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Solar panels in Toronto, ON

Roofs in Toronto get about 1,366 hours of usable sunlight a year — less than 86% of the cities we've measured. Here's what that means in cost, savings and payback, using real rooftop data rather than a national average.

1,366Sun hours / yr
24Panels typical
CA$27,360Cost after credit
16.5 yrPayback
Be careful in Toronto. At a 16.5-year payback, solar here is a long-horizon decision, mostly because electricity is relatively cheap (15.2¢/kWh). It can still make sense if rates rise or you have local incentives — but check the numbers hard before signing.

Check your specific roof in Toronto → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.

What a typical Toronto solar system costs

A 24-panel system (9.6 kW) is about right for an average Toronto home using 10,800 kWh a year. It would produce roughly 11,147 kWh annually and offset 100% of that usage.

Estimated economics by system size in Toronto, at 15.2¢/kWh
SystemSizekWh/yr Net costSaves/yrPayback
8 panels3.2 kW 3,716CA$9,120 CA$565 16.1 yrs
12 panels4.8 kW 5,573CA$13,680 CA$847 16.1 yrs
16 panels6.4 kW 7,431CA$18,240 CA$1,130 16.1 yrs
20 panels8 kW 9,289CA$22,800 CA$1,412 16.1 yrs
26 panels10.4 kW 12,075CA$29,640 CA$1,690 17.5 yrs

Notice that payback barely improves as systems get bigger, and eventually gets worse. That's because you can only save money on electricity you were going to buy anyway. Once a system covers your usage, extra panels mostly generate exports at a much lower rate.

Why Toronto gets 1,366 sun hours

That figure comes from Google's analysis of real rooftops across Toronto — it already accounts for shading from trees, chimneys and neighbouring buildings, which is why it's lower than the raw "hours of daylight" figures you'll see elsewhere. An unusually open, unshaded roof in Toronto reaches about 1,514 hours, roughly 11% better than typical.

The numbers behind this page

Typical usable sunlight1,366 hrs/yr
Unshaded roof1,514 hrs/yr
Electricity rate (Ontario avg)15.2¢/kWh
Installed cost assumed$2.85/W
Panel size assumed400 W
Typical household usage10,800 kWh/yr
Power used as generated34%
Paid for exported powerfull retail (net metering)
Rooftops sampled here9
Google imagery from2021

Nearby cities

Solar panels in MississaugaOntarioSolar panels in HamiltonOntarioSolar panels in BuffaloNew YorkSolar panels in KitchenerOntarioSolar panels in EriePennsylvaniaSolar panels in RochesterNew York

See all of Ontario → statewide sunlight, rates, incentives and every city we've measured.

Toronto solar questions

How many solar panels do I need in Toronto?

About 24 panels for an average home. Toronto roofs get 1,366 usable sun hours a year, so each 400W panel produces roughly 464 kWh annually.

Is solar worth it in Toronto?

At 15.2¢/kWh and 1,366 sun hours, a typical system pays for itself in about 16.5 years and returns roughly CA$14,009 over 25 years. That is slower than the national average, so compare quotes carefully.

How much do solar panels cost in Toronto?

A 9.6 kW system costs about CA$27,360 before incentives . Prices vary by installer, roof complexity and equipment.

Worth reading before you buy

What your utility pays for exportsChanges payback more than any equipment choice 12 questions to ask before signingIdentical systems vary 30–40% in price South or west facing roof?Guide Is my roof any good for solar?Guide

Estimates only, generated 2026-08-22 from Google Solar API rooftop samples and average Ontario electricity rates. Not a quote and not financial advice. Your roof, usage, utility plan and local incentives will change these numbers — get real quotes before buying.