• Franklin@lemmy.world
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    7 months ago

    Solar and wind will always need batteries for times of low output, until we get more resilient and larger capacity batteries we will need a backbone to support the electricity grid to avoid having to overbuild battery capacity.

    As of right now natural gas is that backbone but that could change and very well be nuclear energy until we figure out something like mass produced solid state batteries.

  • WallEx@feddit.de
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    7 months ago

    Renewables are better, cheaper and more scalable. Its not even close. Look at Denmark for how it can be done.

  • Draedron@lemmy.dbzer0.com
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    7 months ago

    lol nuclear is really uneconommical, way too expensive and therefore really inefficient. You need 10-20 years to build a plant for energy 3 times more expensive than wind. For plants that still require mining. That produce waste we cannot store and still cannot reuse (except for one small test plant). For plants that no insurance company want to insure and energy companies dont like to build without huge government subsidies.

    I know lemmy and reddit have a hard on for nuclear energy because people who dont know anything about it think its cool. But this post is ridiculous even for lemmy standards.

  • Ibuthyr@discuss.tchncs.de
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    7 months ago

    But we don’t really have it now, which is the main problem. In the time it takes to build these things (also for the money it takes), we could plaster everything full with renewables and come up with a decentralized storage solution. Plus, being dependent on Kazachstan for fissile material seems very… stupid?

  • sweetpotato@lemmy.ml
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    7 months ago

    My issue with nuclear energy isn’t that it’s dangerous or that it’s inherently bad. The world needs a stable source of energy that compensates for wind and solar fluctuations anyways. For the current realistic alternatives that’s either going to be nuclear or coal/oil/natural gas. We have nothing else for this purpose, end of discussion.

    My problem is the assumption underlying this discussion about nuclear energy that it somehow will solve all of our problems or that it will somehow allow us to continue doing business as usual. That’s categorically not the case. The climate crisis has multiple fronts that need to be dealt with and the emissions is just one of them. Even if we somehow managed to find the funds and resources to replace all non renewable energy with nuclear, we would still have solved just 10% of the problem, and considering that this cheap new energy will allow us to increase our activities and interventions in the planet, the situation will only worsen.

    Nuclear energy is of course useful, but it’s not the answer. Never has technology been the answer for a social and political issue. We can’t “science and invent” our way out of this, it’s not about the tech, it’s about who decides how it will be used, who will profit from it, who and how much will be affected by it etc. If you want to advocate for a way to deal with the climate crisis you have to propose a complete social and political plan that will obviously include available technologies, so stop focusing on technologies and start focusing on society and who takes the decisions.

    One simple example would be the following: no matter how green your energy is, if the trend in the US is to have increasingly bigger cars and no public transport, then the energy demands will always increase and no matter how many nuclear plants you build, they will only serve as an additional source and not as a replacement. So no matter how many plants you build, the climate will only deteriorate.

    This is literally how the people in charge have decided it will work. Any new developing energy source that is invented serves only to increase the consumption, not to replace previous technologies. That’s the case with solar and wind as well. So all of this discussion you all make about nuclear Vs oil or whatever is literally irrelevant. The problem is social and political, not technological.

  • daniskarma@lemmy.dbzer0.com
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    7 months ago

    In Spain we are starting to get negative prices every weekend for electricity thanks to renewables. France is not even close to those prices with their bet for nuclear.

    Don’t get me wrong, I love nuclear power. And I’m not a big fan ok what thousands of windmills made to our landscapes. But efficiency wise renewable is unbeatable nowadays.

    • Mubelotix@jlai.lu
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      7 months ago

      Energy is expensive in France because we are legally forced by european regulation to sell at those prices. Our energy is the least expensive to produce

    • Semi-Hemi-Lemmygod@lemmy.world
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      7 months ago

      Meanwhile in Georgia (USA) they completed a new nuclear power plant and they have to raise rates because it went 100% over its $14 billion budget.

    • fellowmortal@lemmy.dbzer0.com
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      7 months ago

      Negative energy prices are a bad thing! That means that someone is dumping energy into the grid (you should be paying the grid if you have solar panels!!) In the UK all renewable energy had to be called ‘experimental’ so that the pricing was fixed and the government picks up the tab - that’s not good. Check this map - right now the wind isn’t blowing and solar hasn’t got out of bed - so most of the countries using renewables are looking shit - later today solar will kick in, but tonight it will be bad again. That isn’t a solution.

    • The Menemen!@lemmy.world
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      7 months ago

      They don’t need to be exclusive. Power generation should be diverse. Otherwise prices will go through the roof on times without wind (happens in Germany). This can lead to higher energy prices in combination with high energy exports.

      • ShortN0te@lemmy.ml
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        7 months ago

        Nuclear power does not solve the issue here. Nuclear reactors take hours or even days to ramp up or down. They are not quick enough to react to such occasions.

        • The Menemen!@lemmy.world
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          7 months ago

          True, it wouldn’t be enough, This is why Germany still has a lot of coal-fired power station and natural gas power stations, despite huge investments into renewables, and is also investing a lot into wood-fired power stations (imo a really terrible idea). The nuclear plants could still ease the situation by giving a stable basic load that has some planable variability (wind models are getting also better every year and aren’t that bad as it is). For now renewables cannot really provide a very stable basic load (at least not here, might be different for other areas).

          There are great concepts to improve all of this with stuff like pumped-storage hydroelectricity, but those cannot be build everywhere and take up a lot of space. It is going forward and I think nuclear power will come to an end eventually. For now, I think they still have their place (and imo Germany acted irrationally by shutting them all down).

          I mean, we’ve been lucky that France completly fucked their energy sector up (hints towards that nuclear plants probably also won’t be the ultimate solution), otherwise we’d have lost a loooot of money and would have had energy prices even worse.

          Here an imo interesting read: https://gemenergyanalytics.substack.com/p/capture-price-of-importsexports-in

  • NessD@lemmy.world
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    7 months ago

    No, it’s not the best we have. Solar and wind are way safer, cost less and don’t produce waste.

    Sure, nuclear power is safe until it isn’t. Fukushima and Chernobyl are examples of that. Nuclear plants in Ukraine were at risk during Russian attacks. Even if you have a modern plant, you don’t really think that under capitalism there is an incentive to care properly for them in the long run. Corners will be cut.

    Besides that they produce so much waste that has to be: a) being transported b) stored somewhere

    Looking at the US railroad system and how it is pushed beyond it’s capacity right now and seeing how nuclear waste sites are literally rotting and contaminating everything around them I’d say it’s one of the least safe energies. Especially if you have clean alternatives that don’t produce waste.

  • Avialle@lemmy.world
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    7 months ago

    Nuclear lobby really tries to sell us to the fact, that it’s better to have control over power by a few big players. Must be terrifying to think about people creating their own power eventually.

  • Frokke@lemmings.world
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    7 months ago

    Idealists and reality. Natural opposites.

    Renewables are unreliable. That’s a fact. Yes you have moments, days even weeks where they can deliver what is currently required. In total output. Not yet in delivers when you actually need it output.

    Sure you can have 100% renewable generation for a 24hr period, but if your generation is during the day and your usage is spread into the night, you’re not really covering your needs, no matter how good it looks on paper.

    It is also your current usage. Now do the math and replace all fossil fuel usage with electric alternatives. Cars, buses, trucks, heating, cooking, etc. Now calculate just how much more renewables you need to cover all that in ideal circumstances.

    Now do the same for windless winter days.

    If we’re going to step away from fossil fuels entirely, you’re going to have to accept nuclear as an option. Thinking we’ll manage only with renewables is a dream. While you dream, we’re burning fossil fuels non-stop. Cuz that’s reality.

    You can have renewables with nuclear, or renewables with fossil fuels. You’re actively choosing renewables with fossil fuels.

  • @spicytuna62 It’s not the best we got. The best we got is to stop the wasteful overproduction and stop letting society being about building building building.

    We should rather reframe society into being about growing and localizing the economy. Focusing on living with nature, not at it’s expense.

    • qjkxbmwvz@startrek.website
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      7 months ago

      France made a big mistake to go all in.

      Not only does Germany import electricity from France (which comes from…?), but Germany has (according to this) a substantially higher carbon footprint per capita.

      If the only issue is cost and projects taking longer than expected, isn’t that a good tradeoff for carbon neutral power?

      And yes, of course, I would prefer renewables, you would prefer renewables, we all would. But it’s somewhat disingenuous to decry the use of nuclear, advocate for renewables, and at the same time, rely heavily on coal, as Germany does (or at the very least, did recently.

      • byzerium@feddit.de
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        7 months ago

        Germany Imports 0,5% of the Electricity from France. It’s not that we are depending on it. The day ahead prices for electricity are lower in Germany than they are in France. The Coal Plant are not running on full capacity, cause it is cheaper to import electricity through the European electricity Grid. Level of burning coal is the same level that it was in the 60’s. The most imported electricity is Norway water power and Danish wind Power.

        The cheap news that we depend on France are just wrong. No idea why everybody is riding this dead horse. Even in the summer 2022 when gas prices where high caused by the Ukraine war and the summer was hot, we had to help our France with energy, cause their nuclear power plants couldn’t get enough cooling water from the rivers, cause the water lvl in it was to low and the most power plant needed maintenance.

        And the CO2 thing. The emissions are infinite high, cause there is not a solutions for it. Not even close! I just don’t buy the shit, that the EU declared nuclear as co2 free. That’s bullshit.

        I like to discuss and get new ideas. But the whole nuclear thing is just stupid and so many people are ignoring the facts about that.

    • AngryCommieKender@lemmy.world
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      7 months ago

      China will be offering nuclear waste disposal services once they complete the molten salt reactors that we designed in the '60s. Nuclear waste will be a non-issue, unlike the cyanide waste created in coal and natural gas plants.