Solar Panel Tilt Angle Calculator
Calculate the optimal tilt angle for your solar panels.
Solar Panel Tilt Angle Calculator
Optimize your solar panel tilt angle
Formula
Tilt varies by latitude and seasonHow to Use
- 1Enter your latitude — Input your location latitude (find it using Google Maps).
- 2Select the season — Choose the season or month for seasonal angle optimization.
- 3Get optimal angle — See the recommended tilt angle for maximum solar energy capture.
- 4Adjust your panels — Set your panels to the recommended angle for peak output.
Frequently Asked Questions
What is the best angle for solar panels?
A good starting point is your latitude angle. For year-round fixed panels, set the tilt equal to your latitude. Seasonal adjustment can increase output by 10-25%.
Should solar panels face south?
In the Northern Hemisphere, panels should face true south (not magnetic south). In the Southern Hemisphere, face them true north.
Does the tilt angle change by season?
Yes. Steeper angles (latitude + 15°) work best in winter when the sun is low. Shallower (latitude - 15°) is better in summer.
What if my roof angle is fixed?
Most residential roofs (20-40°) work well enough. The energy difference between optimal and a typical roof angle is usually 5-15%.