Solar energy primarily only requires the power of the sun. The sun is the center of our solar system, and some consider it as the largest star in the world. It is almost perfectly spherical in shape, has a diameter of about 1,392,000 km, (as compared with the Earth which has a diameter of 12 756km) and a mass of about 21030 kilograms, 330,000 times that of Earth. The outer layer of the sun is called Photospheres and appears mottled because of the turbulent eruption of energy on its surface.

The core of the sun is about 25% of its total diameter, 347,500 km, and it is considered the hottest part of the sun, with a temperature of 15,000,000 C or 27,000,000 F! The core also the area of the sun where solar energy takes place, which is considered to be a nuclear reaction. This nuclear reaction creates nuclei to fuse together to then produce alpha particles and the helium nucleus. This mass is expelled to become energy, and carried to the suns surface through the process of convection.