Solar energy in Sfax, Tunisia
Average irradiation 5.13 kWh/m²/day · ~1498 kWh per kWp per year
Monthly solar irradiation & temperature in Sfax (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.95 | 12.5 | 72 |
| Feb | 3.84 | 12.7 | 93 |
| Mar | 4.94 | 14.9 | 120 |
| Apr | 5.96 | 17.6 | 145 |
| May | 6.92 | 20.8 | 168 |
| Jun | 7.43 | 24.5 | 181 |
| Jul | 7.59 | 27.7 | 185 |
| Aug | 6.71 | 28.4 | 163 |
| Sep | 5.30 | 26.4 | 129 |
| Oct | 4.13 | 23.3 | 101 |
| Nov | 3.14 | 18.5 | 76 |
| Dec | 2.65 | 14.3 | 64 |
Solar potential of Sfax explained
Sfax receives an average of 5.13 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 1498 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Sfax among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Sfax?
With 5.13 kWh/m²/day of average irradiation, a 1 kWp system in Sfax produces roughly 1498 kWh per year. That is an excellent solar resource — payback periods are typically among the shortest worldwide.
How much electricity would a 5 kW system produce in Sfax?
Approximately 7,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
Compare with nearby cities
Cairo (5.9) · Casablanca (5.3) · Lagos (4.6) · Nairobi (5.5) · Johannesburg (5.5) · Cape Town (5.3) · all cities →