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    China plant den Bau eines „Drei-Schluchten-Staudamms im Weltraum“, um Solarenergie zu nutzen


    China plant den Bau eines „Drei-Schluchten-Staudamms im Weltraum“, um Solarenergie zu nutzen

    https://archive.ph/sIoZN

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    7 Comments

    1. tommos on

      >Space-based solar power stations collect energy from the sun in Earth’s orbit and transmit it to the ground, providing continuous power. This is referred to internationally as the “Manhattan Project” of the energy sector.

      >Space-based solar stations can collect energy without being affected by seasons or day-night cycles. Also, the energy density is much higher in space – about 10 times the average on the Earth’s surface.

    2. hotstepper77777 on

      This sounds suspiciously like China is either going to literally start stealing the sunlight from the world or this will result in a Cowboy Bebop level industrial disaster that’ll make terraforming Mars seem viable because somehow they’re going to blow up the moon.

    3. GnarlyNarwhalNoms on

      China doesn’t have any reusable launch vehicles yet, does it? Because launch costs are the sticking point.

      I have no doubt that China has the resources to fund and build huge orbital solar power stations, and conceptually it’s not a complicated thing (huge solar array, microwave transmitter) but the cost to *launch* at that scale is redonkulous. Assuming Starship becomes fully operational, that *might* make it practical in terms of tonnage-to-orbit cost vs returns, but anything less won’t cut it.

      That being said, China’s government is all about prestige and proving themselves in space, so it’s possible to picture them going ahead and building the thing at a loss just to show they can. But it’ll be very expensive solar power.

    4. blackchoas on

      Makes sense but what exactly is the plan for getting the energy back to an electricity grid on Earth?

    5. America_the_Horrific on

      The tech to transmit enough energy wirelessly even viable yet? Its one thing for a phone physically touching a pad, its a whole different story transmitting that much that far to where its actually viable.

    6. Frustrateduser02 on

      I suppose it would sound paranoid to think it’s an economic chess move for the west. I can’t imagine the economic costs to governments researching and building it.

    7. Pantim on

      Space based solar is such a stupid idea. The math on the efficiency of this of this system points to this. The lost energy with the microwave beam is absolutely staggering. The cost of the solar panel station is even worse.

      Then of course we don’t actually have the technology to do EITHER thing. The furthest top of the line researchers have been able to send any electricity is like 5 feet and it was like a 2v battery worth. Sure the math of space to earth energy transmission is done but that doesn’t mean we can do it.
      —nor does it mean we should either.

      And I’d bet the size of the solar station would be big and light enough that the solar “winds” would effect it and therefor it probably either “blow” away or crash back to Earth.

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