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2025 Vol.32, Issue 4 Preview Page

Research Article

Comparative Analysis of International Building Energy Operational Rating Systems for Korean Public Sector Real-Time Data Application

공공기관 실시간 에너지 데이터의 건물등급제도 활용을 위한 해외 운영등급 시스템 비교 연구

Hyun-A Ko1
,
Jong-Won Lee2*
고 현아1
,
이 종원2*
1Department of Management of Technology, Sungkyunkwan University, Suwon, Korea
2Department of Architecture, Keimyung University, Daegu, Korea
1성균관대학교 기술경영학과
2계명대학교 건축학과
*Corresponding Author
31 August 2025. pp. 486-496
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Abstract

The building sector accounts for 40% of global energy consumption, with performance gaps exceeding 200% between design expectations and actual operation. This study proposes an operational rating framework, leveraging Korea’s Public Sector Green Button system to address this gap. Through a systematic analysis of five international systems (the US, Australia, Singapore, the EU, and Japan) across data collection, algorithms, and institutional dimensions, we conclude that Korea’s AMI-based hourly data demonstrates leading capability requiring phased implementation. We propose starting with Singapore’s EUI-based approach, transitioning to US statistical models, while adopting Australia’s verification and the EU’s market mechanisms. Policy recommendations include: (1) standardizing data with quality control requirements; (2) implementing a phased methodology from EUI to regression models; (3) providing comprehensive support through assessor training and online platforms; (4) integrating the system with ZEB certification, green remodeling, and public sector ESG evaluation. This research provides an international framework for leveraging real-time energy data and presents empirical ESG policies for achieving carbon neutrality in public buildings by 2050.

Keywords
Building energy performance
Green Button
Real-time energy monitoring
Public sector energy data
Operational Rating
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Information
  • Publisher :The Korean Society of Living Environmental System
  • Publisher(Ko) :한국생활환경학회
  • Journal Title :Journal of The Korean Society of Living Environmental System
  • Journal Title(Ko) :한국생활환경학회
  • Volume : 32
  • No :4
  • Pages :486-496
  • Received Date : 2025-08-05
  • Revised Date : 2025-08-11
  • Accepted Date : 2025-08-12
  • DOI :https://doi.org/10.21086/ksles.2025.8.32.4.486
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