Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

In this study, the possibility of achieving a zero-energy building certification was analyzed when installing a PV module on the roof of an apartment complex at the current energy performance level in order to prepare a countermeasure to achieve a zero-energy building through minimal additional planning. The energy performance of the current new apartment complexes was found to correspond to the 1~1⁺ grade. Based on the current status analysis results, standard models were developed, and the error rate was found to be within 5%. In order to achieve the ZEB5 class, it is found that 0.011~0.014 kWp/㎡ for a district heating apartment and 0.021~0.023 kWp/㎡ for an individual heating apartment is necessary. When examined compared to the rooftop area, in the case of a district heating apartment, it could sufficiently achieve the ZEB5 class by installing a PV module on the roof. However, in the case of an individual heating apartment, more than 68% of the rooftop area needs to be installed, and it is necessary to preferentially lower the primary energy consumption through strengthening the building performance.