Solar energy is available for absolutely free of cost. Even though there are equipment and devices required for the generation of solar energy from the rays of sun, the cost is very low as compared to what we spend on fulfilling our energy needs.
One of the advantages of solar energy is that it can be used in the rural and remote areas as well. In these places, it is usually very expensive to deploy the electricity power grids and solar energy can be generated in ample amount here.
Solar energy can be extensively used for the purpose of charging devices which consume very little amount of energy, such as calculators and solar cell batteries.
This is probably the greatest benefit of using solar energy that it does not cause any kind of pollution. Even though the equipment, collectors and devices used are manufactured in big factories, there is no pollution generated during the process of generating solar energy from the heat coming from the rays of sun.
Solar energy is an infinite source of energy and we will never run out of it till the end of the world. On the other hand, other resources and oil reserves will last for as long as 40-50 years from now.
Solar energy is a renewable source of energy which can never get out of stock.