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Retric 3 days ago

> Most of it are fake costs due to regulation.

It’s really not, nuclear inherently requires extreme costs to operate. Compare costs vs coal which isn’t cost competitive these days. Nuclear inherently need a lot more effort refining fuel as you can’t just dig a shovel full of ore and burn it. Even after refining you can’t just dump fuel in, you need fuel assemblies. Nuclear must have a more complicated boiler setup with an extra coolant loop. You need shielding and equipment to move spent fuel and a spent fuel cooling pond. Insurance isn’t cheap when mistakes can cost hundreds of billions. Decommissioning could be a little cheaper with laxer standards, but it’s never going to be cheap. Etc etc.

Worse, all those capital costs mean you’re selling most of your output 24/7 at generally low wholesale spot prices unlike hydro, natural gas, or battery backed solar which can benefit from peak pricing.

That’s not regulations that’s just inherent requirements for the underlying technology. People talk about small modular reactors, but small modular reactors are only making heat they don’t actually drive costs down meaningfully. Similarly the vast majority of regulations come from lessons learned so yea they spend a lot of effort avoiding foreign materials falling into the spent fuel pool, but failing to do so can mean months of downtime and tens of millions in costs so there isn’t some opportunity to save money by avoiding that regulation.

AnthonyMouse 3 days ago | parent | next [-]

> Nuclear inherently need a lot more effort refining fuel as you can’t just dig a shovel full of ore and burn it. Even after refining you can’t just dump fuel in, you need fuel assemblies.

It's true that a pound of nuclear fuel costs more than a pound of coal. But it also has a million times more energy content, which is why fuel is only 15-20% of the operating costs compared to >60% for coal. And that's for legacy nuclear plants designed to use moderately high enrichment rates, not newer designs that can do without that.

> Nuclear must have a more complicated boiler setup with an extra coolant loop.

You're describing a heat exchanger and some pipes. If this is the thing that costs a billion dollars, you're making the argument that this is a regulatory cost problem.

> You need shielding and equipment to move spent fuel and a spent fuel cooling pond.

Shielding is concrete and lead and water. None of those are particularly expensive.

Equipment to move things is something you need at refueling intervals, i.e. more than a year apart. If this is both expensive and rarely used then why does each plant need its own instead of being something that comes on the truck with the new fuel and then goes back to be used at the next plant?

> Insurance isn’t cheap when mistakes can cost hundreds of billions.

This is the regulatory asymmetry again. When a hydroelectric dam messes up bad enough, the dam breaks and it can wipe out an entire city. When oil companies mess up, Deep Water Horizon and Exxon Valdez. When coal companies just operate in their ordinary manner as if this is fine, they leave behind a sea of environmental disaster sites that the government spends many billions of dollars in superfund money to clean up. That stuff costs as much in real life as nuclear disasters do in theory. And that's before we even consider climate change.

But then one of them is required to carry that amount of insurance when the others aren't. It should either be both or neither, right?

virtue3 3 days ago | parent | next [-]

The problem with nuclear mistakes is they aren't a few decades. They can be measured in centuries.

So yeah. Regulation.

Don't build a damn LWR on a fault line (Fukushima) 3mile Island - don't have so many damn errors printing out that everything is ignore Chernobyl - we all know I think. It's still being worked on to contain it fully. Goiânia accident (brazil) - caesium-137 - Time magazine has identified the accident as one of the world's "worst nuclear disasters" and the International Atomic Energy Agency (IAEA) called it "one of the world's worst radiological incidents". (and this was just a radiation source, not a nuclear plant)

So yeah. Oil has bad disasters. Nuclear has EPIC disasters.

I think what is missing in your argument is not that these pieces are difficult. It's that combining all of them adds to a significant amount of complexity.

It's not JUST a heat exchanger. It's a heat exchanger that has to go through shielding. And it has to operate at much higher pressures than another type of power production facility would use. Which adds more complexity. And even greater need of safety.

I'm not arguing against Nuclear; I think it's incredibly worthwhile especially in the current age of AI eating up so much power in a constant use situation. But I do think it needs to be extremely regulated due to the risks of things going south.

DennisP 3 days ago | parent | next [-]

And then there's coal. The difference between nuclear and coal is that when nuclear has a horrible accident, it kills fewer people than coal kills as part of its normal expected operation.

ViewTrick1002 3 days ago | parent | next [-]

The great thing is that coal is not the alternative in 2025.

Renewables are forcing enormous amounts of coals and fossil gas off grids around the world as we speak.

opo 2 days ago | parent | next [-]

>The great thing is that coal is not the alternative in 2025.

Unfortunately, there is a country that shut down nuclear power plants while they still have operating coal plants. Over time, coal use is declining in Germany, but that isn't the story so far in 2025:

>…The share of electricity produced with fossil fuels in Germany increased by ten percent between January and the end of June 2025, compared to the same period one year before, while power production from renewables declined by almost six percent, the country’s statistical office

>… Coal-fired power production increased 9.3 percent, while electricity production from fossil gas increased by 11.6 percent.

https://www.cleanenergywire.org/news/fossil-electricity-prod...

Shutting nuclear power plants down when you are still burning coal is almost unbelievable... I don’t think future generations will look kindly on countries who shut down a clean form of power while they still are running the most dangerous and dirty form of power generation ever created.

ViewTrick1002 2 days ago | parent [-]

Personally I would of course prefer to phase out fossil fuels before nuclear power. But we are where we are in 2025 and there is no point crying over spilled milk.

We can only look forward and make sure we spend our money wisely. We also need to decarbonize aviation, shipping, agriculture, industry, construction etc. The grid is not the end, it is only the beginning of our decarbonization journey.

The fastest, cheapest and most efficient way of quickly displacing fossil based energy production today is building renewables and storage.

opo 2 days ago | parent [-]

>...But we are where we are in 2025 and there is no point crying over spilled milk.

It would be one thing if Germany's bad mistakes in this area only affected Germany. Unfortunately people downwind of Germany die because it is still burning coal. Unfortunately climate change will affect everyone.

>...We also need to decarbonize aviation, shipping, agriculture, industry, construction etc. The grid is not the end,

Many of the changes needed to decarbonize those industries will rely on using electricity, so the grid is critical.

>...The fastest, cheapest and most efficient way of quickly displacing fossil based energy production today is building renewables and storage.

We will see if Germany is still burning coal and natural gas when countries like Finland are not.

ViewTrick1002 2 days ago | parent [-]

Is your suggestion that Germany instead of building renewables quickly displacing said coal instead invests their money in nuclear power?

That would mean they get a fraction of the capacity (in TWh) online and the people downwind of Germany would have to live with the emissions as they stand today without any abatement until the mid 2040s.

Does that sound reasonable?

opo 2 days ago | parent [-]

Unfortunately Germany dug itself into a big hole and the choices aren’t that great. (Yes, continue to build more solar and wind. Though that is what has been happening in 2025, and coal use has increased this year due to the variability of renewable sources.) To move away from coal in a more reasonable timeframe, other approaches could also be done. Like I mentioned in a previous comment, I am sure Germany will decarbonize before Poland, but that is kind of a low bar. Some ideas:

- Restart the nuclear power plants that are feasible to restart. The last 3 plants were only shut down in 2023 - it isn't like all the plants were shut down in 2011. It may very well be that Germany doesn’t feel it has the expertise to run nuclear power plants in the long term, so once the power isn’t needed or can be replaced by clean energy (either produced in Germany or imported), feel free to shut down the nuclear plants.

- Work with Denmark and France to import more of their power that is not coal based.

- Reward conservation more.

- Move the big industrial users of electricity out of Germany.

Some of these alternatives are likely not palatable, but like I said, Germany dug itself into a hole. Any of these alternatives sounds better than essentially deciding instead to murder people by burning coal when you have other options.

ViewTrick1002 2 days ago | parent [-]

This comment shows that you don’t really grasp how the German grid works.

The German grid is currently constrained north-south due to limited transmission capacity. Over production of renewables in the north and over consumption in the south.

The reactors the pro-nuclear lobby in Germany identified as ”most easily restartable” are in the north.

Therefore restarting them is a pure waste of money. It does not solve any problems Germany has with its grid.

Then it comes down to the cost question. You can maintain a piece of infrastructure forever but at some point the costs does not justify the gain. Better spend the money on renewables and storage instead.

An example of such stupidity is Diablo Canyon in California requiring a $12B subsidy on top of regular income for selling electricity to run 5 extra years from 2025 to 2030.

You do know that France is on a downward trend of nuclear power as well? Reactors are entering end of life and the EPR2 program is in absolute shambles.

Currently they can’t even agree on how to fund the absolutely insanely bonkers subsidies.

Now targeting investment decision in H2 2026… And the French government just fell because they are underwater in debt and have a spending problem which they can’t agree on how to fix.

A massive handout to the dead end nuclear industry sounds like the perfect solution!

opo a day ago | parent [-]

>Over production of renewables in the north and over consumption in the south.

Well I guess it is impossible to upgrade the grid in any kind of reasonable timeframe in Germany. There are still other options that could be done to hasten the end of burning coal - I pointed out a few, there are likely others.

>Then it comes down to the cost question. You can maintain a piece of infrastructure forever but at some point the costs does not justify the gain. Better spend the money on renewables and storage instead.

Yes it is a question. Unfortunately you have given no evidence of the actual costs.

>...You do know that France is on a downward trend of nuclear power as well?

In 2014 France set a goal to reduce nuclear's share of electricity generation to 50% by 2025. This target was delayed in 2019 to 2035, before being abandoned in 2023. (I am sure France is also trying to increase renewables and storage.)

>An example of such stupidity is Diablo Canyon in California requiring a $12B subsidy on top of regular income for selling electricity to run 5 extra years from 2025 to 2030.

This comment shows you don't really grasp the issue of power in CA. The 12 billion dollar estimate included costs unrelated to Diablo Canyon according to PG&E. Their estimate is closer to 8B, of which the majority will be covered by selling the electricity. They have a 1.1 billion dollar grant to help with some of the rest, though unclear how much the state will have to subsidize things in the end. The issue is that Diablo Canyon provides about 1/4 of the clean power in CA and can provide it when renewables can't - like every other place, CA currently has a tiny amount of grid storage. Without Diablo Canyon, CA will likely have to buy power from coal plants in other states. So CA is willing to pay extra to avoid having to burn coal. That is different than Germany that decided it would rather burn coal than use nuclear.

We will see when Germany actually stops during fossil fuels. Unfortunately, there certainly do seem to be some advocates of solar/wind who would prefer to go decades (or maybe much longer) burning coal and killing people and destroying the environment when their country had the option to use a clean energy source.

ViewTrick1002 a day ago | parent [-]

Upgrades are on the way but you were trying to frame it as a desperate issue to solve immediately, without realizing your solution didn’t solve anything.

For evidence have a read:

https://www.ewg.org/news-insights/news/2024/06/pge-quietly-s...

Just keep hiking the rates in a monopolized system. All good!

You do know that California in recent years has cut fossil gas usage by 40% due to storage? Many evenings batteries are the largest producer in the Californian grid for hours on end. Happened yesterday for example.

But batteries are of course insignificant. Just delivering the equivalent to 8 nuclear reactors pretty much removing the duck curve.

I suggest you update your worldview to 2025.

https://www.caiso.com/todays-outlook/supply

tempodox 3 days ago | parent | prev | next [-]

> coal is not the alternative in 2025.

Except in uncle Donald’s kingdom with “America’s Beautiful Clean Coal Industry” (yes, seriously):

https://www.whitehouse.gov/presidential-actions/2025/04/rein...

ViewTrick1002 3 days ago | parent [-]

Lets come back if that leads to an increase of coal usage instead of being posturing like most else they do.

Coal has been uncompetitive since the advent of the CCGT plant and was stagnating long before the fracking boom.

DennisP 2 days ago | parent | prev [-]

Yes, and in terms of overall deaths per terawatt-hour, nuclear is similar to renewables.

immibis 3 days ago | parent | prev [-]

The difference between nuclear and coal is that when nuclear has a horrible accident, it kills as many people right here and makes as much land uninhabitable right here as coal does in our enemy countries within its normal expected operation.

Natsu 3 days ago | parent | next [-]

Meltdowns aren't physically possible if we're building newer types of plants, so there can't be a new Chernobyl or even Fukushima if we're using modern types of passively cooled plants.

Retric 3 days ago | parent [-]

There’s generally significant costs and asterisks around such claims.

You’re much better off paying attention to site placement than trying to design something to safety handle getting covered in several meters of volcanic ash Pompeii style.

tedk-42 3 days ago | parent | prev | next [-]

Except for Russia, where else have deaths + land issues happened?

Retric 3 days ago | parent [-]

Not a commercial reactor but US lost 3 people trying to hand operate a small reactor with minimal safety: https://en.wikipedia.org/wiki/SL-1

“On Tuesday, January 3, 1961, SL-1 was being prepared for restart after a shutdown of 11 days over the holidays. Maintenance procedures required that rods be manually withdrawn a few inches to reconnect each one to its drive mechanism. At 9:01 pm MST, Rod 9 was suddenly withdrawn too far, causing SL-1 to go prompt critical instantly. In four milliseconds, the heat generated by the resulting enormous power excursion caused fuel inside the core to melt and to explosively vaporize.”

The industry didn’t just randomly get so risk averse there where a lot of meltdowns and other issues over time.

peterfirefly 3 days ago | parent [-]

Do stupid things and stupid things will happen. There are plenty of similarly stupid accidents on stupidly run construction sites and chemical plants all the time. Also lots of accidents with trains, lots of accidents with temperamental chemicals.

Take this stupid accident, for example:

https://en.wikipedia.org/wiki/Virgin_Galactic#2007_Scaled_Co...

> In July 2007, three Scaled Composites employees were killed and three critically injured at the Mojave spaceport while testing components of the rocket motor for SpaceShipTwo. An explosion occurred during a cold fire test, which involved nitrous oxide flowing through fuel injectors. The procedure had been expected to be safe.

N2O is very good oxidizer + it's a molecule that can fall apart (and turn into N2 and O2) in a very exothermic way if you look at it wrong.

Oops.

Back to SL-1. Nobody was killed by radiation. They were killed by things hitting them hard from the explosion.

> The effort to minimize the size of the core gave an abnormally-large reactivity worth to Rod 9, the center control rod.

> One of the required maintenance procedures called for Rod 9 to be manually withdrawn about four inches (10 cm) in order to attach it to the automated control mechanism from which it had been disconnected. Post-accident calculations, as well as examination of scratches on Rod 9, estimate that it had actually been withdrawn about twenty inches (51 cm), causing the reactor to go prompt critical and triggering the steam explosion.

and:

> At SL-1, control rods would sometimes get stuck in the control rod channel. Numerous procedures were conducted to evaluate control rods to ensure they were operating properly. There were rod drop tests and scram tests of each rod, in addition to periodic rod exercising and rod withdrawals for normal operation. From February 1959 to November 18, 1960, there were 40 cases of a stuck control rod for scram and rod drop tests and about a 2.5% failure rate. From November 18 to December 23, 1960, there was a dramatic increase in stuck rods, with 23 in that time period and a 13.0% failure rate. Besides these test failures, there were an additional 21 rod-sticking incidents from February 1959 to December 1960; four of these had occurred in the last month of operation during routine rod withdrawal. Rod 9 had the best operational performance record even though it was operated more frequently than any of the other rods.

That is insane.

immibis 3 days ago | parent | next [-]

> Back to SL-1. Nobody was killed by radiation. They were killed by things hitting them hard from the explosion.

What's the relevance of this?

Retric 2 days ago | parent | prev [-]

> That is insane.

Hindsight plus other people doing the analysis always makes things seem more obvious.

The people designing this system were not trying to kill the operators. They made tradeoffs that seemed reasonable at the time and then things failed badly because something unexpected happened. The only way to avoid that is to be extremely cautious which then feeds back to nuclear being expensive.

Risk aversion gets expensive, but so does taking risks. That’s the nuclear dilemma. It seems reasonable to say just take more risks, but that’s how you get accidents that people look back on and think how could they be so dumb.

AnthonyMouse 3 days ago | parent | prev [-]

Our enemy countries are West Virginia and Pennsylvania?

frotaur 3 days ago | parent | prev | next [-]

I agree Chernobyl was an epic disaster, but Fukushima ? Last I heard the radiation level are basically normal even close to the reactor, and overall radiation wide there hasn't been much damage if at all.

So it seems that fukushima is an example of something that should have been an EPIC accident, but actually was perfectly fine in the end. I may be wrong, but thats what I remembered from the wikipedia page.

Reason077 3 days ago | parent | next [-]

The costs of cleaning up Fukushima, including the wider effects on the Japanese economy, are estimated to exceed US$200 billion. That makes it a pretty EPIC disaster in economic terms alone.

Even Chernobyl was not really that bad in terms of lives lost. Even taking the worst estimates of long-term deaths from radiation exposure, it killed a tiny fraction of the numbers of people who have died from hydroelectric disasters or from exposure to coal power plant pollution. But that doesn't mean it wasn't a catastrophic disaster for the regional (and wider Soviet) economy.

foota 3 days ago | parent [-]

How much of those wider costs are from them shutting off nuclear plants?

Retric a day ago | parent | next [-]

None

It’s worth considering, but not in that context.

peterfirefly 3 days ago | parent | prev [-]

and how much is from cleaning up things that weren't dirty in the first place?

felipeerias 3 days ago | parent | prev | next [-]

Fukushima was partly an issue of flawed risk assessment. The tsunami that took down the plant was believed to be an incredibly rare even, expected to happen once every ten thousand years.

However, that was a result of faulty assumptions made when the plant was initially planned. With better data and methods, the event would have seemed a lot more likely.

immibis 3 days ago | parent | prev [-]

It was perfectly fine because the operators stole the batteries from all the cars in the parking lot to run the control room. Not something I'd like the continued existence of New York City to rely upon.

chickenbig 3 days ago | parent [-]

> Not something I'd like the continued existence of New York City to rely upon.

Was New York City really at risk? Citation needed.

peterfirefly 3 days ago | parent | prev [-]

> Don't build a damn LWR on a fault line (Fukushima)

Don't put the emergency diesel generators in the basement where they are certain to be flooded if the tsunami wall is too low. Also, don't build too low tsunami walls.

> So yeah. Oil has bad disasters. Nuclear has EPIC disasters.

No. Hydropower has.

https://en.wikipedia.org/wiki/List_of_hydroelectric_power_st...

Retric 3 days ago | parent | prev | next [-]

> which is why fuel is only 15-20% of the operating costs compared to >60% for coal

Nuclear has much higher operating costs than coal. It’s not 20% of 3 = 60% of 1, but it’s unpleasantly close for anyone looking for cheap nuclear power. Especially when you include interest + storage as nuclear reactors start with multiple years worth of fuel when built and can’t quite hit zero at decommissioning so interest payments on fuel matter.

> You're describing a heat exchanger and some pipes. If this is the thing that costs a billion dollars, you're making the argument that this is a regulatory cost problem.

It’s a lot more than that, and far from the only cost mentioned. It’s pumps, control systems, safety systems, loss of thermal efficiency, slower startup times, loss of more energy on shutdown, etc.

> Shielding is concrete and lead and water. None of those are particularly expensive.

Highways don’t use expensive materials yet they end up costing quite a lot to build. Scale matters.

> Equipment to move things is something you need at refueling intervals, i.e. more than a year apart. If this is both expensive and rarely used then why does each plant need its own instead of being something that comes on the truck with the new fuel and then goes back to be used at the next plant?

Contamination with newly spent nuclear fuel = not something you want to move on a highway. It’s also impractical for a bunch of other reasons.

> But then one of them is required to carry that amount of insurance when the others aren't. It should either be both or neither, right?

No nuclear power plants has ever actually been required to carry a policy with that kind of a payout. Taxpayers are stuck with the bill, but that bill doesn’t go away it’s just an implied subsidy.

However, the lesser risk of losing the reactor is still quite substantial. You could hypothetically spend 5 billion building a cheap power plant rather than 20+ billion seen in some boondoggles but then get stuck with cleanup costs after a week.

AnthonyMouse 3 days ago | parent [-]

> Nuclear has much higher operating costs than coal. It’s not 20% of 3 = 60% of 1, but it’s unpleasantly close for anyone looking for cheap nuclear power.

But that's the point, isn't it? You have two types of thermal power plant, one of them has a somewhat lower fuel cost so why does that one have a higher operating cost? Something is wrong there and needs to be addressed.

> It’s a lot more than that, and far from the only cost mentioned. It’s pumps, control systems, safety systems

These things should all costs thousands of dollars, not billions of dollars.

> loss of thermal efficiency, slower startup times, loss of more energy on shutdown, etc.

These are operating costs rather than construction costs and are already accounted for in the comparison of fuel costs.

> Highways don’t use expensive materials yet they end up costing quite a lot to build. Scale matters.

5 miles of highway has around the same amount of concrete in it as a nuclear power plant. We both know which one costs more -- and highways themselves cost more than they should because the government overpays for everything.

> Contamination with newly spent nuclear fuel = not something you want to move on a highway.

Is this actually a problem? It's not a truck full of gamma emitters, it's a machine which is slightly radioactive because it was in the presence of a radiation source. Isn't this solvable with a lead-lined box?

> Taxpayers are stuck with the bill, but that bill doesn’t go away it’s just an implied subsidy.

Have taxpayers actually paid anything here at all? The power plants have paid more in premiums than they've ever filed in claims, haven't they?

> You could hypothetically spend 5 billion building a cheap power plant rather than 20+ billion seen in some boondoggles but then get stuck with cleanup costs after a week.

You could hypothetically build a hydroelectric dam that wipes out a city on the first day. You could hypothetically build a single wind turbine that shorts out and starts a massive wildfire.

Retric 3 days ago | parent | next [-]

> You have two types of thermal power plant, one of them has a somewhat lower fuel cost so why does that one have a higher operating cost? Something is wrong there and needs to be addressed.

Nuclear is inherently vastly more complicated requiring more maintenance, manpower, etc per KW of capacity and thus has more operational costs. A 50+ year lifespan means keeping 50+ year old designs in operation which plays a significant role in costs here.

> 5 miles of highway has around the same amount of concrete in it as a nuclear power plant.

A cooling tower isn’t dealing with any radioactivity and it’s not a safety critical system yet it’s still difficult to build and thus way more expensive per cubic foot of concrete than a typical surface road. When road projects get complicated they can quickly get really expensive just look at bridges or tunnels.

> You could hypothetically build a hydroelectric dam that wipes out a city on the first day.

Hydroelectric dams have directly saved more lives than they have cost due to flood control. The electricity bit isn’t even needed in many cases as people build dams because they are inherently useful. Society is willing to carry those risks in large part because they get a direct benefit.

Wind turbines are closer and do sometimes fail early, but they just don’t cost nearly as much so the public doesn’t need to subsidize insurance here.

throwaway89201 3 days ago | parent | prev [-]

Both of your posts contain very little self-doubt and curiosity. Many points don't seem convincing, and you're consistently not steelmanning the arguments you are replying to.

> it's a machine which is slightly radioactive because it was in the presence of a radiation source

This isn't how radiation works. Material doesn't get radioactive from being in the presence of a radioactive source. Contamination refers to radioactive emitters being somewhere they don't belong.

lstodd 3 days ago | parent | next [-]

> Material doesn't get radioactive from being in the presence of a radioactive source

There is this thing called neutron activation.

But the elephant in the room is of course that coal plants emitted way more radioactivity than nuclear ones even taking into account every disaster on even non-power generation plants.

Retric 3 days ago | parent [-]

That’s not an economic problem for people operating the power plant.

Nuclear power plants need shielding to avoid their workforce being killed off very quickly. Obviously safety standards are much higher than that, but significant shielding is inherently necessary.

LtdJorge 2 days ago | parent | prev [-]

Yes it is. Look up Tokamak radiation shields.

noodletheworld 3 days ago | parent | prev | next [-]

Oh come on.

I consider myself reasonably pro nuclear, but this is just like some developer going:

“Oh yeah, that doesn't seem that hard, I could probably implement that in a weekend”

Fact: hard complicated things are expensive.

There is no “just it’s just some concrete…”.

That is, translated “I do not know what Im talking about”.

Hard things, which require constant, high level, technical maintenance…

Are very expensive.

Theyre expensive to build. Theyre expensive to operate. Theyre expensive to decommission.

Theres no magic wand to fix this.

You can drive down the unit cost sometimes by doing things at scale, but Im not sure that like 100 units, or even say 1000 units can do that meaningfully.

…and how how are we planning on having the 100000s of reactors that you would need for that?

Micro reactors? Im not convinced.

Certainly, right now, the costs are not artificial; if you think they are, I would argue you havent done your due diligence in research.

Heres the point:

Making complicated things cheaper doesnt just magically happen by removing regulations. Thats naive.

You need a concrete plan to either a) massively simplify the technology or b) massively scale the production.

Which one? (a) and (b) both seem totally out of reach to me, without massive state sponsored funding.

…which, apparently no one likes either.

Its this frustrating dilemma where idiots (eg. former Australian government) claim they can somehow magically deliver things (multiple reactors) super cheaply.

…but there is no reality to this promise; its just morons trying to buy regional votes and preserve the status quo with coal.

Real nuclear progress needs realistic plans, not hopes and dreams.

Nuclear power is better; but it is more expensive than many other options, and probably, will continue to be if all we do is hope it somehow becomes easy and cheap by doing basically nothing.

roenxi 3 days ago | parent | prev [-]

> Shielding is concrete and lead and water. None of those are particularly expensive.

Well, anything is expensive in enough quantity. But there is a bit of a tell not covered where of regulatory problems because nuclear plant projects keep going way over budget. Even stupid planners can notice trends of that magnitude and account for them, there is something hitting plant builds that isn't a technical factor and it is driving up costs.

theptip 3 days ago | parent | prev | next [-]

It really is. Nuclear is 100-1000x safer than coal. By insisting on such an aggressive safety target, we force prices up and actually incur much higher levels of mortality - just delivered in the boring old ways of pollution and climate-driven harms.

See https://ourworldindata.org/safest-sources-of-energy for detailed stats.

I think we should target “risk parity with Gas” until climate change is under control.

phs318u 3 days ago | parent | next [-]

When the nuclear industry feels confident enough to not need its own special law to protect it from liability in case of accidents, I’ll feel a little more confident in their safety rhetoric.

https://en.wikipedia.org/wiki/Price%E2%80%93Anderson_Nuclear...

IMTDb 3 days ago | parent | next [-]

This exists because of a cognitive bias: we tend to focus on direct, attributable harm while overlooking larger, diffuse, and indirect harm.

A nuclear plant could operate safely for 50 years, causing no harm, but if it explodes once and kills 10,000 people, there's gonna be a trial. A coal plant could run for the same 50 years without any dramatic accident, yet contribute to 2,000 premature deaths every single year through air pollution—adding up to 100,000 deaths. Nobody notices, nobody is sued, business as usual. It's legally safer today to be "1% responsible for 1000 death" than to be "100% responsible for a single one". Fix this and that law goes away.

LinXitoW 3 days ago | parent | next [-]

Well, no, that's more down to nuclear fans constantly using the worst possible comparisons, and creating false dichotomies. The better comparison are renewables or natural gas, not an ancient technology literally everybody (outside of it's investors) agrees is bad and should go.

IMTDb 3 days ago | parent [-]

Nuclear sits just between wind (slightly more dangerous) and solar (slightly less dangerous) per unit of electricity production, all of them being much safer than hydro; and ridiculously safer than gas, oil and coal. It's a really, really safe option.

Note that these number are a bit old and since then, installation of consumer solar has increased significantly. Installation of solar panels on consumer roofs is much more dangerous than installation of solar panels in solar plants, so death rate for solar are significantly underestimated. Meanwhile accident rates of plant construction (nuclear, solar or otherwise) keep dropping.

https://ourworldindata.org/safest-sources-of-energy

oneshtein 3 days ago | parent | prev [-]

So, for safety, turn off coal first, then turn off nuclear.

DennisP 2 days ago | parent [-]

For safety, the order to turn things off is coal, oil, biomass, natural gas, hydropower, wind, then nuclear.

https://ourworldindata.org/safest-sources-of-energy

DennisP 3 days ago | parent | prev | next [-]

The trouble with liability is that if your nuclear plant has an accident and the cancer rate in the area doesn't detectably change, everybody in the area who gets cancer will sue you anyway.

peterfirefly 3 days ago | parent | prev | next [-]

That law says more about the reliability of US courts than about the safety of nuclear power.

stinkbeetle 3 days ago | parent | prev [-]

https://en.wikipedia.org/wiki/National_Childhood_Vaccine_Inj...

javcasas 3 days ago | parent | prev | next [-]

The problem with nuclear is not the ultra-low probability of incidents, but the potential size of the incidents.

And then you have bad faith actors.

No one would ever put graphite tips in the control rods to save some money, wouldn't they?

No one would station troops during war in a nuclear power plant, wouldn't they?

No one would use a nuclear power plant to breed material for nuclear bombs, wouldn't they?

Finally, no CxO would cheapen out in maintenance for short term gains then jump ship leaving a mess behind, right?

None of that has never ever happened, right?

Llamamoe 3 days ago | parent | next [-]

> The problem with nuclear is not the ultra-low probability of incidents, but the potential size of the incidents.

This is also not as bad as people think. Chernobyl was bad, but the real effect on human health was shockingly small. Fukushima is almost as well-known, and its impact was negligible.

Even if we had ten times as many nuclear disasters - hell, even fifty times more - it would still be a cleaner source of energy than fossil fuels.

Meanwhile the amount of overregulation is extreme and often absurd. It's not a coincidence that most operational nuclear plants were built decades ago.

avianlyric 3 days ago | parent | next [-]

> This is also not as bad as people think. Chernobyl was bad, but the real effect on human health was shockingly small. Fukushima is almost as well-known, and its impact was negligible.

Yeah the final outcome was pretty negligible, especially if we ignore to huge exclusion zone that can’t be occupied for a few hundred years.

But even in those disasters, we often got a lucky as we got unlucky. The worst of the disasters was often avoid by individuals taking extreme risks, or even losing their lives to prevent a greater disaster. Ultimately all of the disasters demonstrated that we’re not very good a reliably managing the risks associated with nuclear power.

Modern reactor designs are substantially safer and better than older reactors. But unfortunately we’ve not building reactors for a very long time, and we’ve lost a huge amount of knowledge and skill associated with building reactors. Which drives up the cost of nuclear reactors even further because of the huge cost of rediscovering all the lost knowledge and skill associated

XorNot 3 days ago | parent [-]

Except for Chernobyl clean up workers, no one lost their lives taking a deliberate risk in any other nuclear incident. And Chernobyl clean up workers didn't die within months either - in fact the story of their health outcomes is quite nuanced, but yes they most definitely took high risks.

In fact Chernobyl is incredibly badly remembered, because the firefighters who died responding to the initial blaze died of sepsis related to beta radiation burns from spending hours wearing their firefighting coats covered in radioactive dust.

Had they been removed promptly and hosed down, those people would've survived because they would not have received essentially a third degree burn over their entire body. And that's the point: they died of sepsis related complications, not any type of unique radiation damage and the Soviet doctors who treated them did get better at it once the protocols were established.

oneshtein 3 days ago | parent [-]

Life of hundreds of millions were/are/will be affected by Chornobyl. Nobody can calculate real death toll of Chornobyl accident because it's impossible to control radiation. Moreover, nobody wants to pay for those deaths or partially lost health.

https://www.bbc.com/future/article/20190725-will-we-ever-kno...

Llamamoe 2 days ago | parent [-]

Millions, sure. Hundreds of millions? Probably not. And don't forget that a LOT went wrong in Chernobyl, it's literally impossible for another disaster of this magnitude to happen again.

oneshtein 2 days ago | parent [-]

Multiple millions by thousands of years. Probably yes.

seabass-labrax 3 days ago | parent | prev [-]

> Chernobyl was bad, but the real effect on human health was shockingly small. Fukushima is almost as well-known, and its impact was negligible.

Was this not due to the expensive clean-up effort in each case respectively? Nuclear reactors may be a lot cleaner than fossil fuels operationally, and reducing their regulation to allow them to replace fossil fuels may well be cleaner on average. But if the once-in-a-blue-moon incident requires huge amounts of money in clean-up costs, then maybe those health and safety regulations would prove themselves cheaper in the long term.

Perhaps the real question is why we do not demand such stringent health and safety standards on fossil fuels, which are operationally dirty and prone to disaster.

Llamamoe 2 days ago | parent | next [-]

Mostly, yes, but also consider that both were exceptional circumstances that happened to outdated reactors.

IIRC Fukushima didn't actually leak enough radiation out to cause any significant environmental harm - quite possibly, most of the evacuations weren't even necessary, and the total toll among responders was only 25, with only 1 death.

Chernobyl was much worse, but other than responders and the high incidence rates of thyroid cancer in young children close to the disaster area, the total casualties were also lower than people assume. A lot of the early estimates were massively inflated.

Honestly it's quite possible that in both cases, we could have done much less relocation and evacuation, especially the fukushima response was largely driven by Japan's fear of nuclear technology.

3 days ago | parent | prev [-]
[deleted]
theptip 3 days ago | parent | prev | next [-]

Agreed that lumpiness is an issue and so in practice you wouldn’t want to argue for coal levels of death-per-MWh.

This concern is, I believe, the crux of why folks are overly-conservative - the few well-known disasters are terrifying and therefore salient.

Plus it’s hard to campaign for “more risk please”. But we should bite the bullet; yeah, more of the stuff you list would happen. And, the tradeoff is worth it.

thoroughburro 3 days ago | parent [-]

> yeah, more of the stuff you list would happen. And, the tradeoff is worth it.

Next to you and your family, then, since you’re happy trading with their risks.

XorNot 3 days ago | parent [-]

I don't know why people think this is a "gotcha"?

I would happily live next to a nuclear power plant, the reason not to is mostly to do with "it's still an industrial site". But like, lakeside land where I'm up or down stream from it but can clearly see it nearby? Sure.

It's one of the rare forms of industry where if I was ever worried about contamination a cheap portable device will warn me remotely. Unlike say, Asbestos and heavy metals...one of which there's a bunch in my current backyard.

adastra22 3 days ago | parent [-]

If being next to a nuclear plant meant id NOT be next to a coal plant, and therefore have better air and better health, I’d gladly take that trade.

kjkjadksj 3 days ago | parent | prev [-]

Climate change is planet wide. No nuclear incident has ever had such a widespread effect.

javcasas a day ago | parent [-]

Have you heard about low-background steel? https://en.m.wikipedia.org/wiki/Low-background_steel

It became scarce because of some very widespread effect.

Retric 3 days ago | parent | prev | next [-]

None of what I said really relates to safety. 3 mile island was a complete non issue when it comes to safety, but one day the nuclear reactor went from a useful tool to an expensive cleanup.

theptip 3 days ago | parent [-]

Agreed, you are talking about non-safety factors. I don’t think they necessitate the price levels we see; for example, look at how cheaply China can build reactors.

I think it’s quite clear that we pay a high safety / regulatory premium in the west for Nuclear.

My point about safety is that we are over-indexing on regulation. We should reduce (not remove!) regulations on nuclear projects, this would make them more affordable.

I don’t think this is a controversial point, if you look into post-mortems on why US projects overrun by billions you always see issues with last-minute adaptations requiring expensive re-certification of designs, ie purely regulatory (safety-motivated) friction.

bobthepanda 3 days ago | parent [-]

The notable thing is that more or less China has kept ramping up solar and wind targets whereas nuclear has been much slower to grow. China's energy requirements are so large that this still represents an absolute number increase, but it's telling that even with as heavy handed an industrial policy's as China's that nuclear has not really lifted off.

> Authorities have steadily downgraded plans for nuclear to dominate China's energy generation. At present, the goal is 18 per cent of generation by 2060. China installed 1GW of nuclear last year, compared to 300GW of solar and wind, Mr Buckley said.

> https://www.abc.net.au/news/science/2024-07-16/chinas-renewa...

mirddes 3 days ago | parent [-]

it would be unwise to put all of ones eggs in someone else's basket.

having as much wind solar and nuclear as possible will ensure humanity has a bright future. 18% seems like a good number. how much storage are they investing in?

bobthepanda 3 days ago | parent [-]

> "They're installing 1GW per month of pumped hydro storage," Mr Buckley said.

Fun fact, pumped hydro was actually developed for nuclear originally in the 70s, since nuclear is a large source of power that is hard to ramp down during low demand periods. https://en.wikipedia.org/wiki/Ludington_Pumped_Storage_Power...

eichin 3 days ago | parent [-]

Err, https://en.wikipedia.org/wiki/Candlewood_Lake was completed in 1928 (for electrical demand regulation.) Much older than nuclear...

bobthepanda 2 days ago | parent | next [-]

My bad. It's still notable that the sixth largest one in the world was still developed for nuclear plants.

Retric 3 days ago | parent | prev [-]

Which is kind of funny as they where storing energy from a hydroelectric power plant, so building a larger dam would have been way more energy efficient.

bobthepanda a day ago | parent [-]

Connecticut isn’t very elevated so a dam at a higher level may not have been very practical.

Kon5ole 3 days ago | parent | prev | next [-]

You are making a common mistake, your source does only considers things that have happened, not things that could happen. But we know what could happen, which is why the security standards have to be high for nuclear power.

MostlyStable 3 days ago | parent [-]

A Chernobyl level incident every single year would kill fewer people than the annual number of people that die from fossil fuel particulate emissions. We can imagine reasonable numbers of accidents and still be sure that it would be dramatically safer than fossil fuels, even ignoring climate change.

And the land rendered uninhabitable would represent less land lost than is expected to be lost from sea level rise, most of which will be extremely hi-value coastal areas.

There is no way you can run the numbers where nuclear, even with dramatically reduced safety standards, is not preferable to fossil fuels. By making it so expensive with such heavy regulations, all we have done is forced ourselves to use the worse-in-all-possible ways fuel source for most of a century, causing millions of premature deaths and untold billions in environmental damages.

Over-regulation of nuclear is high up on the list of greatest civilizational blunders humanity has ever made.

Kon5ole 3 days ago | parent | next [-]

>A Chernobyl level incident every single year would kill fewer people than the annual number of people that die from fossil fuel particulate emissions

This is not true. You are using the lawyers definition of damage from Chernobyl, but the doctor's definition for fossil fuels. Chernobyl was much worse than you believe, but I don't expect to change your mind on that point here.

But why are you arguing as if it's either nuclear power or global warming?

China has added the equivalent of 25 nuclear power plants worth of solar generation yearly for the past couple of years. Not even China is able to build nuclear plants faster than in 5-6 years or so - it takes too many workers, too much resources. It's too little and too slow to make a difference.

Efen if you believe it is safe, Nuclear is clearly a roadblock, or a detour. We should instead build storage and solar, which can add orders of magnitude more power in shorter time.

(But even then we'll have to deal with global warming).

MostlyStable a day ago | parent [-]

No, I'm not. Pick whatever estimate of deaths from Chernobyl you like. Take the highest, most unreasonable estimate. It's still true. And yes, _now_ we have other options. In 1960 we didn't. We have nearly a century of carbon emissions and particulate deaths that were unnecessary. There are literally _millions_ of premature deaths every year as a result of fossil fuel particulate emissions.

Nuclear may not be the best option anymore (I'm skeptical that an ideal power generation mix doesn't include more nuclear than we currently have, but agree that it probably shouldn't be the primary source anymore), that doesn't change the fact that not using it for past 80+ years as our primary energy generation source was a huge civilizational blunder.

Kon5ole 16 hours ago | parent [-]

>No, I'm not. Pick whatever estimate of deaths from Chernobyl you like.

That's the lawyer definition though - because some 50 people sacrificed their lives and because we spent 600 billion euros on remedies during the first 30 years, nobody can prove how bad it might have been.

But scientists will tell you how much caesium and iodine was released per day of that fire burning, the force of the steam explosion that might have been, how close it was to the contaminate the ground water supply and so on.

Then doctors will tell you how that would affect the people living in the fallout areas, and for how long the ground and food supply would be affected.

So if you let go of the lawyer definition, estimates are easily in the double-digit million dead.

Which we risked for a grand total of 28 TWh of electricity produced from Chernobyl.

And that's the bigger point here - even if the risks were way less than they actually are, the payoff is not worth it. Electricity generation causes less than 1/4 of the co2 emissions in the US - road transportation alone is a larger source.

Nuclear is not and never was a solution to global warming. Best case it helps of course, but only until something happens like Fukushima or Chernobyl. The billions spent on those two incidents alone would have had a bigger effect if they were spent subsidizing electric cars, solar panels, battey production and such.

LinXitoW 3 days ago | parent | prev [-]

If you did what nuclear fans did and tried to cover most/all of the load with nuclear, you would necessarily need to build more nuclear power plants, which esp. in Europe would automatically put them closer to population. That would automatically increase the lives lost from catastrophies.

7952 3 days ago | parent | prev | next [-]

The challenge though is how to hit safety levels with a high level of accuracy. And we keep rediscovering how tough that can be. The space shuttle and 737 max are examples of that.

theptip 3 days ago | parent [-]

True, but we have multiple OOMs to play with. How about we try to go from 0.03 to 0.3 deaths per TWh and see how much cheaper we can make it? As long as we stay lower than 30 we didn’t actually make a mistake.

7952 3 days ago | parent [-]

And that might work if there is a linear relationship between apparently unnecessary engineering work and deaths. My argument is that such a relationship does not exist, or is not something we can model.

As this is HN I assume you have some understanding of software/IT etc. Do you think a project manager on a massive software project could do the same with security flaws? Reduce the engineering effort by some percentage and get a predictable increase in security issues? And lets say that this project has massive amounts of sunk costs, is hugely important for the livelihood of everyone involved and also classified and closed source. All you have to do to reduce costs is increase data breaches from one to three per year. Easy. But in a complex human-technical system leadership do not have that kind of control authority.

theptip 2 days ago | parent [-]

I get your point and would be much more inclined to agree if we were talking about trying to hit a 3x risk increase. But we are talking about huge risk margins here, many OOMs.

My problem with your argument is that as framed it’s a fully generic argument against doing anything; there is always a risk of bad outcomes for any action. What we must do in practice is look at risk/reward and try our best to estimate each.

Data breaches are a bad analogy because you are presenting this as “I get to make a bit more money by lowering security”. A better analogy would be something like colonoscopy; some people will die from cancer if you advise nobody has this procedure. Some people will die from complications if people do get this procedure. How do we as a society choose how many people should die and from what? This is a trolley problem, there is no choice where people don’t die as a result of the decision. The answer is that we must do our best to estimate the risks and minimize them.

This is not what we are doing with nuclear right now. We are simply trying to reduce the risk of nuclear, without making any attempt to model the harms that are being introduced.

tonkinai 3 days ago | parent | prev [-]

Climate has never stopped changing since the day the earth was formed, that's why we are here. Keep it "under control" is a wild target.

Terr_ 3 days ago | parent | next [-]

"All wooden boats always leak a little, so stopping people from drilling holes through the hull is a wild target."

It's a strawman to pretend that 10,000 year slow changes are qualitatively the same as what's been going on in the last hundred.

tonkinai 3 days ago | parent | prev [-]

I’d like to apologize. Realized that the wording in my comment wasn’t appropriate.

amarant 3 days ago | parent | prev | next [-]

This statistic is very relevant here, and surprising to many! Deaths per kWh produced for all energy sources.

Solar and nuclear both really stand out immensely as the safer alternatives.

People tend to think of nuclear as dangerous, but that's just propaganda. There has been a lot of anti-nuclear propaganda over the years. But the numbers speak truth:

https://ourworldindata.org/grapher/death-rates-from-energy-p...

https://ourworldindata.org/grapher/death-rates-from-energy-p...

pfdietz 3 days ago | parent [-]

If one tries to quantify the value of those deaths, using the "statistical value of a human life" (somewhere around $12M/death), one finds in the case of both wind/solar and nuclear, using those numbers, the value of those lives contributes negligibly to the cost of energy. This is unlike with coal.

This means that in choosing between solar/wind and nuclear, one cannot use the deaths/TWh to choose between them unless they are almost dead even in other costs (and they are not).

amarant 2 days ago | parent [-]

Aye, but with the amount of coal plants still running, I think the choice is between solar+nuclear or solar+coal

I don't think anyone is arguing nuclear instead of solar. It's both. We need both.

pfdietz 15 hours ago | parent [-]

No, I don't think we need both. In particular, building new nuclear plants would be worse than just putting all that money into renewables + storage. The latter displaces fossil fuels more quickly and more cheaply.

quotemstr 3 days ago | parent | prev | next [-]

> Nuclear inherently need a lot more effort refining fuel as you can’t just dig a shovel full of ore and burn it.

You have to take scale into account. This is 20 years of spent fuel.

https://npr.brightspotcdn.com/dims4/default/cca0b8d/21474836...

That's it. 20 years. Just that, for a constant, quiet output of just about a gigawatt. And that's an old, decommissioned reactor.

You're right about nuclear fuel refinement, packaging, and so on being non-trivial, but the amount of it that you need is so miniscule that if you don't talk about volume you paint a misleading picture.

> small modular reactors are only making heat they don’t actually drive costs down meaningfully.

Mass production makes anything cheaper. Ask the French about their efficient reactor program.

godelski 3 days ago | parent | next [-]

If anyone is interested, here's a picture of decades worth of it[0]. I used to have a video of Russia's, but it seems to have gone down. If somehow you can way back it, here's the link[1].

For more comparison, France produces about 2kg of radioactive waste per year, which delivers 70% of the country's electricity. If you removed all nuclear power reactors you'd still be generating 0.8kg of radioactive waste[2]. It'll work it's way out to on the order of (i.e. approximately) a soda can per person per year.

I think people grossly underestimate the scale of waste in many things. Coal produces train loads a day (including radioactive and heavy metals), while nuclear produces like a Costco's worth over decades. The current paradigm of "we'll store it on sight and figure it out later" isn't insane when we're talking about something smaller than a water tower and having about 300 years to figure out a better solution.

On the flip side, people underestimate the waste of many other things. There are things much worse than nuclear waste too. We spend a lot of time talking about nuclear waste yet almost none when it comes to heavy metals and long lived plastics. Metals like lead stay toxic forever and do not become safer through typical reactions. We should definitely be concerned with nuclear waste, but when these heavy metal wastes are several orders of magnitude greater, it seems silly. When it comes to heavy metals (lead, mercury, cadmium, arsenic, etc) we're talking about millions of tonnage. These things are exceptionally long lived, have shown to enter both our water supply and atmosphere (thanks leaded gasoline!), and are extremely toxic. It's such a weird comparison of scale. Please take nuclear waste seriously, but I don't believe anyone if they claim to be concerned with nuclear waste but is unconcerned with other long lived hazardous wastes that are produced in billions of times greater quantities and with magnitudes lower safety margins.

[0] https://x.com/Orano_usa/status/1182662569619795968

[1] https://www.youtube.com/watch?v=_5uN0bZBOic&t=105s

[2] https://www.orano.group/en/unpacking-nuclear/all-about-radio...

mqus 3 days ago | parent [-]

> For more comparison, France produces about 2kg of radioactive waste per year,

... per capita. Sure, all other waste is bigger than that, but it is still a whole lot and still, usually, power companies do not have to pay for it, the country does. I wonder why.

quotemstr 3 days ago | parent | next [-]

Recycled down to ten grams per person per year.

godelski 3 days ago | parent | prev [-]

  > power companies do not have to pay for it, the country does.
In the sense that you're using this, doesn't this apply to every power company?

Honestly, I'll pay a higher premium to get a power source with lower amounts of waste. Even if it costs more to store that waste. Just the scale of the waste is so massive. The environmental damage. Leaking into water supplies. All those same problems with nuclear fuel are the same with any other fuel. The difference is that in nuclear there is a greater concentration of damage by volume while having dramatically less volume.

To determine what's the cheapest option here you have to assign that damage per volume and then compare the volumes. How much more dangerous do you think nuclear is? 100x? 100000x? How much do you think any given section of the environment is worth? The CO2? The animals and other life impacted? The health costs of people living nearby?

All these things are part of the equation for every single power source out there.

  > per capita
Did you continue reading and see how that's 200mg of long lived waste? France has 66.7 million people. For long lived waste that's 13k tons total. That's a bit shy of the trade waste per capita. So about 67 million times more. Or let's go back to full. For power reactor they only produce 60% of that 2kg, 1.2kg. So that's 80k tons of waste, total, per year.

Seriously, do you understand the scale we're talking here? I mean there's more literal mass in a 1MW solar power plant. You get a few years of all of the nuclear power in France for the weight of a 1MW solar farm. France's nuclear generates 63GWs. That's 63000 times! Nuclear isn't 10000x as expensive, it's not even 10x. So I'm not exaggerating when I'm asking if you think it's 1000x more dangerous or 1000x more costly to the environment. Because that's still giving us a conservative estimate

oneshtein 3 days ago | parent | prev | next [-]

You forgot to include the decommissioned reactor and waste water.

Izikiel43 3 days ago | parent | prev [-]

Reminds me of:

https://xkcd.com/1162/

Retric 3 days ago | parent [-]

Would have been even funnier if they included sunlight, that’s 100% E=MC^2 baby.

gruez 3 days ago | parent | prev | next [-]

>> Most of it are fake costs due to regulation.

>It’s really not, nuclear inherently requires extreme costs to operate. Compare costs vs coal which isn’t cost competitive these days

Maybe it can't be as cheap as coal, but at the very least it shouldn't be absurdly expensive compared to what South Korea and China can do.

https://www.economist.com/content-assets/images/20250906_WBC...

Retric 3 days ago | parent [-]

That’s fair, but everything else is outcompeting coal these days.

So even if we can drop prices down to what China pays, nuclear still loses in China.

Reason077 3 days ago | parent | prev | next [-]

> "It’s really not, nuclear inherently requires extreme costs to operate."

Not just to operate, but to clean up and decommission at their end of life. In the UK, for example, early reactors were built cheaply without much consideration/provision for eventual decommissioning. This has left an enormous burden on future taxpayers, estimated to exceed £260 billion, much of it related to the handling and cleanup of vast quantities of nuclear waste [1].

Thankfully new reactors are being financed with eventual decommissioning costs "priced in", but this is another reason why they've become so expensive.

[1] https://www.theguardian.com/environment/2022/sep/23/uk-nucle...

naasking 3 days ago | parent [-]

> cleanup of vast quantities of nuclear waste

The total high level, dangerous nuclear waste of the entire world since we started playing with nuclear power 70 years ago fits in an American football stadium with plenty of room to spare. "Vast quantities" is a serious exaggeration.

Reason077 3 days ago | parent [-]

The UK alone had the following inventory of nuclear waste as of 2022:

~1,470 m³ "high level" waste totalling ~14,000,000 TBq at year 2100. "High level" waste is that which generates enough heat to require specially designed and managed storage facilitates to prevent spontaneous fires etc.

~496,000 m³ intermediate level waste totalling ~1,000,000 TBq at 2100

~1,340,000 m³ low level waste totalling ~130 TBq at 2100

~2,750,000 m³ very low level waste totalling ~12 TBq at 2100. VLLW is considered safe enough to be disposed at landfill sites subject to certain special considerations. But not until the radioactivity drops below a certain threshold, of course - it still has to be stored at special facilities for many decades until then.

It's a pretty vast and costly problem even if you don't consider this a "vast quantity".

Source for these figures: https://www.gov.uk/government/publications/uk-radioactive-wa...

nicce 3 days ago | parent | prev | next [-]

> It’s really not, nuclear inherently requires extreme costs to operate. Compare costs vs coal which isn’t cost competitive these days. Nuclear inherently need a lot more effort refining fuel as you can’t just dig a shovel full of ore and burn it. Even after refining you can’t just dump fuel in, you need fuel assemblies. Nuclear must have a more complicated boiler setup with an extra coolant loop. You need shielding and equipment to move spent fuel and a spent fuel cooling pond. Insurance isn’t cheap when mistakes can cost hundreds of billions. Etc etc.

Without the fear of dual use, we could just enrich the fuel to higher levels and refuel once per 30 years.

8bitsrule 3 days ago | parent | prev | next [-]

As an expert remarked way back in a time when the nukes were conveniently making plutonium, and kids got free comic books promoting them, and the plans for handling waste seemed sound :

"At present, atomic power presents an exceptionally costly and inconvenient means of obtaining energy which can be extracted much more economically from conventional fuels.… This is expensive power, not cheap power as the public has been led to believe."

— C. G. Suits, Director of Research, General Electric, who was operating the Hanford reactors, 1951.

(Hanford today, sitting on 56M gallons of leaking wastewater, is debating whether that newly-constructed vitrification plant should be allowed to operate, since it'll emit dangerous levels of toxic acetonitrile.)

lclarkmichalek 3 days ago | parent | prev | next [-]

I think if you regulated coal on a linear no threshold risk model, you'd find the costs to be somewhat closer.

Retric 3 days ago | parent [-]

Coal is already losing, and things are only getting worse for steady state production.

Grid solar drives wholesale rates for most of the day really low long before new nuclear gets decommissioned. If nighttime rates rise above daytime rates a great deal of demand is going to shift to the day. Which then forces nuclear to try and survive on peak pricing, but batteries cap peak pricing over that same timescale.

Nuclear thus really needs to drop significantly below current coal prices or find some way to do cheap energy storage. I’m somewhat hopeful on heat storage, but now you need to have a lot of turbines and cooling that’s only useful for a fraction of the day. On top of that heat storage means a lower working temperature costing you thermodynamic efficiency.

llsf 3 days ago | parent | prev | next [-]

Regulation still plays a role in the final cost. Sure it has to be safe. But we need to draw the line. Nuclear is arguably way too safe currently (zero death for a long time). Some regulations could be relaxed to speed up the construction, and make the operations cheaper.

We should have a discussion and review all the regulations surrounding nuclear.

naasking 3 days ago | parent | prev | next [-]

> It’s really not, nuclear inherently requires extreme costs to operate. Compare costs vs coal which isn’t cost competitive these days. Nuclear inherently need a lot more effort refining fuel as you can’t just dig a shovel full of ore and burn it.

This is based on reactors with poor efficiencies that leave a lot of unburned Uranium in their waste. Fast reactors and thorium reactors burn 90% of fissile material, so mining costs are significantly lower for the same power output.

> Insurance isn’t cheap when mistakes can cost hundreds of billions.

Total death count from nuclear is lower than the death count of wind and solar. Falling off roofs happens a lot more frequently than nuclear accidents. This is a nothingburger, particularly given new reactor designs are meltdown proof.

Retric 3 days ago | parent [-]

> Total death count from nuclear

Total death count is a straw man argument, what matters here is the economic costs.

Mining isn’t the major cost, nuclear fuel is expensive for other reasons. Refining gets rid of even more uranium before it gets to the reactor. CANDU tried to get around that by using unenriched uranium, but ran into other issues.

And that’s what pro nuclear people seem to miss, really smart people have been trying to solve this issue for decades there’s no easy solutions with well understood downsides. Let’s quickly build some new design isn’t a solution it’s a big part of why nuclear construction costs are so high.

naasking 2 days ago | parent [-]

> Total death count is a straw man argument, what matters here is the economic costs.

Paying out lawsuits is an economic cost. Regardless, disposing of low level radioactive components of the reactor had to happen at some point, and the cases where it's not offset by decades of recouping on that investment is are incredibly rare. Regardless, this is mostly moot in new designs because they are considerably safer, as I said. What's left is really the regulatory burden. In France and China, they build reactors in less than a decade. Can't happen here in America.

> Mining isn’t the major cost, nuclear fuel is expensive for other reasons.

Which is besides the point, as I said, you get a lot more energy per gram of fuel with modern designs or fast reactors, which mostly mitigates the objection about fuel cost, regardless of what stage the highest cost to obtain fuel is incurred.

Fast reactors weren't pursued because of nuclear weapon proliferation risk, which leaves the modern designs on the table where this risk is even lower than LWR.

Retric 2 days ago | parent [-]

> energy per gram of fuel

That just not a metric that matters.

Fuel is north of 1c/kWh for nuclear reactors, +/- if you count various things as fuel costs, that’s inherently a big deal if you’re trying to compete with 2c/kWh solar.

> Fast reactors weren't pursued because of nuclear weapon proliferation risk

They also just have higher costs per kWh.

naasking 7 hours ago | parent [-]

> That just not a metric that matters.

So you said that fuel costs dominate the cost of energy delivered, I'm saying that you can deliver the same energy while purchasing less fuel, but now you're saying that that's not a metric that matters for the cost of energy delivered. Err, wut?

johnebgd 3 days ago | parent | prev | next [-]

https://www.businesswire.com/news/home/20250908384960/en/Dee...

godelski 3 days ago | parent | prev | next [-]

  > nuclear inherently requires extreme costs to operate.
True, but you also get large amounts of electricity in return.

You're over simplifying and cherry-picking. Is it a big deal if it costs 10x more if it produces 20x more power? What about 10x the cost, 10x the power (so equal $/MWhr) but 0.1x the land? What about 10x cost, 10x power, 1x land, but 10x more power stability? As in fewer outages. How much will you pay for 99.999 than 99.99?

The problem with the vast majority of these energy conversions is that people act like all these costs are captured in the monetary metric. I'm sorry, the real world is complex and a spreadsheet only takes you so far. There's no one size fits all power source. The best one to use depends on many factors, including location. If you ignore everything and hyper focus on one metric you're not making an informed decision that's "good enough" you're arrogantly making an uninformed conjecture.

I'm surprised how often this needs to be said (even to pro nuclear folks), but nuclear physics is complicated. Can we just stop this bullshit of pretentiousness masquerading as arrogance?

m101 3 days ago | parent | prev | next [-]

The comment you reply to talk about regulatory costs but you choose to talk about cost in general. No one thinks its cost is 0.

BrtByte 3 days ago | parent | prev | next [-]

Bottom line: nuclear will never be "cheap and easy," but I think there is headroom to reduce costs meaningfully

Izikiel43 3 days ago | parent | prev [-]

Regarding fuel:

https://xkcd.com/1162/

Retric 3 days ago | parent [-]

IMO it would have been funnier if he added sunlight on that graph.