Solar panels in space could cut Europe's renewable energy needs by 80%
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cross-posted from: https://programming.dev/post/36081990
So could a fucking Dyson sphere. This article is PopMech-tier speculative trash. A flying car in every driveway, any day now since the 1960s…
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Back of the napkin math:
Largest solar sail (much lighter than panels, but doesn't produce electricity) 2000 sq meters
200w/sq meter
400kwp
Also iirc the space solar farms plans I've seen call for re radiating the energy back via microwaves to dedicated receiving towers on the ground
Yeah I've seen that. Microwave power beaming would work in theory it's just electromagnetic radiation after all. But the vast majority of it is going to get absorbed by water molecules, because that's what microwave radiation does, that's why it cooks your food.
They're probably going to bake a lot of seagulls as well.
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cross-posted from: https://programming.dev/post/36081990
This is an idea from the 1960s back when they thought solar panels would be like computer chips and remain super expensive in terms of area but become exponentially better at the amount of sunlight they could convert into electricity.
It makes absolutely zero sense to spend billions of dollars putting solar panels in space and beaming the power back to earth now that they are so cheap per unit area. The one thing you could argue a space based solar array could do would be to stretch out the day length so you need less storage, but that's easier to accomplish using long electrical cables.
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cross-posted from: https://programming.dev/post/36081990
Countries will do everything except build nuclear power plants ig.
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cross-posted from: https://programming.dev/post/36081990
Ah yes now we just need a really long wire
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This energy would then be transmitted to one or more stations on Earth. It is then converted to electricity and delivered to the energy grid or batteries for storage.
How is the energy transmitted to Earth?
We just need an elevator to the stars! With a really long cable
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cross-posted from: https://programming.dev/post/36081990
lol, what an insane idea...
A physical cable back to Earth is impossible, otherwise we'd already have space elevators.
Any other wireless transmission would have all the same weather problems and energy losses, it would be WAY cheaper to just build more solar panels on the ground.
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