|Photovoltaics: PV Solar Systems|
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Photovoltaic (PV) systems convert
sunlight directly to electricity. They absorb visible light and turn it
into an electric current.
The panels work anytime the sun is shining, but more electricity is produced when
1. The sunshine is more intense.
2. When the rays of sunlight are
most perpendicular to the PV modules.
PV panels do not use the sun's
heat to make electricity. Rather, the electrons freed by the interaction
of sunlight with the semiconductor materials are captured in an electric
The basic building block of PV
technology is the solar "cell." Multiple PV cells are connected
to build a PV module which is the smallest PV component sold commercially.
A PV array is created when
multiple PV panels or modules are connected.
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