Spain: solar plant site data
Solar power plant in Castellon, Spain: yield, tilt angle and row spacing
Castellon: 1,617 kWh per kWp a year at the optimal tilt of 37°, 2° west of south (PVGIS). Exactly the median of the main cities of Spain (1,615). #70 of 147 main cities of Spain by yield. For comparison, Kyiv: 1,114 kWh/kWp — 45.2% more here.
Castellon is in the province of Castellón, Valencian Community. Population 183,711 (GeoNames). 30 m above sea level. 64 km away: Valencia, the nearest bigger city, 1,632 kWh/kWp — 0.9% less here. 6.65 m between rows, pitch 10.47 m, GCR 0.46 (latitude 40.0°).
- Yield of 1 kWp
- 1,617kWh/year
- Tilt
- 37°2° west of south
- 10 kW
- 16,171kWh/year
- Row pitch
- 10.47m · GCR 0.46
- Rank in the country
- 70of 147 cities
Ground frame designer
A ground frame for a solar plant: Castellon
Latitude 40.0°: 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: 160 kWh/kWp, December: 106 — 1.5 times less.
August: 155 against the median of 163 for the main cities of Spain, 4.9% less.
| kWp | A year | July | December |
|---|---|---|---|
| 5 | 8,086 | 800 | 530 |
| 10 | 16,171 | 1,600 | 1,060 |
| 15 | 24,257 | 2,400 | 1,590 |
Fixed tilt facing south
What a table yields at another tilt than the optimal 37° — for roofs and frames with a standard slope.
| Tilt | A year | Against the optimum |
|---|---|---|
| 37° (optimum) | 1,617 | — |
| 15° | 1,520 | −6.0% |
| 30° | 1,606 | −0.7% |
| 45° | 1,606 | −0.7% |
| 90° | 1,080 | −33.2% |
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.