Spain: solar plant site data
Solar power plant in Mérida, Spain: yield, tilt angle and row spacing
Mérida: 1,615 kWh per kWp a year at the optimal tilt of 34°, 1° east of south (PVGIS). Exactly the median of the main cities of Spain (1,615). #76 of 147 main cities of Spain by yield. For comparison, Kyiv: 1,114 kWh/kWp — 45.0% more here.
Mérida is in the province of Badajoz, Extremadura. Population 59,857 (GeoNames). 223 m above sea level. 55 km away: Badajoz, the nearest bigger city, the same 1,609 kWh/kWp. 5.87 m between rows, pitch 9.84 m, GCR 0.49 (latitude 38.9°).
- Yield of 1 kWp
- 1,615kWh/year
- Tilt
- 34°1° east of south
- 10 kW
- 16,152kWh/year
- Row pitch
- 9.84m · GCR 0.49
- Rank in the country
- 76of 147 cities
Ground frame designer
A ground frame for a solar plant: Mérida
Latitude 38.9°: the tilt and the row pitch follow it. Enter the snow and wind for Spain in the designer, by the national annex to the Eurocode.
- No sign-up
- Snow and wind check
- Drawings and estimate
Yield by month
July: 169 kWh/kWp, December: 95 — 1.8 times less.
December: 95 against the median of 103 for the main cities of Spain, 7.8% less.
| kWp | A year | July | December |
|---|---|---|---|
| 5 | 8,076 | 845 | 475 |
| 10 | 16,152 | 1,690 | 950 |
| 15 | 24,228 | 2,535 | 1,425 |
Fixed tilt facing south
What a table yields at another tilt than the optimal 34° — for roofs and frames with a standard slope.
| Tilt | A year | Against the optimum |
|---|---|---|
| 34° (optimum) | 1,615 | — |
| 15° | 1,540 | −4.7% |
| 30° | 1,611 | −0.3% |
| 45° | 1,595 | −1.2% |
| 90° | 1,037 | −35.8% |
Snow and wind loads
Snow and wind loads for a site in Spain follow CTE DB SE-AE (Spain’s Código Técnico de la Edificación) and, where the Eurocodes are applied, UNE-EN 1991-1-3 and UNE-EN 1991-1-4 with the Spanish National Annex. Solispec computes loads by the Ukrainian DBN V.1.2-2 only, so this page shows no snow or wind values for Spain: 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: CTE DB SE-AE
- How these numbers are computed
Preliminary calculation: a design needs an engineer’s check.