Fuel Cells are source of power production as long as they get fuel supplement. Fuel cells produce power through electro-chemical reaction which does not involve any mechanical parts. Fuel cells possess characteristics like clean output, efficiency and less noise as compared to generators. Fuel used by the Fuel Cells is natural gas, hydrogen, methanol & various other types of fuels. The use of Fuel Cells in growing due to factors like; improvement in the performance factor like high torque, development of hydrogen-on-demand technology, wide number of applications (like drones, unmanned ground robots, and other commercial applications), etc.