http://energy2green.com/ How Solar Panel Works?

The Sun produces a range of energy which we can only see a small part of as visible white light. Solar panels turn another part, or wavelength, of the light into electricity that can be harnessed. A photovoltaic cell (PV Cell) produces electricity on the principle that electricity will be produced when two semiconductors are exposed to a particular wavelength of light. Groups of PV Cells are linked together to form panels, the bigger the panel and the more cells, the greater the amount of electricity can be produced.