Photovoltaic (PV) technology converts one form of energy (sunlight) into another form of energy (electricity). PV systems consume no conventional fossil fuels, create no pollution, use no moving parts and last for more than 25 years with very little maintenance. Photovoltaics can utilize both direct and diffused solar radiation and convert it into electricity.
A single conventional PV cell produces only about 1.5 Watts, so to obtain more power, groups of cells are usually connected together to form modules, and modules connect together to form arrays. Photovoltaic systems have the capacity to generate anything from a few Watts to several Mega Watts.
PV systems can be placed onto roofs, on building facades, as well as in open spaces.