The Household Biogas Plant is an accessible and low-cost solution that allows users to construct their own small-scale biogas digester using basic plumbing skills and locally available materials. With detailed open-access guidelines, households can build a functioning anaerobic digester from parts commonly found in hardware stores, such as PVC piping, plastic tanks, and valves.
The plant transforms kitchen waste, animal manure, or other organic material into biogas for cooking or heating, while producing a nutrient-rich slurry suitable for use as fertilizer. It is particularly valuable in rural or peri-urban settings where energy access is limited and organic waste is abundant.
This self-build system empowers users by reducing dependency on fossil fuels, cutting waste, and improving food-energy loop efficiency. The technology is often supported by NGOs, grassroots innovators, and online platforms sharing manuals and video tutorials.