Photovoltaics, or PV for short, is a technology in which light is converted into electrical power. It is best known as a method for generating solar power by using solar cells or solar photovoltaic arrays to convert energy from the sun into electricity.
Photovoltaic technology converts sunlight directly into electricity. It works any time the sun is shining, but more electricity will be produced when the light is more intense (a sunny day) and is striking the PV modules directly (when the rays of sunlight are perpendicular to the PV modules). Unlike solar systems for heating water, which you might be more familiar with, Photovoltaic technology does not use the sun's heat to make electricity. Instead, PV produces electricity directly from the electrons freed by the interaction of sunlight with semiconductor materials in the PV cells.
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