Solar Panels : An Environment-friendly Power Generator.

Solar panels produce energy from the sun at no cost by turning sunlight into electricity without the need of moving parts and with absolutely no maintenance or emissions. The solar panel, the main aspect of an electric solar energy system is actually a number of individual silicon cells which yield electrical power from sunlight. Light particles called photons generate electricity when they hit the surface and vibrate the thin silicon wafers. One solar cell generates just around 1/2 (.5) of a volt. On the other hand, a standard 12-volt panel which is around 25 by 54 inches consists of 36 cells connected in series to be able to generate around 17 volts peak output. A solar panel can be set up for 24 volt end result by using 72 cells so that the two 12-volt groups of 36 each can be connected or wired in series, normally through the use of a jumper. When under load, this voltage goes down to 12 to 14 volts (for a 12 volt configuration) leading to between 75 and 100 watts for a panel of this size.