Solar panel angles in Portugal
Optimal fixed-panel tilt and orientation for 3 cities in Portugal, computed from solar geometry.
| City | Latitude | Optimal tilt | Facing | Flat roof keeps |
|---|---|---|---|---|
| Lisbon | 38.73°N | 33° | south | 87% |
| Porto | 41.15°N | 35° | south | 85% |
| Braga | 41.55°N | 36° | south | 85% |
The same sunlight, a different question. Vitamin D winters in Portugal →