The sun is the earth’s most important natural supplier of energy
The sun is the earth’s most important natural supplier of energy and provides more energy in one hour than the world’s population can use in a year. Photovoltaics use this solar energy and convert it into electricity with the help of solar cells. The absorbed light generates free charges in these solar cells, which mostly consist of the semiconductor material silicon. These cause an electrical voltage on the cell, so that direct current flows through a connected device. The solar-generated DC is then converted into alternating current in an inverter.