1. Find the direction of magnetic North and consequently magnetic South.
2. Adjust for magnetic declination to find exact true South.
3. Point solar panels towards true South.
4. Find optimum tilt angle based on the latitude and the season.
Enter the value of latitude below to find the panel tilt in degrees.
Spring and Fall
1. The result above is the angle in degrees from the horizontal.
2. If you do not know the latitude of your city you can look it up here.