The term photovoltaic (PV) means to convert light directly into electricity through a photochemical reaction involving silicon, a semiconductor material ideal for this task due to its light sensitive properties. Photovoltaics are made of silicon, plus boron and phosphorous. In the presence of sunlight, an electric current is produced from the release of electrons contained in these three materials` atoms. The released electrons can be induced to travel through an electrical circuit, powering any type of electronic device or load. PV modules involve no moving parts and produce no pollution.