Solar energy in Vienna, Austria
Average irradiation 3.29 kWh/m²/day · ~961 kWh per kWp per year
Monthly solar irradiation & temperature in Vienna (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.95 | -1.6 | 23 |
| Feb | 1.76 | -0.1 | 43 |
| Mar | 2.99 | 4.2 | 73 |
| Apr | 4.56 | 9.8 | 111 |
| May | 5.29 | 14.4 | 129 |
| Jun | 5.75 | 18.8 | 140 |
| Jul | 5.64 | 20.9 | 137 |
| Aug | 4.94 | 20.4 | 120 |
| Sep | 3.56 | 15.1 | 87 |
| Oct | 2.13 | 9.6 | 52 |
| Nov | 1.09 | 4.4 | 27 |
| Dec | 0.77 | -0.4 | 19 |
Solar potential of Vienna explained
Vienna receives an average of 3.29 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 961 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. While winters are dark, modern panel prices mean solar can still be economical — self-consumption value matters more than raw sunshine here.
Frequently asked questions
Is solar worth it in Vienna?
With 3.29 kWh/m²/day of average irradiation, a 1 kWp system in Vienna produces roughly 961 kWh per year. That is a moderate solar resource; economics depend more on local electricity prices and incentives, which our AI planner can research for you.
How much electricity would a 5 kW system produce in Vienna?
Approximately 5,000 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 →