Despite the drawbacks, solar energy use has surged at about 20 percent a year over the past 15 years, thanks to rapidly falling prices and gains in efficiency. China, Japan, Germany, and the United States are major markets for solar cells. With tax incentives and efficient coordination with energy companies, solar electricity can often pay for itself in five to ten years. As of 2011, the technology produced less than one-tenth of……

Photovoltaics refers to the direct conversion of solar energy into electric energy using solar cells made of silicon. This probably the most environmentally-friendly way of generating electricity. Photovoltaics is considered a renewable form of energy. Convert the sunlight into electricity Photovoltaic cells convert the sunlight into electricity. A typical example of a device powered by photovoltaic cells is a solar powered calculator. This type of device only needs a small amount……