Solar energy in Ostrava, Czech Republic
Average irradiation 3.01 kWh/m²/day · ~879 kWh per kWp per year
Monthly solar irradiation & temperature in Ostrava (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.91 | -3.3 | 22 |
| Feb | 1.63 | -1.4 | 40 |
| Mar | 2.78 | 2.8 | 68 |
| Apr | 4.09 | 8.7 | 99 |
| May | 4.79 | 13.7 | 116 |
| Jun | 5.17 | 17.8 | 126 |
| Jul | 5.14 | 20.1 | 125 |
| Aug | 4.59 | 19.7 | 112 |
| Sep | 3.23 | 14.4 | 79 |
| Oct | 1.99 | 8.7 | 49 |
| Nov | 1.04 | 3.9 | 25 |
| Dec | 0.72 | -1.4 | 18 |
Solar potential of Ostrava explained
Ostrava receives an average of 3.01 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 879 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 Ostrava?
With 3.01 kWh/m²/day of average irradiation, a 1 kWp system in Ostrava produces roughly 879 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 Ostrava?
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
London (2.6) · Paris (3.2) · Berlin (2.9) · Munich (3.3) · Madrid (4.8) · Barcelona (4.6) · all cities →