When it is easy to be understood in the figure and explains though it is a little difficult story.

A solar optical generation of electricity system is the generation of electricity form which optical energy is changed from to the electric energy directly with a semiconductor of the silicone by using the solar battery.

A figure cut a solar battery lengthwise. Two semiconductors pile up. When the light of the sun hits it, the electricity of the plus and the minus appears. Minus electricity is collected in the upper semiconductor. The electricity of the plus is collected in the semiconductor of the bottom. Electricity is washed away when these were collected in each electrode and it was connected with conduct line. Because fossil fuel isn't burned, to make it take out the toxic substance which makes an environment dirty is, and it goes to make energy for making it take out the toxic substance which makes an environment dirty.