Solar energy in Saint Petersburg, Russia
Average irradiation 2.56 kWh/m²/day · ~748 kWh per kWp per year
Monthly solar irradiation & temperature in Saint Petersburg (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.30 | -9.1 | 7 |
| Feb | 0.90 | -8.3 | 22 |
| Mar | 2.30 | -3.5 | 56 |
| Apr | 3.68 | 3.7 | 90 |
| May | 5.06 | 10.8 | 123 |
| Jun | 5.38 | 15.0 | 131 |
| Jul | 5.10 | 18.3 | 124 |
| Aug | 4.03 | 16.5 | 98 |
| Sep | 2.45 | 11.6 | 60 |
| Oct | 1.03 | 4.5 | 25 |
| Nov | 0.34 | -1.4 | 8 |
| Dec | 0.17 | -6.0 | 4 |
Solar potential of Saint Petersburg explained
Saint Petersburg receives an average of 2.56 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 748 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 Saint Petersburg?
With 2.56 kWh/m²/day of average irradiation, a 1 kWp system in Saint Petersburg produces roughly 748 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 Saint Petersburg?
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%.
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