Biogas, a RNG (renewable natural gas) commonly called biomethane, is produced by anaerobic digestion, a process in which bacteria convert organic plant and waste material into methane gas, carbon dioxide and other materials. The fuel produced is used for cooking and heating and can also be used to fuel automobiles and farm equipment. And as an added benefit, waste-water produced during the process is nutrient-rich and can be used as a fertilizer.
Biogas is well-known throughout the world, particularly among commercial industries, farmers and villagers in third-world and developing countries. Europe has been a forerunner in the western world for biogas production while the United States has only recently embraced the idea commercially, with approximately 100 biogas production plants in service as of 2016.
Taking the lead from small farm and household biogas production in China, India and Latin America, the DIY, prepper and off-grid communities in the U.S. are designing their own biogas digesters. Check out the links below to learn more about this simple method for producing a natural source of renewable energy.
Learn how to build your own biogas digester
YouTube video showing how to create a biogas digester using 55-gallon poly barrels and 275-gallon IBC totes.
EPA Guidelines and Permits
American Biogas Council
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