Solar energy in Palermo, Italy
Average irradiation 4.69 kWh/m²/day · ~1369 kWh per kWp per year
Monthly solar irradiation & temperature in Palermo (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.14 | 10.3 | 52 |
| Feb | 3.03 | 10.1 | 74 |
| Mar | 4.32 | 11.9 | 105 |
| Apr | 5.57 | 14.5 | 136 |
| May | 6.78 | 18.1 | 165 |
| Jun | 7.46 | 22.7 | 181 |
| Jul | 7.48 | 26.0 | 182 |
| Aug | 6.56 | 26.4 | 160 |
| Sep | 4.94 | 23.0 | 120 |
| Oct | 3.62 | 19.6 | 88 |
| Nov | 2.46 | 15.4 | 60 |
| Dec | 1.88 | 11.8 | 46 |
Solar potential of Palermo explained
Palermo receives an average of 4.69 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 1369 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Palermo among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Palermo?
With 4.69 kWh/m²/day of average irradiation, a 1 kWp system in Palermo produces roughly 1369 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 Palermo?
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
London (2.6) · Paris (3.2) · Berlin (2.9) · Munich (3.3) · Madrid (4.8) · Barcelona (4.6) · all cities →