Contribution to a conference proceedings

FZJ-2021-00770

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png PV-Module’s Backsheet Compositions Affecting PV-System’s Yield and Degradation

Buerhop-Lutz, C. (Corresponding author)FZJ* ; Pickel, T.FZJ* ; Winkler, T.FZJ* ; Stroyuk, O.FZJ* ; Camus, C. ; Neswal, M. ; Heindl, M. ; Peters, I. M.FZJ* ; Hauch, J.FZJ*

2020
WIP

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Please use a persistent id in citations: http://hdl.handle.net/2128/27231  doi:10.4229/EUPVSEC20202020-5CV.3.9

Abstract: 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.

Note: funded by BMWi, COSIMA, FKZ: 032429A

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Contributing Institute(s):

1. Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien (IEK-11)

Research Program(s):

1. 121 - Solar cells of the next generation (POF3-121) (POF3-121)

Appears in the scientific report 2021

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