• @Sentau@lemmy.one
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    1051 year ago

    I am not sure when the narrative around nuclear power became nuclear energy vs renewables when it should be nuclear and renewables vs fossil fuels.

    We need both nuclear and renewable energy where we try to use and develop renewables as much as possible while using nuclear energy to plug the gaps in the renewable energy supply

    • @Sax_Offender@lemmy.world
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      71 year ago

      This is the product of a couple of cultural movements in previous generations.

      1. People who conflated their Cold War-era opposition to nuclear weapons with opposition to nuclear energy. The Venn diagram with early environmental movements has considerable overlap.

      2. A more general and mostly-irrational fear of nuclear energy mostly stoked in the U.S. by Three Mile Island, which is a case study in good nuclear accident management with piss-poor public relations. (See: the first few seasons of the Simpsons many gags about the dangers of the power plant.)

      3. The current environmental movement’s general unwillingness to acknowledge nuclear energy as a very advantageous tool in the push to eliminate fossil fuels. Why? Over-optimism about where renewables are now and continued influence of the Boomers from #1 who taught all of their university classes.

      4. Over-reaction to Fukushima, particularly in the EU (other than France). And then doubling down until Ukraine forced their hands when Russian gas became an embarrassment.

    • @SpaceCowboy@lemmy.ca
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      -31 year ago

      A decade ago I’d agree with you. But given the amount of time needed to get a nuclear power plant online, if we tried to use nuclear to replace fossil fuels, it’ll probably be too late. Add to that the fact that the cost of wind and solar has dropped significantly and the fact we’d be trading dependency on resources from a group of unstable countries to a dependency on resources from another group of unstable countries, it just seems like nuclear just isn’t a very good option any more.

      Of course there could be a tech change (like fusion) which alters this, but the days of fission are past. Keep the plants that are currently operational going, and if there’s construction near completion, then sure. But I feel like fission has become a bad option for new developments. Takes too long and there’s better solutions available that don’t depend on resources from other countries.

      • @Rakonat@lemmy.world
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        81 year ago

        Fusion is still decades away from being commercially viable, so while continued funding for RnD for it should be important, it still has a long way to go before we can even start making plans for power plants operating on it.

        As for Nuclear having long set up time… that’s not a reason to not use it. That’s a reason to hammer out plans and start finding ideal sites for it to service high density and high demand areas as soon as possible. The other half of this coin is that activists and legislatures need to take a serious look at Nuclear Regulations and cut the things that are simply not needed. Nuclear continues to be a viable option in spite of the severe restrictions placed upon it, restrictions that no other form of energy production could even be viable much less profitable. If we equalized these limitations and restrictions, you can pretty much guarantee that Nuclear would suddenly become #1 choice and still maintain the highest safety rating per watt produced.

        Solar, Wind and Nuclear all complement each other very well, with the downsides of each generation being easily offset by the other two forms of power generation. Wind and Solar take a lot of space to make farms that produce enough power to feed a large city, where as a nuclear plant can produce the same amount of power with considerably less space. And the two can be interwoven together, with most nuclear plants already having ‘no go’ areas or restricted zones around them that could easily be filled in with Solar and Wind.

        Solar will give you a set amount of power each day the shines, varying throughout the year but works as a good baseline. Initiatives could be pushed to add rooftop solar to most homes, businesses and other buildings or infrastructure that people don’t need to walk across or stand upon, increasing the base line here in a relatively cheap and low cost way, though of course these panels do need to be cleaned regularly so just plastering them to the sides of skyscrapers isn’t quite as viable as people like to think it would be.

        Nuclear is a very efficient form of power generation with variable output. While it is true that Nuclear plants need some time to vary their output, this isn’t nearly as big of deal as people make it out to be given the rate of power generation can be changed in a matter of minutes, not hours, and using historical data of power usage year over year and monitoring current conditions, a properly built and managed nuclear plant can easily adjust on a schedule to raise and lower it’s output ahead of rising and falling demands throughout the day. And using modern reactor designs, these advantages become more pronounced with faster reaction times in generation and more thorough use of fuel leaving considerably less waste.

        And Wind power acts as a great back up and buffer for all other forms of power generation, in rural areas wind power can easily provide 100% of the power needs and more to rural and suburban communities, and when combined with other forms of power wind can easily and rapidly bring turbines online or shut them off to follow the demand of the power grid and bridge the gap during any anomalous spikes and valleys in usage. Wind turbines do take a lot of space per gigawatthour produced, but in rural areas with farming or livestock where lots of land isn’t really being used and developed for other reasons, wind turbines make sense, and with good a good power grid that can transmit power over hundreds of miles, can incorporate large areas of empty land into high density area in the same region to meet power needs with minimal pollution and carbon footprint.

        Of course each power generation has it’s problems, Solar only works when the sun shines obviously, requiring large scale power storage which isn’t exactly feasible with the technology we have today. Wind turbines seem great on the surface, but their blades are made of carbon fibre in most instances, and have 7 year life spans at most, with no current programs or policies in place to break down these turbine blades that will not decay naturally, meaning roughly every seven years landfills and dumps get thousands more semi-trailer sized blades dumped into them with no long term plan on how to recycle or reuse them. And Nuclear power has the waste issue, and more importantly a PR issue. With older 60s and 70s designs, these reactors did generate notable amounts of waste, but this is less a problem with more modern reactors that can even run previously ‘depleted’ waste fuel through them to generate power while also reducing the amount of radioactive material left over. And of course the longer setup times, which addressed above is not actually something they should need, given the absurdly high standards placed upon Nuclear by skeptics and detractors decades ago mean many other power plants, factories and even government buildings would immediately be disqualified and turned into exclusion zones due the natural radioactivity of the building materials such as granite which we know to be harmless to humans.

        • @droans@lemmy.world
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          31 year ago

          Nuclear plus renewables is the path we need. Add in power storage technologies to smooth out fluctuations and we’re fully covered.

      • @PersnickityPenguin@lemm.ee
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        1 year ago

        It’s going to take decades to decarbonize, the current Paris accord 2030 goal will not be met at all. Biden has set a target date for the US for 2050 to achieve net zero. That’s 37 years away.

        Currently we’re going in the opposite direction:

        “The Production Gap 2021 report states that world governments still plan to produce 110% more fossil fuels in 2030 (including 240% more coal, 57% more oil and 71% more gas) than the 1.5 degree limit.[118]”

        People are talking about solving climate change as a sprint, but really it’s a marathon. In fact, we don’t even have the technology to fully decarbonize all sectors. It’s going to take an “all hands on deck” approach and yes, will cost trillions of $$$ to achieve.

        I’m pretty doubtful that we will achieve net zero energy and zero carbon before the end of the century. The first 50% of emissions reductions will be the easiest of the low hanging fruit; each successive % reduction will be that much harder and more expensive to achieve.

        Tying back to your comment, each nuke plant permanently displaces millions of tons of CO2 emissions per year.

      • @CeeBee@lemmy.world
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        1 year ago

        the fact we’d be trading dependency on resources from a group of unstable countries to a dependency on resources from another group of unstable countries

        I’m not sure calling Canada (up until 2019 the largest exporter and miner of uranium) an unstable country. Unless you want to talk about our looming housing crash.

        • He is talking about Kazakhstan, which produces ~46% of the supply (compared to Canada’s ~15% of which they export even less). Other top producers includes Namibia and Uzbekistan, not terribly stable countries.

          And on top of that, the Stans have a big neighbour that would be willing to conquer them to secure these resources, to strengthen its geopolitical position.

          Also not sure what your source is for Canada being the largest exporter, as they have exported less than Kazakhstan since at least 2013 (according to what I can find, but please prove me wrong if that isn’t the case). They definitely weren’t the largest miner of it since 2009 I believe.

        • @SpaceCowboy@lemmy.ca
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          01 year ago

          Canada also produces oil. So why does what fuckheads in places like Russia and Saudi Arabia affect oil prices in Canada?

          Seems like in a capitalist world, markets are global and instability anywhere in the world affects the prices of resources that are traded globally. Being dependent on those resources means wars need to be fought to secure those resources to keep the prices stable.

    • @vaseltarp@lemmy.world
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      1 year ago

      Nuclear energy can not be used to “plug gaps”. The power that it produces can not be varied very quickly. The goal should be to only have renewable in the end.

      • lewis6991
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        141 year ago

        Solar panels aren’t truly renewable since they degrade over time and need to be replaced after around 20-30 years. Yes they can be recycled, but so can (and is) nuclear waste.

        Everything has a cost and you can’t escape entropy.

        • @PersnickityPenguin@lemm.ee
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          11 year ago

          This is true; nothing is sustainable at geological time scales. Human technological civilization even less so. Just look at how badly North Africa, the Middle East and China’s environment has been degraded through thousands of years of organic (!) farming. The Middle East used to have enormous cypress forests, and North Africa was full of wetlands where the Qattara Depression now resides.

        • @LoveSausage@lemmygrad.ml
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          11 year ago

          Minimum warranty for good solar panels at 90% is 30 years , they will last 60 (no one knows exactly) albeit not as efficient.

          • lewis6991
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            1 year ago

            I just had some installed. Guaranteed 80% efficiency for 20 years. I heavily doubt they will last 60 years.

            Had energy storage installed as well. Only guaranteed 90% (~4500 cycles) for 10 years.

            EDIT: double checked the data sheet. They are actually 86% for 25 years with a rated 0.5% per year degradation rate.

            • @LoveSausage@lemmygrad.ml
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              1 year ago

              Quite sure mine had 30 years at 90 % . But it was the really good mono ones. Storage is a completely different story. But hey even if they are down to 25% I would keep them and just add new ones.

              0.5 would mean 30 for 60 years also…

        • @SMITHandWESSON@lemmy.world
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          1 year ago

          Let’s not forget about nuclear fusion, which will be way more efficient and have less waste if we can figure it out!!!😉

      • @Sentau@lemmy.one
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        21 year ago

        What I meant by gaps was that nuclear can be used in areas where solar or wind is not feasible yet or in areas where solar or wind cannot fulfill the energy demands.

        Also we have very good control over nuclear power generation. There are a variety of methods using which we can control the reaction rate of the fission process