• DahGangalang@infosec.pub
    link
    fedilink
    arrow-up
    15
    ·
    edit-2
    2 days ago

    renewable sources produced 33.8 percent of the world’s electricity last year, compared to 33 percent for coal.

    I mean, I’m all in for renewable energy and this does seem like an alright milestone, but that’s comparing one source (Coal) to at least two sources (Solar and Wind*).

    If we’re going to do that then I’d be more comfy when renewables cross the mark and beat out ALL fossil fuels generation and/or when one of Wind or Solar beats Coal.

    Also a little bothered that they don’t enumerate the remaining ~33% of power generation. It seems fair to assume its mostly other fossil fuels with a small but not quite negligible chunk for Nuclear?

    * = I assumed they would lump Hydro + Geothermal into “renewable”, but they only explicitly mention wind and solar

        • logi@piefed.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 day ago

          That’s all just nuclear fission with more steps.

          Are there perhaps only two primary power sources: fission (in stars for now) and fusion (on Earth)?

          • Egonallanon@feddit.uk
            link
            fedilink
            arrow-up
            4
            ·
            1 day ago

            Other way around. Stars produce energy through nuclear fusion, nuclear reactors produce energy through fission.

            • Malgas@beehaw.org
              link
              fedilink
              English
              arrow-up
              2
              ·
              19 hours ago

              And if we want to be really precise about where energy comes from, it’s worth noting that all elements heavier than hydrogen (i.e. all if them) are the result of stellar fusion. Up to iron in the main phase, and anything heavier in supernovae, neutron star mergers, and possibly other extremely violent events. So fission is extracting the stored energy of dead stars.

              Ultimately, it’s probably all just residual energy from the Big Bang.

              • Tiresia@slrpnk.net
                link
                fedilink
                arrow-up
                1
                ·
                14 hours ago

                The energy stored in fissile elements mostly doesn’t come from fusion, it comes from gravitational potential energy released when stellar cores collapse. Most supernovae mostly aren’t fusion; almost all that energy comes from mass falling down into a neutron star or black hole.

                Fissile elements are still produced through fusion, but this process takes energy from the supernova and stores it, just like fossil fuel is stored sunlight.

            • logi@piefed.world
              link
              fedilink
              English
              arrow-up
              2
              ·
              15 hours ago

              Tidal is really feeding off the momentum of the planet, but yeah, that’s not nuclear.

              Potential energy… that’s more a storage medium.

              Perhaps we need to add the original energy of the big bang to nuclear. That threw things apart so they could have potential energy, and it gave a lot of matter a lot of momentum which gets topped up occasionally by a nuclear exploding star.

    • morto@piefed.social
      link
      fedilink
      English
      arrow-up
      6
      ·
      2 days ago

      They also don’t show the actual numbers, so we don’t know if coal production had any reduction, or if renewables just grew faster. The rest of the article makes it seem like the latter

  • supersquirrel@sopuli.xyz
    link
    fedilink
    arrow-up
    3
    ·
    edit-2
    2 days ago

    In a more just reality this would be being celebrated right now in a massive wrestling showdown show called COAL SMACKDOWN that brought together activists, scientists and of course pro wrestlers.