Energy plays a vital role in our daily life without which we can nots ervive more than few days. We all require one form or the other form of energy to meet our daily needs, to keep ourselves alive and to perform various operations in our daily life which has become absolutely necessary. Further, use of traditional energy sources life wood, coal, oil is depleting day by day. Therefore, there is a need to find alternative sources of energy. The important source of energy are Solar, Wind and Hydel which are also know as Green energy because it do not creates any pollution.