natmaka

24 ms·

271.
by natmaka 2y ago
Current uranium reserves are sufficient, under current obtention conditions, for slightly over 130 years of supply. Nuclear now produces, worldwide, less than 10% of electricity (which is less than 2.2% of total final energy). Double the re
272.
by natmaka 2y ago
I cannot read German, Google Translated it, and could have misunderstood but could not find how those waste sites may trigger such major accident, nor about untreatable waste and one of them stores nuclear waste ("from the Greifswald n
273.
by natmaka 2y ago
I may be wrong, but 2024 isn't yet a full year. Moreover FR/DE isn't the main path anymore, and as DE sometimes plays as a gateway we have to take the complete balance into account.
274.
by natmaka 2y ago
> phenix and superphenix were closed mainly for political reasons Phénix is not pertinent, it worked perfectly but was a research reactor (small, expensive...). Superphenix never reached the industrial stage, even the enterprise exploiti
275.
by natmaka 2y ago
> unit 4 proved there's positive learning curve Unit 4 proved that work units in a given project, sharing the same lapse of time and space, can benefit. Extrapolating it to a whole set of projects is another matter (see the referenc
276.
by natmaka 2y ago
> stockpiled Doing so may trigger a market tension. France reprocesses only part of its fuel, and only 1 time. > the problem will be the same Uh? An existing fleet of reactors is moot without uranium. An existing fleet of renewables j
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by natmaka 2y ago
Please source.
278.
by natmaka 2y ago
A key difference is that an evacuation triggered by a major nuclear accident could have been avoided (typically: by building renewables instead of a nuclear plant). > Was the evacuation poorly executed in Japan? This is a matter of debat
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by natmaka 2y ago
> you sure it neglects vogtle? No, your "Advanced Nuclear - Pathways to Commercial Liftoff" plays the usual "we benefit from failures because we learn" card, and concludes with promises "The next AP1000s would al
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by natmaka 2y ago
> It's not clear that this is a specifically nuclear issue An evacuation triggered by a nuclear major accident seems specific to nuclear to me, in the sense: if, instead of this nuclear plant, some field occupied by wind turbines or
281.
by natmaka 2y ago
Indeed, in more than one way. AFAIK in theory the people knows what is good for itself, and therefore making voters happy is governing well. ObQuote: https://winstonchurchill.org/resources/quotes/the-worst-form...
282.
by natmaka 2y ago
Uh? 2023 (last full year): 9.34 / 8.92 Source: https://energy-charts.info/charts/import_export/chart.htm?l=...
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by natmaka 2y ago
Phenix was not industrial (250 MWe) but a research reactor. Superphenix was an attempt to haul it to industrial scale and it failed to do so, just as every other similar project. Russia BN-600 is obsolete and was so leaky (sodium!) is isn&
284.
by natmaka 2y ago
'Advanced nuclear' neglects the last developments (the Vogtle nuclear plant project hugely over-budget and late https://en.wikipedia.org/wiki/Vogtle_Electric_Generating_Pla... , cancelled plans (Montagorda, V
285.
by natmaka 2y ago
It's not about energy density but availability. If a nation cannot buy uranium (scarce resources, embargo...) it loses at least temporarily its nuclear infrastructure (and gasps for energy). This is not a real concern for renewables.
286.
by natmaka 2y ago
... Japan: no real nuclear 'restart', less and less fossil fuel, more and more renewables: https://ourworldindata.org/grapher/electricity-fossil-renewa...
287.
by natmaka 2y ago
> nuclear is not much more expensive, it's cheaper Production costs: renewables are way cheaper than nuclear ( https://www.lazard.com/media/xemfey0k/lazards-lcoeplus-june-... ) and this is not a new trend:
288.
by natmaka 2y ago
Most blades are now burnt in cement killns. Burying them is forbidden in most (maybe even all, now) Western nations. Recyclable blades have recently become available (RecyclableBlade, ZEBRA, PECAN...), and there are even new ways to cope w
289.
by natmaka 2y ago
Indeed, officially the casks conceived during the 1980's are OK, however in 2011 the MIT discovered that "Cracking related to corrosion could occur in 30 years or less, and the Nuclear Regulatory Commission is studying whether the
290.
by natmaka 2y ago
Moreover many materials used in 'renewables' equipment (wind turbines...) are eternally (at human scale) recyclable. This reduces the need for mining. Uranium has to be mined.
291.
by natmaka 2y ago
> need for batteries They are needed for transportation, whatever the way we produce electricity (even with nuclear). > renewables can’t be used in various industrial processes Why? There is no difference between nuclear-produced elec
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by natmaka 2y ago
> reused with fast reactors Please name an industrial ready-to-deploy fast reactor. AFAIK there it doesn't exist, therefore its (after decades of expensive R&D in many nations) just a vague hope, not a potential part of the sol
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by natmaka 2y ago
Nearly each and every nation imports and exports, in order to optimize (better import low-cost or low-emission electricity than locally generate it thanks to some expensive and dirty plant). The yearly balance (imports - exports) is key.
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by natmaka 2y ago
Texas, albeit culturally/politically swimming in fossil fuel, pushes hard towards renewables: https://comptroller.texas.gov/economy/fiscal-notes/infrastru...
295.
by natmaka 2y ago
Naoto Kan was an advocate of nuclear energy, changed his mind after Fukushima, and the industry now tries hard to use him as a scapegoat. Don't worry, experts are perfectly able to maintain a high level of safety (nope), then to assess
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by natmaka 2y ago
Indeed, and even more. French experts stated it clearly: 1/ 'Cour des comptes' (France's supreme audit institution) established the cost of the nuclear fleet at approximately 228 billion € (2012 Report "Les coûts de
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by natmaka 2y ago
Obtaining the amount of victims of an evacuation is difficult, and official figures are conservative for many reasons, the main one being that each victim's family obtained financial reparation (see also the "Limitations" sec
298.
by natmaka 2y ago
> 0.45% of the nuclear waste Do you mean that the Fukushima nuclear accident dumped locally in a few days 0.45% of all dumped nuclear waste during the last ~80 years?"? If so it seems non-negligible to me. > 20 years earlier (not
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by natmaka 2y ago
> The failure was humans Isn't it always true, for such matters? As we cannot avoid committing errors it seems better to prefer a way without any risk of major accident (very dangerous radioactive things, difficult to cleanup, trave
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by natmaka 2y ago
Indeed: if cheap (for the consumer, not for the taxpayer...) nuclear electricity was sufficient France industry would thrive. Reality: it (sadly) is dying.

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