Biogas power generation is a utilization technology that has emerged alongside the expansion of large?scale biogas plants and the increasing integration of biogas applications. Organic materials—such as crop straw, weeds, human and animal manure, municipal solid waste, sludge, urban sewage, and industrial organic wastewater—undergo decomposition and metabolism by a diverse, vast, and functionally varied community of microorganisms under anaerobic conditions, ultimately producing biogas. Using this anaerobically generated biogas in engines not only addresses environmental challenges in biogas projects, consumes large volumes of waste, protects ecosystems, and reduces greenhouse gas emissions, but also transforms waste into valuable resources, generating substantial thermal and electrical energy. This approach aligns with the environmental concept of energy recycling and delivers considerable economic benefits.

Natural gas distributed energy systems prioritize the generation of high?grade electricity through gas?fired power production, then fully utilize the low?grade waste heat for heating and cooling, thereby achieving energy cascade utilization tailored to user demands. Through scientific energy management and cascade utilization, these systems achieve a comprehensive energy efficiency of 70%?90% and an energy saving rate of 20%?40%. As a modern energy supply approach that delivers energy near load centers, they align with requirements for energy conservation, environmental protection, and the building of a resource?efficient society.