solar panel tilt calculator
Solar Panel Tilt Calculator
Get the four seasonal tilt angles for an adjustable solar panel mount to maximize energy output year-round.
Recommended Seasonal Tilt Angles
Spring
Equinox setting, also used for Fall. This is your primary reference angle, equal to your latitude.
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Summer
Lower tilt angle to better catch the high summer sun.
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Fall
Equinox setting, same as Spring. Equal to your latitude.
Equinox Reference
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Winter
Steeper tilt angle to better catch the low winter sun.
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Adjusting your tilt seasonally can improve annual energy yield by roughly 5-10% compared to a single fixed angle, but adds mechanical complexity and maintenance versus a fixed mount.
Estimates use standard rule-of-thumb formulas. Actual optimal tilt can vary with local climate, shading, and panel technology.
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