Germany: solar plant site data
Solar power plant in Ahlen, Germany: yield, tilt angle and row spacing
Ahlen: 1,036 kWh per kWp a year at the optimal tilt of 39°, 2° east of south (PVGIS). 0.8% below the median of the main cities of Germany (1,045). #108 of 193 main cities of Germany by yield. For comparison, Kyiv: 1,114 kWh/kWp — 7.0% less here.
Ahlen is in North Rhine-Westphalia. Population 55,280 (GeoNames). 82 m above sea level. 10 km away: Hamm, the nearest bigger city, the same 1,040 kWh/kWp. 14.62 m between rows, pitch 18.34 m, GCR 0.26 (latitude 51.8°).
- Yield of 1 kWp
- 1,036kWh/year
- Tilt
- 39°2° east of south
- 10 kW
- 10,361kWh/year
- Row pitch
- 18.34m · GCR 0.26
- Rank in the country
- 108of 193 cities
Ground frame designer
A ground frame for a solar plant: Ahlen
Latitude 51.8°: the tilt and the row pitch follow it. Enter the snow and wind for Germany in the designer, by the national annex to the Eurocode.
- No sign-up
- Snow and wind check
- Drawings and estimate
Yield by month
May: 127 kWh/kWp, December: 30 — 4.2 times less.
February: 54 against the median of 56 for the main cities of Germany, 3.6% less.
| kWp | A year | May | December |
|---|---|---|---|
| 5 | 5,181 | 635 | 150 |
| 10 | 10,361 | 1,270 | 300 |
| 15 | 15,541 | 1,905 | 450 |
Snow and wind loads
Snow and wind loads for a site in Germany follow DIN EN 1991-1-3/NA (snow load zone, Schneelastzone) and DIN EN 1991-1-4/NA (wind zone, Windzone). Solispec computes loads by the Ukrainian DBN V.1.2-2 only, so this page shows no snow or wind values for Germany: 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: DIN EN 1991-1-3/NA, DIN EN 1991-1-4/NA
- How these numbers are computed
Preliminary calculation: a design needs an engineer’s check.