• Kissaki@feddit.org
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    23 hours ago

    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?

    • phutatorius@lemmy.zip
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      4 hours ago

      And keep in mind that, if they don’t do it, the sun transmits energy to the earth for free.

    • Echo Dot@feddit.uk
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      22 hours ago

      Yeah this article is severely lacking in any concrete details.

      I’d also like to know how exactly it is that they plan to deploy massive arrays of solar panels to space. Most earth-based solar farms are huge and take up entire fields, some are a few kilometres across in size. That’s many orders of magnitude more massive than anything we’ve previously ever launched.

      Plus whatever power transmission system they come up with would have to be powerful to be of any use but if it’s that powerful would present an active danger and would effectively constitute a space-based weapon system.

      It’s a cool sci-fi idea but it is all pie in the sky.

      • Cort@lemmy.world
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        22 hours ago

        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

        • phutatorius@lemmy.zip
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          4 hours ago

          Now factor in the launch costs, and make sure to include the probability of launch and deployment failures.

        • Echo Dot@feddit.uk
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          21 hours ago

          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.