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Electrochemical aging effects in photovoltaic modulesLeakage currents were experimentally measured in PV modules undergoing natural aging outdoors, and in PV modules undergoing accelerated aging in laboratory environmental chambers. The significant contributors to module leakage current were identified with a long range goal to develop techniques to reduce or stop module leakage currents. For outdoor aging in general, module leakage current is relatively insensitive to temperature fluctuations, but is very sensitive to moisture effects such as dew, precipitation, and fluctuations in relative humidity. Comparing ethylene vinyl acetate (EVA) and polyvinyl butyral (PVB), module leakage currents are much higher in PVB as compared to EVA for all environmental conditions investigated. Leakage currents proceed in series along two paths, bulk conduction followed by interfacial (surfaces) conduction.
Document ID
19870007007
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mon, G. R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Proceedings of the 26th Project Integration Meeting
Subject Category
Energy Production And Conversion
Accession Number
87N16440
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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