Do solar panels use the light from the sun, the heat from the sun or both?
I was wondering if photovoltaic panels (solar panels) harness the light or the heat from the sun (or both). Also I was wondering if solar power would work in areas of the world that are sunny but not necesarily hot?
UV radiations only.
The heat radiated is IR (infrared) and HAS A NEGATIVE IMPACT ON SOLAR CELLS since they are dark, and have a glazing layer... so they have a built in "greenhouse effect". As such their temperature in sunny countries can often exceed 60°C and be over 80°C while they have an optimal performance at 45-55°C.
Solar cells need DIRECT solar radiation to work.
Areas in the world which have a lot of light but are not necessarily too hot are just perfect.
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