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Which is a metric having one source throughout all weather, coupled with 2018 battery storage as per the study showcased in the blog.

Not sure what the relevancy is.

Here, a modern article modeling "System LCOE". In other words, the whole grid including transmission backup and everything else. It starts by giving new built nuclear power the benefit of doubt, having it cost 40% less than Flamanville 3 and 70% less than Hinkley Point C. Since no one would ever be stupid enough to greenlight a project like that again.

https://www.sciencedirect.com/science/article/pii/S036054422...

It finds that for Denmark, a country with very low insolation and awful winters that renewables are 53% cheaper than the nuclear system.


Ignoring that the last time Ontario attempted to build nuclear power the utility went into bankruptcy forcing the public to take on an absolutely enormous stranded debt.

In Israel or the ”lebensraum” in Southern Lebanon?

Mythical Gen IV reactors? Without even existing prototypes?

Well. It is not cheap. Each new built large scale reactor needs tens of billions in subsidies. Money which could have multiple times larger effect, in a fraction of the time, if invested in renewables and storage.

But ren also require gas firming expansion(see germany). And Germany spends in ren subsidies about equivalent of 1 failed french nuclear project, each year... to have far worse emissions

Always the laser focus on Germany.

Are you suggesting that Germany would be better off by keeping their current emissions until the mid ~2040s waiting for horrifyingly expensive new built nuclear power to come online?

Who cares if the emergency reserves are fossil gas when we still need to decarbonize agriculture, construction, aviation, industry, maritime shipping and so on?

When those emergency reserve emissions matter on the scale of the entire economy then force them to be zero carbon fuel, if still necessary.

You’re trying to blow up potential what if’s 15 years from now as the end of the world.

Followed by looking backwards. What you are complaining about is that 2010 solar was expensive and still get paid that expensive price.

What’s the relevance when it comes to choosing what the most efficient spending of money is in 2026?


Germany is just a prime example. Germany was better off to not shut down existing plants and invest in ren+nuclear to retire leftover fossils. It's also fascinating to hear the "horrifyingly expensive" statement. Germany spends on EEG equivalent of one failed french nuclear project each year. It also spends the same on transmission to acomodate distributed generation. And also plans to expand gas. Anyone suggesting German path is sane/correct and expanding nuclear is the worst decision ever loves fossils more than nuclear - as simple as that.

"Who cares if the emergency reserves are fossil gas when we still need to decarbonize agriculture, construction, aviation, industry, maritime shipping and so on?" - many.

German EEG/y spending is about to increase because it's paid more frequently despite most expensive contracts being over. And for offshore this already didn't pan out well. Solar has the advantage of lower capex but will be hit too.


Why are you unable to look forward? I see a wall of text complaining about the past.

Again. Are you suggesting that Germany would be better off by keeping their current emissions until the mid ~2040s waiting for horrifyingly expensive new built nuclear power to come online?


I'm complaining that Germany also plans gas expansion into _future_ instead of either refurbing some of existing units for cheap or build new nuclear. Germany doesn't need to wait for it to come online. It needs to keep building ren while building nuclear and erase all fossils infrastructure entirely. No stupid parallel gas/coal firming. Nor cheap green hydrogen pipedreams. France doesn't have parallel gas network so it's possible and should be done.

Ahhh. The magical, ”just restart”, handwaving away all issues.

You do realize that the nuclear lobby group found the easiest reactors to restart were in the north? Which is already constrained by an oversupply of renewables and limited transmission infrastructure.

How will that help?

Also. Why get less decarbonization by wasting money and opportunity on new built nuclear power when we still need to decarbonize construction, agriculture, shipping, showroom, industry?

Do you think we have infinite money?


It's not just restart. It's investing money to restart. The north area still has coal and gas plants so restarting nuclear still makes sense. That's how it'll help.

Also. Why get less decarbonization by wasting money and opportunity on new built nuclear power when we still need to decarbonize construction, agriculture, shipping, showroom, industry? - in this case let's spend zero money on ren deployment too. Electrification will bring much greater results due to efficiency gains even if the grid is powered in it's current form. Such arguments are silly.

Germany does in fact seem to have tons of money. It spent on EEG alone so far double the cost of entire french nuclear fleet. In the meantime it got highest household prices in EU after Ireland. From this year govt decided to funnel additional 6bn/y on transmission. I'm not even talking about tons of fossils subsidies


Exactly? We are removing renewable subsidies all over the world because they aren't needed anymore?

In Germany the recent solar renewable subsidies are lower than market price for their electricity, but it offers longterm stability for the producer which is why they sign up.

This is not driven by subsidies:

> Driven by record solar growth, low-carbon power generation increased by 887 TWh in 2025, outpacing electricity demand growth of 849 TWh. Solar power alone met 75% of the net increase in electricity demand. Together with wind, the two sources met almost all (99%) demand growth. For the first time since the Covid-19 pandemic in 2020, and only the fifth time this century, fossil generation did not rise, recording a small fall of 38 TWh (-0.2%).

https://ember-energy.org/latest-insights/global-electricity-...

Followed by still only being able to look back. Complaining that 2010 solar is expensive. To what relevence you still haven't been able to explain.

You do realize that to decarbonize society, no matter the source, we need to 2-3x our grid size depending on local industry? The transmission uprating is coming no matter the source of electricity.

Again. Are you suggesting that Germany would be better off by keeping their current emissions until the mid ~2040s waiting for horrifyingly expensive new built nuclear power to come online?

Why are you so afraid of renewables and storage?


Removing subsidies? Are you aware that UK increased ren CFDs for latest AR rounds? Are you aware that offshore projects without CFDs are already facing problems? Germany still pays 18bn/y on EEG and the amount is projected to rise due to more frequent payments

Transmission upgrade requirements are far smaller with not so distributed generation. This can be clearly seen in case of Germany vs France. You need vastly more transmission for distributed power put based on fertile weather patterns and even more to reduce curtailment with projects like sudlink

I didn't suggest it to keep current emissions what a nonsense. I've suggested tp expand nuclear in parallel with renewables instead of expanding renewables+gas

Please stop asking this stupid question about being afraid of renewables and storage because that's not the topic of the discussion. German pathway includes gas and the fact you leave this "small" detail makes me think you either don't mind it or you haven't read the proposals of Fraunhofer ISE/Habeck/Reiche


I love that you now deflect to off-shore wind subsidies. Not daring to face onshore wind, solar or storage.

Followed by again complaining about 2010 solar being expensie. To absolutely no ones surprise.

In Australia CSIRO assuming a status quo energy system, i.e. not electrified society, put the extra costs for a renewable Australian grid at ~€12B. That's less than the subsidies a single new built nuclaer reactor requires.

Isn't it funny how entire country scale transmission systems becomes cheap when compared to the subsidies required new built nuclear power?

When means you lock in hundreds of billions of euros in nuclear handouts from tax money which could have vastly larger impact if invested in renewables. You know, opportunity cost.

It is this graph:

https://imgur.com/a/WrLUrwK

It scales from a single reactor to a grid. If you waste money on a reactor which could have vastly larger impact if invested in renewables then you will never catch up to the emissions that could ahve been avoided.

You framing the question as stupid is because it hits too close to home. You truly are afraid of renewables and storage. Is your income dependent on the nuclear industry? Is that the issue?

Again. Who cares if we include an emergency reserve of fossil gas? Don't let perfect be the enemy of good enough, especially not when we need to consider cumulative emissions.

Do you even grasp the concept of cumulative emissions?


And now France target 2038 at the earliest for the first reactor in the EPR2 fleet. With a 11 cent per kWh CFD and interest free loans, summing to over 20 cents per kWh.

It is easy to dream about what could have been half a century ago, but that doesn’t change reality today.


Yes, EPR2 is overcomplicated mess. But the subsidy is not that great either... considering many EU countries are subsidizing biomass today at 18ct/kwh...

Always the false comparisons.

Please do tell me the expected capacity factor of these biomass plants, even if 18 cents per kWh is correct, after renewables, storage, hydro if available and existing nuclear plants with 80 year LTOs do the heavy lifting.

Can you see the difference compared to new built nuclear power which requires that absolutely insane price when running at 100% 24/7 for 40 years?


Why only 40y for new nuclear? When min license is 60 for gen3 and many gen2 already got extensions to 80y. And where did you get the 100% 24/7 number? The min profitability of FLA3 doesnt assume that. And that's for an ultimately failed project which could have been much better if not EDF incompetence

You do realize that trying to smear the costs across almost 100 years is an admission in how horrifyingly expensive new built nuclear power is?

And you do realize that across such a lifespan essentially the entire nuclear plant except the pressure vessel and outer shell is replaced?

Steam generators, turbines, generators, control systems, piping, valves etc. Everything is replaced. Is that free?

There’s no trouble building renewables with similar lifespans. It is just not done because predicting profitability until the 2100 is absolute lunacy.


It's an admission that the plant can operate for a long time

"do realize that across such a lifespan essentially the entire nuclear plant except the pressure vessel and outer shell is replaced?" - so you are saying that EDF replaced/will replace all the components except PV of it's plants to reach 60-80y? This sounds ridiculous. Maintenance isn't free but is part of opex of a plant which for existing ones is rather low.


No. It is trying to reframe the cost question in a way that laymen don’t understand.

For anyone understanding economics it’s an admission of how far you need to twist the numbers to just make it horrifyingly expensive.

The OPEX calculated in for example Lazard is not including all replacements and maintenance needed for LTO.

Why are you so afraid of renewables and storage?


I'm not afraid of renewables. I encourage building them. I do also realize, that if sufficient nuclear isn't built, gas will be used for firming (or coal in case of China). That's literally what's happening in Germany. Denmark managed to avoid it by relying on nordics which already got pissed and by burning literal wood from America and marking it as renewable.

Lazard doesn't (or at least didn't) estimate the plants to work for 60y either considering all gen 3 are licensed for this period. Lazard also has interesting numbers about LCOE of ren+cheap gas firming. Would be interesting to see the added cost of transmission, considering Germany spends 10x more than France per year on it


You do realize that nuclear power and renewables fundamentally compete for the same slice of the market: The cheapest and most inflexible.

Due to renewables having zero fuel cost they win this handily. Which now also extends to when storage from either wind or solar delivers.

Which is what we see in action:

From night to noon: France’s reactors are now bending for European solar

https://www.pv-magazine.com/2026/05/14/from-night-to-noon-fr...

EDF is already crying about renewables cratering the earning potential and increasing maintenance costs for the existing french nuclear fleet. Let alone the horrifyingly expensive new builds.

And that is France which has been actively shielding its inflexible aging nuclear fleet from renewable competition, and it still leaks in on pure economics.

https://www.bloomberg.com/news/articles/2026-02-16/edf-warns...

They do. They have a diamond which is Vogtle with a 97% capacity factor and 70 year economic lifespan. Still leading to horrifyingly expensive electricity.

Like I said. It is an admission in how far you need to tilt the numbers to still get it to be horrifyingly expensive.

We have studies like that. But I know people like you desperately try to dismiss them.

Here, a modern article modeling "System LCOE". In other words, the whole grid including transmission backup and everything else.

It starts by giving new built nuclear power the benefit of doubt, having it cost 40% less than Flamanville 3 and 70% less than Hinkley Point C. Since no one would ever be stupid enough to greenlight a project like that again.

https://www.sciencedirect.com/science/article/pii/S036054422...

It finds that for Denmark, a country with very low insolation and awful winters that renewablws are 53% cheaper than the nuclear system.


No, they don't compete for the same slice of the market, that's silly

Nuclear is more flexible than coal and on par with some gas plants. BWR's are even faster. Your second link about french modulation proves that. Or you can check directly on RTE website

EDF is crying because ren get CFD's and curtailment payments while EDF does not.

The paper you posted is so funny. The author is also the chief editor of the journal the paper was published. He is also one of the founders of DK antinuclear movement which resulted in DK becoming one of the largest coal consumers at that time. His previous paper was subject to correction due to favorably "omitted details". His current paper still assumes for some reason dirt cheap hydrogen firming for renewables. Shall we check the cost of pure H2 firming per Lazard?

Not only DK has worse emissions than France - it also managed to piss off Norway and Sweden https://montelnews.com/news/0138d712-3afd-4590-883e-4b9221fd...

https://www.reuters.com/business/energy/sweden-pauses-plans-...


And what happens to a nuclear plant that is essentially only fixed costs when their capacity factor craters due to renewable competition?

Followed by attacking the author rather than the context, followed by a "what about".

You truly lost the plot here. You do realize that right?

Why are you so afraid of renewables and storage?


It happens the same as with any other project, even renewables.

It's not an attack on the author. What I've written can be easily verified. The author IS the chief editor of the journal the paper was published in. The author is one of the founding members of DK antinuclear movement. His previous paper was subject to correction due to details that were omitted which skewed the final results. The paper does assume dirt cheap H2 firming which is not bounded to reality in any sense whatsoever. Nuclear ban in DK DID led to it becoming one of the largest coal consumers at that time.

You don't need to ask this stupid question at each post. It'll not change the simple fact that DK and DE have far worse emissions than France and Sweden. It'll not change the fact Germany plans gas expansion for firming renewables.

Maybe I should ask you the question why are you so afraid of nuclear combined with renewables when history proved this pathway gives the best results? I can't think of anything more than blind hate


You mean like this Australian coal plant forced to become a peaker or be decomissioned?

https://www.abc.net.au/news/2024-10-13/australian-coal-plant...

Yes. That is the issue. How do you suggest the nuclear plants will survive in such an environment when they are already today, early in the renewable disruption, facing headwinds?

Then more just attacking the author. Then trying to discredit this paper by an old one, and you clearly haven't read the criticism.

The criticism said:

1. Assuming new built nuclear power is cheap and fast to build then you are wrong!!!!

But you never read further than the headline did you?

Then you go on to mindless complaining. Yes, it would have been amazing if Denmark and Germany built nuclear power half a century ago and decarbonized their grids.

But we live in 2026 and there's no point crying over spilled milk.

> nuclear combined with renewables when history proved this pathway gives the best results?

Which is revionist history. As shown by the French nuclear plants struggling to cope with an increasingly renewable grid. Same with the Swedish ones where 4 reactors has shut down due to market conditions in recent years. They were hemorrhaging money.

You are looking at an incredibly short period of time where half a century old paid off plants are still around and renewables haven't completely disrupted the French grid yet.

Please do explain how you would fit a nuclear plant into this grid mix:

https://explore.openelectricity.org.au/energy/sa1/?range=7d&...

That is where all grids globally are headed in less than 10 years time. Before a single nuclear projected started today is completed.

Why are you so afraid of renewables and storage? Is your income dependent on the nuclear industry?


Now Ontario wants to double the electricity bills to finance its nuclear refurbs and new builds.

https://reneweconomy.com.au/ontario-utility-wants-to-double-...


Ontario's Financial Accountability Office, which reports to provincial parliament and is independent of the government, concluded that at least for the refurbs:

> * The FAO estimates that the Plan will result in nuclear generation supplying a significant proportion of Ontario electricity demand from 2016 to 2064 at an average price of $80.7/MWh in 2017 dollars. (For reference, the 2017 Nuclear Price is $69/MWh and the current price of electricity for most residential and small business ratepayers is $114.9/MWh.)

> * The Nuclear Price will be higher than the average price of $80.7/MWh during the majority of the time that the reactors are being refurbished from 2016 to 2033. Post refurbishment, ratepayers will benefit from a lower than average Nuclear Price.

> * Overall, despite near-term Nuclear Price increases, the Plan is projected to provide ratepayers with a long-term supply of relatively low-cost, low emissions electricity.

> * OPG will realize a financial return from the operation of the DNGS and PNGS. OPG is owned by the Province and any return would improve the Province’s fiscal position. There is no significant fiscal impact to the Province from the refurbishment of reactors at the BNGS as it is operated by Bruce Power, a private sector organization.

* https://fao-on.org/wp-content/uploads/2024/08/Nuclear-Refurb...

I was not able to find a similar report (pro or con) for new build, though I think the current plan with some SMRs in Ontario is dumb: if we decide on more nuclear, we should stick with big(ger) CANDU, as there's little point in small reactors in a large grid like Ontario.

Renewable programs have also cost Ontario ratepayers quite a bit of money, for not a lot of electricity generated:

* https://ospe.on.ca/advocacy/green-energy-contracts-fao-repor...


Last time Ontario built CANDU’s the utility went into bankruptcy and the taxpayers still haven’t paid off that debt.

Ontario Hydro did not go bankrupt.

It was broken up into "constituent" components in 1998, and the a lot of the nuclear plant construction financing debt didn't fit neatly into any one of them, so a separate legal entity was created: Ontario Electricity Financial Corporation (OEFC).

Ratepayers pay their electrical bills, the money goes to local utilities and entities like OPG and Hydro One, which in turn pay OEFC.

The claim that it was bankrupt was a line used by Mike Harris et co to justify privatization.


It was a government owned utility, it couldn’t go bankrupt in the traditional sense since it has taxpayer backing.

But its finances were completely underwater with no way out due to the debt from nuclear construction.

After the breakup the public were left with $38B in debt from nuclear construction. Which the subsequent nuclear company was unable to pay off, or it would of course not have been restructured.


> But its finances were completely underwater with no way out due to the debt from nuclear construction.

The debt from nuclear construction was being paid off then, just like it is being paid off right now: OEFC holds the debt and has revenue to pay it off. An article from someone who is not a fan of nuclear, but is also not a fan of Harris's non-sense:

> Harris claimed Hydro was so badly in debt as to be bankrupt. This claim was proven false by the final Ontario Hydro financial report in March of 1999 which showed that $1 billion of Hydro’s debt had been paid down and was on track to be paid off in 20 years. At the time critics said: “wouldn’t we all like to have a 20-year mortgage on our home because then you have an asset that serves you well!”

* https://rabble.ca/environment/the-nuclear-power-lie/


That’s an extremely rosy picture not aligned with reality.

You can’t compare it with a house mortgage.

They had X in earning potential in a set time frame.

The debt accumulated was X + Y.

After the restructuring the public were left as bagholders of the ”+ Y” since it would be impossible to pay it off reasonably under the current framework.

A new framework was created where this stranded debt was paid off as a forced separate line item on everyone’s bills.

In other words. They were bankrupt, if the state hadn’t stepped in then they would not have been able to amortize the debt in the expected timeframe.


> That’s an extremely rosy picture not aligned with reality.

"Chart 1- History of Residual Stranded Debt & Unfunded Liability of OEFC" seems to show a decreasing number:

* https://www.breckenhill.com/blogg.php

There is of course a lot of political history (OPC, LPC, etc) that makes the whole situation messy.

> A new framework was created where this stranded debt was paid off as a forced separate line item on everyone’s bills.

The Debt Retirement Charge was $0.007 or 0.7¢ per kWh.


Why are you this entire time avoiding official sources? Is it because you know the narrative you push is revionist history?

https://www.auditor.on.ca/en/content/annualreports/arreports...

A near 1 cent per kWh levy on every single kWh produced, across all sources, is a massive expense.

And that is after the maximum possible had already been extracted from the market.

Why are you so afraid of admitting that the nuclear construction in Ontario was an absolute economic shit show?


Vastly slower. China is on one hand building enough renewables to soak up the entire grid expansion and displace fossil fuels.

On the other hand their nuclear share is declining. It peaked at 4.7% in 2021 and is today down to 4.3%. Entirely irrelevant.

For each plan they put out they lower their nuclear targets and push them further into the future.

Going from a French like buildout 10-15 years ago to having it as a token investment today.


Meaning the solution for cheap nuclear power is cheating a corruption.

https://www.technologyreview.com/2019/04/22/136020/how-greed...


The article is quite full of the classic nuclear fear mongering. Like:

"Most significant was the decision to abandon adding an extra wall in the reactor containment building—a feature designed to increase protection against radiation in the event of an accident."

Most reactors currently in operation have a single wall containment building. The EPR has double layer containment, but the new EPR2 reactor will have single-wall prestressed concrete containment structure with a metal liner.

https://en.wikipedia.org/wiki/EPR_(nuclear_reactor)#EPR2_des...

Also Korea’s nuclear industry as pretty far from decline:

https://www.world-nuclear-news.org/articles/khnp-sets-out-pl...

https://www.world-nuclear-news.org/articles/sites-selected-f...


The real benefit is being able to use a cheaper, but good enough, model with a specific system prompt dedicated to that task.

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