Photovoltaic solar cells are silicon semiconductor devices which produce electricity by converting the solar energy generated from the sun in the form of visible light, ultra-violet, or infra-red radiation into a DC current by using the photovoltaic action of the cell without the use of any moving parts. The amount of electrical power, expressed in watts, generated by a photovoltaic solar cell depends on the amount of solar irradiance and other conditions such as temperature and cloud cover with the maximum or peak power a PV cell can deliver at full sun with the cell uncovered.
