| 요약2 |
The purpose of this study is to analyze the effect of zero energy building certification, which will be implemented in apartment housing as from 2025, on the selection of heat sources for apartments. The capacity, area, and initial investment cost of each renewable energy were analyzed according to the heat source in order to meet energy self-sufficiency rate of 20%, which is required for zero energy building certification. In order to produce energy that meets self-sufficiency rate of 20%, electricity as well as heat energy must be produced and apartment heating systems must be converted from individual to central supply heating. The photovoltaic system is easier compared to other systems in terms of utilization and energy distribution. However, this system requires significant installation area and is limited by various other factors, such as, location, direction, and surrounding environment. The ground source heat pump of the photovoltaic system has the smallest initial investment cost compared to other renewable energy systems, but in order to use heat energy it must be supplied to the central supply heating. Besides, fuel cells have the smallest capacity and installation area, but are not subsidized and represent the highest initial investment cost. |