Solar Panel Calculator for Halifax, NS
Estimate the cost, savings and payback of solar panels in Halifax, NS, using local NREL sunshine data, provincial prices and the local electricity rate.
Your result
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Halifax gets about 4.13 peak sun hours a day on a south-facing roof, so each kW of panels makes about 1,194 kWh a year. That ranks #104 of the 111 cities on this site. Output peaks in Jul and is lowest in Dec.
Sunshine in Halifax by month
What an 8 kW system makes in Halifax
| Month | Sun hours a day | Output | Bill savings |
|---|---|---|---|
| Jan | 2.17 | 456 kWh | C$93 |
| Feb | 3.36 | 640 kWh | C$131 |
| Mar | 4.47 | 912 kWh | C$187 |
| Apr | 4.98 | 960 kWh | C$197 |
| May | 5.44 | 1,056 kWh | C$216 |
| Jun | 5.58 | 1,024 kWh | C$210 |
| Jul | 5.72 | 1,064 kWh | C$218 |
| Aug | 5.66 | 1,064 kWh | C$218 |
| Sep | 4.70 | 872 kWh | C$179 |
| Oct | 3.53 | 704 kWh | C$144 |
| Nov | 2.17 | 432 kWh | C$88 |
| Dec | 1.78 | 376 kWh | C$77 |
| Year | 4.13 | 9,552 kWh | C$1,956 |
Savings at 20.48¢ per kWh, with every kWh credited at that price.
Cost and payback by system size
At C$2.94 per watt, the midpoint of the Nova Scotia range, before incentives.
| System | Cost | Year 1 savings | Payback | 25-yr gain |
|---|---|---|---|---|
| 4 kW | C$11,760 | C$978 | 12.4 yrs | C$11,281 |
| 6 kW | C$17,640 | C$1,467 | 12.4 yrs | C$16,921 |
| 8 kW | C$23,520 | C$1,956 | 12.4 yrs | C$22,561 |
| 10 kW | C$29,400 | C$2,445 | 12.4 yrs | C$28,202 |
| 12 kW | C$35,280 | C$2,934 | 12.4 yrs | C$33,842 |
How many panels you need in Halifax
| Monthly use | System | 400 W panels |
|---|---|---|
| 500 kWh | 5.03 kW | 13 |
| 750 kWh | 7.54 kW | 19 |
| 1,000 kWh | 10.05 kW | 26 |
| 1,500 kWh | 15.08 kW | 38 |
| 2,000 kWh | 20.10 kW | 51 |
Covering 100% of a year's use at 1,194 kWh per kW.
Common questions
Is solar worth it in Halifax?
At local averages an 8 kW system costs about C$23,520 before incentives, saves about C$1,956 in its first year and pays back in about 12.4 years.
How many peak sun hours does Halifax get?
About 4.13 a day over the year on a south-facing roof at 20°, from 1.8 in Dec to 5.7 in Jul, according to NREL's PVWatts model.
How much does a 1 kW solar system produce in Halifax?
About 1,194 kWh a year, or 100 kWh a month on average.
Are there solar incentives in Canada?
Programs change often and differ by province and utility. Check with your provincial energy department and your utility before you buy.
Sources
- NREL PVWatts V8 API (south-facing, 20° tilt, 14% losses, typical-year weather): https://developer.nlr.gov/docs/solar/pvwatts/v8/
- Hydro-Québec, Comparison of Electricity Prices in Major North American Cities, 2025 (1,000 kWh a month, before tax): https://www.hydroquebec.com/data/documents-donnees/pdf/comparaison-prix-2025-en.pdf
- Green Building Canada, Solar panel costs in Canada by province (2026): https://greenbuildingcanada.ca/solar-panels-cost-canada/