Solar panel angles in France
Optimal fixed-panel tilt and orientation for 4 cities in France, computed from solar geometry.
| City | Latitude | Optimal tilt | Facing | Flat roof keeps |
|---|---|---|---|---|
| Paris | 48.85°N | 40° | south | 81% |
| Marseille | 43.30°N | 36° | south | 84% |
| Lyon | 45.75°N | 38° | south | 82% |
| Lille | 50.63°N | 41° | south | 80% |
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