Title Assessing the Accuracy of Energy Consumption Prediction Models for Elementary Schools Through Classroom-based Group Segmentation
Authors 정창헌(Cheong, Chang Heon) ; 황석호(Hwang, Seok-Ho) ; 김지영(Kim, Jiyeong)
DOI https://doi.org/10.5659/JAIK.2024.40.5.157
Page pp.157-164
ISSN 2733-6247
Keywords Elementary school; Energy consumption estimation model; Number of classes; Number of students
Abstract This study explored whether classifying elementary schools by size could improve the accuracy of predicting energy consumption. Analyzing energy use across 18,539 data points from various elementary schools, it became apparent that annual energy consumption patterns differed between schools with fewer than 10 classes and those with more than 10 classes. Consequently, prediction accuracy improved when schools were categorized into two groups based on size. Among the models proposed, multi-linear regression, which used the number of classes and students as explanatory variables and annual energy consumption as the response variable, provided the most accurate predictions. A simpler model that employed linear regression with only the number of classes also showed comparable accuracy. In contrast, a model using energy consumption per student had the lowest predictive power. A limitation of this study was the limited access to various explanatory variables, which could have contributed to the lower accuracy in some cases. Future research aims to address this by incorporating a broader range of explanatory variables to refine the prediction model.