Economic Evaluation Method of Integrated Energy System

With the decline of fossil energy and the deterioration of the global environment, energy companies are transforming from traditional energy system to integrated energy system (IES). IES is a platform containing multiple traditional energy supply and can realize the conversion between different energy sources. Although the integrated energy system is highly competitive, its economic benefits remain to be investigated. In this study, an economic evaluation model is developed considering the internal energy conversion relationship of the system, major costs and sources of revenue. This paper presents a set of scientific and complete economic evaluation indexes, and the core economic indicators are proposed by sensitivity analysis method. The comprehensive weight is determined by subjective weight and objective weight, which are based on analytic network process (ANP) and anti-entropy weight method, respectively. Combined with a typical IES in China, its economic evaluation results are given. In this study, the economic evaluation and comparison of an IES are carried out to verify the correctness and effectiveness of the model. The output of the model can help analyze the implementation effect of the project and identify the key factors that affect the economic benefits of the energy system.