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[-] PetteriSkaffari@lemmy.world 1 points 1 year ago

The arguments of Greenpeace against nuclear power have nothing to do with age though. It's too expensive, which takes money away from e.g. wind and solar, with less carbon-free energy in the end for the money spent and more fossil fuels being used as a consequence. And still produces nuclear waste. Just develop batteries, hydrogen and the likes for storage. And ban or tax the use of fossil fuels. This debate is not over yet, not by a long shot, and climate will remain in the news as long as we live, I'm afraid.

[-] Waryle@jlai.lu 26 points 1 year ago

It's too expensive

Nuclear power isn't expensive. It's launching a cutting-edge industry with a lot of inertia and not giving it the time and means to pay for itself that's expensive.

And don't even get me started on the Levelized Cost of Energy. These studies give a big advantage to renewable energies, since they only take into account the cost of building, maintaining and dismantling a given energy plant.

That's roughly 100% of the cost of a nuclear power plant, whereas most of the cost of solar and wind power will be found in the solutions that need to be put in place to compensate for their lack of controllability, such as redundant power plants, dams and other forms of storage of considerable size, which are therefore never counted in these cost estimates.

At present, we don't even have the technical means to have enough storage to afford 100% wind + solar in a country, so we're completely unable to estimate how much it would actually cost.

with less carbon-free energy in the end for the money spent and more fossil fuels being used as a consequence

The reality is exactly the opposite: France has been producing most of its electricity with nuclear power since the 70s and 80s, and has had its electricity almost entirely decarbonized since the 90s, for a total cost of less than 150 billion euros for the nuclear industry between 1960 and 2010, according to a report by the Cour des Comptes.

Germany, on the other hand, which has been anti-nuclear and pro-renewables for 20 years, with 40% RE, produces 9 times more carbon with its electricity mix.

And still produces nuclear waste.

The entirety of high level radioactivity waste produced by France for 60 years (containing 90%+ of the radioactivity).

  • New reactor designs, whose research projects have been opposed and working prototypes shut down by anti-nuclear campaigners, can reprocess and reuse this nuclear waste.

Just develop batteries, hydrogen and the likes for storage

You can see the contradiction here: how can we claim that renewable energies are cheaper when we have yet to develop solutions to make them work on a national scale?

We're still a long way from having the technology for batteries that can power entire countries for hours or days on end, and hydrogen means we'll have to oversize our power plants several times over to make up for its inefficiency.

Thanks to French nuclear power, we have proof that it is possible to produce safe, inexpensive nuclear power that can be deployed in two decades. Almost all of France's current nuclear fleet was built between 1970 and 1990, providing 70%-80% of French electricity production for almost 40 years, at a rate of 2 reactors completed per year at a cost of 1 billion per 1000MW unit.

We're still waiting for a working example of a country that runs on wind and solar power without huge hydroelectric capacity or nuclear power for backup.

[-] GiveOver@feddit.uk 3 points 1 year ago

Why the fuck would they put all their nuclear waste in a cube and leave it by the sea in Marseille. Those french morons.

[-] Waryle@jlai.lu 5 points 1 year ago

A bad mouth could argue that it wouldn't make Marseille dirtier

[-] PetteriSkaffari@lemmy.world 1 points 1 year ago

Well, your view is not unbiased, perhaps it's difficult to do here, given the limited amount of writing room. And in a discussion it seems to be obligatory to only mention the parts that are favourable to one's personal outcome, somehow. But still. Even though you seem very convinced on the pros of nuclear, others still beg to differ. Like this research shows. Money remains an important driver of the whole issue, and money being spent on nuclear cannot be spent again on wind turbines or batteries. Unbiased information is difficult to get online however, most websites on the matter have preconceived ideas that they present. Nuclear waste also concerns medium and low level waste, which are a lesser problem, but still a problem in larger quantities. And high nuclear waste remain radioactive longer than homo sapiens has been around, so although the quantity is not a lot, its longevity makes up for it, so it remains quite a problem for which no final solution has been found. As I wrote earlier: the debate is not over just yet, otherwise it would not be newsworthy every time again. Strong opinions on both sides do not make up for it, usually a strong opinion is not backed up by knowledge and facts alone, but also on feelings and emotions, otherwise it would not be a strong opinion. Which makes the discussion more difficult.

[-] Rivalarrival@lemmy.today -1 points 1 year ago

At present, we don't even have the technical means to have enough storage to afford 100% wind + solar in a country,

I reject your premise.

I agree that we do not have the storage capacity to maintain the supply-shaping model we currently use.

However, we do have all the technological tools necessary to shift to demand-shaping as our primary model for matching supply and demand. Basically, we can move the times that we use most of our power to the times that power is easy to generate.

[-] Waryle@jlai.lu 4 points 1 year ago

Basically, we can move the times that we use most of our power to the times that power is easy to generate.

How?

For example, the typical risk period for a power grid is during winter nights, when people come home and turn on the heat, cook and do their chores, or relax watching their TVs or playing videogames. How can we postpone such a power usage to another time?

[-] Rivalarrival@lemmy.today 1 points 1 year ago* (last edited 1 year ago)

How can we postpone such a power usage to another time?

We don't.

The most efficient traditional generation comes when we can perfectly flatten out demand curve. When there is no variance, we can meet 100% of our demand with cheap, efficient, baseload generation. When we have some variance, we meet our minimum demand with baseload generators, and everything above that minimum is met with expensive peaker plants.

So, what we have done is provided extremely cheap power to heavy industry (steel production, aluminum smelting, etc) over night, when regular demand is low. This raises our minimum load, and lowers our maximum, but it increases night-time consumption. To meet that with solar requires storing power when it is produced, and releasing it overnight.

But the only reason why we need it overnight is because we drove them to those overnight hours. When we have them run during the day, we don't need to store that power first.

We don't have to shift all of our consumption to daytime hours. We have plenty of excess nuclear generation capacity available for residential needs after we shed those heavy, industrial loads.

this post was submitted on 30 Aug 2023
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