Photovoltaic systems provide clean energy for applications all over the world. From skyscrapers in urban areas to remote villages in developing countries or regions. Photovoltaic power supplies a wide range of household appliances, including computers and communications equipment, water pumps and lighting. Examples of cost savings using photovoltaic power include small lawn lights, street lamps, entertainment lights, highway signals, warning lights, and a variety of commercial and household lighting. In fact, photovoltaic systems can be used to power just about anything.