Performance Assessment of Sputter-Coating- Colored BIPV Modules Through Field Test

Abstract

To assess the performance and characteristics of colored building-integrated photovoltaic (BIPV) modules, a comparative assessment of empirical performance was conducted on colored BIPV modules (gray, blue, and orange) and general BIPV module. These modules were installed on the south-facing slope (30°) for comparative assessment through a field test. Monitoring data were collected every 10 min from December 20, 2019 to January 21, 2020 and used to performance and characteristics analysis. Performance ratio and module efficiency were utilized during performance indexing for comparative assessment. For general BIPV modules, the operational efficiency was analyzed at 16.63%, whereas for colored BIPV modules, 13.70% (gray), 15.12 % (blue), and 14.49% (orange) were analyzed. It was discovered that the efficiency reduction caused by transmission losses owing to the application of colored cover glasses were 17.74% (gray), 9.05% (blue), and 9.86 % (orange), under field testing conditions. These values turned on an additional 7% reduction in efficiency for gray BIPV modules, compared to the degradation resulting from transmission drop (gray: 10.87%, blue: 8.99%, and orange: 9.02%) calculated using the efficiency of each module in standard test conditions (STC). Performance ratio analysis resulted in the following values: 0.92 for general BIPV modules, and 0.85 (gray), 0.91 (blue), and 0.91 (orange) for colored BIPV modules. As demonstrated by the above results, modules with a colored cover glass may differ in their operational performance depending on their color, unlike general modules. Therefore, in addition to the performance evaluation under STC, additional factors of degradation require consideration through field test.

Study on Screen Printable Color Paste Formulation for Color Silicon Solar Modules

“…The relative photovoltaic conversion efficiency of a color silicon solar module with the green light interference pigment concentration of 10 wt% achieved in this study is comparable to such a color silicon solar module fabricated using a vacuum deposition process, which exhibits the relative photovoltaic conversion efficiency of approximately 90% 9) . Comparing to the previous results in Refs .…”

“…The screen printing method for coloring the front glazing of BIPV is considered a simpler and more economical method than the vacuum deposition process 9) . In this sense, it can be concluded that the in-house developed color paste E is suitable for the screen-printing method for coloring the front glazing of BIPV, which would be regarded as a breakthrough in the PV industry 11) .…”

“…The development of colored BIPV with high aesthetic value has been necessitated by the public and the architects in urban design [5][6][7] . Several attempts have been made to endow BIPV with colors that are realized with multireflection coatings using a vacuum deposition process [8][9][10] . Monocrystalline silicon solar cells with the multiple layers of anti-reflection coatings (ARC) for green color have the averaged relative photovoltaic conversion efficiency of 85.7% 11) .…”

A Study on the Properties of Encapsulants to Enhance the Flame Retardant Properties of BIPV Modules

“…하지만, 국내의 경 우 제한된 국토의 면적으로 태양광 발전을 위한 공간 확보에 어려움이 있다. 따라서 이를 극복하기 위하여, 영농 형 태양광 4) , 수상 태양광 5) , 염전형 태양광 6,7) , 건물일체형 태양광 [8][9][10] 나타나 있다. 3).…”