Energy efficiency evaluation method for public buildings based on energy efficiency improvement

Systematic assessment of energy efficiency of power users in public buildings can help power users quickly determine the weak links of energy use and realize energy efficiency improvement calculation and modeling. However, mostly it is difficult to construct an objective evaluation system for public buildings due to the number and types of energy-consuming equipment for public buildings, the complexity of energy consumption and the wide range of social benefits. This paper proposed a set of comprehensive evaluation methods for energy efficiency of power users in public buildings. By analyzing the complex relationships among energy efficiency indexes, a comprehensive evaluation index system with multi-level and multi-dimensional characteristics is constructed from three aspects. At the same time, a TOPSIS-RSR energy efficiency evaluation model is proposed, which can solve the segmentation ordering of multi-user energy efficiency evaluation. By introducing entropy weight method to solve the problem of relying too much on the subjective experience of decision makers, the objective weight of each index is calculated, and the energy efficiency evaluation ranking of several similar users is given. Finally, 22 public buildings in a certain area are taken as examples to verify the rationality and feasibility of the proposed model and its superiority compared with other algorithms. The analysis shows that the evaluation results obtained by using this model can fully reflect the energy efficiency status of different power users, and provide an important basis for improving energy efficiency.