this post was submitted on 17 Jul 2025
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Hey, question for some solar panel expert.

Would it be possible to create a solar panel in the form of foil? I know flexible panels exists but I've only seen ones embedded in plastic like this:

Is the plastic somehow necessary for power generation or could the solar panel layer be sprayed directly on some sort of foil?

Or to put it another way: how densely could we pack a solar panel if we didn't care that much about durability?

Let's say I just want something that will last a month and maybe 100 unfolding-folding cycles. Would it be possible to fit it a box like this:

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[–] NihilsineNefas@slrpnk.net 1 points 17 hours ago

If strength and weight wasn't an issue then compact folding is entirely possible, considering how they've been using foldable solar panels on satellites since the early days of spaceflight

A rolled panel however would have to use very thin and small cells, which would be less efficient