Proposal of Power Estimation Model of Color BIPV System

Abstract

The Korean government is actively promoting mandatory zero energy building (ZEB) implementations to achieve its goal of reducing greenhouse gas emissions. Photovoltaic (PV) technologies are hence being applied in the construction of ZEBs, and building-integrated photovoltaic (BIPV) systems are in the spotlight. BIPV systems are presently being integrated in the building envelopes as parts of the buildings, such as facades, roofs, and windows, to produce on-site clean electricity without requiring additional space. However, the monotonous black-colored BIPV modules are not popular because they affect the aesthetics of the buildings. To mitigate this problem, studies have been conducted on colored BIPV modules to improve the aesthetics of buildings by implementing various colored components. Power estimation is an important part of judging the faults in PV systems. Therefore, this paper proposes a performance estimation model using the characteristics of color BIPV systems based on I-V curve measurements. A color BIPV and meteorological monitoring systems were installed to acquire field survey data. The goal of this study was to verify the superiority of the proposed model by comparison with the power estimated using a simulation tool. The proposed model with high-accuracy power estimations is expected to help diagnose the performance of the BIPV system.