SWC_ A Study on the Economic Analysis of Zero Energy Building Using Solar Photovoltaic Energy in Korea

摘要

In South Korea, Zero Energy Building (ZEB) certification is currently being enforced to reduce building energy and greenhouse gas (GHG) emissions. In order to obtain ZEB certification, it is necessary to secure a self-sufficiency rate through renewable energy production based on annual primary energy requirements. At present, in the case of electric power transactions of distributed power in South Korea, market transactions are avoided because the burden of transaction and administrative costs for market transactions compared to profits from electricity sales is high. Under such a situation, if the performance of a general building improves in accordance with the ZEB certification standards, various additional costs will inevitably arise. Therefore, it is necessary to examine the economic feasibility of ZEBs by certification grade. In order to secure economic feasibility, this study reviews the means to secure economic feasibility through payback period (PBP), net present value (NPV), and sensitivity analysis to secure economic feasibility considering the simple payback PBP analysis that ignores discount rate and variables (passive additional cost, surplus power selling unit price, and renewable energy subsidy ratio) based on costs arising from energy saving. Zero Energy Building (ZEB); Certification; Distributed esources; Renewable Energy; Solar Photovoltaic Energy; Passive.