Descriptive Analysis of Energy Consumption in Korean Middle Schools

Seok-Ho Hwang

doi:10.22696/jkiaebs.20250032

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2025 Vol.19, Issue 6 Preview Page Next Page

Research Article

Descriptive Analysis of Energy Consumption in Korean Middle Schools 중학교 교육시설의 에너지 소비 특성에 관한 기술통계 분석

30 December 2025. pp. 369-380

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Abstract

This study examines energy use in Korean middle schools (2009~2022) using refined annual school-level panel data (~45,000 observations). We calculate total energy use, energy use per occupant, and energy use intensity (EUI), and assess distributions with mean, median, SD, IQR, histograms, and boxplots. Electricity dominated throughout (70~80%), with gas as a supplementary source (~15%), while heating/cooling areas expanded faster than total floor area, indicating deepening dependence on electricity-based systems. Scale effects emerged: smaller schools showed higher per-occupant use, whereas those exceeding 10,000 m² exhibited improved efficiency. The proportion of schools adopting renewables rose from 3.3% (2013) to 17.6% (2022), and the renewable share within adopting schools increased gradually. Leveraging a nationwide long-term panel, the study empirically identifies structural, regional, and scale-dependent patterns and provides baseline evidence to inform efficiency policies and support predictive modeling for sustainable school energy management. Regional variation is also observed, with certain provinces exhibiting consistently higher EUI levels than others. Because the renewable indicator reflects solar electricity in final-energy terms, it is not directly comparable to primary-energy-based installation mandates.

Keywords

Middle School

Energy Consumption

Descriptive Statistics Analysis

키워드

중학교

에너지사용량

기술통계분석

References

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Information

Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
Publisher(Ko) :한국건축친환경설비학회
Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
Journal Title(Ko) :한국건축친환경설비학회논문집
Volume : 19
No :6
Pages :369-380
Received Date : 2025-11-03
Revised Date : 2025-11-23
Accepted Date : 2025-12-03
DOI :https://doi.org/10.22696/jkiaebs.20250032

Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

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