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Re:Nuclear Power Is the Answer to Global and Environmental E... by otherme123 on Friday April 21, 2023 @05:13PM (#35660262)
By reliability he refers to french nuclear plants stopped for months due to mantainance and repairs (mainly leaks that couldn't be scheduled).

Painting nuclear as a 100% free of problem energy makes people sound as car salesmans. As of today, nobody want to finance or insure them. As soon as you say "ok, build them reactors if they are so perfect", nuclear advocates want the state to jump in and asume the costs, the consumers to pay an extra price, the safety regulations back to 1960 and the future people to deal with the residues.

Re:Nuclear Power Is the Answer to Global and Environmental E... by formerly_proven on Friday April 21, 2023 @06:14PM (#35660952)
> the consumers to pay an extra price

The (botched) green energy transformation has given the country I live in top 3 highest electricity prices in the world and it's not even particularly green at all. Literally cannot get worse. And it seems to me that one half doesn't understand how incredibly bad high energy prices are both for people and industry, while the other half cheers at the prices because it causes deindustrialization and pushes towards degrowth - mainstream talking points of the current generation of climate activists here.

Re:Nuclear Power Is the Answer to Global and Environmental E... by reso on Friday April 21, 2023 @06:33PM (#35661149)
Then it would make sense to build solar—-not nuclear—- as it is much cheaper in 2023.
Re:Nuclear Power Is the Answer to Global and Environmental E... by artemonster on Friday April 21, 2023 @06:20PM (#35660999)
Germany?
Re:Nuclear Power Is the Answer to Global and Environmental E... by TheLoafOfBread on Saturday April 22, 2023 @02:28AM (#35663940)
Could be Denmark too.
Re:Nuclear Power Is the Answer to Global and Environmental E... by Gelenoto on Saturday April 22, 2023 @02:22AM (#35663913)
If you talk about Germany than this has nothing to do with nuclear.
Re:Nuclear Power Is the Answer to Global and Environmental E... by Gud on Saturday April 22, 2023 @11:52AM (#35667792)
No, this has everything to do with nuclear(and energy politics in general). Since at least the 80s, nuclear power has carried a huge political risk in Northern Europe including Germany. Reactors have been shut down prematurely - instead coal and oil power plants have been kept operational.
Re:Nuclear Power Is the Answer to Global and Environmental E... by Ringz on Monday April 24, 2023 @03:14AM (#35684538)
Do you have a source for these claims? A peer-reviewed study would be best? All statistics of the last years indicate that Germany has replaced reactor capacity with renewables. And at the same time, it has cut back on coal. The current negative development has to do with the war and the gas supply stop and not with the dismantling of nuclear power plants.
Re:Nuclear Power Is the Answer to Global and Environmental E... by tmp20230324 on Monday April 24, 2023 @10:13AM (#35687923)
If you are going to ask for a source, would you mind providing sources for your assertions as well? As an outsider, I would be interested in seeing numbers/evidence for both view points. (Although looking at the parent comment, I'm not exactly sure what you would like a peer-reviewed study of.)

Also, would you please not copy-and-paste the same response multiple times as you've done in the thread? It comes across less as thoughtful discussion and more as spam. (I'm not trying to be rude, but that's how it came across to me.)

Re:Nuclear Power Is the Answer to Global and Environmental E... by eftychis on Sunday April 23, 2023 @01:30PM (#35678392)
I will agree with the sibling comment -- as an anecdotal opinion I guess. It has everything to do with nuclear.

Since a few days ago, Germany's policy to reduce or keep energy prices and meet demand depends inextricably to France's building more nuclear reactors. (I am talking about the last industrial nuclear reactors going offline, and the future energy budget planning related to that.)

Re:Nuclear Power Is the Answer to Global and Environmental E... by Ringz on Monday April 24, 2023 @03:13AM (#35684530)
Do you have a source for these claims? A peer-reviewed study would be best? All statistics of the last years show that Germany has replaced reactor capacity with renewables. And at the same time it has cut back on coal. The current negative development has to do with the war and the gas supply stop and not with the dismantling of nuclear power plants.
Re:Nuclear Power Is the Answer to Global and Environmental E... by cyberax on Friday April 21, 2023 @06:26PM (#35661055)
> By reliability he refers to french nuclear plants stopped for months due to mantainance and repairs (mainly leaks that couldn't be scheduled).

That's not quite correct. France deferred maintenance during COVID and scheduled the downtime in advance. The inspections then found potential problems, so other reactors did additional maintenance and checks.

They could have been deferred further if needed, but politicians were not willing to make the call.

> Painting nuclear as a 100% free of problem energy makes people sound as car salesmans.

Nuclear energy is the one that is actually proven to work and be reliable enough to completely displace fossil generation. Nothing else is coming close to that, including solar and wind.

> As of today, nobody want to finance or insure them.

Russia is busy exporting nuclear power plants. A nuclear reactor can be built within 6 years, two reactors within ~9 years (they're built in parallel).

Re:Nuclear Power Is the Answer to Global and Environmental E... by formerly_proven on Friday April 21, 2023 @06:32PM (#35661128)
Nuclear is not really suitable for load-following, at least not the installed capacity. Some are technically capable but load-following seems to be quite taxing on the equipment due to pressure and temperature cycling.

However it is very suitable for base load generation, there's a reason why oil and coal companies lost their marbles in the 50s and astroturfed anti-nuclear into existence.

I'm not sure if that's their most-effective campaign ever or if it's a tie with BP's popularization of the carbon footprint, which atomizes responsibility for climate change and has successfully delayed systematic action for decades. And even managed to get greens and climate change activists to do their work for them. Just like with nuclear. It's actually, genuinely incredible.

Re:Nuclear Power Is the Answer to Global and Environmental E... by cyberax on Friday April 21, 2023 @06:40PM (#35661218)
> Nuclear is not really suitable for load-following, at least not the installed capacity.

That's not quite the case. You can load-follow with nuclear, but it requires reactors to be designed for that. France does this, for example.

You also can simply keep reactors working at a constant level and just dump excess power into their cooling system. This is not as bad as it sounds, because fuel is just about ~5% of the total cost of the produced nuclear energy.

Most nuclear power plants do not do this because they don't need to do it.

Re:Nuclear Power Is the Answer to Global and Environmental E... by pydry on Friday April 21, 2023 @07:08PM (#35661458)
>This is not as bad as it sounds, because fuel is just about ~5% of the total cost of the produced nuclear energy.

Therein lies the problem. Capital costs dominate nuclear plant costs and they are high.

If you load followed such that you kept the reactor at an average of, say, 50% nameplate capacity that would lead to a levelized cost per MWh of about $220.

For reference, Bhadla solar park sells a MWh for roughly $3.

Re:Nuclear Power Is the Answer to Global and Environmental E... by cyberax on Friday April 21, 2023 @07:18PM (#35661539)
I question your estimation of the capital cost. LCOE for most nuclear power plants is way below that: https://www.oecd-nea.org/lcoe/

For the US it's $33 per MWh, so doubling it still gives reasonable cost.

As for wind, it simply can not compete right now for guaranteed capacity. The adequacy rating for most wind power plants is around 10%, so you need 10x overbuild to even compete.

Re:Nuclear Power Is the Answer to Global and Environmental E... by pfdietz on Friday April 21, 2023 @07:31PM (#35661618)
Many of the entries in that table (LTO) are for 20 year life extensiom of existing plants, not new plants.
Re:Nuclear Power Is the Answer to Global and Environmental E... by cyberax on Friday April 21, 2023 @08:09PM (#35661900)
And so what? Modern nuclear reactors are licensed for 60 years and are expected to last 80-100 years with maintenance (reactor vessel annealing, mainly).

This is exactly a point in favor of nuclear.

Re:Nuclear Power Is the Answer to Global and Environmental E... by btreecat on Saturday April 22, 2023 @12:50AM (#35663431)
So where's the "solar spills" or "wind contamination?"

One of these solutions is encumbered by problems of safety, the other capacity. It's easier to scale up capacity than it is to scale safety.

If I had to make long term bets, radioactive materials will continue to be radioactive, green capture, storage and transmission will get cheaper and more reliable.

Speaking of transmission, that's another huge problem. You can't go plopping powerplants just anywhere, and power generation needs to be somewhat close to those consuming it.

Distributed collection and storage helps reduce challenges around transmission infrastructure in low density or hard to travel areas.

Consider Puerto Rico, their investments in solar have skyrocketed, especially with the need to rebuild so much infrastructure. They had nuclear, and they were cleaning up contamination for decades after shutting it down. Also part of the issue with power there is transmission. You don't get the efficiency out of tiny boilers to make them cost effective for these folks.

I think you're pushing a bit hard for a tech that has a lot of problems and while it could play a role in our future, it's unlikely to be a dominant force.

Re:Nuclear Power Is the Answer to Global and Environmental E... by cyberax on Saturday April 22, 2023 @10:00PM (#35672658)
> So where's the "solar spills" or "wind contamination?"

At the factories that produce silicon and composites for the windblades.

> One of these solutions is encumbered by problems of safety, the other capacity. It's easier to scale up capacity than it is to scale safety.

So far, no large country has managed to move to 100% carbon-free renewable generation. And I'm not seeing this changing.

> Distributed collection and storage helps reduce challenges around transmission infrastructure in low density or hard to travel areas.

If we're talking about Europe, they are facing the problem of Dunkelflaute - long periods of no wind, no sun, and low temperatures in the middle of the winter. A worst-case once-in-century scenario would require around a _month_ of storage.

So far no technology is even close to that.

Re:Nuclear Power Is the Answer to Global and Environmental E... by btreecat on Tuesday April 25, 2023 @07:46AM (#35699143)
> At the factories that produce silicon and composites for the windblades.

And if we compared these factories and their environmental impacts we would see a net increase from the production of solar and wind products? That's the point, and you ducked it hard.

> So far, no large country has managed to move to 100% carbon-free renewable generation. And I'm not seeing this changing.

Who said that we had to hit 100%? There is a place for burning stuff for fuels in our society for long to come, the point is not having it the default way we power larger systems.

> If we're talking about Europe, they are facing the problem of Dunkelflaute - long periods of no wind, no sun, and low temperatures in the middle of the winter. A worst-case once-in-century scenario would require around a _month_ of storage.

> So far no technology is even close to that.

Okay, that's a great argument to not continue investing in storage solutions, but let's be real, a new nuclear steam turbine isn't coming online _tomorrow_ either.

Let's do both, and not pretend like the more risky one is less dangerous than it is, when things go wrong.

Re:Nuclear Power Is the Answer to Global and Environmental E... by pfdietz on Tuesday April 25, 2023 @10:12AM (#35700756)
Dunkelflaute can be dealt with by burning hydrogen, not fossil fuels. You need backup turbines, but a simple cycle combustion turbine power plant is about 20x as cheap to build as a nuclear power plant, per unit of power output. So backing up the entire grid with these "Dunkelflaute turbines" is not expensive compared to the nuclear solution.

Europe has many petawatt hours of potential hydrogen storage capacity in its salt formations.

Re:Nuclear Power Is the Answer to Global and Environmental E... by pydry on Saturday April 22, 2023 @05:11AM (#35664677)
France's are struggling to last 60.

Extending their lives to 100 will not only raise maintenance costs even further it will raise the risk of catastrophe quite significantly.

This would be a catastrophe for which e.g. American plants are insured only up to the level of 0.05% of 1 Fukushima level event.

Re:Nuclear Power Is the Answer to Global and Environmental E... by cyberax on Saturday April 22, 2023 @10:02PM (#35672668)
You know that material science has improved a lot since 1970-s when most of French nuclear reactors were designed, right?

In particular, annealing had been developed fairly recently: https://www.neimagazine.com/features/featurerenewal-by-annea...

Re:Nuclear Power Is the Answer to Global and Environmental E... by pfdietz on Saturday April 22, 2023 @07:20AM (#35665378)
If we are trying to determibe the cost of power from new nuclear plants, looking at the marginal cost of upgrading/refurbishing existing plants makes no sense, as that is much cheaper.
Re:Nuclear Power Is the Answer to Global and Environmental E... by locallost on Saturday April 22, 2023 @01:02AM (#35663481)
It's been proven to work and the only able to displace fossil fuels, yet it's existed for 70 years and not even reduced the amount of fossil fuels used in electricity production. Renewables have been pushed for 20 years and have started to accelerate only 10 years ago, yet they are already displacing fossil fuels in many countries.
Re:Nuclear Power Is the Answer to Global and Environmental E... by TheLoafOfBread on Saturday April 22, 2023 @02:30AM (#35663946)
Displacing? I see increasing use of fossil fuels to backup up renewables.
Re:Nuclear Power Is the Answer to Global and Environmental E... by locallost on Saturday April 22, 2023 @02:36AM (#35663965)
Check numbers for Germany, Denmark, Scotland, Portugal etc.
Re:Nuclear Power Is the Answer to Global and Environmental E... by TheLoafOfBread on Saturday April 22, 2023 @07:23AM (#35665395)
Yep, coal goes up.
Re:Nuclear Power Is the Answer to Global and Environmental E... by locallost on Saturday April 22, 2023 @09:02AM (#35666218)
Maybe you're reading the data upside down. Take care.
Re:Nuclear Power Is the Answer to Global and Environmental E... by TheLoafOfBread on Saturday April 22, 2023 @09:25AM (#35666393)
Still goes up. Does not matter how much you are trying to gaslight me

https://www.reuters.com/markets/commodities/energy-crisis-fu...

Re:Nuclear Power Is the Answer to Global and Environmental E... by locallost on Saturday April 22, 2023 @11:28AM (#35667536)
I don't want you to feel gaslighted, but you are objectively very lazy and have an opinion without checking any data. This Reuters article doesn't deal with it, but with a short term situation in the summer. You probably didn't even read past the headline. If you had, you probably would've noticed this quote: "Since Destatis started compiling statistics in 1990, 2022 will likely be the first that Germany will be a net exporter of electricity to France, not the other way round, it said.". Thus it's easy to figure out the uptick in coal in the summer of last year in Germany has very much to do with the fact that half of France's nuclear plants were offline at that point, half of those because of unplanned maintenance. The dirty coal uptick was used to keep the lights on in France. Oops.

Here is the official data for Germany for every year in the past several decades https://www.umweltbundesamt.de/sites/default/files/medien/38...

The bottom three are:

black coal in magenta

nuclear in gray

brown coal in brown

Nuclear shutdowns started in Germany in 2011. It should be easy to see that coal went down significantly since then and is at a historic low. Which brings me back to my original point:

Renewables have been pushed for 20 years and have started to accelerate only 10 years ago, yet they are already displacing fossil fuels in many countries.

Re:Nuclear Power Is the Answer to Global and Environmental E... by TheLoafOfBread on Saturday April 22, 2023 @05:42PM (#35671184)
And then we will look into Germany's CO2 per kWh and it is one of the dirtiest in Europe. That's probably because they have so much renewables. Or so little.

I might be lazy, but you are outright dishonest.

Re:Nuclear Power Is the Answer to Global and Environmental E... by runarberg on Saturday April 22, 2023 @10:55PM (#35672914)
So carbon intensity per kWh of electricity:

https://ourworldindata.org/grapher/carbon-intensity-electric...

Germany went up last two years, but have otherwise been on a steady decline along with the rest of the continent. In 2011 Germany was at 473 g CO2 per kWh of electricity. In 2022 this was down to 386 g CO2/kWh but went down to 333 g CO2 / kWh in 2020.

I will leave it to you to figure out if there was any world event going on in 2020 which would have made it particularly low (i.e. allowed renewables to take up a greater portion of the electricity production), as well as in 2022 which could make it particularly high.

Re:Nuclear Power Is the Answer to Global and Environmental E... by locallost on Sunday April 23, 2023 @01:36AM (#35673583)
Your claim was that coal use is going up. Are you finally giving up that claim?

CO2 per kWh is also going down as renewables went up. Also easy to check in the data. You haven't done that either.

Re:Nuclear Power Is the Answer to Global and Environmental E... by runarberg on Saturday April 22, 2023 @11:33AM (#35667576)
Using this news source to claim that coal consumption is going up reminds me of climate deniers who point to one climate graph from one region in Canada and show the temperature was actually cooling down, while not mentioning that the slice they showed was from March 1997 to October 2005, while the whole graph (including parts they hid) was from 1960 to 2020 and showed massive heating.

From your news source:

> "Only in Germany, with 10 gigawatts (GW), is the reversal at a significant scale. This has increased coal power generation in the European Union, which is expected to remain at these higher levels for some time," the IEA's annual coal market report said.

So your news source only mentions Germany, and only during an energy crisis caused be a war. If you only look at this one country, and only from February 2022 to April 2023 you may find coal consumption going up, but if you look over any other period, or include any other European country, you will see the opposite effect.