Solar energy in Warsaw, Poland
Average irradiation 2.97 kWh/m²/day · ~867 kWh per kWp per year
Monthly solar irradiation & temperature in Warsaw (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.67 | -4.0 | 16 |
| Feb | 1.38 | -2.3 | 34 |
| Mar | 2.64 | 2.3 | 64 |
| Apr | 4.16 | 8.7 | 101 |
| May | 5.22 | 14.4 | 127 |
| Jun | 5.63 | 18.1 | 137 |
| Jul | 5.26 | 20.6 | 128 |
| Aug | 4.55 | 20.0 | 111 |
| Sep | 3.19 | 14.7 | 78 |
| Oct | 1.75 | 8.4 | 42 |
| Nov | 0.74 | 3.5 | 18 |
| Dec | 0.49 | -1.5 | 12 |
Solar potential of Warsaw explained
Warsaw receives an average of 2.97 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 867 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 Warsaw?
With 2.97 kWh/m²/day of average irradiation, a 1 kWp system in Warsaw produces roughly 867 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 Warsaw?
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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