-positioned for residential solar energy. According to Natural Resources Canada (NRCan) solar irradiance data, London receives 2,066 sun hours per year. With an average monthly electricity bill of $168 from London Hydro, homeowners can see significant savings by going solar.
A typical 8 kW solar system in London produces approximately 1,400 kWh per year, enough to offset a significant portion of average household electricity consumption. You can verify solar potential for your specific address using the NRCan Photovoltaic Potential Map.
The primary utility in London is London Hydro, serving the majority of residential customers. Ontario's time-of-use pricing means solar savings vary by time of day, with peak period offsets providing the highest value. Rates are set by the Ontario Energy Board (OEB).
With the federal 30% Clean Technology Investment Tax Credit and provincial incentives, solar panel payback periods in London are now 10 years on average, meaning your system generates free electricity for 15+ additional years.
Electricity Rates in London
Learn more about connecting solar with your utility: Hydro One Solar Connection Guide
Solar Incentives Available in London
Federal: 30% Clean Technology ITC
All London homeowners qualify for the federal 30% Investment Tax Credit on solar installations. On a $27,200 system, this saves approximately $8,160.
Ontario Zero-Export Solar Incentive
$100 per kW of solar capacity, up to maximum of $5,000
Ontario Zero-Export Battery Incentive
$300 per kWh of battery storage, up to maximum of $5,000
How Much Can You Save With Solar in London?
Estimates based on 8 kW system, 2066 sun hours/year, and current London Hydro rates. Your actual savings may vary based on roof orientation, shading, and consumption patterns.
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Solar Calculators for Nearby Ontario Cities
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Related Resources
Solar in Ontario
Complete 2026 solar guide for Ontario.
Learn moreHydro One Solar Guide
How to connect solar with Hydro One.
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Current pricing by province.
Learn moreSolar Rebates & Incentives
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Learn moreFree Solar Estimator
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Learn moreData Sources & References for London Solar
- • NRCan Solar Resource Data — Sun hours and solar irradiance for London
- • NRCan Photovoltaic Potential Maps — Address-level solar output estimates
- • Government of Canada: Clean Technology ITC — Federal 30% solar tax credit details
- • Ontario Energy Board (OEB) — Current TOU and tiered electricity rates
- • Electrical Safety Authority (ESA) — Contractor licensing and inspection requirements
- • Open Canada: Solar Radiation Data — Annual solar radiation dataset
— Data sources: NRCan, London Hydro, Government of Canada
London, Ontario, Canada (42.98°N, 81.25°W)