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by arviewer 3462 days ago
In 30 years, solar will have taken over. Using safe existing nuclear power plants is OK for me, building new ones seems stupid. For some countries, replacing an old unsafe one with a good new one seems plausible, but more seems a bad choice.
3 comments

Perhaps the train has indeed left the platform, but the inflection point for solar only happened this year. If the parties to Kyoto had gone home back then and created said regulatory environment for nuclear and gotten on with it, we'd be looking at a 80-90% carbon emissions free electrical grid across the entire western hemisphere today. Climate change would have been more or less solved, and yes, we knew that then, this is not benefit-of-hindsight stuff.

There's a lot of histrionics around putting oil companies in the dock for crimes against humanity, but anyone who's campaigned against nuclear in the last 30 years can go right up and sit next to them.

I prefer not having fukushima events and I'm happy to wait and use coal in the meantime
A coal power plant that is operating normally kills and injures more people, and releases vastly more radioactive particulates into the air, than the Fukushima disaster did.
The Fukushima reactor was old and outdated. Modern reactors are built with passive safety systems that essentially make it impossible for a Fukushima style meltdown to occur.

Ignorance and coal are not the answer.

There's still the centralization problem. Nuclear power is centralized and lends itself to government or corporate control of the energy system, in contrast with solar which gives each property owner individual control.

I'm not saying we can't have both, it's just that the problems with nuclear are not only (perceived or real) safety problems and the fact that it yields byproducts the most tempting use of which is to make nuclear weapons.

I guess the flipside on centralisation is it allows you to build much simpler (and much less) transmission infrastructure (unless we're talking about a scenario where everyone is 'energy independent' at the household level).

I do somewhat agree with you though: the sheer scale of current nuclear power plants (and the technical complexity) means the market is fairly uncompetitive. From what I understand, companies like Westinghouse will practically sell you the plant 'at cost' and then gouge you on the fuel supply contract.

Then again, some of the gen4 designs can work as small, modular fission reactors that might power a small town or community. I know the molten-salt reactor's initial intended applications were: (a) powering army bases and (b) powering a nuclear-powered strategic bombers (which seems rather insane to me).

I agree with you. There are undoubtedly issues with nuclear power but the possibility of a Fukushima/Chernobyl meltdown happening in your backyard is not one of them. The main downside is that this understandable but unfounded fear get in the way of politicians having a meaningful discussions about the real issues of nuclear, such as the one you mentioned.
> Nuclear power is centralized and lends itself to government or corporate control of the energy system As opposed to what we have now?
As opposed to alternatives like solar.

Admittedly solar does not work everywhere, but there are transport mechanisms, and batteries, and it does work in some places. And we have to decide where to spend our money. Spending on solar is a choice that leads to more local control and less centralized control, as compared to spending on nuclear.

And it's not necessarily totally one or the other in every situation. I'm just saying I have a preference for things that favor local control.

That's another problem with Nuclear. After investing a large capital stake into a nuclear plant, the operators are unwilling to make hard decisions on safety because of how deeply they're invested. The Fukushima reactor design was "safe" for the time it was built, and flaws were found afterwards, yet the plant wasn't taken offline.

Modern passive safety systems are safe as far as the designers can anticipate, just like Fukushima, and there is a lot which can go wrong.

You have to think about the trade-offs... even Chernobyl only caused 56 direct deaths and a five-fold increase in the incidence of normal rate of thyroid cancer (a fairly treatable form of cancer) amongst the 18m children exposed.

I say "only" there not to diminish their suffering (it's a terrible thing happening to a huge number of people) but because the consequences of continuing to rely on coal are orders of magnitude worse.

And I'd prefer my eventual children grow up on a planet capable of supporting complex life indefinitely.
Existing nuclear power plants are old designs, much less safe than a new one would be.
Every design will be old after a few decades. If, when these old designs were being built, people were saying "they're not so safe, but in a few decades we'll have a much safer design" and are now saying that we have a safer design, then, it seems reliable. However, if people were saying a few decades ago, "These new designs are much safer than the old ones" and are now saying "Well, THESE new designs are much safer than the old ones" and in a few decades when these designs are old will be saying, "But really, THESE NEW designs are much safer than those old ones" than it's not surprising that there's so much fear and uncertainty from the general public.

Most people aren't experts in nuclear plant design and regulations. They rely on authorities, but when accidents that aren't supposed to happen end up happening, they (rightfully) start to distrust the ability of the authorities to provide them with proper risk assessment. If you tell someone that one Fukushima type disaster will happen every 30 years and that occurs, then they can at least judge the risk and decide whether or not it's worth it. If you tell someone there's little chance of that kind of disaster and then it happens, they're naturally going to be skeptical of your later pronouncements that "Of course that happened to THAT plant, but now there's REALLY little chance of that happening."

People might make a bad decision because of this, but the concern isn't irrational.

> Every design will be old after a few decades.

Time passes. A truly stunning insight.

You've somehow managed to miss the entire point you were responding to. A power plant that is designed today is designed with 50 more years' knowledge of possible failure modes than a plant that was designed 50 years ago.

Does that mean that it cannot fail? No, but as adults we are constantly exposed to risks of all kinds and life is simply a matter of weighing risks and benefits. The car you drive to work is not perfectly safe, and in fact all Americans have an extraordinarily high risk of dying in an auto accident compared to most other causes of death. But you decide that having a job is worth the risk of driving to work, and the cars today are certainly far safer than cars engineered in the 50s or even the 70s.

The risk of a modern nuclear plant is far lower than one engineered during the 50s (as most current reactors are). And truthfully, even those present a much lower health/safety risk than coal plants do.

The biggest problem at this point is that NIMBYs who don't want any upgrades or modernization to take place have stifled replacement of older reactors with safer and more modern ones, and prevented proper reprocessing and disposal of the waste in safe repositories. Instead we just run the older reactors far past their design lifespans and allow the waste to pile up on-site. If you want to bring up Fukushima - most of the contamination was caused by discharging water from the spent fuel pools that are needed to hold all that waste that piles up due to lack of proper disposal.

In other words - NIMBYs literally caused the vast majority of the contamination from the Fukushima accident.

> Time passes. A truly stunning insight.

completely unnecessary sarcasm.

On the other hand, you didn't offer any rebuttal to the arguments I offered, either. You just found fault with a single line and decided to go with it.

A tone argument is a logical fallacy, and I made a substantive post. Do you care to offer anything else in response?

I'm not talking about frequency of disasters but rather their severity. It's not that one Fukushima-type disaster every 30 years is much better than one every 50 years, but that one Fukushima-type disaster is a lot better than one Chernobyl-type disaster.

Fukushima type plants have Chernobyl type disasters approximately never. That part was not a lie.

Supposedly new plant designs never have Fukushima type disasters.

New ones will be just as centralized as old ones. Less democratic, more control of your energy in the hands of a big player, as compared to solar.
"In 30 years" lol, at least the amount of time claimed for the solution is becoming more realistic. 20 years ago, people claimed solar was going to take over in "10 years".
You completely misunderstood me. I'm saying nuclear isn't going to get much better on the next thirty years, while solar has been and is already better, and is getting even better every year. Nuclear costs have been understated since they came out.
This is all predicated on fusion not panning out, correct? I'd also be very surprised to see that there have been no advances that made nuclear more efficient or safe in the last 30 years.