EclecticBadger
New Member
- Joined
- Sep 20, 2019
- Messages
- 28
I have always used the following advice as means of judging the most efficient angle to the horizontal for northern hemisphere and my UK location (latitude 53 degrees):
SUMMER
Degrees Latitude x 0.9 - 23.5
SPRING / AUTUMN
Deg. Lat. - 2.5
WINTER
Deg. Lat. x 0.9 + 29.0
Simply put, summer more horizontal, winter more vertical.
Generally fixed panels should face as near due South as possible. However, for systems capable of solar tracking and re-orientating compass direction:
MARCH / SEPTEMBER
Sunrise due East. Sunset due West
Late-JUNE
Sunrise North-East. Sunset North-West
Late-DECEMBER
Sunrise South-East. Sunset South-West
My recommended Best App for locating where the sun should be on overcast days for Android and iOS: Sun Surveyor by Adam Ratana.
SUMMER
Degrees Latitude x 0.9 - 23.5
SPRING / AUTUMN
Deg. Lat. - 2.5
WINTER
Deg. Lat. x 0.9 + 29.0
Simply put, summer more horizontal, winter more vertical.
Generally fixed panels should face as near due South as possible. However, for systems capable of solar tracking and re-orientating compass direction:
MARCH / SEPTEMBER
Sunrise due East. Sunset due West
Late-JUNE
Sunrise North-East. Sunset North-West
Late-DECEMBER
Sunrise South-East. Sunset South-West
My recommended Best App for locating where the sun should be on overcast days for Android and iOS: Sun Surveyor by Adam Ratana.