省エネ基準申請データを用いた非住宅建築物省エネルギー基準引き上げによる外皮・設備設計仕様変化の推計

篠原 里穂子; 山口 容平; 宮田 征門; 内田 英明; 下田 吉之

doi:10.3130/aije.90.96

ESTIMATION OF BUILDING ENVELOPE AND EQUIPMENT DESIGN CHANGES DUE TO ENHANCED ENERGY EFFICIENCY CODES FOR COMMERCIAL BUILDINGS

Rihoko SHINOHARA, Yohei YAMAGUCHI, Masato MIYATA, Hideaki UCHIDA, Yoshiyuki SHIMODA

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Keywords: Commercial Building, Building Energy Code, Building Envelope Design, Building Equipment Design, Cluster Analysis

JOURNAL FREE ACCESS

2025 Volume 90 Issue 828 Pages 96-105

DOI https://doi.org/10.3130/aije.90.96

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Abstract

This study analyzed the energy efficiency and specifications of commercial buildings newly constructed or renovated in the year 2018. Clustering of the sample data showed that 40% of the sample had relatively high performance across all specifications, with the remaining buildings having low performance in certain specifications. In addition, depending on the building usage, 22.5% to 60% of the buildings do not meet the building codes of the Building Energy Conservation Code, which has been updated in 2024. Based on the results, we discussed how design specifications would change as a result of this code revision.

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