Research on coordinated development of urban energy system and economic system--Based on coupling coordination model

Energy provides an important impetus for urban economic growth, with 80% of the world's energy consumption concentrated in cities. With the acceleration of economic development and urbanization, China has become the world's largest consumer of energy. Based on the data of Chengdu, China, in 2009-2018, this paper constructs an urban economicenergy evaluation index system, and uses the entropy weight method and the coupling coordination model to analyse the coordinated development between urban economic growth and energy consumption. The results show that both the energy system and the economic system can be in a coordinated development in 2008 and 2014, and the energy system and economic system are basically in an uncoordinated development in other time periods. The development process of the coupling and coordination of energy and economic systems is generally a four-stage development: coordinated - uncoordinated - coordinated - uncoordinated. Therefore, based on the above research, it is proposed to promote the simultaneous optimization and development of urban energy systems and economic systems.