The abundance of sunlight that is available the world over should be harnessed to generate power, since that happens to be the safest and greenest of all powers. The solar power could be used in lighting the highway, at home, in industry and in running an automobile also. Other forms of non conventional energy should also be tapped such as the wind mill and the bio-fuels to benefit mankind in the long run. In US, the government encourages the use and installation of the photo-voltaic solar energy system by extending friendly loans for buying the system, which works successfully in all climates.