Energy utilization is unavoidable in every human life. There are many reasons for choosing alternative fuels instead of fossil fuels. Fossil fuels are polluting the environment, economically competitive and depleting fast. The population explosion has triggered the energy crisis. The increase in population has also resulted in an increase in vehicles, industries and the requirements for fossil fuels. Thus, the energy demand occurs due to three major reasons, one is the rapid increase in the global population, the second one is the sophisticated human lifestyle and finally the spiraling cost of fossil fuels. These factors necessitated the finding of alternative sources of energy, as they are environmentally friendly and cleaner sources of energy.