Fig. 12
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Example of two modules affected by punctual soiling (Soiling 1) imaged at different irradiances and at 8 m drone altitude (<1 cm/pixel moduel spatial resolution). Top: Bifacial PV module with buttterfly configuration and 144 half-cut cells. Bottom: Monofacial PV module with 60 6 × 6 inch cells. IV of the module acquired at approximately 600 W/m2.
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