Solar panels in Sault Ste. Marie, ON
Roofs in Sault Ste. Marie get about 1,412 hours of usable sunlight a year — less than 78% 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.
Check your specific roof in Sault Ste. Marie → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Sault Ste. Marie solar system costs
A 23-panel system (9.2 kW) is about right for an average Sault Ste. Marie home using 10,800 kWh a year. It would produce roughly 11,042 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 3,841 | CA$9,120 | CA$584 | 15.6 yrs |
| 12 panels | 4.8 kW | 5,761 | CA$13,680 | CA$876 | 15.6 yrs |
| 16 panels | 6.4 kW | 7,681 | CA$18,240 | CA$1,168 | 15.6 yrs |
| 20 panels | 8 kW | 9,602 | CA$22,800 | CA$1,459 | 15.6 yrs |
| 26 panels | 10.4 kW | 12,482 | CA$29,640 | CA$1,706 | 17.4 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 Sault Ste. Marie gets 1,412 sun hours
That figure comes from Google's analysis of real rooftops across Sault Ste. Marie — 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 Sault Ste. Marie reaches about 1,524 hours, roughly 8% better than typical.
The numbers behind this page
| Typical usable sunlight | 1,412 hrs/yr |
|---|---|
| Unshaded roof | 1,524 hrs/yr |
| Electricity rate (Ontario avg) | 15.2¢/kWh |
| Installed cost assumed | $2.85/W |
| Panel size assumed | 400 W |
| Typical household usage | 10,800 kWh/yr |
| Power used as generated | 34% |
| Paid for exported power | full retail (net metering) |
| Rooftops sampled here | 6 |
| Google imagery from | 2017 |
When Sault Ste. Marie actually produces
Annual totals hide the thing that catches people out: 39% of Sault Ste. Marie's yearly sunlight arrives in May–July, and just 11% across November–January.
| Month | Sun hrs | Share of year |
|---|---|---|
| Jan | 51 | |
| Feb | 76 | |
| Mar | 111 | |
| Apr | 149 | |
| May | 178 | |
| Jun | 190 | |
| Jul | 184 | |
| Aug | 160 | |
| Sep | 125 | |
| Oct | 86 | |
| Nov | 57 | |
| Dec | 45 |
That is a severe seasonal swing — Sault Ste. Marie produces roughly 4.3× as much in Jun as in Dec. A system sized to cover your annual usage will overproduce badly in summer and fall well short in winter, so how your utility credits exported power matters more here than in most places.
The annual total is measured from Google's rooftop imagery. Its split across months is calculated from solar geometry at Sault Ste. Marie's latitude, not separately measured, so treat the monthly figures as the shape of a typical year rather than a forecast.
How Sault Ste. Marie compares to the other 673 cities
| Measure | Sault Ste. Marie | Rank of 673 |
|---|---|---|
| Usable sunlight | 1,412 hrs | 526th |
| Sunlight lost to shade | 7% | 177th most |
| Median roof size | 218 m² | 298th largest |
| Electricity rate | 15.2¢ | 346th highest |
| Payback | 15.9 yrs | 629th fastest |
| Grid carbon | 151 kg/MWh | 668th dirtiest |
What actually stands out about Sault Ste. Marie:
- The case here is financial, not environmental. Sault Ste. Marie's grid is already clean at 151 kg CO₂ per MWh, so the carbon saving from solar is modest. Judge this one on payback.
- Older imagery. Google's aerial capture of Sault Ste. Marie dates from 2017. Tree growth and new construction since then are not reflected.
Cities with almost the same sunlight
These are the closest matches to Sault Ste. Marie's 1,412 usable sun hours from other states and provinces. Same sunlight, different electricity prices — which is usually what decides whether solar is worth it.
| City | Sun hrs | Rate | Payback |
|---|---|---|---|
| Louisville, KY | 1,413 | 12.2¢ | 13.8 yrs |
| Fredericton, NB | 1,413 | 13.4¢ | 18 yrs |
| Bangor, ME | 1,411 | 24.8¢ | 6.8 yrs |
| Kokomo, IN | 1,411 | 15.3¢ | 11 yrs |
Nearby cities
See all of Ontario → statewide sunlight, rates, incentives and every city we've measured.
Sault Ste. Marie solar questions
How many solar panels do I need in Sault Ste. Marie?
About 23 panels for an average home using 10,800 kWh a year. Sault Ste. Marie roofs get 1,412 usable sun hours, so each 400W panel produces roughly 480 kWh annually. A typical Sault Ste. Marie roof fits about 88 panels, so roof space is unlikely to be your limit.
Is solar worth it in Sault Ste. Marie?
At 15.2¢/kWh and 1,412 sun hours, a typical system pays for itself in about 15.9 years and returns roughly CA$15,050 over a 25-year panel life. That is slower than average, so compare several quotes before committing. Exported power earns full retail credit here.
How much do solar panels cost in Sault Ste. Marie?
A 9.2 kW system costs about CA$26,220 before incentives. That works out near $2.85 per watt installed. Roof pitch, shading, electrical panel upgrades and equipment choice move the price most, which is why quotes for the same house can differ by thousands.
Worth reading before you buy
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.