Title

Long-Term Performance Analysis Of Cigs Thin-Film Pv Modules

Keywords

CIGS; Outdoor testing; Reliability; Thin-film

Abstract

Current accelerated qualification tests of photovoltaic (PV) modules mostly assist in avoiding infant mortality but can neither duplicate changes occurring in the field nor can predict useful lifetime. Therefore, outdoor monitoring of field-deployed thin-film PV modules was undertaken at FSEC with goals of assessing their performance in hot and humid climate under high system voltage operation and to correlate the PV performance with the meteorological parameters. Significant and comparable degradation rate of -5.13% and -4.5% per year was found by PV USA type regression analysis for the positive and negative strings respectively of 40W glass-to-glass CIGS thin-film PV modules in the hot and humid climate of Florida. With the current-voltage measurements it was found that the performance degradation within the PV array was mainly due to a few (8-12%) modules having a substantially high degradation. The remaining modules within the array continued to show reasonable performance (>96% of the rated power after ∼ 4years). © 2011 SPIE.

Publication Date

1-1-2011

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8112

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.893864

Socpus ID

82055203328 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/82055203328

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