howmuchsun

Solar panel angles in Finland

Optimal fixed-panel tilt and orientation for 9 cities in Finland, computed from solar geometry.

CityLatitudeOptimal tiltFacingFlat roof keeps
Helsinki 60.17°N 47° south 75%
Espoo 60.21°N 47° south 75%
Tampere 61.50°N 47° south 74%
Vantaa 60.29°N 47° south 75%
Oulu 65.01°N 49° south 74%
Turku 60.45°N 47° south 75%
Jyväskylä 62.24°N 48° south 74%
Kuopio 62.89°N 48° south 74%
Lahti 60.98°N 47° south 74%

How these angles are calculated