도시의 지속가능성을 위한 주택 건물에너지 분석 연구: 에너지 소비특성과 소비절감 행위모델 분석을 중심으로

Abstract

To prepare for climate change and energy depletion, Korea has been striving to strengthen its greenhouse gas reduction targets and minimize national energy consumption. Concerning the construction sector, improvements in the energy efficiency of buildings have been promoted by the implementation of the ‘Total Energy Use Rate Restriction for Buildings’ in 2011, the ‘Obligation for Meeting Passive House Standards’ in 2017, as well as the upcoming ‘Obligation for Realizing Zero-energy Housing’ in 2025. The consecutive implementation of new regulations necessitates a review of how these regulations and systems can be utilized effectively to realize the goal of minimizing energy consumption, especially in terms of construction. Korea’s goal is to achieve a 33% reduction in greenhouse gas emissions by 2030 through improvements in the energy efficiency of buildings and the construction sector. In this study, we propose a system utility plan and policy for improving the energy efficiency of residential buildings for a sustainable city based on a survey regarding the characteristics of energy use in buildings. The survey was conducted on 500 individuals via the internet, and the results were analyzed using structural equation modeling(SEM) and the theory of planned behavior(TPB). Analysis results show that improvement in the energy efficiency of buildings is heavily influenced by home ownership. Among the factors for minimizing energy use in buildings, ‘energy saving practice’ was highlighted as the most important factor, while ‘effective energy policy’ was found to have the most significant influence coefficient. According to the TPB analysis, improvements in the energy efficiency of buildings are affected at similar levels by three factors: attitude, subjective norms, and behavioral awareness. The intention to use high-efficiency products and adopt energy-saving practices were most impacted by individual attitudes. Based on these findings, we present strategies to improve the system, such as implementing a policy that provides different levels of support depending on home ownership, providing incentive and support to the efforts for improvement of building efficiency, and establishing specific programs for promoting the use of high-efficiency products and energy-saving practices.