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2026 Vol.46, Issue 4 Preview Page
Evaluation of Available Façade BIPV Area and Power Generation for ZEB Certification of Apartment Buildings

ZEB 인증을 위한 공동주택 입면 BIPV 가용 면적 및 발전량 평가 연구

Ru-Da Lee1
,
Min-Joo Choi2
,
In-Ho Kang3
,
Dong-Su Kim4
,
Jong-Ho Yoon4*
이 루다1
,
최 민주2
,
강 인호3
,
김 동수4
,
윤 종호4*
1Postdoctoral Researcher, Hanbat University Industry–University Cooperation Foundation
2Ph.D. Candidate, Department of Architecture Engineering, Hanbat National University
3Professor Emeritus, Department of Architecture, Hannam University
4Professor, Department of Architecture Engineering, Hanbat National University
1국립한밭대학교 산학협력단, 박사후 연구원
2국립한밭대학교 건축공학과, 박사과정
3한남대학교 건축학과, 명예교수
4국립한밭대학교 건축공학과, 교수
*Corresponding Author
30 August 2026. pp. 29-41
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Abstract

With the recent strengthening of mandatory zero-energy building certification (ZEBc) requirements, Building-Integrated Photovoltaic (BIPV) systems have become increasingly important as a strategy for overcoming the limited rooftop area of apartment buildings and enhancing energy self-sufficiency. This study systematically quantified façade dimensions according to residential unit type (26, 37, 46, and 55 m2) by analyzing the design drawings of 67 LH apartment complexes in Korea. Standardized module configurations were derived for each façade section to maximize the available installation area, and the corresponding installation capacity and contribution to energy self-sufficiency were evaluated. The façades were classified into five sections: side façades (A), upper and lower window sections (B), inter-window wall sections (C), inter-unit boundary walls (D), and side walls (E). The results showed that the side façade section (A) was the predominant installation area in rental housing, accounting for up to 28.2% of the total available façade area, whereas the upper and lower window sections (B) and inter-window wall sections (C) showed greater utilization potential in sale-type housing. In particular, the 55 m2 sale-type housing accommodated more than three times as many installable PV cells as rental housing, indicating significantly greater power-generation potential. Based on these results, the analysis of energy self-sufficiency according to ZEB certification grade revealed that ZEB Grade 5 could be achieved by partially utilizing rooftop and façade areas, with only 0.04–0.09 kWp of PV capacity required per household. However, for ZEB Grade 2 or higher, the required PV capacity for the 37 and 46 m2 housing types exceeded the capacity that could be accommodated within 100% of the available household façade area, indicating that additional installation areas, such as side walls, are essential. This study provides an initial investigation into expanding BIPV applications through façade standardization. Future research should quantitatively evaluate the power-generation performance and energy potential of each façade section.

Keywords
Zero Energy Building certification, ZEBc
Apartment Building
Building-Integrated Photovoltaic, BIPV
Façade area
Energy self-sufficiency rate
키워드
제로에너지 건축 인증
공동주택 건물
건물일체형 태양광
입면 영역
에너지 자립률
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Information
  • Publisher :Korean Solar Energy Society
  • Publisher(Ko) :한국태양에너지학회
  • Journal Title :Journal of the Korean Solar Energy Society
  • Journal Title(Ko) :한국태양에너지학회 논문집
  • Volume : 46
  • No :4
  • Pages :29-41
  • Received Date : 2026-05-16
  • Revised Date : 2026-06-02
  • Accepted Date : 2026-06-30
  • DOI :https://doi.org/10.7836/kses.2026.46.4.029
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