Spain: solar plant site data
Solar power plant in Logroño, Spain: yield, tilt angle and row spacing
Logroño: 1,418 kWh per kWp a year at the optimal tilt of 37°, 2° east of south (PVGIS). 12.2% below the median of the main cities of Spain (1,615). #127 of 147 main cities of Spain by yield. For comparison, Kyiv: 1,114 kWh/kWp — 27.3% more here.
Logroño is in La Rioja. Population 151,164 (GeoNames). 380 m above sea level. 46 km away: Vitoria-Gasteiz, the nearest bigger city, 1,274 kWh/kWp — 11.3% more here. 7.53 m between rows, pitch 11.35 m, GCR 0.42 (latitude 42.5°).
- Yield of 1 kWp
- 1,418kWh/year
- Tilt
- 37°2° east of south
- 10 kW
- 14,177kWh/year
- Row pitch
- 11.35m · GCR 0.42
- Rank in the country
- 127of 147 cities
Ground frame designer
A ground frame for a solar plant: Logroño
Latitude 42.5°: 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: 156 kWh/kWp, December: 76 — 2.1 times less.
December: 76 against the median of 103 for the main cities of Spain, 26.2% less.
| kWp | A year | July | December |
|---|---|---|---|
| 5 | 7,089 | 780 | 380 |
| 10 | 14,177 | 1,560 | 760 |
| 15 | 21,266 | 2,340 | 1,140 |
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) | 1,418 | — |
| 15° | 1,341 | −5.4% |
| 30° | 1,410 | −0.5% |
| 45° | 1,408 | −0.7% |
| 90° | 958 | −32.4% |
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.