The document discusses a new technology called SERIGAS that produces clean natural gas from organic waste feedstocks. SERIGAS plants purify the produced gas to meet natural gas pipeline standards, with methane purity between 87-92%. The plants are compact and modular, requiring minimal on-site work and no civil works for capacities up to 400kg/day. Byproducts include organic fertilizers. SERIGAS is a carbon neutral technology developed over 8 years of research that can process any organic material into biogas to generate electricity while leaving little carbon footprint. The gas can be used for cooking, power generation, and SERIGAS plants are available in a range of sizes from household to municipal scales.