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2026 Vol.46, Issue 2 Preview Page

Research Article

A Study on the Methodology for Estimating Greenhouse Gas Reduction in Apartment Complexes Using Solar Power, ESS and Heat Pumps

태양광, ESS 및 히트펌프를 활용한 공동주택 온실가스 감축량 산정방법론 연구

Sung-Dae Cho1
,
Dong-Hun Lee2*
조 성대1
,
이 동헌2*
1Ph.D. Candidate, Graduate School of Convergence Technology and Energy, Tech University of Korea/Director, International Development Business Center, KTC
2Professor, Graduate School of Convergence Technology and Energy, Tech University of Korea
1한국공학대학교 융합기술에너지대학원, 박사수료/한국기계전기전자시험연구원 국제개발사업센터, 센터장
2한국공학대학교 융합기술에너지대학원, 교수
*Corresponding Author
20 April 2026. pp. 65-82
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Abstract

As the Republic of Korea strives toward its “2050 Carbon Neutrality” goal, the building sector—particularly apartment complexes—faces an urgent need for innovative greenhouse gas (GHG) reduction strategies. This paper proposes a comprehensive methodology for estimating GHG reduction by implementing a synergistic system that integrates photovoltaic (PV) power, Energy Storage Systems (ESS), and Heat Pump technology. This study first analyzes the limitations of traditional heating methods. It develops an integrated model in which PV-generated electricity, managed via an ESS, powers high-efficiency heat pumps for space heating and domestic hot water. The primary focus of this thesis is to establish a standardized estimation methodology compatible with the Korea Emissions Trading Scheme (K-ETS) and the External Project framework. Key technical contributions include defining the project boundary, calculating baseline emissions from conventional grid and gas boiler use, and determining project emissions using the integrated system’s operational data. Furthermore, the study details a robust monitoring methodology that identifies critical parameters such as PV output, ESS efficiency, and heat pump COP. The proposed framework provides a technical basis for certifying carbon credits in the residential sector and offers a practical tool for policymakers to incentivize sustainable energy transitions in urban environments.

Keywords
GHG Reduction
Apartment Complexes
Photovoltaics
ESS
Heat Pump
Methodology
K-ETS
키워드
온실가스 감축
공동주택
태양광 발전
에너지저장장치
히트펌프
방법론
배출권 거래제
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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 :2
  • Pages :65-82
  • Received Date : 2026-03-03
  • Revised Date : 2026-04-05
  • Accepted Date : 2026-04-17
  • DOI :https://doi.org/10.7836/kses.2026.46.2.065
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