신재생에너지설비 적용을 통한 공동주택의 에너지 제로화

The integration of passive elements in building design is proven to lead to minimization of energy loads imposed to a building. Nowadays, with one step forward, much effort is made to achieve zero energy in multi-house by introducing new and renewable energy facility to a building. The present study aimed at estimating the cost for renewable energy facility adopted to achieve zero energy in a multi-house after calculating the present cost for energy consumption as well as energy loads at the existing multi-house. At the same time the study evaluated the reduction effect in energy load and cost in cases of integration of passive design and high efficient energy-related equipment and materials. As a result it was analyzed that cost reduction and cutdown of energy load be achievable up to approx 50% as a whole. In an attempt to recognize the initial investment on introduction of renewable energy equipments and its type and payback period, it was found that what needs the longest payback period is solar energy generating equipment with up to 57 years, while the shortest is geothermal power generating equipment with 8~9 years.