Poland: solar plant site data
Solar power plant in Siemianowice Śląskie, Poland: yield, tilt angle and row spacing
Siemianowice Śląskie: 1,077 kWh per kWp a year at the optimal tilt of 39°, 3° east of south (PVGIS). 1.1% above the median of the main cities of Poland (1,065). #24 of 87 main cities of Poland by yield. For comparison, Kyiv: 1,114 kWh/kWp — 3.3% less here.
Siemianowice Śląskie is in Silesian Voivodeship. Population 73,121 (GeoNames). 270 m above sea level. 5 km away: Chorzów, the nearest bigger city, the same 1,076 kWh/kWp. 12.96 m between rows, pitch 16.68 m, GCR 0.29 (latitude 50.3°).
- Yield of 1 kWp
- 1,077kWh/year
- Tilt
- 39°3° east of south
- 10 kW
- 10,770kWh/year
- Row pitch
- 16.68m · GCR 0.29
- Rank in the country
- 24of 87 cities
Ground frame designer
A ground frame for a solar plant: Siemianowice Śląskie
Latitude 50.3°: the tilt and the row pitch follow it. Enter the snow and wind for Poland in the designer, by the national annex to the Eurocode.
- No sign-up
- Snow and wind check
- Drawings and estimate
Yield by month
July: 129 kWh/kWp, December: 37 — 3.5 times less.
November: 48 against the median of 41 for the main cities of Poland, 17.1% more.
| kWp | A year | July | December |
|---|---|---|---|
| 5 | 5,385 | 645 | 185 |
| 10 | 10,770 | 1,290 | 370 |
| 15 | 16,155 | 1,935 | 555 |
Snow and wind loads
Snow and wind loads for a site in Poland follow PN-EN 1991-1-3 (snow) and PN-EN 1991-1-4 (wind) with the Polish National Annex (NA). Solispec computes loads by the Ukrainian DBN V.1.2-2 only, so this page shows no snow or wind values for Poland: enter the characteristic values from these documents in the designer’s «Own snow S0» and «Own wind W0» fields.
The frame calculation for such a site is preliminary: before installation it must be checked by an engineer who works to the country’s standards.
Nearby cities
Sources
- PVGIS © European Union, 2001–2026 — yield, tilt and azimuth, data as of 2026-10-10
- GeoNames (CC BY 4.0) — coordinates, elevation, population and divisions (changed)
- Where to take snow and wind loads from: PN-EN 1991-1-3 + NA, PN-EN 1991-1-4 + NA
- How these numbers are computed
Preliminary calculation: a design needs an engineer’s check.