Solar panels in Ontario
Solar finally makes arithmetic sense in Ontario, helped by a rebate of up to $10,000. Here is the real installed cost, how net metering pays you back, and the roofs it does not suit.
Quick answer
A residential solar system in Ontario costs roughly $2.50 to $3.50 per watt installed, so a typical 8 kW array runs $20,000 to $28,000 before incentives. The Home Renovation Savings Program offers up to $10,000 for solar panels and battery storage. With net metering, most systems pay back in 9 to 14 years against a 25-year panel warranty.
$2.50 to $3.50
Per watt installed
$20k to $28k
Typical 8 kW system
Up to $10,000
Solar + battery rebate
9 to 14 yrs
Typical payback
How much do solar panels cost in Ontario?
Solar is priced per watt of installed capacity, which makes systems easy to compare once you know the number. In Ontario in 2026 that number sits around $2.50 to $3.50 per watt for a straightforward residential roof, falling toward the bottom of the range on larger arrays because the fixed costs spread further.
| System size | Typical installed cost |
|---|---|
| 5 kW (small home, low usage) | $13,000 to $18,000 |
| 8 kW (typical detached home) | $20,000 to $28,000 |
| 12 kW (large home or EV charging) | $30,000 to $42,000 |
| Battery storage, 10 to 13 kWh | $12,000 to $20,000 |
| Roof reinforcement or rework, if needed | $2,000 to $8,000 |
Sizing follows your consumption, not your roof area. A household using 9,000 kWh a year needs roughly 8 kW in southern Ontario. Oversizing past your own usage rarely pays under net metering, because you are credited at retail rates only against what you consume.
What solar rebates can you get in Ontario?
Under the provincial Home Renovation Savings Program, solar panels and battery storage earn up to $10,000, and it sits in the single-upgrade stream, so no home energy assessment is required. On a typical 8 kW system that is roughly a third of the capital cost, which is what has moved solar from marginal to sensible for a lot of Ontario homeowners.
The program is confirmed through November 2026 but can close earlier if its budget runs out. Confirm the current terms on the Save on Energy site before you sign anything, and treat any installer who is vague about the rebate mechanics as a warning sign.
How net metering actually works
Ontario runs on net metering, not a feed-in tariff. The distinction matters:
- Your meter runs backwards when you generate more than you use. You are credited at the retail rate, which is generous compared to wholesale.
- Credits carry forward for up to 12 months, which lets a summer surplus pay for a winter deficit. This is why solar works here despite the seasonal swing.
- Credits that go unused after 12 months expire. You are not paid out in cash.
That last point is why sizing to your own consumption matters. A system built to generate far more than you will ever use is donating electricity to your utility.
Solar does not power your house in a blackout. Grid-tied inverters shut down when the
grid goes down, for the safety of line workers. If backup power is the goal, that is a battery conversation,
and the battery is what costs money.
Solar, done in the right order
Roof, envelope, then panels, sized to your actual usage. We handle all of it. Get a quote.
Talk to ZeybekHow long does solar take to pay back?
Take an 8 kW system at $24,000, less a $10,000 rebate, so $14,000 net. In southern Ontario that array generates roughly 9,500 kWh a year. At current retail rates, that offsets somewhere in the region of $1,200 to $1,600 a year, which puts simple payback around 9 to 12 years.
Against a 25-year panel warranty, that leaves a long tail of effectively free electricity. Two caveats worth stating plainly:
- You will likely replace the inverter once in that window, at $2,000 to $4,000. Any payback figure that ignores this is selling you something.
- Panels degrade slowly, roughly half a percent a year, so year 25 produces around 88 percent of year one.
Payback stretches if your consumption is low, if the roof faces east and west rather than south, or if shading is significant. It shortens with a heat pump or an EV, because you are displacing more purchased electricity. Solar and heat pumps genuinely reinforce each other.
Is your roof suitable?
The good candidates and the bad ones are fairly easy to separate:
- Best: south-facing, pitched between 25 and 40 degrees, unshaded from 9am to 3pm, with a roof that has 20 or more years left in it.
- Workable: east and west facing, which lose roughly 15 to 20 percent against south. Flat roofs, using ballasted racking at an angle.
- Poor: heavily shaded by mature trees, north-facing, or structurally marginal.
Reroof first if the roof is near end of life. Removing and reinstalling an array to replace shingles underneath costs thousands and is entirely avoidable. If your roof is past 15 years, read our roof replacement guide before you price panels. We handle both, which means the sequencing is one conversation rather than two trades blaming each other. See our solar and energy work.
Frequently asked questions
How much do solar panels cost in Ontario?
Roughly $2.50 to $3.50 per watt installed. A typical 8 kW system for a detached home runs $20,000 to $28,000 before incentives, and the Home Renovation Savings Program offers up to $10,000 back.
Is there a solar rebate in Ontario in 2026?
Yes. The Home Renovation Savings Program offers up to $10,000 for solar panels and battery storage, in the single-upgrade stream, so no home energy assessment is required. The program is confirmed through November 2026 but can close earlier.
How long do solar panels take to pay for themselves in Ontario?
Typically 9 to 14 years after the rebate, against a 25-year panel warranty. Payback is faster if you have a heat pump or an EV, and slower on east or west facing and shaded roofs. Budget for one inverter replacement at $2,000 to $4,000 in that window.
Do solar panels work during a power outage?
Not on their own. Grid-tied inverters shut down in an outage to protect line workers. You need battery storage and a transfer switch for backup power.
Should I replace my roof before installing solar?
If the roof has less than 15 years left, yes. Removing and reinstalling an array later to reshingle underneath costs thousands and is easily avoided by sequencing the work correctly.
Zeybek Construction
General contractors, Ontario
Written by the Zeybek team from more than two decades of renovation and construction work across Ontario, from Toronto and the GTA to Kitchener, Waterloo, and beyond. We build kitchens, bathrooms, whole homes, additions, and commercial spaces, and we handle permits and inspections as part of the job.
Related guides
Last updated July 16, 2026. This guide is general information for Ontario homeowners and is not a substitute for a site-specific quote or municipal advice. Costs, rebate programs, and rules vary by municipality and change over time.
Solar, done in the right order
Roof, envelope, then panels, sized to your actual usage. We handle all of it. Get a quote.