for the sustainable development in near future and it has changes the interest of science and research work towards the alternative and renewable bioenergy sources. As we moving in new generation, it is evident that humankind is increasingly dependent on electrical energy. Scientists are continuously searching for methods to generate electricity, effectively from resources such as water, chemicals, nuclear, solar energy and wind.
Bioenergy, derived from biological sources is the extensively used form of renewable energy. Different forms of bioenergy include biofuel (ethanol and biodiesel), bioproducts (antifreeze and plastics) and biopower (pyrolysis and fuel cells). Power plant systems like batteries and fuel cells both are able to produce electricity. Along with electricity production, batteries have the capacity to store it, but fuel cell does not have the capacity to store it. Instead, it uses biocatalysts for the renovation of chemical energy of organic matter to electrical energy (much like an engine) by using conservative electrochemical technology (Ghangrekar and Shinde, 2006) and will continue to operate as long as substrate is present in it. However, unlike internal combustion generators, fuel cells directly produce electricity without any intermediate; hence fuel cells are more efficient.