howmuchsun

Solar panel angles in Puerto Rico

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

CityLatitudeOptimal tiltFacingFlat roof keeps
San Juan 18.47°N 16° south 97%
Bayamón 18.40°N 16° south 97%
Carolina 18.38°N 16° south 97%

How these angles are calculated