Our Sun , in a massive nuclear furnace about 150 million kMs from the planet earth. It is a huge burning ball yet no burning occurs on the sun as there is very little oxygen. So how does the sun radiate so much heat , light & energy ? Sun has a lot of hydrogen . These atoms under immense pressure and temperature fuse together to become a single atom atom and in the process release huge amounts of energy . This process is know as nuclear fusion. Fusion of 2 hydrogen atoms results in formation of Helium Four atoms ( a non radioactive isotope of Helium) . Thus the genesis of Helium Four is the reason behind sun radiating so much of useful energy which can be converted to electrical energy using solar panels. We sincerely believe that "Planet Earth is designed to work on solar energy".