공동주택에서 PV모듈에 따른 태양광발전시스템의 경제성 평가

Abstract

This study analyzed the characteristics of the PV modules being applied to apartments and the photovoltaic power generation systems using them, and compared/evaluated the economic efficiency of the photovoltaic power generation systems depending on PV modules by dividing them into ones installed(crystalline) in the balcony of apartments and ones applied(amorphous) directly to windows and doors. As a result of economic evaluation for the systems installed simply in balconies(crystalline) that have high power generation efficiency but cause large heating on the back and have no transparency, it was analyzed that the initial investment cost can be recovered in 22 years(Case1-1) or 24 years(Case1-2), generating profits of 47,776,000KRW(Case1-1) or 12,001,000KRW(Case1-2) during the analysis period(25 years). On the other hand, for the systems(amorphous) that can be applied directly to windows and doors because of having transparency and causing less rear heating, it was analyzed that the life cycle cost(including savings) is 162,255,000KRW(Case2-1) or 131,226,000KRW(Case2-2) and it is difficult to recover the initial investment cost in the analysis period(25 years). In addition, it was analyzed that it is necessary to secure power generation efficiency of at least 15%(Case2-1) or 20%(Case2-2) to apply a system of window and door type(amorphous) that enables transparency and viewing to secure a residential performance.