Poland: solar plant site data
Solar power plant in Bialystok, Poland: yield, tilt angle and row spacing
Bialystok: 1,017 kWh per kWp a year at the optimal tilt of 39°, 4° east of south (PVGIS). 4.5% below the median of the main cities of Poland (1,065). #82 of 87 main cities of Poland by yield. For comparison, Kyiv: 1,114 kWh/kWp — 8.7% less here.
Bialystok is in Podlaskie Voivodeship. Population 295,683 (GeoNames). 135 m above sea level. 176 km away: Warsaw, the nearest bigger city, 1,053 kWh/kWp — 3.4% less here. 16.62 m between rows, pitch 20.34 m, GCR 0.24 (latitude 53.1°).
- Yield of 1 kWp
- 1,017kWh/year
- Tilt
- 39°4° east of south
- 10 kW
- 10,172kWh/year
- Row pitch
- 20.34m · GCR 0.24
- Rank in the country
- 82of 87 cities
Ground frame designer
A ground frame for a solar plant: Bialystok
Latitude 53.1°: 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
June: 133 kWh/kWp, December: 22 — 6.0 times less.
November: 27 against the median of 41 for the main cities of Poland, 34.1% less.
| kWp | A year | June | December |
|---|---|---|---|
| 5 | 5,086 | 665 | 110 |
| 10 | 10,172 | 1,330 | 220 |
| 15 | 15,258 | 1,995 | 330 |
Fixed tilt facing south
What a table yields at another tilt than the optimal 39° — for roofs and frames with a standard slope.
| Tilt | A year | Against the optimum |
|---|---|---|
| 39° (optimum) | 1,017 | — |
| 15° | 953 | −6.3% |
| 30° | 1,008 | −0.9% |
| 45° | 1,013 | −0.4% |
| 90° | 724 | −28.8% |
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.