Poland: solar plant site data
Solar power plant in Ostrołęka, Poland: yield, tilt angle and row spacing
Ostrołęka: 1,033 kWh per kWp a year at the optimal tilt of 39°, 4° east of south (PVGIS). 3.0% below the median of the main cities of Poland (1,065). #76 of 87 main cities of Poland by yield. For comparison, Kyiv: 1,114 kWh/kWp — 7.2% less here.
Ostrołęka is in Masovian Voivodeship. Population 53,740 (GeoNames). 97 m above sea level. 34 km away: Łomża, the nearest bigger city, 1,042 kWh/kWp — 0.8% less here. 16.54 m between rows, pitch 20.26 m, GCR 0.24 (latitude 53.1°).
- Yield of 1 kWp
- 1,033kWh/year
- Tilt
- 39°4° east of south
- 10 kW
- 10,334kWh/year
- Row pitch
- 20.26m · GCR 0.24
- Rank in the country
- 76of 87 cities
Ground frame designer
A ground frame for a solar plant: Ostrołęka
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: 134 kWh/kWp, December: 23 — 5.8 times less.
December: 23 against the median of 32 for the main cities of Poland, 28.1% less.
| kWp | A year | June | December |
|---|---|---|---|
| 5 | 5,167 | 670 | 115 |
| 10 | 10,334 | 1,340 | 230 |
| 15 | 15,501 | 2,010 | 345 |
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.