spow :
Solar power is the conversion of sunlight into electricity, either directly using photovoltaic’s (PV), or indirectly using concentrated solar power (CSP). Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. Photovoltaic’s convert light into electric current using the photoelectric effect. Solar power has great potential, but in 2008 supplied less than 0.02% of the world's total energy supply.
Energy from the sun - Multiple forms of energy originate with the sun. This energy is the sustaining force that allows humans to live on Earth. Production of this energy first begins in the sun's core. The sun, like most stars, is mainly made of hydrogen. Its core is so hot and compressed that large amounts of hydrogen atoms stick together. These atoms turn into helium, in a process called atomic or nuclear fusion. This transformation produces massive amounts of energy. The energy manufactured in the center of the sun then radiates outward from the core. The sun's glow and heat result from this process.
