PV시스템 적용 공동주택의 에너지 제로화를 위한 적정 건축-규모 검토

Abstract

Energy consumption in building sector in South Korea is about 20~30%. Thus, net zero energy building became a social issue to reduce national CO2 emission and meet the national trend of climate mitigation. This study evaluates the appropriate size of net zero energy apartment building. PV(Photovoltaic) system is considered as an applicable renewable energy source for apartment buildings. Total energy consumption including private and public use is considered as a baseline. Energy evaluating method for apartment by Korean building code is slightly modified to reflect energy consumption for public use. Annual electricity generation is evaluated by using RETScreen program. The efficiency of PV panel is 13.5%. The results show the PV system cannot afford meet the energy demand in baseline apartment building. PV system only can fully supply energy for a residential unit. The results indicate that the policy to generalize zero residential buildings of South Korea, may only works in detached house sector. In order to establish net zero energy apartment, advanced energy mix should be considered.