Solar energy in Altona, Germany
Average irradiation 2.87 kWh/m²/day · ~838 kWh per kWp per year
Monthly solar irradiation & temperature in Altona (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.59 | 0.5 | 14 |
| Feb | 1.27 | 1.1 | 31 |
| Mar | 2.52 | 3.9 | 61 |
| Apr | 4.17 | 8.6 | 101 |
| May | 5.11 | 12.8 | 124 |
| Jun | 5.34 | 16.1 | 130 |
| Jul | 5.12 | 18.2 | 125 |
| Aug | 4.28 | 17.9 | 104 |
| Sep | 3.09 | 14.3 | 75 |
| Oct | 1.72 | 9.7 | 42 |
| Nov | 0.75 | 5.1 | 18 |
| Dec | 0.45 | 1.9 | 11 |
Solar potential of Altona explained
Altona receives an average of 2.87 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 838 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 Altona?
With 2.87 kWh/m²/day of average irradiation, a 1 kWp system in Altona produces roughly 838 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 Altona?
Approximately 4,000 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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