• Thorry84@feddit.nl
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    1 year ago

    Just to stir up some shit: France is green because they have a lot of nuclear power. Which means a lot of energy for basically zero CO2. Germany could have been green, but opted to shutdown their nuclear facilities in what can only be described as a “hurt themselves in confusion” move.

    • UnderpantsWeevil@lemmy.world
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      1 year ago

      Which means a lot of energy for basically zero CO2.

      The problem with nuclear power is there’s just too fucking much of it. You’ve practically got to give that shit away for free. You’re never in a position to squeeze retail electricity consumers for $3000/MwH.

      The real meal ticket is down here in Texas, where a handful of gas-powered electric generator companies can form a cartel that fixes prices every time AC demand peaks during the summer. Then you can cash the fuck out by burning $.15 worth of butane for $50.

      Germany could have been green, but opted to shutdown their nuclear facilities in what can only be described as a “hurt themselves in confusion” move.

      Germany decided to rely on the cheap and abundant natural gas from checks notes, ah shit.

    • CyberEgg@discuss.tchncs.de
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      1 year ago

      That’s wrong, nuclear doesn’t equal zero CO2, not even close. There are no emissions from producing electric power, but tons of emissions building the plants and reactors, mining the fissile materials (which in large come from Russia, btw), transporting the materials, etc.
      Granted, if you’re calculating that into renewables, there are emissions, too, but far less per kWh.
      Also, nuclear’s fucking expensive.
      And the “hurt themselves in confusion”-move wasn’t to shut down the NPPs (it was originally planned to phase out of coal and nuclear while building up renewables and using gas during the transition), it was to stall the phaseout of coal, expand on gas relying on Russia while halting the expansion of renewables and utterly destroying the PV industry. That’s what a conservative government does to you. Thanks, Merkel.

      Edit: fck autocorrect

      • Thorry84@feddit.nl
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        1 year ago

        You are right, but in this specific chart, they don’t include things like building the facilities, mining the materials etc. They just use the CO2 released whilst producing power, which with nuclear is very low. You can click on the chart and zoom in on the data, it’s pretty cool. (This is wrong, see edit)

        The whole Germany situation is very complex and I was just jabbing, I live very close to Germany and work in Germany part of the time so I know something about it (but probably not everything). To me phasing out the nuclear wasn’t that much of an issue, but it could have been done way slower to make sure renewables filled the gap. Buying gas from Russia with the war in Ukraine is going on permanently hurt my soul.

        Quickly phasing out nuclear is also a big middle finger to the countries in Europe that are looking to expand their nuclear power, but run up against long lead times. They would have gladly bought nuclear energy from Germany, which would mean way shorter lead times and prevent a lot of extra CO2 during construction of new facilities. Whilst building new big nuclear probably isn’t useful in combatting climate change, getting the most out of existing nuclear would have been.

        The fuel coming from Russia isn’t as big of a deal to me, as there are plenty of sources around the world to buy from. With the amount of gas we’ve bought from the US recently, we could have easily bought some nuclear fuel as well. Now all these sources have their issues, I don’t like being beholden to the US and places like Niger or Namibia can have human rights issues.

        Obviously nuclear isn’t the future and needs to be phased out, but in my mind this meant decades yet and not the rushed phasing out Germany did.

        Edit: Just checked the source, they actually do include things like mining of the fuel, construction of the facilities, transport of the fuel etc. into the CO2 calculation. Nuclear just blows everything out of the water in terms of CO2. Only renewables come close, but in terms of CO2 nuclear is the best.

      • positiveWHAT@lemmy.world
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        1 year ago

        I think you mean mining fissile materials. Nuclear is not in the same category of emissions as fossil fuels that burn carbon directly…

      • UnderpantsWeevil@lemmy.world
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        1 year ago

        There are no emissions from producing electric power, but tons of emissions building the plants and reactors, mining the fissile materials (which in large come from Russia, btw), transporting the materials, etc.

        That’s technically true, but more a consequence of fossil fuel infrastructure peripheral to the power plant itself. Switch your rail network to full electric and use more electricity in your steel manufacturing (already the predominant modern foundry production technique), you’ll solve a big chunk of this problem.

        After that you’re talking about CO2 produced by setting concrete to build the plant, and that’s functionally a push relative to any other power plant that also uses concrete (basically all of them, concrete is popular for a reason). You’re also moving well below the carbon emissions targets we need to hit by 2050, so its an efficient move.

        it was to stall the phaseout of coal, expand on gas relying on Russia while halting the expansion of renewables and utterly destroying the PV industry

        German domestic firms were making huge margins on Russian gas imports right up until the Ukraine War broke out. That’s a big problem with fossil fuels. They’re still incredibly cheap to mine, with a lot of the cost coming via markups in the retail sector. There’s also a huge incentive to simply import PVs from countries with dirt cheap labor costs. So… mostly China with a bit of Canada thrown in there. Germans, like the Americans before them, no longer want to invest in industrial capital because it has a shit ROI. They want to invest in the FIRE and Tech Sectors, because they’ve got crazy high returns.

        So more and more industrial capital keeps getting dismantled, with imports filling the gap. And nobody really seems to care about what this does to domestic security or capacity in the event of supply chain disruptions, because that’s Future Peoples problem and we’re making so much money right now.

    • Hugohase@startrek.website
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      1 year ago

      This map underrepresents emissions from NPPs. The emissions that are assumed for nuclear are lower than everything you find in literature and are 1/5th to 1/10th of what reputable sources state. That being said, this map is otherwise a great resource and i like it very much.

      • Thorry84@feddit.nl
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        1 year ago

        Really? Because they use the figure given by UNECE, that’s a pretty good source I feel? The report it comes from is also very thorough.

        What sources have you seen that state a number 10 times higher? Would be interesting to see where the difference is and what numbers they give for other sources.

        • Hugohase@startrek.website
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          1 year ago

          It will take some time but I will answer with sources. Can you post the source used in the map i have never been able to find anything that came close.

          • Thorry84@feddit.nl
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            1 year ago

            Sure! This is the report: https://unece.org/sites/default/files/2022-04/LCA_3_FINAL March 2022.pdf

            It has a description of the methods and the ISO standards they use to determine life-cycle CO2, from the cradle to the grave numbers. It also includes all the references and sources. I’m sure there’s a lot more info available about the research they did, but this is the high-level report.

            The UN seems like a pretty reliable source and the report seems very thorough, but I’m not qualified to say where they went wrong. So I would love to see what other sources say on the subject.

            Edit: They even state in their report why the value they give for nuclear is on the low end of most accepted literature:

            This value is comparable to the lower range of literature values because of the following assumptions: revised energy inputs for mining and milling, including electricity inputs for ISL, centrifugation-only enrichment, longer lifetime assumed for nuclear power plant (60 years instead of 40).

            But even if you double the amount, it’s still the best or at least one of the best.

      • superkret@feddit.org
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        1 year ago

        Germany didn’t shut down nuclear and replace it with coal, no matter how often you read it online.
        They shut down nuclear and reduced coal at the same time, while doubling overall output.

        • uis@lemm.ee
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          1 year ago

          Germany didn’t shut down nuclear and replace it with coal, no matter how often you read it online.
          They shut down nuclear and reduced coal at the same time, while doubling overall output.

          Ok, they shut down NPPs instead of coal. Now happy? Oh, and increased fossil gas.