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Old 07-24-2020, 10:51 AM   #1
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Solar panel , one black square

New to solar, why is one square black.
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Old 07-24-2020, 05:29 PM   #2
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The anti-reflective coating may not have been applied to that cell.
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Old 07-24-2020, 06:08 PM   #3
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The anti reflective coating goes on the glass, not the cell. The SiN (it gives solar cells thier color) coating could be thicker on that cell. It could have been a reworked cell at the factory and they did not have a color match.

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solar panel, solar, black

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