Solar energy in Sumy, Ukraine
Average irradiation 3.36 kWh/m²/day · ~981 kWh per kWp per year
Monthly solar irradiation & temperature in Sumy (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.89 | -7.9 | 22 |
| Feb | 1.79 | -6.7 | 44 |
| Mar | 3.08 | -0.7 | 75 |
| Apr | 4.32 | 7.8 | 105 |
| May | 5.72 | 15.0 | 139 |
| Jun | 6.27 | 18.6 | 153 |
| Jul | 6.00 | 21.3 | 146 |
| Aug | 5.24 | 20.7 | 128 |
| Sep | 3.55 | 14.6 | 86 |
| Oct | 1.96 | 7.1 | 48 |
| Nov | 0.86 | 0.7 | 21 |
| Dec | 0.59 | -4.9 | 14 |
Solar potential of Sumy explained
Sumy receives an average of 3.36 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 981 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 Sumy?
With 3.36 kWh/m²/day of average irradiation, a 1 kWp system in Sumy produces roughly 981 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 Sumy?
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%.
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