Solar energy in Stuttgart, Germany
Average irradiation 3.24 kWh/m²/day · ~946 kWh per kWp per year
Monthly solar irradiation & temperature in Stuttgart (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 1.01 | -0.1 | 25 |
| Feb | 1.77 | 0.8 | 43 |
| Mar | 3.01 | 4.6 | 73 |
| Apr | 4.34 | 9.3 | 106 |
| May | 5.06 | 13.6 | 123 |
| Jun | 5.73 | 17.8 | 139 |
| Jul | 5.55 | 20.0 | 135 |
| Aug | 4.74 | 19.6 | 115 |
| Sep | 3.55 | 14.9 | 86 |
| Oct | 2.17 | 10.0 | 53 |
| Nov | 1.17 | 4.7 | 29 |
| Dec | 0.81 | 0.9 | 20 |
Solar potential of Stuttgart explained
Stuttgart receives an average of 3.24 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 946 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 Stuttgart?
With 3.24 kWh/m²/day of average irradiation, a 1 kWp system in Stuttgart produces roughly 946 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 Stuttgart?
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
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