A portion of the incoming solar radiation is absorbed by the surface and a portion is also reflected away. The proportion of light reflected from a surface is the albedo. Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels or modules.
Solar PV Modules are made up of PV Cells, which are most commonly manufactured from silicon.
Photovoltaic cells primarily use visible radiation. The distribution of colours within light is important, because a photovoltaic cell will produce different amounts of current depending on the various colours reflecting on it.
PV cells that form a PV module are connected in a series to achieve a desired output volatge and/or parallel to provide desired current capability. These PV modules when connected in a series and parallel are called an array. Solar Photovotaic System consists of various solar modules (connected in series and parallel), inverters (to convert DC Power to AC Power), mounting sructures or trackers, cables and various other components.