howmuchsun

Solar panel angles in Switzerland

Optimal fixed-panel tilt and orientation for 3 cities in Switzerland, computed from solar geometry.

CityLatitudeOptimal tiltFacingFlat roof keeps
Zürich 47.37°N 40° south 80%
Geneva 46.20°N 39° south 81%
Basel 47.56°N 40° south 81%

How these angles are calculated