Emergy Analysis of Typical Centralized biogas production project：Case Study in Hebei

This paper selects the typical straw energy utilization model, large and medium-sized centralized biogas production mode. It is found that under the current capacity load, the eco-economic indicators, sustainable development indicators, environmental load indicators have their own advantages and disadvantages. Compared with coal power, the model has high renewability and low environmental load. The model is in full compliance with the environmental protection requirements of the current rural ecological civilization construction in terms of environmental indicators. But it does not have long-term sustainability because economic indicators and sustainability indicators are not good. Especially in the case of severe low load capacity, the economic and sustainability are relatively poor, but with the release of production capacity, assuming 100% capacity load, the economics and sustainability are greatly improved. A certain gap needs to increase government intervention and support.