Research on Evaluation Method of Comprehensive Energy System Benefit Considering Electric Energy Substitution Effect

At present, the phenomenon of resource shortage and serious environmental pollution in China has received widespread attention, and solving the energy problem is urgent. The strategy of replacing electricity is an important measure to promote the energy consumption revolution. Its implementation helps to implement China's energy strategy as a whole, reduce the use of fossil fuels such as coal, improve the level of clean energy use, and reduce air pollution. This article comprehensively reviews and summarizes the practical experience, research status, and development trends of electricity substitution at home and abroad based on literature review. Based on this, a quantitative calculation model and comprehensive evaluation method for the evaluation indicators of comprehensive energy system benefits are proposed, taking into full consideration the positive effects of electricity substitution. Divide the construction benefits of the comprehensive energy system into three categories: social, technological, and economic benefits. Determine the quantification and calculation model of evaluation indicators. Based on the subjective evaluation method of the triangular fuzzy hierarchy process and the objective evaluation method of the entropy weight method, propose a combination weighting method that effectively integrates indicator weights based on the minimum deviation of weight vectors; Combine the expected combination weights obtained with the matter element extension model to solve the benefit evaluation level and rating value of the comprehensive energy system construction plan. Through case analysis, the scientificity and rationality of this evaluation method have been verified, proving that electricity substitution work has a positive effect on energy conservation and carbon reduction in the park.