Indonesia has been facing the fuel energy problems in some parts of the country, especially in rural areas. In order to reduce dependence on commercial energy, steps have been taken to develop an alternative source, such as biogas. The main constraints for installing a digester, however, are the initial investment cost and the competition over kerosene. In this paper, the application of an anaerobic process for biogas production from cassava solid waste, water hyacinth, and manures are explained