In past, great people like Socrates have mentioned about the benefits we get from sun. Romans and Greeks have strategically built their houses facing south, so that they can take the advantage of sun’s heat in winter. They have even used passive energy of sun in their houses and other building architecture in their bath houses to warm up the water. Even now, in some buildings people use this type of architecture. With the help of the solar energy, they save energy. If we utilize the solar energy, we will be able to save fuel and wood we use. People can make use of the solar energy in turn to reduce the electricity cost thus helping to conserve fuel that will be used in electricity generation.  Even today it is very easy to build solar panels with easy to follow guides online.