Solar energy is a renewable energy source available to man the first time found on earth.
In previous years the technology and production cost prevented the widespread use of solar energy for conversion to other forms of energy. Over the last decade with the advancement of technology we have managed to become affordable way this generation through photovoltaics.
To be able to understand the amount of energy the sun gives us enough to say that solar power within a year drops to 1 sq.m land corresponds to the energy producing a barrel of oil. Photovoltaic now enable us to exploit this inexhaustible energy source.