Solar planning

Solar Panel Angle Calculator

Estimate a practical fixed tilt plus seasonal tilt targets from your latitude.

Latitude (degrees)Existing roof pitch (degrees, optional)

Annual fixed tilt—

Summer tilt—

Winter tilt—

Your roof difference—

Rule-of-thumb estimator: annual tilt ≈ absolute latitude; seasonal values use latitude ±15°. Real optimum depends on local climate, shading, azimuth, mounting constraints and electricity-use pattern.

Check local insolation Design a complete system