In Northern New England, the best roof orientation is 196 degrees on the compass (known as ‘solar south’), however an installation of /- 50 degrees (155 -245) is also fine. Within eight or seven percent of maximum, power output stays in this range. Much more easterly and westerly roof installations are viable, particularly on roofs that are shallower. For instance, a 7/12 roof that’s due east or due west still attains 77% of a system’s potential performance.
More significant than angle, generally, is shading. We don’t want to see any shading on a solar roof from 9 am to 3 pm, year-round. Technological advancements including microinverters can compensate for shading problems to some extent.
The very best way to know for certain if your roof is feasible for solar would be to contact us for a totally free solar evaluation.