Germany: solar plant site data
Solar power plant in Lahr, Germany: yield, tilt angle and row spacing
Lahr: 1,133 kWh per kWp a year at the optimal tilt of 38°, 1° east of south (PVGIS). 8.5% above the median of the main cities of Germany (1,045). #10 of 193 main cities of Germany by yield. For comparison, Kyiv: 1,114 kWh/kWp — 1.7% more here.
Lahr is in Baden-Württemberg. Population 50,775 (GeoNames). 176 m above sea level. 16 km away: Offenburg, the nearest bigger city, the same 1,137 kWh/kWp. 10.95 m between rows, pitch 14.72 m, GCR 0.33 (latitude 48.3°).
- Yield of 1 kWp
- 1,133kWh/year
- Tilt
- 38°1° east of south
- 10 kW
- 11,332kWh/year
- Row pitch
- 14.72m · GCR 0.33
- Rank in the country
- 10of 193 cities
Ground frame designer
A ground frame for a solar plant: Lahr
Latitude 48.3°: 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
July: 133 kWh/kWp, December: 42 — 3.2 times less.
December: 42 against the median of 30 for the main cities of Germany, 40.0% more.
| kWp | A year | July | December |
|---|---|---|---|
| 5 | 5,666 | 665 | 210 |
| 10 | 11,332 | 1,330 | 420 |
| 15 | 16,998 | 1,995 | 630 |
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.