Here's a look at the best solar panel angles of 30 major US cities: Scroll to the top of this page to use our Solar Panel Tilt Angle Calculator.
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The optimal tilt angle for solar panels typically equals your location's latitude. For most of the continental United States, this means angles between 25-45 degrees.
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The 30-degree rule is flexible: While 30 degrees is often cited as optimal, any roof pitch between 15-45 degrees will deliver excellent solar performance, typically within 5-10% of peak efficiency. Don't let imperfect pitch discourage you from going solar.
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The optimal solar panel tilt angle equals your latitude for year-round efficiency. This simple adjustment can increase solar output by 10 to 25 percent depending on your.
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