A Solar Panel is a device which converts sun energy to electrical energy through silicon cells. Nowadays solar panels are made from thousands of silicone cells on the surface of the panel. The sunlight falls on the cells and the cells generate DC electricity. The cells can also be connected with the wires to adjacent solar panels in order to increase the power output. The solar panel can generate electricity to its maximum on the peak sun hours during the day. At times when the sun is not shining you can use the power bank batteries to power your house.