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Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

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Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#111

Earlier quoted context omitted.

And here we can see how their electricity generation has fallen https://energy-charts.info/charts/energy/chart.htm?l=en&c=DE...

And in France: https://energy-charts.info/charts/energy/chart.htm?l=en&c=FR... Note that France has lost more nuclear generation than Germany over this period.

Good news; France’s nuclear output is forecast to bounce back to the 340-365TWh range this year.

https://www.edf.fr/en/the-edf-group/dedicated-sections/journ...

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#112
post #77
post #75

Earlier quoted context omitted.

Where are all those rolling blackouts we've been promised by the fearmongering of the nuclear-astroturf? Weird eh? Maybe it's not always clever to use US-logic on the rest of the world. Germany is not Texas.

Texas, where new nuclear has been dead in the water for years. > “The cost of new nuclear is prohibitive for us to be investing in,” says Crane. Exelon considered building two new reactors in Texas in 2005, he says, when gas prices were $8/MMBtu and were projected to rise to $13/MMBtu. At that price, the project would have been viable with a CO2 tax of $25 per ton. “We’re sitting here trading 2019 gas at $2.90 per MM…

The point is it’s not the technology that is the issue in Texas - it’s unhinged turbo capitalism

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#113
post #2

> “With the goal of completing the decommissioning in 30 to 40 years [...]" Can't decide if it's a success of nuclear or a failure. Leaning towards success: - ~900 tons of super duper radioactive material is more or less safely sitting in steel enclosures - we're (as a global civilization) slowly but surely figuring out how to move the hazardous waste to a safer storage, and it may only (ahem) take a couple generatio…

The "super duper radioactive material" you're so afraid of is what's left of the fuel. It's full of energy. The precious fuel is so full of energy that it gets hot ("decay heat"). Without cooling, it melts. Cooling was lost during the most powerful earthquake ever recorded in Japan, the fourth most powerful earthquake ever recorded anywhere. The "Great East Japan Earthquake" and its tsunami killed 19,759 people. The…

Deaths (nuclear accident): 1 confirmed from radiation (lung cancer, 4 years later), and 2,202 from evacuation. Source: https://en.wikipedia.org/wiki/Fukushima_Daiichi_nuclear_disa...

Long-term effects on health are disputed: http://csrp.jp/wp-content/uploads/2014/09/2013-UNSCEAR-Repor... http://www.fukushima-disaster.de/fileadmin/user_upload/pdf/e... https://apjjf.org/thierry-ribault/4761/article

The nuclear accident cleanup cost is very high ad raising: https://en.wikipedia.org/wiki/Fukushima_nuclear_accident_cle...

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#114
post #66

Earlier quoted context omitted.

To add to your point. Disposal of nuclear waste at sea was common up until 1993. There is still a couple hundred thousand tons of such waste sitting in the ocean right now. In addition, about 214 times as much radioactive material was generated by nuclear testing than the Chernobyl breach. Fukushima wouldn't even come close to the waste that has already been released prior to the 1994 ban on Oceanic dumping.

What is the point ? That we dumped so much crap into the ocean a little more won’t hurt?

And then you have to read about how expensive nuclear is today compared with a few decades ago because of the excesive regulations. Regulations that pro-nuclear usually want to relax, to make nuclear more economically viable.

No wonder that dumping nuclear waste to river and oceans is cheaper than having to safely store it for at least a couple of centuries.

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#115
post #66

Earlier quoted context omitted.

To add to your point. Disposal of nuclear waste at sea was common up until 1993. There is still a couple hundred thousand tons of such waste sitting in the ocean right now. In addition, about 214 times as much radioactive material was generated by nuclear testing than the Chernobyl breach. Fukushima wouldn't even come close to the waste that has already been released prior to the 1994 ban on Oceanic dumping.

What is the point ? That we dumped so much crap into the ocean a little more won’t hurt?

Indeed, it can be interpreted as "we didn't knew and made huge mistakes, therefore it seems OK to do so", which seems... let's say 'weird'.

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

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#116
post #68

Earlier quoted context omitted.

Very naive comment. It’s still a lot of money. Are you aware about the current economic and demographic situation in Japan ? It’s not good here. That money could’ve went to a lot more useful things. Also remember this was a man made disaster. The plant was not upgraded (as recommended) to meet new safety guidelines, because, as if a mega tsunami would actually happen, right ? Then right after the event the operator w…

> The plant was not upgraded (as recommended) to meet new safety guidelines, because, as if a mega tsunami would actually happen, right ? And others on this same thread are trying to use the same disaster to paint nuclear as expensive.

The Onagawa nuclear plant, albeit more exposed, resisted thanks to a single man (Yanosuke Hirai), deciding in conscience, and the Big Complicated System of Central Authority "controlling everything" failed miserably at Fukushima.

Full story: https://en.wikipedia.org/wiki/Onagawa_Nuclear_Power_Plant#20...

What works is local and managed by a few people, any Big Thing is a colossus https://en.wikipedia.org/wiki/Onagawa_Nuclear_Power_Plant#20... feet of clay collapse is all the more painful. This state of affairs doesn't seem to benefit to nuclear (vs. 'renewable sources').

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#117
post #16
post #9

Earlier quoted context omitted.

Sound more like a success for the anti-nuclear movement.

The anti-nuclear movement succeeded in Germany and they’re reaping the crops now. Nobody will go back to 1800s quality of life willingly if they can help it, be it by burning coal, trash, plastics, tires or paint cans for heat or electricity.

> The anti-nuclear movement succeeded in Germany

No, the Fukushima accident was decisive. Just before, at the end of 2010, the operating life of nuclear reactors has been extended by law. The Fukushima happened and public opinion reversed, wanting an as-quick-as-possible nuclear phaseout. Not a single political party could save those reactors: https://x.com/HannoKlausmeier/status/1784158942823690561

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#118
post #109

Earlier quoted context omitted.

Nuclear wasn’t completely replaced. The graphs you link to show that Germany’s electricity generation have dropped to the level it was at in the year 2000, and that’s before the last of the nuclear plants were turned off. As a result, Germany’s industrial production is falling. Which will be great for the environment if countries who previously imported goods produced by Germany’s clean nuclear power don’t just switc…

> As a result, Germany’s industrial production is falling The causality here seems debatable. Cheap Chinese goods which take market share from German goods aren't just cheap because of cheap energy.

Indeed: if cheap (for the consumer, not for the taxpayer...) nuclear electricity was sufficient France industry would thrive. Reality: it (sadly) is dying.

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#119
post #109

Earlier quoted context omitted.

Nuclear wasn’t completely replaced. The graphs you link to show that Germany’s electricity generation have dropped to the level it was at in the year 2000, and that’s before the last of the nuclear plants were turned off. As a result, Germany’s industrial production is falling. Which will be great for the environment if countries who previously imported goods produced by Germany’s clean nuclear power don’t just switc…

> As a result, Germany’s industrial production is falling The causality here seems debatable. Cheap Chinese goods which take market share from German goods aren't just cheap because of cheap energy.

It's true that energy intensive industry has been hit hard in Germany. But is also true that the sector has been heavily subsidized for decades. As the carbon mining sector. That was effectively paying the energy cost of those industries with taxes.

In Spain, where we didn's shut down nuclear energy nor have oil or coal, energy intensive industry is also threatening or shutting down (https://www.miningweekly.com/article/alcoa-threatens-to-shut...). The threats are barely hidden "subsidize our costs or else...".

Re: Fukushima Reactor: TEPCO robot aims to extract nuclear fuel

#120
post #107

Earlier quoted context omitted.

But that's kinda the point: name one government in the world where politicians don't play political games, sometimes in ways that put their citizens in danger. I'm sure you can't, because no such government exists. "Everything would have been fine if it weren't for the politicians" is not a path forward. These sorts of disasters will continue to happen.

I agree, but then that should not be falsely characterized as a failure of the nuclear industry and technology. The failure was humans, and a very specific subset at that.

> 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, travelling long-distance thanks to wind, rain...). No wonder renewable sources quickly gain traction.

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