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Solar Insolation Map showing Peak Sun Hours/Day of United States.

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How Many Sun Hours
a Day Do You Get?

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Solar insolation map data
solar insolation map
Zone 1      6    hours
Zone 2      5.5 hours
Zone 3      5    hours
Zone 4      4.5 hours
Zone 5      4.2 hours
Zone 6      3.5 hours

The figures at the left indicate the average (over the course of the year) amount of solar insolation (full sun hours) for these zones.  These figures are based on the yearly average; consequently, systems based on these figures will provide more power in summer and less in winter.  Winter figures for daily solar gain may be from 25% to 50% LESS than these average figures.   We do have additional insolation data available for other parts of the world;
e-mail us the location of your solar project and well help you design your solar power system. If you have any furthure questions about this solar insolation map email or give us a call!

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solar insolation zone 5Zone 5solar insolation zone 6solar insolation zone 4A map that shows the sun hours per zone.solar insolation zone two