• 8 Posts
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Joined 3 months ago
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Cake day: June 22nd, 2024

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  • If you’re generating electricity primarily from fossil fuels in the first place, their price will be linked (but higher) by design. If you’re using a merit order system, then that’s true even if just a fraction of your electricity comes from said fossil fuels. That of course ignores possibly different sets of taxes being applied to retail fuels vs. the fuels utilities are buying and taxes on electric power.



  • Afaik, German reactors were designed to be throttled to 60% capacity, within around a week. And doing that too often wasn’t safe either. And there was no economic incentive to do so because a reactor throttled is not a reactor earning—although you have to do a bunch of extra work to throttle the reactor and you’re only conserving negligible amounts of fuel.

    I am not deep enough in the topic to know whether that’s a limitation due to all the German reactors being particularly outdated. But “30 min” and “20%” sounds more like an emergency protocol to me rather than any kind of srandard procedure.








  • And yet, China is still building out solar, wind, and coal faster.

    Graphs TWh/y by type in China

    That’s despite nuclear having a lot of advantages in China:

    • high level of centralization (even SMRs produce 0.5TW)
    • high level of governmental involvement in economy (which means huge investments can be a lot easier)
    • low level of governmental transparency (which means you don’t have to deal with NGOs or Nimbys)
    • rapidly increasing demand for electricity (which creates an incentive to build as much supply as possible)
    • first-class universities (for independent R&D)
    • large land mass (which is useful both for mining and disposal)
    • lax environmental policy (same)


  • You make it sound like the completely predictable power output of nuclear is a problem

    That is a challenge, because it means you need a flat consumption curve as well – which in reality you don’t see often. I.e. you either need to waste or cheaply export energy, especially at night and over the weekend to make sure your grid doesn’t crash.

    and unpredictable variation in output of the wind/solar is great.

    The point is that augmenting solar/wind with (plain) nuclear doesn’t work well.

    But the variability of solar/wind are a challenge as well, especially given the at times negative energy prices. Fossil, biomass, battery, pumped hydro, and H2-based power production have a huge advantage there.



  • No, because specific power levels need to be available at specific moments. The flat production curve of nuclear does not pair well with varying production from solar/wind. Gas sucks for climate-change reasons but at least you can regulate it up/down in a matter of half hours to react to variability of your other production. While we still had nuclear, wind parks needed to shut down more often.

    In the longer run, batteries will shift solar peaks over the day and H2 will likely be used to replace methane.




  • Please consider creating a public news source blacklist for this community.

    I privately considered that when we discussed the new rules among the mods but didn’t really fancy working on it. Links to RT will be deleted too though, so much is sure. :)

    Also: you are not personally responsible for Holocaust,

    I am not doing this out of a feeling of guilt.

    no need to please Israel,

    If Al Jazeera was simply critical of Israel I wouldn’t mind. I wouldn’t have written the message above about 2000~2010 era Al Jazeera either.

    The issue for me is that some of their channels have started part-time dealing in complete fakery when it suits their benefactors (cf. the linked Twitter screenshot).

    (On the topic of Israel though: This server, feddit•org, is supposed to comply with German law which restricts certain speech. This means e.g. speech in favor of Israel ceasing to exist is not allowed.)

    just don’t vote for AfD.

    That won’t happen. :)

    Lots of love from Poland.

    Cheers!