Solar in Ontario
What a typical 7 kW rooftop system generates and saves in Ontario, from NRCan sun data and the local power rate. A planning estimate, not a quote.
Based on 1161 kWh per kW per year of sun in Ontario, a 13¢ per kWh rate, and $2.90 per watt installed.
In Ontario, the payback is on the long side. Ontario sits in the middle for sun and price. Time-of-use and tiered rates plus net metering shape the real savings, so treat this as a starting point.
Want to try a different system size? The full estimator lets you change the kilowatts and switch provinces. Remember this uses a provincial average; your roof, your exact rate, net metering, and any rebates will shift the numbers, so get two or three local quotes.
Ontario solar questions
Is solar worth it in Ontario?
Ontario sits in the middle for sun and price. Time-of-use and tiered rates plus net metering shape the real savings, so treat this as a starting point. A typical 7 kW system in Ontario generates about 8,127 kWh a year and saves roughly $1,057, paying back in about 19.2 years against an install cost near $20,300.
How much do solar panels cost in Ontario?
At about $2.90 per watt installed (2.40 to 3.50 is the typical Canadian range), a 7 kW system runs around $20,300 before any rebates or low-interest loans.
How much sun does Ontario get for solar?
NRCan puts Ontario's photovoltaic potential near 1161 kWh per kW of panels per year (Toronto). That is the figure behind the generation estimate; your roof's tilt and shading move it up or down.
Sources
Sun from NRCan photovoltaic potential, rate from the Canada Energy Regulator and provincial utilities, cost from 2026 Canadian guides. Last reviewed 2026-06-23. This is a planning estimate, not a quote. It uses a provincial average for sun and electricity price; your roof, shading, tilt, exact utility rate, net-metering rules, financing, and any rebates will change the result. Get two or three quotes from local installers before deciding. Figures last reviewed on the verified date.
Other provinces: Saskatchewan, Prince Edward Island, Alberta, Nova Scotia. Or see the full estimator.