Research on low-carbon evaluation of clean energy use in rural residential buildings based on Analytic Hierarchy Process method

As an important part of the construction industry, rural residential buildings are characterized by low energy utilization, unreasonable structure, and low consumption level, so it is particularly important to study the low carbon transformation and evaluation system. In this study, the coefficient of variation method was used to identify the important factors affecting the low-carbon transformation of rural residential buildings, and the evaluation system of low-carbonization of rural residential buildings was determined by Analytic Hierarchy Process (AHP), and the system was used in a rural residential building low-carbonization evaluation study. The results show that "Energy utilization," "Envelope structure," and "Economic factors" have obvious influence on the low carbonization of buildings, with the weights of 36.4%, 24.5%, and 19.5%, respectively. Among the secondary indicators, the top four weightings are "clean energy utilization rate" (0.152), "external wall insulation system" (0.090), "window performance" (0.088), and "electricity consumption" (0.084), which are the most critical factors influencing the low carbonization level of clean energy utilization in rural residential buildings. Finally, based on the constructed low-carbonization evaluation system, we propose targeted solution strategies to provide a theoretical basis for establishing an effective assessment system for the low-carbonization of clean energy in rural residential buildings.