Solar panels (modules) are the power generators in a photovoltaic solar system. Panels range in value from as low as 3.5 W to as high as 300W. Most solar panels below 160 W are 12 V systems while above 160 W are 24 V. solar panels are mainly three types namely: Monocrystalline, Polycrystalline and Amorphous.
Most producers of solar panels provide a qurantee of 20-25 years. Solar panels are suitable for battery charging, stand alone applications such as in rural electrification, telecommunications and water pumping as well as grid connect applications.