Solar panels convert the sun’s energy directly into electricity. The basic unit of a solar panel is a solar cell, which usually consists of one or two layers of silicon-based semiconductor wafers. When struck by the photons in sunlight, the solar cell generates an electrical charge due to the “photovoltaic effect” – which is a pretty good name, since it produces voltage from photons.
THE sun is the ultimate source of all life on earth. It is also an infinitely renewable and 100% pollution free energy source. Therefore, it is not surprising that we should look to solar energy as a great potential energy source. How do we harness energy from the sun?
One way is through the use of solar panels.