How to Calculate Solar Panel Angle

Saving the Earth takes effort.
Properly angled solar panels produce optimum energy.
One way you can reduce your reliance on fossil fuels is to install solar panels. Solar panels require proper angling to take full advantage of sunlight for maximum electricity production. Your location and time of year will determine the correct level at which to angle your solar panels. Once in place, your solar panels will help you take better care of the earth while reducing your electric bill. .

Step 1

Look for your location on a map or GPS device to determine your latitude above or below the equator.

Step 2

Point your solar panels to the south if you live in the northern hemisphere and to the north for the southern hemisphere.

Step 3

Take your latitude and add 15 degrees to it to find your winter solar panel angle.

Step 4

Subtract 15 degrees from your latitude to find the angle for your solar panel in the summer.

Things You Will Need

  • Map or GPS device


  • For most home installations, solar panels are simply mounted to a home's roofs regardless of the angle, so long as they are facing in the right direction. While the angles may not be optimum, they are sufficient for good electric production. In installations where panels are mounted on the ground or on flat roofs, installers have the ability to set the angle of the panels. Since it is not practical to move the angle of panels once installed, a compromise is struck between the best angle for the summer and the best angle for winter.