Germany: solar plant site data
Solar power plant in Iserlohn, Germany: yield, tilt angle and row spacing
Iserlohn: 985 kWh per kWp a year at the optimal tilt of 38°, 2° east of south (PVGIS). 5.7% below the median of the main cities of Germany (1,045). #185 of 193 main cities of Germany by yield. For comparison, Kyiv: 1,114 kWh/kWp — 11.6% less here.
Iserlohn is in North Rhine-Westphalia. Population 91,811 (GeoNames). 253 m above sea level. 16 km away: Hagen, the nearest bigger city, 1,003 kWh/kWp — 1.8% less here. 13.83 m between rows, pitch 17.60 m, GCR 0.27 (latitude 51.4°).
- Yield of 1 kWp
- 985kWh/year
- Tilt
- 38°2° east of south
- 10 kW
- 9,850kWh/year
- Row pitch
- 17.60m · GCR 0.27
- Rank in the country
- 185of 193 cities
Ground frame designer
A ground frame for a solar plant: Iserlohn
Latitude 51.4°: 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: 120 kWh/kWp, December: 28 — 4.3 times less.
January: 32 against the median of 35 for the main cities of Germany, 8.6% less.
| kWp | A year | May | December |
|---|---|---|---|
| 5 | 4,925 | 600 | 140 |
| 10 | 9,850 | 1,200 | 280 |
| 15 | 14,775 | 1,800 | 420 |
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.