Solar Panel ROI Calculator (Ontario)
Calculate your solar panel payback period, annual savings, and 25-year return based on your home's electricity usage and Ontario hydro rates.
💡 Ontario Solar Quick Facts
Is Solar Worth It in Ontario?
With Ontario electricity rates rising consistently, solar panels have become an increasingly attractive investment. The province averages 4 to 4.5 peak sun hours per day — enough to make residential solar viable across most of Ontario. System costs have dropped significantly over the past decade, and a properly sized installation now typically pays for itself in 8 to 12 years.
The primary financial mechanism for Ontario solar is net metering. When your panels produce more electricity than you consume — common on sunny summer afternoons — the excess feeds back to the grid and is credited to your hydro bill at the retail rate. This makes Ontario net metering particularly valuable compared to provinces offering lower wholesale credit rates.
The federal Canada Greener Homes Loan offers up to $40,000 interest-free for eligible home energy upgrades including solar, significantly reducing upfront costs and accelerating payback. Use this calculator to model different scenarios before getting installer quotes.
Frequently Asked Questions
An average Ontario home uses ~9,000-10,000 kWh/year. A 6-8 kW system (15-20 panels) typically covers most of this, depending on roof orientation and shading. South-facing roofs with 30-45° pitch produce optimal output.
The Canada Greener Homes Loan offers up to $40,000 interest-free for eligible solar installations. Check nrcan.gc.ca for current eligibility requirements and application status.