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Solar

Solar Panel Angle & Tilt Optimizer

Optimal tilt and azimuth from latitude and season—fixed, summer, or winter mounting.

Latitude°

Negative for Southern Hemisphere

Optimization goal

Recommended tilt

Enter latitude

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About Solar Panel Angle & Tilt Optimizer

Tilt rules

Year-round: tilt ≈ |latitude|. Summer: |latitude| − 15°. Winter: |latitude| + 15°. Azimuth faces true south (180°) in the Northern Hemisphere.

Fixed vs. adjustable

Most rooftop arrays use a single year-round tilt matching roof pitch. Seasonal adjustments help ground mounts in snowy climates.

Frequently asked questions

Q: What about azimuth? A: Due south (north in southern hemisphere) maximizes annual energy in most locations. Q: Flat roof? A: Use tilt racks near latitude for better yield than flat.

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