Why do solar panels work best when the sun is directly over them?

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Offline thedoc

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Bob asked the Naked Scientists:
   
Why is it that the solar panel electricity output is maximum when the sun is directly overhead and reduces either side of maximum position.
What do you think?
« Last Edit: 22/07/2015 20:50:01 by _system »

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Offline PmbPhy

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Bob asked the Naked Scientists:
   
Why is it that the solar panel electricity output is maximum when the sun is directly overhead and reduces either side of maximum position.
What do you think?
Because that's when the flux of solar energy through the solar panels is the largest.