Solar panels are mostly black. Do they reflect more sunlight back into space tha... | Hacker News

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		jbay808 on July 8, 2021 \| parent \| context \| favorite \| on: Why North America's killer heat scares me Solar panels are mostly black. Do they reflect more sunlight back into space than what was under them?

zbrozek on July 8, 2021 [–]

Usually not, and certainly not as currently designed. Hence the notion of flipping to a mirrored side in case of excess electricity, or having some fancy coating stack that manages to reflect everything which is not absorbed by the cell.

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