Solar energy refers to energy that is produced from sunlight.  The energy from sunlight is collected through different means such as photovoltaic cells or solar thermal panels and used to create heat or electricity.

Solar energy technology is the most benign form of power generation.  It uses no fuel to produce electric power, so there is no air pollution, no waste material, no carbon, and no cost escalation due to fuel price increase.  It is powered by the sun with an infinite renewable supply.  For these reasons, many governments around the world are encouraging solar energy development.

(Information from Community Energy Inc.)