Evaluating the comprehensive benefit of hybrid energy system for ecological civilization construction in China

Abstract

There are obvious ecological benefits of a hybrid energy system (HES) with its advantages of energy resources cascade utilization and multi-energy supply. With the increasing attention to ecological civilization (EC) construction in China, the HES has attracted more and more attention. Constructing HES projects that meet the requirements of EC is meaningful to government policy implementation and corporate social responsibility performance. There are a lot of studies on the benefit evaluation of HES, but all of them lack pertinence to EC construction, and the research results are insufficient to promote EC construction. Therefore, this paper evaluates the comprehensive benefits of HES in close combination with EC construction. Firstly, the connotations of EC and HES and their relationship are analyzed, and the evaluation criteria system of HES based on EC is established. Secondly, the group fuzzy analytic hierarchy process (GFAHP) is introduced to calculate the criteria weights and find out the important indicators. Thirdly, an improved model combining fuzzy synthetic evaluation (FSE) and the cloud model is introduced for the calculation of the EC comprehensive benefits of HES. Finally, the feasibility of the GFAHP–Cloud–FSE model in this paper is verified through a case study. The focuses of general HES projects and the case study are confirmed. This work provides suggestions for the government to evaluate and supervise HES projects for better EC construction, and it is helpful for enterprises to meet the government requirements for EC and fulfill social responsibilities.