County Energy Internet can solve the problems of low comprehensive energy efficiency and insufficient utilization of clean energy in rural energy system. Reasonable and scientific evaluation is an important condition to promote its steady development. This paper constructs a comprehensive benefit evaluation system of county energy Internet covering reliability, economy, ecology, elasticity and sociality. Then, considering the relationship between the indexes, the G1 method is modified to obtain the subjective weight, the coefficient of variation (CV) method is used to obtain the objective weight, and the minimum information identification method is used to obtain the combined weight. Finally, the idea of approaching the absolute ideal solution is introduced, the absolute ideal solution is set, and the generalized grey absolute correlation evaluation method is formed. An example is used to verify the effectiveness of the county energy comprehensive benefit evaluation method.
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