Issue
EPJ Photovolt.
Volume 17, 2026
Special Issue on ‘EU PVSEC 2025: State of the Art and Developments in Photovoltaics', edited by Robert Kenny and Carlos del Cañizo
Article Number 15
Number of page(s) 7
DOI https://doi.org/10.1051/epjpv/2026007
Published online 17 March 2026

Supplementary Material

Fig. S1: Development of outdoor performance of two new (top) and two UV-aged (60 kWh/m2) PV modules of Type A. The dots correspond to the indoor power measurements at STC after outdoor exposure.

Fig S2: Spectrum of light source used in accelerated UVID tests.

Fig. S3: Overview on mean degradation observed in PMPP (top) and VOC (bottom) after indoor UV test (green) or outdoor exposure (blue) at four different locations: Site 2, Type B (left); Site 3 and 4, Type C (middle) and Site 5, Type D (PERC, right). Please note that the y-axes are scaled differently. In contrast to Figure 3 of the main manuscript, light with a wavelength ≤400 contributes to the UV dose in this analysis.

Fig. S4: Exemplary electroluminescence images of Types C and D after UV exposure both indoors and outdoors.

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© P. Gebhardt et al., Published by EDP Sciences, 2026

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