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Outdoor performance of CIGS modules at multiple temperatures over three years
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Paper Abstract

The performance and degradation rate of photovoltaic (PV) modules primarily depend on the technology type, module design and field operating conditions. The metastability is a known phenomenon in the CIGS (copper indium gallium diselenide) module technology and it depends on the light exposure and operating temperature. This work aims to understand the metastability influence on the performance of CIGS modules exposed outdoor at three different operating temperatures at a fixed insolation over three years. Two types of CIGS modules from two different manufacturers have been investigated in this study. The three different temperatures were achieved by placing three CIGS modules per manufacturer at three different airgaps on a south facing mock rooftop tilted at 20°. The airgaps were 3”, 1.5” and 0”, and the 0” airgap module was thermally insulated to obtain a higher operating temperature. Throughout the test period over three years, all the modules were maintained at maximum power point using a setup containing optimizers and power resistors. The performance characterizations were carried out before and after exposure using both outdoor natural sunlight and indoor solar simulator. The influence of superstrate type and installation height on the soiling loss have also been investigated.

Paper Details

Date Published: 17 September 2018
PDF: 9 pages
Proc. SPIE 10759, New Concepts in Solar and Thermal Radiation Conversion and Reliability, 1075905 (17 September 2018); doi: 10.1117/12.2326702
Show Author Affiliations
Afshan Qamar, National Univ. of Sciences and Technology (Pakistan)
Arizona State Univ. (United States)
Rafia Akbar, National Univ. of Sciences and Technology (Pakistan)
Arizona State Univ. (United States)
Ankil Sanghvi, Arizona State Univ. (United States)
Andrey Bednarzhevskiy, Arizona State Univ. (United States)
Liyuan Liu, Arizona State Univ. (United States)
Akash Raj, Arizona State Univ. (United States)
Sai Tatapudi, Arizona State Univ. (United States)
David Metacarpa, SUNY Polytechnic Institute (United States)
Rajalakshmi Sundaramoorthy, SUNY Polytechnic Institute (United States)
Govindasamy TamizhMani, Arizona State Univ. (United States)


Published in SPIE Proceedings Vol. 10759:
New Concepts in Solar and Thermal Radiation Conversion and Reliability
Jeremy N. Munday; Peter Bermel; Michael D. Kempe, Editor(s)

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