PV-Module’s Backsheet Compositions Affecting PV-System’s Yield and Degradation

Medientyp: Elektronischer Konferenzbericht
Titel: PV-Module’s Backsheet Compositions Affecting PV-System’s Yield and Degradation
Beteiligte: Buerhop-Lutz, Claudia [Verfasser:in]; Pickel, Tobias [Verfasser:in]; Winkler, Thilo [Verfasser:in]; Stroyuk, Oleksandr [Verfasser:in]; Camus, Ch [Verfasser:in]; Neswal, M. [Verfasser:in]; Heindl, M. [Verfasser:in]; Peters, Ian Marius [Verfasser:in]; Hauch, Jens [Verfasser:in]
Erschienen: WIP, 2020
Erschienen in: WIP 1512 - 1516 (2020). doi:10.4229/EUPVSEC20202020-5CV.3.9 ; 37th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC, virtuell, Portugal, 2020-09-07 - 2020-09-11
Sprache: Englisch
DOI: https://doi.org/10.4229/EUPVSEC20202020-5CV.3.9
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Beschreibung: This study links chemical analysis of PV-module’s backsheet components with the monitored yield andvoltage of PV. WE investigated several PV-systems all with two or more module types and differing backsheet types. Weidentified three classes of backsheets with respect to their influence on module performance. First, double-fluoropolymersare robust and modules perform constantly well over years. Second, non-fluoropolymers, show approximately linearperformance and degradation and third, single-fluoropolymers show drastic performance losses, including inverter shutdowns. Humidity was identified as an important driving factor for the faster ageing process of modules with criticalbacksheets und isolation issues. A correlation between obvious backsheet defects, e. g. cracks or isolation issues andinverter shut-downs was not found.
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