Solar energy in Mannheim, Germany
Average irradiation 3.17 kWh/m²/day · ~926 kWh per kWp per year
Monthly solar irradiation & temperature in Mannheim (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.87 | 0.2 | 21 |
| Feb | 1.64 | 1.2 | 40 |
| Mar | 2.86 | 4.9 | 70 |
| Apr | 4.42 | 9.7 | 107 |
| May | 5.15 | 14.0 | 125 |
| Jun | 5.68 | 18.3 | 138 |
| Jul | 5.51 | 20.6 | 134 |
| Aug | 4.67 | 20.0 | 114 |
| Sep | 3.48 | 15.3 | 85 |
| Oct | 2.02 | 10.2 | 49 |
| Nov | 1.01 | 5.0 | 25 |
| Dec | 0.68 | 1.2 | 17 |
Solar potential of Mannheim explained
Mannheim receives an average of 3.17 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 926 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 Mannheim?
With 3.17 kWh/m²/day of average irradiation, a 1 kWp system in Mannheim produces roughly 926 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 Mannheim?
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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