Table 1

Quantity of PV modules investigated using different methods, visual inspection (VIS), serial number scanning (SN), Infrared imaging (IR), UV fluorescence imaging (UVF), near infrared absorption spectroscopy (NIRA), electroluminescence (EL), current-voltage measurements (IV).

Power plant VIS SN IR UVF NIRA EL IV
Brazil 1 183 1512 66 63 84 4 15
Brazil 2 584 584 0 4 360 4 0
Germany 266 266 2545 5 156 0 0
Total 1033 2362 2611 72 600 8 15

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