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, B. G. Potter, K. Simmons-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 publicationReliability of Photovoltaic Cells, Modules, Components, and Systems VII
EditorsRebecca Jones-Albertus, Neelkanth G. Dhere, John H. Wohlgemuth
PublisherSPIE
ISBN (Electronic)9781628412062
DOIs
StatePublished - Jan 1 2014
EventReliability of Photovoltaic Cells, Modules, Components, and Systems VII - San Diego, United States
Duration: Aug 20 2014Aug 21 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9179
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

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

Keywords

  • Degradation
  • accelerated lifecycle testing

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Comparison of environmental degradation in Hanwha 295 W and SunPower 320 W photovoltaic modules via accelerated lifecycle testing'. Together they form a unique fingerprint.

Cite this