PV Lifetime Project: Measuring PV Module Performance Degradation: 2018 Indoor Flash Testing Results

Christopher Deline, Steven Rummel, William Sekulic, Joshua Stein, Charles Robinson, Bruce King

Research output: Contribution to conferencePaper

12 Scopus Citations

Abstract

Photovoltaic (PV) module and system performance degradation is being measured by periodic flash testing of fielded PV modules at three sites. As of early 2018, results from modules fielded in New Mexico and Colorado are now available. These data indicate that module degradation varies significantly between module types and can also vary between modules of the same model. In addition, degradation rates for some module types appear to vary over time. Great care is made to control for stability and repeatability in the measurements over time, but there is still a +/-0.5% uncertainty in flash test stability. Therefore, it will take several more years for degradation rate results to be known with higher confidence.
Original languageAmerican English
Pages771-777
Number of pages7
DOIs
StatePublished - 2018
Event2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) - Waikoloa Village, Hawaii
Duration: 10 Jun 201815 Jun 2018

Conference

Conference2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC)
CityWaikoloa Village, Hawaii
Period10/06/1815/06/18

NREL Publication Number

  • NREL/CP-5K00-73741

Keywords

  • degradation
  • lifetime estimation
  • photovoltaic cells
  • solar energy

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