Who cares? We use economics to sort out the relative value of radically different power sources, not cherry-picked criteria. Fission boosters can say that nuclear has a small footprint. Solar boosters can say that solar has no moving parts and is thus more mechanically reliable. Fission boosters can say fission gets more power from the same mass. Solar boosters can point to the mass of the entire fission plant, including the giant concrete dome that needs to be strong enough to survive a jumbo jet flying into it.

In the end, none of this shit matters. We have a way of sorting out these complex multi-variable problems. Both fission and solar have their own relatives strengths and weaknesses that their proponents can cherry pick. But ultimately, all that matters in choosing what to deploy is cost.

And today, in the real world, in the year 2024, if you want to get low-carbon power on the grid, the most cost-effective way, by far, is solar. And you can add batteries as needed for intermittency, and you’re still way ahead of nuclear cost-wise. And as our use of solar continues to climb, we can deploy seasonal storage, which we have many, many options to deploy.

The ultimate problem fission has is that it just can’t survive in a capitalist economy. It can survive in planned economies like the Soviet Union or modern China, or it can run as a state-backed enterprise like modern Russia. But it simply isn’t cost effective enough for fission companies to be able to survive on their own in a capitalist economy.

And frankly, if we’re going to have the government subsidize things, I would much rather the money be spent on healthcare, housing, or education. A lot of fission boosters like fission simply because they think the tech is cool, not necessarily because it actually makes economic sense. I say that if fission boosters want to fund their hobby and subsidize fission plants, let them. But otherwise I am adamantly opposed to any form of subsidies for the fission industry.

What are you trying to say here? Are we still talking about fuel types here?

Again, let me point out that solar power does not consume any fuel. The materials used to construct the solar panels are not having any power extracted from them. And secondly, nuclear power plants require construction materials too. … So I really don’t know what kind of comparison you are asking for here.

Also 10s of billions is still insignificant for any power, transport, or healthcare infrastructure in the scheme of things -

Bullshit. If you can get the same amount of reliable power by just slapping up some solar panels, wind turbines, and batteries, then obviously the cost is not insignificant.

That sentence shows that you really aren’t thinking about this as a practical means of power generation. I’ve found that most fission boosters don’t so much like actual nuclear power, but the idea of nuclear power. It appeals to a certain kind of nerd who admires it from a physics and engineering perspective. And while it is cool technically, this tends to blind people to the actual cold realities of fission power.

There’s also a lot of conspiratorial thinking among the pro-nuclear crowd. They’ll blame nuclear’s failures on the superstitious fear of the unwashed ignorant masses or the evil machinations of groups like Greenpeace. Then, at the same time, they’ll ignore the most bone-headedly obvious cause of nuclear’s failure: it’s just too fucking expensive.

That’s for the nuclear industry to figure out. But the fact that companies from different companies originating in entirely different countries suggest that it’s a problem with the tech itself.

The hard truth many just don’t want to admit is that there are some technologies that simply aren’t practical, regardless of how objectively cool they might be. The truth is that the nuclear industry just has a very poor track record with being financially viable. It’s only ever really been scaled through massive state-run enterprises that can operate unprofitably. Before solar and wind really took off, the case could be made that we should switch to fission, even if it is more expensive, due to climate concerns. But now that solar + batteries are massively cheaper than nuclear? It’s ridiculous to spend state money building these giant white elephants when we could just slap up some more solar panels instead. We ain’t running out of space to put them any time soon.

“85% of used fuel rods can be recycled” is like “We can totally capture nearly all the carbon from burning fossil fuels and then remove the rest from the atmosphere by other means”.

In theory it’s correct. In reality it’s bullshit that will never happen because it’s completely uneconomical and it’s just used as an excuse to not use the affordable technology we already have available and keep burning fossil fuels.

If something is Nuclear enough it can generate heat

That’s an extreme oversimplification. RTGs don’t use nuclear waste. Spent reactor fuel still emits a large amount of gamma and neutron radiation, but not with enough intensity to be useful in a reactor. The amount of shielding required makes any kind of non-terrestrial application impossible.

The most common RTG fuel is plutonium (²³⁸Pu, usually as PuO₂), which emits mostly alpha and beta particles, and can be used with minimal shielding. It can’t be produced by reprocessing spent reactor fuel. In 2024, only Russia is manufacturing it. Polonium (²¹⁰Po) is also an excellent fuel with a very high energy density, but it has a prohibitively short half-life of just over a hundred days. It also has to be manufactured and can’t be extracted.

⁹⁰Sr (strontium) can be extracted from nuclear fuel, and was used by early Soviet RTGs, but only terrestrially because the gamma emission requires heavy shielding. Strontium is also a very reactive alkaline metal. It isn’t used as RTG fuel today.

You don’t need lithium. That’s just the story told to have an argument why renewables are allegedly bad for the environment.

Lithium is fine for handhelds or cars (everywhere where you need the maximum energy density). Grid level storage however doesn’t care if the building houising the batteries weighs 15% more. On the contrary there are a lot of other battery materials better suited because lithium batteries also come with a lot of drawback (heat and quicker degradation being the main ones here).

PS: And the materials can also be recycled. Funnily there’s always the pro-nuclear argument coming up then you can recycle waste to create new fuel rod (although it’s never actually done), yet with battery tech the exact same argument is then ignored.

They’re currently bringing sodium batteries to market (as in “the first vendor is selling them right now”). They’re bulky but fairly robust IIRC and they don’t need lithium.

you know that grid storage does not always mean “a huge battery”, you can also just pump water in a higher basin oder push carts up a hill and release the potential energy when you need it…

Yeah, lithium mining and processing is extremely toxic and destructive to the environment. On one hand, it’s primarily limited to a smaller area, but on the other hand, is it sustainable long-term unless a highly efficient lithium recycling technology emerges? And yes, I know there are some startups that are trying to solve the recycling problem, some that are promising.

This is old news now! Here’s a link from 5 years ago. https://www.forbes.com/sites/jeffmcmahon/2019/07/01/new-solar--battery-price-crushes-fossil-fuels-buries-nuclear/

This is from last year: https://www.lazard.com/research-insights/2023-levelized-cost-of-energyplus/

As to uptime, they have the same legal requirements as all utilities.

I was pro nuke until finding out solar plus grid battery was cheaper.

Uptime is calculated by kWh, I.E How many kilowatts of power you can produce for how many hours.

So it’s flexible. If you have 4kw of battery, you can produce 1kw for 4hrs, or 2kw for 2hrs, 4kw for 1hr, etc.

Nuclear is steady state. If the reactor can generate 1gw, it can only generate 1gw, but for 24hrs.

So to match a 1gw nuclear plant, you need around 12gw of of storage, and 13gw 2gw of production.

This has come up before. See this comment where I break down the most recent utility scale nuclear and solar deployments in the US. The comentor above is right, and that doesn’t take into account huge strides in solar and battery tech we are currently making.

The 2 most recent reactors built in the US, the Vogtle reactors 3 and 4 in Georgia, took 14 years at 34 billion dollars. They produce 2.4GW of power together.

For comparison, a 1 GW solar/battery plant opened in nevada this year. It took 2 years from funding to finished construction, and cost 2 billion dollars.

So each 1.2GW reactor works out to be 17bil. Time to build still looks like 14 years, as both were started on the same time frame, and only one is fully online now, but we will give it a pass. You could argue it took 18 years, as that’s when the first proposals for the plants were formally submitted, but I only took into account financing/build time, so let’s sick with 14.

For 17bil in nuclear, you get 1.2GW production and 1.2GW “storage” for 24hrs.

So for 17bil in solar/battery, you get 4.8GW production, and 2.85gw storage for 4hrs. Having that huge storage in batteries is more flexible than nuclear, so you can provide that 2.85gw for 4 hr, or 1.425 for 8hrs, or 712MW for 16hrs. If we are kind to solar and say the sun is down for 12hrs out of every 24, that means the storage lines up with nuclear.

The solar also goes up much, much faster. I don’t think a 7.5x larger solar array will take 7.5x longer to build, as it’s mostly parallel action. I would expect maybe 6 years instead of 2.

So, worst case, instead of nuclear, for the same cost you can build solar+ battery farms that produces 4x the power, have the same steady baseline power as nuclear, that will take 1/2 as long to build.

Yeah let me imagine a supervolcano explosion of that scale to effect global weather patterns. What do you think will happen to your reactors? No, they are not indestructable just because they can handle an earthquake of normally expected proportion.

Nature catastrophes are the top 1 danger to nuclear energy. See Fukushima.

And the real question here would be a comparison between risk of a nuclear accident event and a renewables-impacting climate event.

And hey, you know what, that’s almost got a point. Firstly, I’m in the US, and I’ll freely admit that my comment was highly US-normative. However, I believe my comment on government corruption stands for the US case, where there is an insane amount of space that is already partly-developed in random bits of desert.

Now, let’s get into your claims against the Netherlands case, aside from the ad-hominem of your incredibly condescending tone. Let’s do some “basic fucking maths”, thou king of Numenor:

1. Unless the IEA is very, VERY wrong, your claim that the Netherlands consumes “2600 petajoule per day” is INSANELY high. Every statistic I can find shows electricity consumption being between 113 [2] and 121 [1] Terawatt-hours per annum. Let’s divide that larger value by 365 (assuming uniform seasonal demand), then convert that into joules, and we get 1.19 Petajoules per day. more than a THOUSAND times smaller than your number.
2. Secondly, this “just 1 small country” bit is spurious, since your “small country” is the 33rd-greatest electricity consumer in the world for the 77th highest population [2]
3. The assumption that you must store an entire day’s worth of energy demand is ludicrous. Let’s be generous and assume that you have to store 50% of the day’s energy demand, despite the fact that the off-hours are during the night, when electricity demands fall off.
4. Next, let us point out that we don’t need to abandon literally every other method of energy generation. From wind energy to, yes, nuclear, the Netherlands is doing quite well for itself outside of solar. Let’s assume that we need to cover all of the electricity that is currently produced using coal, oil and natural gas. All other sources already have infrastructure supporting them, including the pre-existing solar. This amount comes to about 48% [1], so let’s assume 50%.
5. Now, we need to cover 50% of 50% of 1.9 petajoules at any one time, or 475 gigajoules, at any one time.
6. Because I neither want nor need your supposedly-charitable assumptions, let’s use the actual numbers from ARES in Nevada:

• Their facility’s mass cars total 75000 tons in freedom units, or about 68040000 kg. [3]
• They claim 90+% efficiency round-trip [4], but let’s assume that your condescending tone has made the train cars sad, so they’re having a bad day, and only run at 80% efficiency, despite the fact that we’ve known how to convert to and from GPE with insane efficiency ever since Huygens invented the fucking pendulum clock.

7. Now, is this perfect for everywhere? Of course not. Not everywhere has the open space necessary. The ARES site requires a straight shot about 5 miles long, but they managed to find one that, in that distance, drops 2000 feet (~610 m) [5]
8. Now, let’s do the math together: 475000000000J / 10m/s^2 / 68040000kg / 80% Efficiency = 880m total elevation needed
9. Thus, unless my math is quite off, we would only need 2 of the little proof-of-concept ARES stations running at 80% efficiency to more than cover the energy storage needs required for your country to completely divest from fossil fuels and go all-in on solar for the remainder of your needs.

Quod Erat Fucking Demonstrandum.

[1] https://www.iea.org/countries/the-netherlands [2] https://en.wikipedia.org/wiki/List_of_countries_by_electricity_consumption [3] https://aresnorthamerica.com/nevada-project/ [4] https://aresnorthamerica.com/gravityline/ [5] https://energy.nv.gov/uploadedFiles/energynvgov/content/Programs/4 - ARES.pdf

ETA: the F in QEFD, as well as rectify a quote (“just 1 small country”)