Since the first photovoltaic panel was developed in 1954, the efficiency of solar cells has risen steadily & at the same time prices have fallen consistently. Photovoltaic glass was first used in space because the only source of energy in space is the sun. Today photovoltaic technology can be used to replace construction materials on buildings & transform solar radiation into energy at the same time. Photovoltaic means the direct conversion of sunlight into electric energy with the help of solar cells; in addition, they can also represent a form of passive solar protection. Photovoltaic (PV) technology is a clean source of energy, it produces neither noise, smoke, acid rain, water pollutants, carbon dioxide nor nuclear waste because it relies on the power of the sun for its fuel.
