The global economy thrives on energy. Affordable energy directly contributes to increase productivity, reducing poverty and improving betterment of life. Global population is increasing day by day, which, in a way is leading to the utilization of natural resources and fossil fuels. Concentrating on the limited stock of fossil fuel, efforts have been in full swing to search for sustainable alternative to petroleum without adversely affecting the supply of food with keeping the environment clean (GO GREEN).

Biodiesel from algae is the most promising renewable biofuel derived from biomass with the potential to completely displace petroleum-derived fuel without adversely affecting the supply of food and other crop products, with keeping the environment pollution free. An alga grows naturally in entire world. Under optimal conditions, it can be grown in massive, almost limitless in amounts, requires saline or waste water or sea water, waste / rocky land. So this research talks about 1) reasons for selection of algae for production of biodiesel(third generation) ,2) comparison of various algae cultivation methods, various algae harvesting techniques, different algae to oil extraction methods and different techniques for oil to biodiesel conversation ,and 3) comparison of various pyrolysis processes. 20% yield is already available with the SLOW PYROLYSER (already designed) according to the available technology in India (MAKE IN INDIA). Comparison of algae and obtained biodiesel from algae will be made with existing diesel (as per ASTM standards).

Analysis of exhaust gas and its comparison with BS-IV is shown. Ultimately algae biodiesel is proven as clean, cost-effective & affordable renewable fuel for energy production for all commercial, defense vehicles and power plants. Thus algae biodiesel may address current burning issues of the state as well as of country like global warming, treatment of sanitation/waste water, rural development via creating lots of employment (MUKHYAMANTRI YUVA SWAVALAMBAN YOJANA), carbon sequestrations etc.