Comparison of environmental degradation in Hanwha 295 W and SunPower 320 W photovoltaic modules via accelerated lifecycle testing

R. Biggie, T. Lai, W. J. Huang, Barrett G Potter, Kelly Potter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Lifecycle testing of full-scale photovoltaic (PV) modules was conducted in a large-sized, accelerated-degradation chamber in our labs that enables full-solar-spectrum irradiance, temperature, and humidity control. In-situ measurement of both polycrystalline and monocrystalline silicon PV module energy conversion characteristics were examined under environmental lifecycle conditions representative of Tucson, AZ. Specifically, the performance degradation of a Hanwha 295 W polycrystalline PV module and of a SunPower 320 W monocrystalline PV module were evaluated and compared. Results indicate that the initial efficiency of the polycrystalline module and the subsequent annual degradation occurred within expected ranges for that system. In contrast, the single-crystal module exhibited both a significant decrease in PV module efficiency during the test cycle, and early evidence of environmentally-induced materials degradation across the module. The temperature and time-dependence of PV module behavior were extracted to provide insight into early-stage performance degradation under conditions approximating field-relevant environments.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9179
ISBN (Print)9781628412062
DOIs
Publication statusPublished - 2014
EventReliability of Photovoltaic Cells, Modules, Components, and Systems VII - San Diego, United States
Duration: Aug 20 2014Aug 21 2014

Other

OtherReliability of Photovoltaic Cells, Modules, Components, and Systems VII
CountryUnited States
CitySan Diego
Period8/20/148/21/14

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Keywords

  • accelerated lifecycle testing
  • Degradation

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Biggie, R., Lai, T., Huang, W. J., Potter, B. G., & Potter, K. (2014). Comparison of environmental degradation in Hanwha 295 W and SunPower 320 W photovoltaic modules via accelerated lifecycle testing. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9179). [917908] SPIE. https://doi.org/10.1117/12.2062205