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Hello world does not compile

https://github.com/anthropics/claudes-c-compiler/issues/1
1•mfiguiere•32s ago•0 comments

Show HN: ZigZag – A Bubble Tea-Inspired TUI Framework for Zig

https://github.com/meszmate/zigzag
1•meszmate•2m ago•0 comments

Metaphor+Metonymy: "To love that well which thou must leave ere long"(Sonnet73)

https://www.huckgutman.com/blog-1/shakespeare-sonnet-73
1•gsf_emergency_6•4m ago•0 comments

Show HN: Django N+1 Queries Checker

https://github.com/richardhapb/django-check
1•richardhapb•20m ago•1 comments

Emacs-tramp-RPC: High-performance TRAMP back end using JSON-RPC instead of shell

https://github.com/ArthurHeymans/emacs-tramp-rpc
1•todsacerdoti•24m ago•0 comments

Protocol Validation with Affine MPST in Rust

https://hibanaworks.dev
1•o8vm•29m ago•1 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
2•gmays•30m ago•0 comments

Show HN: Zest – A hands-on simulator for Staff+ system design scenarios

https://staff-engineering-simulator-880284904082.us-west1.run.app/
1•chanip0114•31m ago•1 comments

Show HN: DeSync – Decentralized Economic Realm with Blockchain-Based Governance

https://github.com/MelzLabs/DeSync
1•0xUnavailable•36m ago•0 comments

Automatic Programming Returns

https://cyber-omelette.com/posts/the-abstraction-rises.html
1•benrules2•39m ago•1 comments

Why Are There Still So Many Jobs? The History and Future of Workplace Automation [pdf]

https://economics.mit.edu/sites/default/files/inline-files/Why%20Are%20there%20Still%20So%20Many%...
2•oidar•41m ago•0 comments

The Search Engine Map

https://www.searchenginemap.com
1•cratermoon•48m ago•0 comments

Show HN: Souls.directory – SOUL.md templates for AI agent personalities

https://souls.directory
1•thedaviddias•50m ago•0 comments

Real-Time ETL for Enterprise-Grade Data Integration

https://tabsdata.com
1•teleforce•53m ago•0 comments

Economics Puzzle Leads to a New Understanding of a Fundamental Law of Physics

https://www.caltech.edu/about/news/economics-puzzle-leads-to-a-new-understanding-of-a-fundamental...
3•geox•54m ago•0 comments

Switzerland's Extraordinary Medieval Library

https://www.bbc.com/travel/article/20260202-inside-switzerlands-extraordinary-medieval-library
2•bookmtn•54m ago•0 comments

A new comet was just discovered. Will it be visible in broad daylight?

https://phys.org/news/2026-02-comet-visible-broad-daylight.html
3•bookmtn•59m ago•0 comments

ESR: Comes the news that Anthropic has vibecoded a C compiler

https://twitter.com/esrtweet/status/2019562859978539342
2•tjr•1h ago•0 comments

Frisco residents divided over H-1B visas, 'Indian takeover' at council meeting

https://www.dallasnews.com/news/politics/2026/02/04/frisco-residents-divided-over-h-1b-visas-indi...
3•alephnerd•1h ago•4 comments

If CNN Covered Star Wars

https://www.youtube.com/watch?v=vArJg_SU4Lc
1•keepamovin•1h ago•1 comments

Show HN: I built the first tool to configure VPSs without commands

https://the-ultimate-tool-for-configuring-vps.wiar8.com/
2•Wiar8•1h ago•3 comments

AI agents from 4 labs predicting the Super Bowl via prediction market

https://agoramarket.ai/
1•kevinswint•1h ago•1 comments

EU bans infinite scroll and autoplay in TikTok case

https://twitter.com/HennaVirkkunen/status/2019730270279356658
6•miohtama•1h ago•5 comments

Benchmarking how well LLMs can play FizzBuzz

https://huggingface.co/spaces/venkatasg/fizzbuzz-bench
1•_venkatasg•1h ago•1 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
19•SerCe•1h ago•14 comments

Octave GTM MCP Server

https://docs.octavehq.com/mcp/overview
1•connor11528•1h ago•0 comments

Show HN: Portview what's on your ports (diagnostic-first, single binary, Linux)

https://github.com/Mapika/portview
3•Mapika•1h ago•0 comments

Voyager CEO says space data center cooling problem still needs to be solved

https://www.cnbc.com/2026/02/05/amazon-amzn-q4-earnings-report-2025.html
1•belter•1h ago•0 comments

Boilerplate Tax – Ranking popular programming languages by density

https://boyter.org/posts/boilerplate-tax-ranking-popular-languages-by-density/
1•nnx•1h ago•0 comments

Zen: A Browser You Can Love

https://joeblu.com/blog/2026_02_zen-a-browser-you-can-love/
1•joeblubaugh•1h ago•0 comments
Open in hackernews

Germany drops opposition to nuclear power in rapprochement with France

https://www.ft.com/content/e99efa2b-338a-4065-89c6-0683d5759ed7
49•chickenbig•8mo ago

Comments

chickenbig•8mo ago
https://archive.is/pJpDt
sylware•8mo ago
With a noscript/basic (x)html browser I get blocked by a javascript captcha...
diggan•8mo ago
I tried telnet and it couldn't even connect. Clearly the fault of the website operator.
sylware•8mo ago
Clearly for properyl educated brains, telnet and noscript/basic (x)html are the same :)

You know, we all know a compiler is actually a shell, :)

Arnt•8mo ago
«“The Germans are telling us: we will be very pragmatic on the issue of nuclear power,” said a senior French diplomat involved in the talks. This meant that “all the biases against nuclear power, which still remain here and there in EU legislation, will be removed.” “This will be a sea-change policy shift,” said a German official.»

Will it really?

https://www.pv-magazine.com/wp-content/uploads/2024/10/Level... is a little unusual, it shows the cheapest nuclear power to be as cheap as the most expensive PV+battery. Still, it's difficult for me to see how this policy change will really change anything.

A real change would require a commitment against market-based production/sale of electricity, e.g. a quota such that power generators using PV/batteries were allowed to produce at most x% of the power in the EO.

preisschild•8mo ago
You quote a PV-lobbying firm as your source, what do you expect?

Also LCOE is just not adequate to compare these two, as you have additional storage and transmission costs for intermittent, weather-dependent sources, whereas most nuclear power plants can be online providing full capacity more than 90% of the time.

LCOE does not account for that.

This IEA report uses a metric that includes those system costs (value-adjusted LCOE, VALCOE) and it shows nuclear energy is definitely competitive. Especially if managed well and power plants aren't prematurely shut down due to political reasons, like they were in Germany.

https://www.iea.org/reports/projected-costs-of-generating-el...

matthewdgreen•8mo ago
Competitive now? Or competitive in the near future? All of the components of renewables, including PV modules and storage, seem to be following an inverse exponential in price. This does not seem to be true of nuclear. It's easy to make conservative assumptions that leave you with a bunch of financially unsustainable infrastructure. This would be a total disaster.
chickenbig•8mo ago
> All of the components of renewables, including PV modules and storage, seem to be following an inverse exponential in price.

Definitely not true of offshore wind. https://news.ycombinator.com/item?id=44012502

Also it seems like a fallacy of composition to believe that a cheap system is formed from cheap individual components.

matthewdgreen•8mo ago
A cheap system is a combination of cheap components, land, and the labor required to assemble it. But in terms of minimized labor costs, you just don’t get a lot better than PV and batteries. And there’s still room for cost reductions from technological improvements and more efficient PV.
chickenbig•8mo ago
> A cheap system is a combination of cheap components, land, and the labor required to assemble it.

The point is that cheap components may require the use of other components to compensate for its deficiencies, and so on.

Solar panels need batteries, synchronous condensers, more transmission capacity, electrolysers, hydrogen storage, backup power stations, demand side response, etc.

ViewTrick1002•8mo ago
And batteries are plummeting in cost as well.

In Australia it was calculated that the extra grid upgrades for renewables comes out to $15B. That is less than the subsidies a single nuclear reactor needs.

To electrify society and industry we need to expand our grids by 1.5-2.5x. Stringing an set of wires, using thicker ones or stepping up the voltage higher is a minuscule cost when already having to uprate the grid.

Gas turbine emergency reserves would be $1B.

chickenbig•8mo ago
> In Australia it was calculated that the extra grid upgrades for renewables comes out to $15B.

AEMO report from 2024 [1] page 13 note 2 very carefully draws the line around what the extra 16B AUD will pay for.

    This value is the net present value of capital costs for transmission augmentation up to 2049-50 only, and does not include the cost of commissioned, committed or anticipated projects.
Committed and anticipated ISP projects :- Project EnergyConnect cost has ~doubled to 4.1B AUD [2] Central West Orana REZ is around 5.45B AUD [3] CopperString has escalated to 14B AUD although that might be partly due to general inflation [4]

> Gas turbine emergency reserves would be $1B.

Gas turbines are now about 2400 USD/kW (3750 AUD/kW), so 1B AUD results in ~267 MW of capacity.

[1] https://aemo.com.au/-/media/files/major-publications/isp/202... [2] https://reneweconomy.com.au/deja-vu-on-transmission-project-... [3] https://www.energyco.nsw.gov.au/sites/default/files/2024-05/... [4] https://www.energyco.nsw.gov.au/sites/default/files/2024-05/... [5] https://gasoutlook.com/analysis/costs-to-build-gas-plants-tr...

ViewTrick1002•8mo ago
Yes. The grid needs to be expanded by 1.5 - 2.5x no matter what to electrify society and industry.

The extra costs are what is needed when more distributed generation is added compared to the baseline.

It also not like the current renewable supply will stop existing.

> The CEO of NextEra Energy said that gas turbines have a multi-year backlog, leading to soaring costs for new gas-fired power plants. Renewables “are cheaper and available right now.”

> “There is a lot of demand for gas turbines right now. You have to get in a long line. It has pushed the prices up,” NextEra Energy CEO John Ketchum said at CERAWeek. NextEra built 16 gigawatts of gas-fired power over the past two decades, and operates a fleet of 26 GW of gas capacity. It also builds renewable energy.

> “We built our last gas-fired facility in 2022, at $785/kW. If we wanted to build that same gas-fired combined cycle unit today…$2,400/kW,” he said. “The cost of gas-fired generation has gone up three-fold.”

Ahh yes, gas turbines are expensive because a supply crunch. Not because they inherently are expensive.

Will this get fixed in the 20 years it would take to build nuclear power? Yes. Will likely even see several cycles of boom and bust before said nuclear plant comes online.

Nuclear power simply is completely out of step with the current energy industry. Too expensive and too slow to build.

chickenbig•8mo ago
> Yes. The grid needs to be expanded by 1.5 - 2.5x no matter what to electrify society and industry.

It is unclear that the grid needs to expand by that much if energy is consumed close to where it is produced, or if energy can be consumed at a less variable rate.

> It also not like the current renewable supply will stop existing.

There are examples of generation technologies getting dropped from the grid (by bans).

> Not because they inherently are expensive.

Before the crunch CCGTs were perhaps $1B/GW ($.7B/GW to $1.15B/GW for peakers according to Lazard 2024). So the $1B for backup isn't enough.

Arnt•8mo ago
https://pris.iaea.org/pris/worldstatistics/threeyrsenergyava... doesn't show many >90% numbers.
chickenbig•8mo ago
> doesn't show many >90% numbers

The US achieves over 90% capacity factor, as does Finland, and Germany used to.

Also capacity and availability are different things; getting pre-empted by solar should not count against the nuclear plant.

ViewTrick1002•8mo ago
> getting pre-empted by solar should not count against the nuclear plant.

But it makes an already horrifically bad economic calculus even worse.

credit_guy•8mo ago
China installs about as much new solar capacity each year as the rest of the world combined. They manufacture the most PVs and have access to the cheapest PVs for that reason. Yet, they also have installed more new nuclear capacity (by far) than the rest of the world combined. Not only they do that, but they also have more nuclear plant being built right now, and more being already approved. Nuclear power is expensive because of the initial construction cost, and that is expensive because we forgot how to build. China didn't.
matthewdgreen•8mo ago
China is building more nuclear power than the rest of the world, but it's not even remotely keeping up with their renewable buildouts [1]. Mostly this is because renewables like PV modules are built in a factory using standardized mass-production techniques, and nuclear plants (currently) are not.

[1] https://cleantechnica.com/2024/01/12/nuclear-continues-to-la...

ethbr1•8mo ago
In terms of scaling PV, there's some lag time before grid-scale issues appear (due to percentage of total) and battery / nuclear et al. are need to solve them.

China is coming from a huge (and still growing) base load of coal. Still 60%+ of electricity mix. [0]

So even with PV's growth, it's not a systemically problematic component.

Compare that to Germany's mix [1], and you realize that China is aiming their reactor building at a problem they'll have in 10 years. (Depending on how aggressively the rest of the world makes China and India stop burning coal...)

[0] https://www.iea.org/countries/china/electricity

[1] https://www.iea.org/countries/germany/electricity

matthewdgreen•8mo ago
I don’t think the percentage of nuclear was ever planned to be high enough to serve as a replacement for storage, and China is badly behind those plans.
ethbr1•8mo ago
Nuclear isn't storage: nuclear is base generation and frequency intertia.

I.e. the thing that makes the grid as a whole reliable even with fluctuating renewables

For that, only a fraction of the total is needed.

matthewdgreen•8mo ago
I mean, unless we're turning electricity into Uranium, nuclear obviously isn't storage.

But when it comes to reliability, storage absolutely is the alternative to generation like nuclear. China already has 57GW of pumped hydro storage (about equal to their whole nuclear fleet), and they added 42GW of new 2.5hr battery storage just in 2024 alone. Given the declining price of both types of storage, it's likely that these will dominate nuclear when it comes to short- and medium-term grid reliability.

credit_guy•8mo ago
What you are saying is correct, but you are not contradicting me. If nuclear was economically completely uncompetitive, China would build zero, or near zero. Yet China has 31 GWe under construction right now. Yes, it's much less than the new solar capacity for a single year, but it's a number that is not zero, and it is also going up rather than down. So China thinks that going forward nuclear is a good investment, most likely because they are climbing the nuclear construction learning curve, and are able to build nuclear for cheaper and cheaper. Just like PVs were 100 times more expensive 30 years ago, there is a possibility that nuclear could be many times cheaper in the future. There is no law of nature that prevents that.
matthewdgreen•8mo ago
China's nuclear plans are based on targets set by the government: they are not necessarily economically competitive. They initially planned to have 18% of their electricity generation produced by nuclear in 2060, which they estimate as 400GW. Those (percentage) targets don't seem realistic anymore given how relatively quickly their renewable deployments are moving. But even if we just consider the 400GW target, they'll need to speed up nuclear construction by an order of magnitude: for the past five years, nuclear additions have been averaging between 1.2-2.3GW per year for the (down from higher numbers before), which is really not enough to meet those targets.

As for the construction learning curve: the main element that made PV inexpensive was the ability to build it in factories at scale. For nuclear the equivalent is SMRs. China is building experimental versions of those too! To the extent that China perfects SMRs and brings the costs way down, they could definitely put nuclear back on track. In a world where cheap SMRs may be a few years away, I question whether building additional AP1000/EPRs is a cost-effective move (even ignoring the possibility of dirt-cheap storage.) China's relatively slow construction rate also makes me wonder if they've come to the same conclusion.

StopDisinfo910•8mo ago
> Will it really?

Yes, it will. As they are currently drafted, the EU energy regulation forces France to invest in renewable and shift away from nuclear it already has to avoid missing the mandated European target as nuclear is not considered renewable. Currently France is being routinely fined despite providing Europe with a ton of clean energy.

The situation is beyond silly.

Arnt•8mo ago
Good point. That is a real change, I agree with that, and it makes a great deal of sense for France to want it.

I was only thinking about new investment.

preisschild•8mo ago
> as nuclear is not considered renewable

Btw, not "all" nuclear is not considered renewable. Making use of the full fuel life cycle through breeder reactors would count as renewable nuclear energy.

chickenbig•8mo ago
> Btw, not "all" nuclear is not considered renewable.

There are perhaps two things being considered here, the EU Renewable Energy Directive [1] and the EU taxonomy for sustainable activities [2]. The former results in France being fined for using nuclear power (as nuclear is not mentioned as being renewable), the latter is a tool for investment categorisation, but weights towards closed cycle and Gen III+ reactors.

[1] https://energy.ec.europa.eu/topics/renewable-energy/renewabl...

[2] https://www.europarl.europa.eu/RegData/etudes/BRIE/2022/6989... page 5

__m•8mo ago
There is zero chance that Germany will build or reopen nuclear power plants. Neither citizens nor power companies want that.
preisschild•8mo ago
> nor power companies want that.

Important Context: Power companies were paid by the state to shut down their nuclear power plants, of course they want free money for not producing anything.

FirmwareBurner•8mo ago
Shutting down nukes costs money to do right, it's not money for nothing.
preisschild•8mo ago
The money for shutting down the nuclear power plant and replacing it with another would have eventually been paid anyway, the money from the govt was for missing out on the income from actual energy production.
__m•8mo ago
That was a one time payment and wouldn't stop them for reopening (accept for the dismantling process) or building new ones
DrillShopper•8mo ago
The Greens will take care of that (kind of ironic, really)
Arnt•8mo ago
The Greens are out of power and I think they're going to stay out of power for a while. The road is free for anyone who wants to invest. (We even have precedent that the state will pay if an operating license is withdrawn, which might happen if the Greens return to power.)
chickenbig•8mo ago
> Neither citizens nor power companies want that.

It looks as if some citizens want it. https://anschalt-konferenz.de/english/

Timon3•8mo ago
While that conference is partially made up of "normal" citizens, there's also an energy consultancy behind it that specifically advocates for nuclear power - so far from just citizens.

https://anschalt-konferenz.de/english/about-us/

chickenbig•8mo ago
> so far from just citizens

And so we come back to the point of the story. Hopefully Germany will stop indirectly funding anti-nuclear organisations that seek to influence other countries. https://www.europarl.europa.eu/doceo/document/E-9-2023-00217...

Timon3•8mo ago
It isn't immediately obvious to me that the French School of Economic Warfare is a trusted source on these topics, especially since you just linked to a parliamentary question - I'll have to read up on that. I just wanted to make sure your link isn't taken as purely a citizens initiative, because it isn't one.
preisschild•8mo ago
Good. If Germany wants to do its own thing, then so be it, but they shouldn't be allowed to block / disincentivize other EU members from using nuclear power.

If we want to incentivize "clean" tech, we should go by an objective metric, such as co2 emissions per kilowatt-hour (where nuclear power is even less emitting than PV/Wind over its total lifecycle)

cwassert•8mo ago
First of all, of course one country should be able to influence other countries in the EU. That's the whole point of the EU.

Secondly, the waste products of nuclear reactors are much more problematic than CO2. Handling of this waste is often overlooked when looking at the costs or CO2 footprint.

And that does not even touch the associated risks.

preisschild•8mo ago
> First of all, of course one country should be able to influence other countries in the EU

Blocking other countries tends to make member states hate each other, which isn't good for the EU.

> Secondly, the waste products of nuclear reactors are much more problematic than CO2

You literally just put them inside steel concrete casks [1] after they were in a pool for a few years. You can even hug those casks safely. Whereas the CO2 is in the air we breathe and in the atmosphere, where it contributes to global warming.

How is this "more problematic"?

1: https://en.wikipedia.org/wiki/Dry_cask_storage

nottorp•8mo ago
> How is this "more problematic"?

Just like more people are afraid of airplane accidents in spite of them being much more likely to die in their own car.

natmaka•8mo ago
> Just like more people are afraid of airplane accidents

This doesn't compute: avoiding being a victim of a plane accident is rather simple: don't hop on any plane and your are something along the .99999 covered.

Avoiding being threatened (and many generations after you) by a nuclear major accident or erring 'hot' nuclear waste is way (WAY!) more difficult.

nottorp•8mo ago
So you are walking to work right? If you avoid airplanes, why not extend this to cars?
s1artibartfast•8mo ago
I don't think it's a slam dunk for banning nuclear, but agree with the parent post that consent to risk is a valid part of the conversation.

Car or plane, the people most exposed to the risk have some choice in the matter - to fly, drive, or be around vehicles.

New considerations are introduced when those exposed to the risks of your choice maybe hundreds of miles away with no say, or even yet to be born.

preisschild•8mo ago
Its very similar. Most people "at risk" for a accident in a nuclear power plant are the workers. There are multiple redundancies that make sure dangerous levels of radioactive isotopes are not released to the public. Thats why every western nuclear power plant has required containment buildings basically forever. Chernobyl didn't, which is why it affected the environment / nearby people.
natmaka•8mo ago
No containment is perfect. In French nuclear plants it has to "contain" most of the stuff for at least 72 hours, but no one sees it as a sealed repository and it sure isn't.
chickenbig•8mo ago
> No containment is perfect.

You set the bar too high. Radiation isn't an all-or-nothing phenomenon; we are exposed to background radiation all the time, so expecting perfection is unjustified. Also a large portion of radioactivity that might escape comes from short-lived isotopes, making short term evacuation a possibility.

natmaka•8mo ago
The bar is the comparison with the other set of pertinent electricity-generating equipments: renewables.

The LNT debate isn't settled, effects of added background radiation is difficult to assess. Moreover the dust escaping from a nuclear plant may be inhaled, ingested... ( https://en.wikipedia.org/wiki/Committed_dose ).

A "large portion" isn't all, and at Fukushima the nuclear accident-triggered evacuation officially made around 2200 victims.

chickenbig•8mo ago
> The bar is the comparison with the other set of pertinent electricity-generating equipments: renewables.

> A "large portion" isn't all

Setting the bar too high.

> The LNT debate isn't settled

Indeed the evidence for effects at smaller and longer term doses is at best weak. We also have a good idea of how DNA repair works. But LNT seems like the least unreasonable conservative way to treat radiation, which may be replaced by something in the up-coming ICRP modernisation.

> Moreover the dust escaping

What sort of dust is this?

> nuclear accident-triggered evacuation officially made around 2200 victims

In hindsight how many of these people needed to be evacuated? https://www.sciencedaily.com/releases/2017/11/171120085453.h... How many people died from overheating due to a lack of electricity in the years after Fukushima?

natmaka•8mo ago
>> A "large portion" isn't all

> Setting the bar too high.

The major underlying point is a comparison: renewables vs. nuclear. And on those accounts (effect of a major accident, waste...) renewables are clear winners.

>> The LNT debate isn't settled > up-coming ICRP modernisation

Not sure about this. This "modernisation" is, AFAIK, stagnant ( https://en.wikipedia.org/wiki/International_Commission_on_Ra... ). Moreover quite different hypothesis are more and more widespread ( https://en.wikipedia.org/wiki/John_Gofman ).

>> Moreover the dust escaping

> What sort of dust is this?

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

Some escape during a nuclear major accident, and very few want it in the air they breath, the food they eat, the water they drink... Even most of those believing this will cause no harm may prefer clean air, food, water...

>> Fukushima nuclear accident

> In hindsight how many of these people needed to be evacuated?

Nobody knew at the time, and they even considered that evacuating the entire region may be necessary! ( https://en.wikipedia.org/wiki/Naoto_Kan#Fukushima_nuclear_ac... ).

Moreover even obedient Japaneses may, during a major nuclear accident, not be willing to obey to "please stay and wait!", especially from those who previously said "the nuclear plant is safe, there will be no problem.'.

In any case even magnificent armchairs' experts babbling 'they could and should stay and wait" years after the event cannot change History.

> How many people died from overheating due to a lack of electricity in the years after Fukushima?

This perspective also leads to preferring renewables as the will to shut down nuclear reactors during such accident, for the lack of an immediate full explanation, and also the imperative to do so after discovering some generic defect), all play for renewables.

The pressing (financial) necessity of building reactors in series (of units as identical as possible, in order to reduce unit costs) reduces their heterogeneity and thus the robustness of the fleet, to the point of making a "generic defect" one of the industry's fears, as the discovery of a defect can coerce int shutting down all reactors of the model concerned.

This is what happened in France at the end of 2021 with the shutdowns of N4 reactors due to as recently in France after discovering stress corrosion cracking ( https://en.wikipedia.org/wiki/Nuclear_power_in_France#Crisis... ) is specific to nuclear. If all the reactors in the fleet were N4, they would all have been shut down!

During and shortly after the major nuclear accident at Fukushima, all other nuclear reactors in Japan were shut down as a precaution and remained so for years. Most of them are still down in 2025, some claim that they are restarting but, 14 years after the accident, the hard facts are clear: https://ourworldindata.org/grapher/share-electricity-nuclear... , reflecting the lack of enthusiasm of the population.

Let's check the trend. Share of produced electricity in Japan:

2011: 75% fossil fuels, 15% nuclear, 10% renewables

2024: 68% , 8.3% , 23%

https://ourworldindata.org/grapher/elec-mix-bar?time=2011&co...

Wind, solar... sources do not pose such a threat because they cannot trigger a catastrophe, so discovering a problem does not mean shutting down all units of the type in question. The heterogeneity of renewable source types (solar, wind, geothermal, biomass, etc.), that of equipment manufacturers and models (wind turbines, photovoltaic panels, etc.), as well as the unit sizes of the latter, which are smaller than those of a nuclear reactor, and their geographical dispersion, increase the robustness of the renewable energy fleet: the probability that a large part of the fleet will break down, develop a fault, produce nothing, etc., is minimal.

No lack of electricity => nobody dies due to the lack of electricity.

chickenbig•8mo ago
> > Moreover the dust escaping from a nuclear plant may be ... > > What sort of dust is this? > https://en.wikipedia.org/wiki/Radionuclide

So this not dust escaping during normal operation. This is an important qualification to your original statement.

> Moreover quite different hypothesis are more and more widespread

I would expect the presence of strong data to reduce the number of viable hypotheses. Chris Busby was very creative coming up with https://en.wikipedia.org/wiki/Christopher_Busby#Second_event... but it looks like overfitting to scant data.

> If all the reactors in the fleet were N4, they would all have been shut down!

If they were all N4 they would have been kept running and had a rolling program of repairs. So I do not agree with your desire to have a heterogeneous fleet of reactors.

> nobody dies due to the lack of electricity

    we estimate that the energy-saving campaigns could have led to nearly 7,710
premature deaths annually in Japan

https://epic.uchicago.cn/wp-content/uploads/sites/2/2023/01/...

Also https://en.wikipedia.org/wiki/2025_Iberian_Peninsula_blackou...

natmaka•8mo ago
> this not dust escaping during normal operation

Indeed, however past accidents now forbid to claim that "this dust will never wander around, everything is under control".

> If they were all N4 they would have been kept running and had a rolling program of repairs.

Nope, as the defect was considered (by EDF itself, the company owning and operating it, chief of the nuclear industry in France, and AFAIK experts agreed) as too dangerous for the reactor to continue to operate.

> your desire to have a heterogeneous fleet of reactors

I don't desire any reactor. I'm only pointing out a major dilemma intrinsic to the "nuclear" approach.

> nobody dies due to the lack of electricity

I explained why a mix of renewables cannot lead to such ordeal, which was induced in Japan by the decision to produce electricity thanks to nuclear reactors and the decision to shut them off after the Fukushima accident.

Iberian blackout: nobody knows the cause for sure, experts are analyzing the event.

s1artibartfast•8mo ago
The point I'm making is about consent and the mechanisms of decision making, not the actual risk levels involved.
natmaka•8mo ago
The misdeeds of some (nuclear...) do not constitute mitigating circumstances for others (cars...).
moi2388•8mo ago
It’s not. Example: I’ve never been in contact with nuclear waste, yet constantly breathe in the co2 from coal plants.
natmaka•8mo ago
Scoop: it now is not about "nuclear vs. coal" but "nuclear vs. renewables".
natmaka•8mo ago
> one country should be able to influence other countries in the EU.

Who pays decide (Germany is the first financial contributor), that's business as usual.

> Whereas the CO2 is in the air

In the UE the question is how much renewables and how much nuclear will be built, and their (dubious) compatibility. Very few want to see more fossil fuel.

The "nuclear waste is a solved challenge" is funny, as experts explicitly state that there is no safe solution (due to risks induced by seismotectonics, intrusions, casks imperfections...).

It's the "Asse II mine" joke all over again: "there will be no problem" followed by "Ouch! Err...". https://en.wikipedia.org/wiki/Asse_II_mine#History

chickenbig•8mo ago
> experts explicitly state that there is no safe solution

What is their definition of safe?

> It's the "Asse II mine" joke all over again

It would be good to see the cost/benefit analysis of the proposal to remove everything from the mine

https://www.nwtrb.gov/docs/default-source/meetings/2018/marc... page 17 has backfilling as the preferred option in 4 out of the 5 assessment categories.

natmaka•8mo ago
> definition of safe?

Some claim that nuclear waste repositories are perfect (0 risk), and experts disagree.

> backfilling

Yay, such a superb gift to our children, their children, their children...!

The underlying point is about how much renewables and how much nuclear may we build in order to tackle current challenges (climate, pollution...), one of the criteria is waste and renewables win hands down.

chickenbig•8mo ago
> Some claim that nuclear waste repositories are perfect (0 risk), and experts disagree.

Disagreement is natural in science as well as engineering. And absolutes are not. Framing nuclear waste disposal, or in fact any enterprise, in terms of finding total agreement on total safety is not useful.

> one of the criteria is waste and renewables win hands down

In what terms are we to assess the waste? By volume, likely number of people killed over the lifetime of the waste, maximum number killed? Do we count the waste from manufacturing as well?

natmaka•8mo ago
> Disagreement

Indeed, my point was about a form of propaganda quite common in France, which states that long-term waste repositories (now work-in-progress) will be perfectly safe. They won't.

> assess the waste?

Most of renewables' waste is recyclable, and more and more is recycled, even wind turbine blades.

> likely number of people killed over the lifetime of the waste

The more types of waste and the longer the lifetime (nuclear...), the more difficult it is.

> count the waste from manufacturing

As far as I understand yes, an adequate life-cycle assessment ( https://en.wikipedia.org/wiki/Life-cycle_assessment ) has to do so, however this is a good point: it may somewhat be neglected.

preisschild•8mo ago
The experts literally said that digging up Asse II was useless and it was safe to leave the waste down there

https://www.ssk.de/SharedDocs/Beratungsergebnisse/DE/2016/20...

It was a political decision by the greens to waste money.

natmaka•8mo ago
There are dissenting opinions: https://en.wikipedia.org/wiki/Asse_II_mine#Current_progress

In not-so-ancient times "experts" were also OK with ocean disposal. https://en.wikipedia.org/wiki/Ocean_disposal_of_radioactive_...

AFAIK few experts now judge adequate to use such mines, and many nations build dedicated repositories.

chickenbig•8mo ago
> There are dissenting opinions

Flat earthers exist too.

> In not-so-ancient times "experts" were also OK with ocean disposal.

The link you gave did not list the effects of ocean disposal; elevated and measurable are not the same as significant or harmful unless you are a firm believer in LNT, although at the bottom of the ocean the background radiation dose from cosmic rays will be less.

natmaka•8mo ago
> File earthers

Whatever they believe or not isn't impeding others' lifes.

The underlying point is about how much renewables and how much nuclear may we build in order to tackle current challenges (climate, pollution...), one of the criteria is waste and renewables win hands down.

> ocean disposal

AFAIK no expert now states that ocean disposal is OK, this is a settled matter since at least 1972 ( https://en.wikipedia.org/wiki/London_Convention_on_the_Preve... ), therefore a bunch of assessments of the current situation for stuff dangerous for at least hundred years doesn't seem pertinent to me.

chickenbig•8mo ago
> Whatever they believe or not isn't impeding others' lifes.

The principle is that we don't seek unanimity before proceeding with something.

> this is a settled matter since at least 1972

Disposal of small amounts of radioactive material at sea and into the air happens (e.g. reprocessing plant water releases, power station tritiated water releases).

An international convention does not settle the science behind ocean disposal. The lack of supporters perhaps reflects the difficulty in carrying out such research, and the problems of trying to change international agreements.

natmaka•8mo ago
> we don't seek unanimity before proceeding with something.

> this is a settled matter since at least 1972

This is an opinion. My (dissenting) one is that the more someone is or could be impacted, the more we have to take his/her opinion into account.

> Disposal of small amounts of radioactive material at sea and into the air happens

It doesn't imply that it is an adequate way to dispose of it.

> An international convention does not settle the science behind ocean disposal

"The main objective of the London Convention is to prevent indiscriminate disposal at sea of wastes that could be liable for creating hazards to human health; harming living resources and marine life; damaging amenities; or interfering with other legitimate uses of the sea." ( https://en.wikipedia.org/wiki/London_Convention_on_the_Preve... )

> The lack of supporters perhaps reflects the difficulty in carrying out such research, and the problems of trying to change international agreements.

Nuclear-waste long-term repositories projects are very expensive and difficult (to the point of many attempts failing flat) everywhere, therefore attempting to convince that ocean-dumping is OK would be useful.

chickenbig•8mo ago
> > > AFAIK no expert now states that ocean disposal is OK

> > Disposal of small amounts of radioactive material at sea and into the air happens

> It doesn't imply that it is an adequate way to dispose of it.

My point is that ocean disposal of radioactive material still happens, and experts are OK with this legal activity happening.

> the more someone is or could be impacted, the more we have to take his/her opinion into account

How do we take into account the unborn generations? Or the unemployed created by high energy prices?

natmaka•8mo ago
> ocean disposal of radioactive material still happens, and experts are OK

As far as I know ''certain Annex I materials dumping may be permissible if present only as "trace contaminants" or "rapidly rendered harmless"'' ( https://en.wikipedia.org/wiki/London_Convention_on_the_Preve... ), that is to say we are far, far away from the massive (hundred of tons) dumps from the previous era ( https://en.wikipedia.org/wiki/Ocean_disposal_of_radioactive_... ).

> take into account the unborn generations?

This is by definition impossible. We may consider opinions of the current generation as reasonable approximations.

> Or the unemployed created by high energy prices?

It could be an argument in presence of a consensus promoting a single way to establish the total cost of a given type of energy source. There isn't, and it doesn't come as a surprise as some unpredictable event (nuclear major accident, nuclear waste wandering in some populated area...) may hugely raise the total cost.

Moreover the total production cost (LCOE) of renewables is already way (and more and more) below nuclear's, and there is no consensual way to assess the cost of firming those sources (cancelling the effects of 'intermittency' on production). Add the general movement towards decentralization...

Nowadays the low-and-ever-lowering-LCOE of renewables more and more threatens the very business model underlying the nuclear industry which finds its foundation in a high load factor.

chickenbig•8mo ago
> we are far, far away from the massive (hundred of tons) dumps from the previous era

Mass of material dumped is not the same as radioactivity or potential harm caused. It looks as if "de minimis" is the key phrase in the convention, in Annex 1.3 . However the IAEA defines "de minimis" in terms of effective dose to people (10 microSieverts/year) per [1] page 14. So point still stands, some level of radioactivity being discharged to the sea is deemed acceptable by experts. If it can be shown that radioactive materials will leach out of the containers very slowly, can this "de minimis" still be met.

> We may consider opinions of the current generation as reasonable approximations.

So we should be able to vote on it?

> Nowadays the low-and-ever-lowering-LCOE of renewables more and more threatens the very business model underlying the nuclear industry which finds its foundation in a high load factor.

Intermittent generators also suffer from cannibalisation (duck curve and all of that), hence the need for subsidies and/or guaranteed prices.

[1] https://www-pub.iaea.org/MTCD/Publications/PDF/te_244_web.pd...

natmaka•8mo ago
> some level of radioactivity being discharged to the sea is deemed acceptable by experts

Doses now tolerated are way below those of ancient dumps. This is a classic ( https://en.wikipedia.org/wiki/The_dose_makes_the_poison )

I wrote "we are far, far away from the massive (hundred of tons) dumps from the previous era" to subsume it.

Moreover the whole Linear No-Threshold and bioaccumulation of radioisotopes debate is far from settled, therefore some experts judge even low doses too dangerous.

> we should be able to vote on it?

IMHO yes. At the very least every citizen paying for it or exposed to some risk has a vote. Direct democracy and referendums let any of them take part, and experts have to convince a majority.

> need for subsidies and/or guaranteed prices

It mainly is an effect of (past and current) massive subsidies granted to other types of energy sources (nuclear, fossil fuels...), the difficult struggle of incoming quickly evolving tech (photovoltaic, wind turbines...) versus amortized plants, and the insufficient amount of energy-storage deployed equipment.

All those burdens are (slowly, this is heavy industry stuff) vanishing and it (more and more quickly) becomes perceptible: https://ourworldindata.org/grapher/electricity-fossil-renewa...

chickenbig•8mo ago
> Doses now tolerated are way below those of ancient dumps.

Do those old dumps generate high doses? Is there evidence of the high doses generated, and if so why isn't this on the wikipedia page? I'm not able to tell whether the dose from an old dump is higher than that from a fuel fabrication, reprocessing plant or nuclear power station.

> therefore some experts judge even low doses too dangerous

One wonders how they get to conferences. Also whether they think about the difference between timber framed and brick buildings, or the background radiation when deciding where to move to.

natmaka•8mo ago
> Do those old dumps generate high doses?

Nobody knows. A new exploration campaign is running (named 'Nodssum' https://www.myscience.org/news/2025/dechets_radioactifs_une_... ), targeting North-Atlantic zones.

> Is there evidence of the high doses generated, and if so why isn't this on the wikipedia page?

AFAIK it now is forbidden to dump highly dangerous waste in non-negligible amounts in the ocean not because there was some accident, but because experts judged that it may trigger one. An approach is to advocate the "let's do whatever please until something breaks", another one is to think about potential consequences THEN to decide.

> dose from an old dump is higher than that from a fuel fabrication, reprocessing plant or nuclear power station.

Those contexts are way more under human-control than an ocean floor.

> One wonders how they get to conferences.

This is a weird way to describe a real, ancient (and IMHO growing, since Fukushima) controversy.

https://en.wikipedia.org/wiki/Linear_no-threshold_model#Cont...

https://en.wikipedia.org/wiki/Radiation_hormesis#Proposed_me...

chickenbig•8mo ago
> Nobody knows. A new exploration campaign is running

Would have thought a long-term study of these sites would have already been underway, given their apparent potential hazard. Surely Greenpeace would want such a study to back up their perspective (or does the position not require such evidence). Anyhow, disposing of the waste ten+ metres under the sea floor would have been much better.

> another one is to think about potential consequences THEN to decide

It is not there was an absence of research into this subject. For instance, the work done by Charles D. Hollister ... https://www.latimes.com/archives/la-xpm-1999-aug-28-mn-4440-... & https://www.jstor.org/stable/26057623 .

> This is a weird way to describe a real, ancient (and IMHO growing, since Fukushima) controversy.

You mistake my sense of humour; I was referring to the increased radiation dose from flying to/from conferences.

natmaka•8mo ago
> Would have thought a long-term study of these sites would have already been underway

As far as I know those studies are far from extensive and there is no permanent effort.

> given their apparent potential hazard

The good'ole "who is in charge, who pays?" is at play.

In many nations the nuclear industry just doesn't care (they dumped their waste, and good bye!) or disappeared after a phase-out.

A fair part of those who can pay those studies prefer to pursue their own endeavors (why would they have to work in order to cope with other's boo-boos?), for example the lack of resources available for oceanographers' core missions is well-known.

> Surely Greenpeace

AFAIK obtaining and maintaining a boat isn't easy for them. Doing so for some bathyscaphe (or similar equipment) and all the associated infrastructure and expertise for what nowadays is a mission (showing the bad effects of civilian nuclear) which is vanishing just as its mere subject is, while others (pollution, overfishing...) are more and more difficult, seems 'ambitious' without any very generous dedicated donation (are you interested in giving?).

> does the position not require such evidence

As already stated experts decided nearly 60 years ago to quit dumping waste in the ocean floor (London Convention), this seems sufficient to me.

> disposing of the waste ten+ metres under the sea floor would have been much better.

Maybe, maybe not. It would have been way more expensive.

> work done by Charles D. Hollister

IMHO the nuclear folks liked to be able to dump waste from a barge. Asking them to dig the seabed...

> You mistake my sense of humour;

Indeed, sorry.

> I was referring to the increased radiation dose from flying to/from conferences.

The point is: anyone decides upon hoping in any jetliner, or abstaining from doing so. A nuclear reactor can trigger a major accident which lets no such choice in a huge area, and for quite a while.

If someone lacerates the tattooed arm of someone else and says "hey, you already hurt yourself with this tattoo" I'm ready to bet that most, including any judge, will not support him.

chickenbig•8mo ago
> seems 'ambitious' without any very generous dedicated donation (are you interested in giving?).

There was plenty of anti-nuclear money floating about years ago; https://www.influencewatch.org/movement/opposition-to-nuclea... lists quite a few organisations interested in opposing nuclear power in the USA. As for the cost, surely a few weeks of boat/submersible time every few years would suffice.

> Maybe, maybe not. It would have been way more expensive.

I was coming from the radiation protection perspective; less liable to dose the denizens of the deep were they to swim next to the waste. Also in the mud is better from an immobilisation perspective.

> IMHO the nuclear folks liked to be able to dump waste from a barge. Asking them to dig the seabed...

Perhaps we are speaking cross-purposes; the digging would be for spent nuclear fuel (or the vitrified waste) where the vast majority of activity is. As for contaminated suits and the like, disposal on land is a good enough option.

> If someone lacerates the tattooed arm of someone else

It is more helpful to study what happens in industry as a whole. Industrial accidents do happen, after which investigations are performed. An intolerance of accidents isn't a viable approach, but reasonable steps must be taken to keep risk to workers low.

natmaka•8mo ago
> plenty of anti-nuclear money floating about years ago

They had much more efficient targets than old waste dumped in the ocean, especially after Tchernobyl and Fukushima!

>> It would have been way more expensive.

> I was coming from the radiation protection perspective

It seems indeed less risky from this perspective, however my point was about the total cost for the nuclear industry: dumping from barges is a breeze, digging the ocean floor is way less easy (and therefore cheap).

Many in the nuclear industry maintain the (quite old and until now vain) hope of obtaining a model of industrial breeder reactor ( https://en.wikipedia.org/wiki/Breeder_reactor ), and therefore are opposed to any waste-disposal option which makes waste-recovery more difficult.

> Industrial accidents do happen

AFAIK in every industrialized nation each and every sector of the industry HAS buy an adequately insurance (civil liability). Nuclear power is the sole exception: it is insured mainly at the taxpayer's expense and the reimbursement limit is ridiculously low. In France a study published by the official nuclear institute (IRSN) showed that a major accident on a single reactor may cost more than 400 billions euros (French ahead: https://www.irsn.fr/savoir-comprendre/crise/cout-economique-... ) , and the limit is about 700 million €. 3 orders of magnitude... The local Cour of Audit periodically yells about this. In the USA the limit is set at 16.1 billion USD ( https://environmentamerica.org/media-center/statement-federa... ).

thatsit•8mo ago
Imho it’s a good thing to not block other countries approach to clean power from a german perspective.

However, there is just no way new nuclear power makes any sense for German grid. Just last week we had negative prices for _every_ day during peak demand (yes, peak demand is usually around noon, it’s just not visible because there is so much solar self-consumption) https://www.energy-charts.info/charts/power/chart.htm?l=en&c...

What‘s really needed is more batteries. At lot more batteries soon.

dapf•8mo ago
Do you have the pixie dust needed to make enough of them at a reasonable price?
Schiendelman•8mo ago
It's less pixie dust than nuclear capacity - the cheapest additional nuclear capacity costs more than the most expensive grid scale batteries.
chickenbig•8mo ago
> the cheapest additional nuclear capacity costs more than the most expensive grid scale batteries.

Nuclear capacity and grid batteries do different things, so the word capacity is rather too imprecise. Otherwise one could argue that a lightning rod has higher capacity and is cheaper than a battery.

ViewTrick1002•8mo ago
Let’s look at Vogtle.

With Vogtles $36.9B we are able to build the equivalent supply in renewables (in TWh) and 10 days of storage at Vogtles 2.2 GWe output.

Spending nuclear money on storage leads to the same thing.

And it puts in context just have horrifically expensive new built western nuclear power is.

chickenbig•8mo ago
> With Vogtles $36.9B we are able to build the equivalent supply in renewables (in TWh) and 10 days of storage at Vogtles 2.2 GWe output.

I can't see what you are proposing to do with the $36.9B. How does this break down into GW of wind and solar and GW (and GWh) of storage?

ViewTrick1002•8mo ago
Lets compare the $36.9B [1] spent on Vogtle with the same money spent on renewables and storage:

Batteries:

- $63/kWh [2] installed and serviced for 20 years = $0.063B per GWh

Large-scale solar:

- A range of $850-$1400/kW [3] = $0.85B - $1.4B per GW

- Capacity factor of 15-30%

Say $1B per GW and 20% for easy round numbers.

Large-scale onshore wind:

- $1300 - $1900/kW [3] = $1.3B - $1.9B per GW

- Capacity factor 30-55%

So say $1.5B/GW and a capacity factor of 40%.

Nuclear power has a capacity factor of ~85% so to match Vogtle's new reactors we need to get to 2.234 GW * 0.85 = 1.9 GW

Solar power:

- 1.9/0.2 = 9.5 GW solar power = $9.5B

Wind power:

- 1.9/0.4 = 4.75 GW wind power = $9B

Compared to Vogtle's $37B we have $28B left to spend on batteries.

- $28B/$0.063B = 444 GWh

444 GWh is the equivalent to running Vogtle for.... 444 GWh/1.9 GW = 233 hours or 9.8 days.

This even ignores nuclear powers O&M costs which are quite substantial. By not having to pay the O&M costs and instead saving them each year after about 20 years we have enough to rebuild the renewable plant.

[1]: https://en.wikipedia.org/wiki/Vogtle_Electric_Generating_Pla...

[2]: https://www.ess-news.com/2025/01/15/chinas-cgn-new-energy-an...

[3]: https://www.lazard.com/media/gjyffoqd/lazards-lcoeplus-june-...

chickenbig•8mo ago
Thank you for providing numbers that guide your thinking.

> - $63/kWh [2] installed and serviced for 20 years = $0.063B per GWh

The Lazard source does provide costs for storage on page 44, ranging from about 3x to 6x the cost of that Chinese tender process. Using these numbers gives a rather different picture with storage of between 3.25 days and 1.6 days, insufficient to make solar really work. Alternatively the fair comparison would be within China.

Another data-point would be the UAE's attempt to firm solar; $6B for 1GW effective baseload output with 18GWh of storage [1]. So the cost of Vogtle could buy 6 of these, providing perhaps 3 or 4 days worth of storage.

[1] https://www.renewableinstitute.org/uae-unveils-6-billion-gro...

matthewdgreen•8mo ago
The Pixie dust is called China. BNEF is tracking 7.9 TWh of annual battery manufacturing capacity for the end of 2025 [1]. Chinese manufacturers' all-in costs for BESS are now down to $66/kWh and still dropping [2]. We (or at least China) have crossed the "knee" of the exponential for battery production, and loads of people don't seem to realize this.

[1] https://about.bnef.com/blog/china-already-makes-as-many-batt...

[2] https://cleantechnica.com/2024/12/24/what-are-the-implicatio...

barbazoo•8mo ago
The term is technology agnostic, just fyi. There are many ways to store energy.
izacus•8mo ago
I wonder if the Spanish also looked at numbers during the day of a very sunny spring week when they designed their power network to fail.
AustinDev•8mo ago
>What‘s really needed is more batteries. At lot more batteries soon.

Germany would have one of the biggest batteries on the continent if they controlled Lake Geneva @ ~341bn liters of water.

Pumped hydro storage is infinitely superior to Li-ion battery storage where it is available. Batteries are good for instantaneous response but lack the stability of water turning a large mass.

Solar creates a difficult environment for base load generators such as hydro, nuclear and nat gas. When it's sunny they nuke the price down to zero or negative but produce nothing when it is not sunny. As evidenced by Spain's recent blackouts you need a healthy mix of generation because renewables are seasonal in nature and not very stable compared to a large mass spinning at the correct frequency.

codingbot3000•8mo ago
fyi, the root cause of the Spain blackout (not blackout) is not yet known.

I won't deny that solar and wind make things harder, but linking the recent blackout to renewables without the facts is only done by fossil/nuclear propaganda orgs and their useful idiots.

The Spanish network had much wilder days before and did not break down. First insights point to possible design flaws in the network.

"healthy mix of generation" is quite funny to read, thinking about nuclear and coal which are not too healthy for the people living close to the plants :-D

AustinDev•8mo ago
You're likely not an electrical engineer by training so I will assume you don't know much about power generation and distribution. (It's worth noting my training in this field is nearly 2 decades old so I'm a bit rusty but I still follow several publications in the field) Engineers have been warning about inertia and voltage control being neglected as renewable penetration has soared. These aren't normally of much concern when you are spinning a large mass to generate AC power.

> fyi, the root cause of the Spain blackout (not blackout) is not yet known.

While the final official reports may not be out initial data has been released and indicates frequency and/or voltage oscillations got out of hand causing generation disconnection and cascading blackouts. Renewable penetration in that area of the grid likely contributed to the brittleness especially in voltage control and inertia management.

"Inertia management is increasingly critical for grids with high renewable penetration. Many such systems now implement inertia floors to limit the maximum rate of change of frequency during disturbances. While inertia is often considered primarily for frequency stability, it also plays a crucial role in preventing loss of synchronism between different parts of the grid. As conventional synchronous generation decreases, careful monitoring and management of system inertia becomes essential to maintain stability during disturbances." [1]

>"healthy mix of generation" is quite funny to read, thinking about nuclear and coal which are not too healthy for the people living close to the plants :-D

I'll give you coal as unhealthy but natural gas is much cleaner and nuclear is entirely clean, save waste management which is a solved problem.

How does nuclear effect residents living nearby? I'm not aware of any reporting of systemic illness near any of Europe's nuclear plants but, I may just be ignorant of the latest research. Care to provide a link?

[1] https://www.powermag.com/understanding-the-april-2025-iberia...

ethbr1•8mo ago
In the context of interia and frequency syncing, I'm guessing nuclear has pretty high capacity, given that the physical-thermal generation side is decoupled from the electricity generation side.

I.e. you can control the amount of thermal you're feeding your turbines, to get the electrical output characteristics you want?

AustinDev•8mo ago
You're correct, nuclear power plants have high inertia and significant flexibility in managing their output due to the decoupling of the thermal generation from the electrical generation.
codingbot3000•8mo ago
Yet they did not help to stabilize the network in Spain, and had to be shut down.
AustinDev•8mo ago
12:03 – 12:07 CEST – first period of oscillations in the grid detected and mitigated. 12:19 – 12:21 CEST – second period of oscillations in the grid detected and mitigated. Since then the grid appeared stable, with no oscillations detected. 12:32:57 – 12:33:17 CEST – a series of generation trips in southern Spain, the first near Granada, the second near Badajoz and the third near Seville causes a loss of 2200 MW in generation capacity. Frequency decreased and voltage increased. 12:33:18 – 12:33:21 CEST – grid frequency of the Iberian Peninsula drops below 48.0Hz. Automatic load shedding is activated.

https://en.wikipedia.org/wiki/2025_Iberian_Peninsula_blackou...

Looks like the first few oscillations were successfully mitigated. I'm not sure what type of generation got cutoff that led to the cascade. Not sure how reliable this infrastructure map is but that area seems to have a pretty good mix of Natural Gas, Hydro Storage and Solar. https://openinframap.org/#9.14/37.4625/-5.8656

codingbot3000•8mo ago
Exactly, and as a consequence of the automatic load shedding, the fission reactors shut down for safety reasons, and had to be cooled using their Diesel generators, which wasn't nice to watch: https://www.lavanguardia.com/vida/20250428/10625069/nucleare...

Which unfortunately meant they were unable to support the "reboot" of the network. That was started in the evening to avoid working hours (we were lucky and hat our electricity back at 18:30, while some people had to wait quite a bit longer). The reboot used mostly hydro, gas, and as much electricity as possible from France and Marocco. (well summed up in https://en.wikipedia.org/wiki/2025_Iberian_Peninsula_blackou...)

I wonder whether there could be a safe mode during load shedding that would not require a complete reactor shutdown. If that were the case, nuclear could have a stabilizing effect same as gas or hydro.

I am quite eager to learn about what really went wrong. We enjoy really cheap consumer prices for electricity (we use it to heat and cool, like in the US), thanks to solar and wind. I hope investing in batteries and network reliability will be enough to mitigate the problems.

AustinDev•8mo ago
>Exactly, and as a consequence of the automatic load shedding, the fission reactors shut down for safety reasons, and had to be cooled using their Diesel generators, which wasn't nice to watch

The shutdown is due to an abundance of caution and is regulatory (in the US). When the grid falls below a certain threshold of stability the reactors are programmatically shutdown. (At least that's how it worked 20 years ago.) They have significant inertia but that only goes so far, as you mentioned until we see the final report we won't know for sure if the shutdown was manual or programmatic.

Depending on how long the Reactors were shutdown down Xeon poisoning could have also been why they took longer to start back up. Xeon poisoning is one of the attributes of our current fission technology that makes Nuclear less able to cope with instability compared to combustion generation.

>I am quite eager to learn about what really went wrong. We enjoy really cheap consumer prices for electricity (we use it to heat and cool, like in the US)

Air conditioning is a great application of Solar especially in the sunbelt. It just makes so much sense. When it is daylight and the Sun is unobstructed A/C draws a lot of power likewise Solar is at peak efficiency. I've never been to Spain but, if you all believe in A/C I may have to stop by next time I'm sailing the Med.

ViewTrick1002•8mo ago
Yes. That is all very important but we have time and time again seen spinning metal grids collapse in similar ways as the Iberian grid.

Instead caused by plants tripping, bugs in software, lack of maintenance etc.

Again. Let’s wait for the final report before drawing any conclusions.

codingbot3000•8mo ago
Thanks for your factful reply :)

Regarding the nuclear risk - it is driven by incidents. If the plant had not incidents, there would be no risk.

E.g. the childhood leukemia risk is double inside a 5km radius, and there is no good explanation for this (except the occasional release of radioactive exhaust in case of incidents). (https://www.bfs.de/DE/bfs/wissenschaft-forschung/wirkung-ris..., link is in German, sorry)

Same is true for the nuclear plant workers. Their cancer risk grows linearly with their exposure - which I assume is also an effect of minor incidents, especially if you exclude lung cancer (smoking was quite popular in the 20th century...). See e.g. https://www.aerztezeitung.de/Medizin/Krebsrisiko-im-Kernkraf...

AustinDev•8mo ago
The childhood Leukemia link is something I didn't know. Very interesting.

On the worker front it makes sense that there is some linear correlation. I wonder how radiation exposure for workers compares to say a fighter jet pilot with 10,000 hours. In a fighter jet you have very little if any protection from radiation present at higher altitudes.

nradov•8mo ago
Batteries are not too healthy for the people living close to the (flammable) plants.

https://www.ksbw.com/article/residents-moss-landing-battery-...

To be clear I'm not at all opposed to grid scale battery storage if it can be built out safely and economically. But let's not pretend that it's safer than nuclear power. Modern nuclear plant designs with proper containment and backup systems have an excellent safety record.

codingbot3000•8mo ago
Good point about the flammability, wasn't aware of that.

The safety mechanisms are part of why nuclear is so ridiculously expensive. I think every major power needs nuclear infrastructure for their nuclear weapons, but I don't think it is economically viable anymore as a power source, whatever the propaganda says. Maybe for the US, China, and Russia who have enough empty wastelands to dump the nuclear waste at low cost. Finland and Sweden their granite. Everyone else has to do sth. expensive.

realitycheck99•8mo ago
how is uranium not already a "battery"
barbazoo•8mo ago
Isn’t Uranium more like a fuel?
AustinDev•8mo ago
You can't put the alpha particles back into the chunk of Uranium. Well, not easily or efficiently.
exabrial•8mo ago
> Just last week we had negative prices for _every_ day during peak demand

Burning coal for negative prices is not a good thing.

ZeroGravitas•8mo ago
Inflexible generation getting fined for inflexibility leads to innovations like running two shifts of coal generation. The UK pioneered it in their now totally shut down coal plants and Australia is now implementing it.
exabrial•8mo ago
uh... yeah, so, back to burning 1/2kg per kw/h?
ashoeafoot•8mo ago
Germany is old, and paying its pensions from however the taxed economy is currently running. And its addicted economically to russian gas. The piggybank is spent, the "make belief can come true by the power of surplus money" philosophy ran out of steam as idealistic projects have to be payed for by holding back on the pensioner feeding trough. The generation that bend it all to their will finally ran out.
rasz•8mo ago
> negative prices for _every_ day during peak

What was the price at midnight? Afaik there were days last year when Germany peaked at 1000 EUR/MWh at night.

natmaka•8mo ago
Germany sets the tone in Europe (at least financially) and used to refuse to pay for nuclear power which (since Fukushima) it does not want at home and which, deployed in other nearby nations, exposes it to risk.

I suspect a trade/swap: Germany will obtain something from France in return.

barbazoo•8mo ago
I would say this started after Chernobyl. Long before Fokushima.
natmaka•8mo ago
Indeed, however it was loosing traction to the point of "The phase-out plan was initially delayed in late 2010, when during the chancellorship of centre-right Angela Merkel, the coalition conservative-liberal government decreed a 12-year delay of the schedule". https://en.wikipedia.org/wiki/Nuclear_power_in_Germany#Chang...

Protests weren't as strong as they used to be, and didn't change anything.

Then the Fukushima major nuclear accident happened (march 2011), the population demanded a quick nuclear phase-out, and no subsequent government even only attempted to neglect it ( https://x.com/HannoKlausmeier/status/1784158942823690561 ).

exabrial•8mo ago
The anti-nuclear bullshit needs to stop. Germany got it wrong.

German power generation is some of the dirtiest in the world. In 2024 321g CO2eq/kWh. Right now at the time of posting, literally they're emitting 1/2 a kilogram of C02 for one kilowatt-hour.

Meanwhile France, the country Germany claims is not producing "clean" energy: 2024 27g CO2eq/kWh. Time of posting, 95.7% of their electricity is from nuclear, wind, hydro, solar.

Sources:

* https://www.nowtricity.com/country/france/

* https://www.nowtricity.com/country/germany/

codingbot3000•8mo ago
If you like nuclear, ask yourself the following questions:

- Would you want to raise kids living close to a plant? (with higher likelihood of childhood leukemia etc.)

- Would you want to live close to a nuclear waste processing plant such as Le Hague or Sellafield, with all the incidents?

- Would you want to live close to a nuclear waste disposal site?

- Would you want to pay much more for electricity than would be possible using cheaper sources than nuclear, either directly, or hidden through taxes (as in France)?

- Do you want your country to import uranium from countries such as Russia or Niger, and depend on them?

If you can answer all these questions with a clear yes, continue to promote it. If not, please don't!

preisschild•8mo ago
> - Would you want to raise kids living close to a plant? (with higher likelihood of childhood leukemia etc.)

Those studies are about as credible as links between Autism and vaccines...

> - Would you want to live close to a nuclear waste processing plant such as Le Hague or Sellafield, with all the incidents?

I would not care, there are no negative health benefits.

> - Would you want to live close to a nuclear waste disposal site?

Absolutely. Tax revenue and jobs for the area with no negative effects that you wouldn't have with other construction either.

> - Would you want to pay much more for electricity than would be possible using cheaper sources than nuclear, either directly, or hidden through taxes (as in France)?

You are plainly misinformed, as a matter of fact EDF even had to sell their power at a loss way below market rate to their competitors due to the goverment.

> - Do you want your country to import uranium from countries such as Russia or Niger, and depend on them?

Nice cherry picking when Canada and Australia are even bigger exporters. Sure, why not trade with them.

exabrial•8mo ago
Yes to all because none of those ridiculous premises are true lol.
Timon3•8mo ago
You should look into these things before opining on them. For example, someone else posted this link regarding leukemia rates in children around nuclear power plants: https://www.bfs.de/DE/bfs/wissenschaft-forschung/wirkung-ris...
exabrial•8mo ago
Fascinating, given that I grew up near Burlington, Kansas, I just must be glowing at night?

Come up, stop with the BS. And Stop burning coal.

Timon3•8mo ago
It's a review of multiple studies. They literally say that the radiation can't really be the cause, yet there is the measurable increase in childhood leukemia.

Do you just want to deny reality when it doesn't suit your preconceived notions? Though:

> Fascinating, given that I grew up near Burlington, Kansas, I just must be glowing at night?

doesn't give me much hope you're engaging seriously with this topic.

chickenbig•8mo ago
> - Would you want to pay much more for electricity than would be possible using cheaper sources than nuclear, either directly, or hidden through taxes (as in France)?

As opposed to subsidies of intermittents [0]?

> - Do you want your country to import uranium from countries such as Russia or Niger, and depend on them?

Russia has a large share of enrichment capacity [1], and conversion to HEX [2]. But they don't control the uranium resource, having only an 8% share of the market [3].

[0] https://archive.is/J9s7Z

[1] https://world-nuclear.org/information-library/nuclear-fuel-c...

[2] https://world-nuclear.org/information-library/nuclear-fuel-c...

[3] https://world-nuclear.org/information-library/nuclear-fuel-c...