Comment on Anon questions our energy sector

• Teppichbrand@feddit.org ⁨5⁩ ⁨hours⁩ ago

  Another problem arises when your generation 63.688 after today and still have to keep maintaining deadly waste from nations that don’t exist anymore, because they produced “cheap” and “clean” every for a couple of decades.
  Come on, Jesus died like 2000 years ago, this stuff will haunt us for centuries. Arguing in favor of nuclear energy is just selfish and shortsighted.

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• Natanox@discuss.tchncs.de ⁨5⁩ ⁨hours⁩ ago

  Your estimation goes way off because you still believe lithium ion to be the only viable solution. By now Sodium-Ion batteries are already installed even in EVs and can be produced without any critical resource like lithium.

  And then of course there are all the other storage solution. Like I said, there even are storage solutions like concrete balls. Successfully tested in 2016, here an article from 2013.

  By now it wouldn’t be wise to stifle this enormous emerging market of various technologies by using expensive, problematic technology (not just because the biggest producer of fuel rods is Russia).

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  • iii@mander.xyz ⁨3⁩ ⁨hours⁩ ago

    I don’t think lithium ion is the only storage technology. I was using it for scale.

    The most cost effective storage is pumped storage. But even that wouldn’t reach the scale necessary.

    6 MWh pumped storage proof-of-concept won’t l, either.

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• barsoap@lemm.ee ⁨5⁩ ⁨hours⁩ ago

  The watthours is what gas is for. Germany’s pipeline network alone, that’s not including actual gas storage sites, can store three months of total energy usage.

  …or at least that’s the original plan, devised some 20 years ago, Fraunhofer worked it all out back then. It might be the case that banks of sodium batteries or whatnot are cheaper, but yeah lithium is probably not going to be it. Lithium’s strength is energy density, both per volume and by weight, and neither is of concern for grid storage.

  Imagine bridging even a short dunkelflaute of 2 days.

  That’s physically impossible for a place the size of Germany, much less Europe.

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  • iii@mander.xyz ⁨3⁩ ⁨hours⁩ ago

    is what gas is for

    Wouldn’t it be better to go fossil free. Given, you know, climate change?

    That’s physically impossible for a place the size of Germany, much less Europe.

    Unless we use a different technology, that is not renewables + storage?

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    • barsoap@lemm.ee ⁨3⁩ ⁨hours⁩ ago

      Wouldn’t it be better to go fossil free. Given, you know, climate change.

      Gas can be synthesised and we’re going to have to do that anyway for chemical feedstock. Maintaining backup gas plant capacity is cheaper than you think, they don’t need much maintenance if they’re not actually running.

      That’s physically impossible for a place the size of Germany, much less Europe.

      Unless we use a different technology, that is not renewables + storage?

      It’s not technology it’s physics. It is impossible for there to be no wind anywhere, at least as long as the sun doesn’t explode and the earth continues to rotate and an atmosphere exists. If any of those ever fail electricity production will be the least of our worries.

      Technology comes into play when it comes to shovelling electricity from one end of the continent to the other and yes we need more interconnects and beefier interconnects but it’s not like we don’t know how to do that, or don’t already have a Europe-wide electricity grid. The issues are somewhere in between NIMBYism regarding pylons and “but we don’t want to pay for burying the cable earthworks are expensive”.

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      • iii@mander.xyz ⁨2⁩ ⁨hours⁩ ago

        Gas can be synthesised

        When’s that going to happen? Right after the green hydrogen revolution?

        They’ve been saying that for decades. It isn’t happening.

        It’s not technology it’s physics

        Sorry, I didn’t think someone would deny the existance of dunkelflautes. It’s currently happening in Germany. (1).

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