This project and investigation deal with renewable energy. Fossil fuels are a problematic issue for the environment and economy of the developed and under developing countries in recent years. This project tries to find a solution to convert all kinds of biomass to biogas. Then the economical and optimal operation of the process will investigate theoretically and practically to deliver the applicable biogas to industry. Here I am looking for a company, institute, or university to invest in my project and also the researchers who are interested in collaboration.