• GooseFinger@lemmy.world
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    1 year ago

    Why? Nuclear power is the most complex and expensive option of any clean energy source from what I know.

    • Eximius@lemmy.world
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      1 year ago

      And yet, after many decades of solar, wind construction. It is the energy source in that pie chart that is sizeable (just as much as all wind and solar) and extremely stable (probably for the last 50 years), without any major construction in the past 30 years minimum.

      • frezik@midwest.social
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        1 year ago

        Wind/solar only ramped up in the last 10 years, not decades. That’s when they got cheap. Really cheap. It’s nuclear that had a huge head start.

    • KillingTimeItself@lemmy.dbzer0.com
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      1 year ago

      modern gen 4 plants are MUCH simpler, foregoing PWR loop entirely in favor of liquid metal/salt type reactors, with various different design choices that are all much simpler, and cheaper to build/maintain.

      If we see actual development in that field it’s not hard to imagine them playing with the fossil fuels, possibly renewables as well given the base load productivity, and relative lack of waste.

      • partial_accumen@lemmy.world
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        1 year ago

        Nearly all of nuclear in the USA was built decades ago. Instead of being “paid off” and being cheaper, its still more expensive to generate electricity with nuclear than nearly all other electricity sources in the USA.

        • CrimeDad@lemmy.crimedad.work
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          1 year ago

          I’m not sure what you are referencing, but there are good reasons why nuclear power is expensive: lots of engineering and construction hours, strick safety and quality standards for design and materials, and no externalities, since decommissioning and waste handling have to be accounted and baked into the final utility cost to consumers. In other words, even if it’s difficult to pay off a nuclear power plant (in a liberalized energy market of course) it’s still money well spent. The same requirements and expectations should have to apply to other industries as well.

          • partial_accumen@lemmy.world
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            1 year ago

            Are you arguing its a “good thing” for existing built plants or for propose plants yet to be built? I wasn’t sure, but the result is the same for both. Nuclear is too expensive for what it provides in the face of better alternatives. I’m happy to back my statements with sources. Which position were you arguing?

            • assassin_aragorn@lemmy.world
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              1 year ago

              There is one thing that new nuclear reactor designs can provide that there is no good alternative for, and that’s consuming existing nuclear fuel. We can use breeder tractors to convert our existing waste into usable fuel for newer reactor types (I want to say Thorium but I’m not positive).

              Our best outlook for the future is for us to build at least as much of these are necessary to clean up our nuclear waste.

              • partial_accumen@lemmy.world
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                1 year ago

                There is one thing that new nuclear reactor designs can provide that there is no good alternative for, and that’s consuming existing nuclear fuel. We can use breeder tractors to convert our existing waste into usable fuel for newer reactor types (I want to say Thorium but I’m not positive).

                Building reactors just to reprocess fuel would be a really bad way to solve that problem. If we are requiring reprocessing, there are other countries that run these that we could just ship our fuel to.

                Breeder reactors bring some serious security problems

                One of the really great things about civilian nuclear power in the USA is that the fuel or waste can never be built into a nuclear bomb. Our reactors run on Uranium-238. This is the most common isotope of uranium and its plenty fissile to reach criticality for power generation. Nuclear bombs use Uranium-235 or Plutonium-239.

                The way a Breeder reactor can reprocess fuel is by turning “spent” Uranium-238 into, you guessed it, Plutonium-239. Plutonium-239 can be used to generate electricity in reactors too. So now you’ve got civilian power plants that are housing and handling weapons grade nuclear material. The security of the facility, supply chain, workers and everything suddenly has to go through the roof. All of those things increase the total costs to the resulting electricity. With nuclear already being more expensive than other cleaner and dirtier alternatives, running Breeder reactors makes that nuclear power yet more expensive again!

                • assassin_aragorn@lemmy.world
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                  1 year ago

                  Those are certainly difficulties that we’ll need to address. The plutonium especially. I think we could design ways however to keep it secure. It would certainly need to be carefully designed though.

                  • partial_accumen@lemmy.world
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                    1 year ago

                    We certainly could. We do it already today in the USA with our nuclear weapons (which use Plutonium). Its all possible, its just expensive. So much so that it makes an expensive power source (nuclear) even more expensive. Why would we do this when solar costs 5 times less than regular civilian nuclear power?

            • CrimeDad@lemmy.crimedad.work
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              1 year ago

              My position is simply that it’s a good sign if nuclear power is more expensive than other types. We should be suspicious of anything that claims to offer a better deal.

              • partial_accumen@lemmy.world
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                1 year ago

                What an unusual stance. You eluded to the externalities of other sources as your concern. For coal I would agree. However, for wind and solar the studies have shown those to be substantially cheaper even with externalities factored in.

                What do you base your reasoning on that wind and solar are not factoring in externalities?

                • CrimeDad@lemmy.crimedad.work
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                  1 year ago

                  My understanding is that wind and PV solar power are similar to most other industries besides nuclear power in that the management of the lifecycles of such deployments isn’t well planned or funded. I myself have encountered a derelict wind farm and I have to wonder if that’s just the way it’s supposed to go after investors extract their short-term profits. As these renewable projects decline in performance (both in terms of actual electricity production and fictional financial viability), I guess the horizon will just keep collecting their skeletons.

                  • partial_accumen@lemmy.world
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                    1 year ago

                    This doesn’t seem like a strong argument against wind that a wind farm planned for a 20 year life ran for 20 years, and was then dismantled.

                    I don’t want to put words in your mouth, but I can only make some assumptions about where the gravity is for your point.

                    • Are you arguing that a wind farm, once existing, should continue in perpetuity or not be built at all?
                    • Are you arguing that an abandoned wind farm isn’t pleasant to look at?

                    I’m interested in your viewpoint.

        • ironeagl@sh.itjust.works
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          1 year ago

          Nuclear is the most regulated one. Start requiring full recycling / disposal of solar or wind and how expensive do they get?

          • partial_accumen@lemmy.world
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            1 year ago

            Nuclear is the most regulated: True. Accidents in nuclear have the most consequence, by far, of any generation source.

            I would imagine that if we’re just going for disposal, solar and wind are still pretty cheap. With zero recycling wind turbine blades can just be buried after their 25 year life cycle. source.

            Same landfill disposal option is available for solar panels at $1 to $5 per panel. source

            This would be the level of disposal nuclear has, except low and high level nuclear waste is much more costly and potentially destructive even after disposal.

        • JamesFire@lemmy.world
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          1 year ago

          It’s not significantly more expensive though. https://en.wikipedia.org/wiki/Cost_of_electricity_by_source

          And even if it was, it has other benefits.

          Like using significantly less land, and being safer.

          It can also work as a source of heat for district heating or various industrial processes, and since the plants themselves have no emissions, they can be reasonably placed in cities for this purpose without harming people. Using heat directly is more efficient than converting it to and from electricity.

          Nuclear has it’s place.

          • partial_accumen@lemmy.world
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            1 year ago

            It’s not significantly more expensive though. https://en.wikipedia.org/wiki/Cost_of_electricity_by_source

            I’m looking at that source it shows:

            • nuclear $6,695-7,547 /kw
            • solar pv $1,327 /kw

            At the most generous calculation (of nuclear costly only $6,695) that puts nuclear power at 5 x more expensive that solar PV. So if you have a theoretical pure electricity bill on solar PV of $100/month, your theoretical pure electricity bill on nuclear of $500/month.

            I’m not sure how you reach the conclusion that nuclear is not significantly more expensive.

            • wikibot@lemmy.worldB
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              1 year ago

              Here’s the summary for the wikipedia article you mentioned in your comment:

              Different methods of electricity generation can incur a variety of different costs, which can be divided into three general categories: 1) wholesale costs, or all costs paid by utilities associated with acquiring and distributing electricity to consumers, 2) retail costs paid by consumers, and 3) external costs, or externalities, imposed on society. Wholesale costs include initial capital, operations & maintenance (O&M), transmission, and costs of decommissioning. Depending on the local regulatory environment, some or all wholesale costs may be passed through to consumers. These are costs per unit of energy, typically represented as dollars/megawatt hour (wholesale). The calculations also assist governments in making decisions regarding energy policy. On average the levelized cost of electricity from utility scale solar power and onshore wind power is less than from coal and gas-fired power stations,: TS-25  but this varies a lot depending on location.: 665

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