Poland: solar plant site data
Solar power plant in Zielona Góra, Poland: yield, tilt angle and row spacing
Zielona Góra: 1,054 kWh per kWp a year at the optimal tilt of 40°, 5° east of south (PVGIS). 1.0% below the median of the main cities of Poland (1,065). #65 of 87 main cities of Poland by yield. For comparison, Kyiv: 1,114 kWh/kWp — 5.4% less here.
Zielona Góra is in Lubusz Voivodeship. Population 118,433 (GeoNames). 143 m above sea level. 110 km away: Poznan, the nearest bigger city, the same 1,059 kWh/kWp. 15.16 m between rows, pitch 18.82 m, GCR 0.25 (latitude 51.9°).
- Yield of 1 kWp
- 1,054kWh/year
- Tilt
- 40°5° east of south
- 10 kW
- 10,539kWh/year
- Row pitch
- 18.82m · GCR 0.25
- Rank in the country
- 65of 87 cities
Ground frame designer
A ground frame for a solar plant: Zielona Góra
Latitude 51.9°: 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: 31 — 4.2 times less.
October: 74 against the median of 79 for the main cities of Poland, 6.3% less.
| kWp | A year | July | December |
|---|---|---|---|
| 5 | 5,270 | 645 | 155 |
| 10 | 10,539 | 1,290 | 310 |
| 15 | 15,809 | 1,935 | 465 |
Fixed tilt facing south
What a table yields at another tilt than the optimal 40° — for roofs and frames with a standard slope.
| Tilt | A year | Against the optimum |
|---|---|---|
| 40° (optimum) | 1,054 | — |
| 15° | 983 | −6.8% |
| 30° | 1,042 | −1.1% |
| 45° | 1,050 | −0.4% |
| 90° | 756 | −28.3% |
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.