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Activists who embrace nuclear power

newyorker.com

441–450 of 598 posts

Re: Activists who embrace nuclear power

#441

Articles like this miss the main point and instead focus on culture war material. There are plenty of sites that would happily accept more nuclear being built, but all other forms of energy have undercut the cost of nuclear. It's no longer cost competitive, and places like China that adopt a "let's try everything and see what works best" approach have heavily pulled back on nuclear. The issues aren't safety, waste, a…

I'm glad you said storage and not "batteries". Batteries are not even in the ballpark for this kind of usage.

The reasonable means of storage are hydroelectric (via water) and offsetting usage of fuels (coal/natural gas/oil/wood/biogas/nuclear). I'm pro-hydro because it is reliable (24h/day) throttable, significant, non-emitting, renewable, and behaves like a battery. The downside is that locals will lose their precious local ecosystem under the reservior. Some costs are worth paying. There has been concern that reservoirs emit methane - this is easily solvable by evacuating the plant material and topsoil ahead of time. As for the concrete issue, I don't have any good answers.

If you really want solar/wind at 4x demand capacity, then the hydro reservoirs could be refilled by pumping water from a lower reservoir. But I think a better mix is just more hydro: use wind/solar when you have it, hydro when you don't.

To back up my battery point, I'll quote Bill Gate's new book: "How many batteries would they need in order to power Tokyo for three days, until the storm passes and they can turn the turbines back on? The answer is more than 14 million [1kwh thought experiment varity $100] batteries. That's more storage capacity than the world produces in a decade."

Re: Activists who embrace nuclear power

#442

Earlier quoted context omitted.

The issue for me is not quantity but time. 1000-10,000 (or even much longer) years for decay is an incredible amount of time for the human race. Written language only appeared ~5500 years ago. Let’s say ancient Rome 2,000 years ago made and stored a substance that kills everyone exposed to it, would we expect that substance to still be intact and unblemished right now?

It's kind of facile to argue about a hypothetical future a thousand years in the future when we're facing crises right now that depend on solving energy issues yesterday. Scenario 1: a hypothetical societal collapse happens and scientific knowledge and written language are somehow lost. A handful of people explore a dangerous area and are swiftly killed by radiation from tampering with a storage facility. Scenario 2:…

> It's kind of facile to argue about a hypothetical future a thousand years in the future when we're facing crises right now that depend on solving energy issues yesterday.

Its facile to dismiss the negative of creating waste that has to be managed for thousands of years based on a sense of urgency for solving immediate problems. Thats payday loan mentality, not statecraft.

> Scenario 1: a hypothetical societal collapse happens and scientific knowledge and written language are somehow lost. A handful of people explore a dangerous area and are swiftly killed by radiation from tampering with a storage facility.

Society collapses and the remaining primitive population is decimated or eradicated because of unmanaged waste entering the ecosystem.

> Scenario 2: millions die from climate-related catastrophes and ecological collapse leads to famines that kill millions more.

You think society collapses to the extent that we can no longer manage the nuclear waste, and millions of people don’t die? Millions of people die in both scenarios, but in one they are greater risk of nuclear waste exposure.

> We know we're facing scenario two as a distinct possibility, or we'd be happily burning coal until we can't find any more.

What is your plan to get China et al to stop burning coal, by the way?

> Fuel reprocessing is a thing, modern reactors deplete the fuel much more thoroughly, and there isn't even that much of it. All of the spent fuel France has used since the 1970s fits in a small fraction of their basketball-court sized storage facility.

I can roll over my payday loan on a miminum wage paycheck, what could go wrong?

Re: Activists who embrace nuclear power

#443

Earlier quoted context omitted.

The issue for me is not quantity but time. 1000-10,000 (or even much longer) years for decay is an incredible amount of time for the human race. Written language only appeared ~5500 years ago. Let’s say ancient Rome 2,000 years ago made and stored a substance that kills everyone exposed to it, would we expect that substance to still be intact and unblemished right now?

In general there is an inverse relation between the half-life and the intensity of radioactivity of an isotope. Isotopes with a long half-life decay very slowly, and so produce fewer radioactive decays per second; their intensity is less. Istopes with shorter half-lives are more intense. In nuclear waste, isotopes with very short half-lives, say a few days or even a few weeks, are not the major concern. They will dec…

The problem is bioaccumulation of radioactive isotopes.

Re: Activists who embrace nuclear power

#444
post #315

Earlier quoted context omitted.

> In this context, solar and wind are atrocious and a total disaster because they have massive land-use requirements. No, they don't. There is a lot of empty land in the world that isn't useful for people to live in or to grow crops due to lack of rainfall, which also makes those sites more valuable for solar energy. We'd consider a utility-scale solar array that's a couple square miles to be absolutely huge, but plo…

>There is a lot of empty land in the world that isn't useful for people to live in or to grow crops due to lack of rainfall, which also makes those sites more valuable for solar energy. There is no such thing as 'empty land'. Every square meter of Earth is part of some ecosystem that is under stress due to human activity. Solar and wind compound this problem. >then reduce that to 30 to account for night-time How abou…

> > There is a lot of empty land in the world that isn't useful for people to live in or to grow crops due to lack of rainfall, which also makes those sites more valuable for solar energy.

> There is no such thing as 'empty land'.

Can't help but be reminded of this classic skit.

"The ship was towed outside the environment."

"...Into another environment."

"No no, it's been towed beyond the environment."

https://youtu.be/3m5qxZm_JqM

Re: Activists who embrace nuclear power

#445
post #190
post #26

Earlier quoted context omitted.

I'm squarely of the opposite opinion. There are 2 main concerns I think "only renewables" solutions miss: 1. Impact on land usage. The sheer amount of land required to provide 3-4x global use is impractical and has major environmental consequences. It's not free to pave over large areas with solar panels or make huge swaths of air unsafe for birds. 2. Cost of storage is usually projected using current prices with som…

About 0.5% of the US needs to be covered in solar panels to meet the US's current energy requirements (about the size of the Mojave desert). About the size of New Mexico needs to be covered to meet the whole world's energy consumption. In the grand scale of things, and considering how much sunny, arid desert land there is in the world (and without even thinking of floating solar farms) that's really not a lot...

It also needs to be sunny 24 hours a day. Solar requires storage. Batteries are non-renewable.

Re: Activists who embrace nuclear power

#446
post #282

Articles like this miss the main point and instead focus on culture war material. There are plenty of sites that would happily accept more nuclear being built, but all other forms of energy have undercut the cost of nuclear. It's no longer cost competitive, and places like China that adopt a "let's try everything and see what works best" approach have heavily pulled back on nuclear. The issues aren't safety, waste, a…

Afaik, nuclear energy is more expensive only because it is regulated far beyond what any other form of energy for the same level of risk. Disposal of nuclear waste is a huge expense, but the main waste product generated by natural gas (CO2) gets away scot free despite literally being the cause of what might be our generation's biggest problem. The end-of-life expenses of nuclear plants are included in the cost sheets…

You can often run these numbers in ways with varying hyper parameters that can get you to nuclear or others as cheaper. I know Brookings did one such analysis in 2014 (note higher solar and wind prices back then)[0] where they included carbon costs at $50/ton and found nuclear to be fairly cheap in that respect. I've also seen some do health and that gives nuclear an edge too. But these are difficult to accurately do and honestly exemplify the complexity of the issue at hand.

The major problem with these comparisons is that people are treating sources as if they are equal and placed on an arbitrary piece of land. As you kinda elude to in your comment with the batteries, that has to be taken into account with wind and solar, but just making it through the duck curve isn't enough since storms exist and everywhere isn't as sunny as southern california. Land mass also matters. Materials for the batteries, etc. This is an extremely complex issue that everyone is overly simplifying and are pulling articles that they don't realize are making simplifications that the authors and experts understand but the linkers don't.

The reason I hate these conversations on HN (and Reddit) is because people are comparing things as if they are equal (I'd expect HN to know that this is the first rule of analysis: compare apples to apples) and then getting really aggressive about a singular metric (anti-nuclear: costs, anti-renewables: batteries, etc. Please don't let these become dog whistles). Being pro nuclear isn't "nuclear vs renewables" it is "nuclear + renewables vs fossil fuels". It is simply not taking it off the table. It is "if the experts think that would be best for the situation then I, as a member of the public and not an expert, am okay with trusting the experts and letting them do what they need to do." If there is an area where nuclear fits best, use it. If it doesn't, don't. One power source for everything is just an idiotic idea. It literally comes down to trusting the experts or not.

[0] https://www.brookings.edu/blog/planetpolicy/2014/05/20/why-t...

Re: Activists who embrace nuclear power

#447
post #439
post #282

Earlier quoted context omitted.

Afaik, nuclear energy is more expensive only because it is regulated far beyond what any other form of energy for the same level of risk. Disposal of nuclear waste is a huge expense, but the main waste product generated by natural gas (CO2) gets away scot free despite literally being the cause of what might be our generation's biggest problem. The end-of-life expenses of nuclear plants are included in the cost sheets…

> Afaik, nuclear energy is more expensive only because it is regulated far beyond what any other form of energy for the same level of risk. This is a ( very ) common misconception. A MIT study found that safety and regulatory increases contributes less than 1/3 of the cost increase in nuclear plants since 1975 (after adjusting for inflation): Since many of the researchers are in the Department of Nuclear Engineering…

SMRs should change this because they'd be produced on an assembly line, just like vehicles or household boilers.

Re: Activists who embrace nuclear power

#448
post #439
post #282

Earlier quoted context omitted.

Afaik, nuclear energy is more expensive only because it is regulated far beyond what any other form of energy for the same level of risk. Disposal of nuclear waste is a huge expense, but the main waste product generated by natural gas (CO2) gets away scot free despite literally being the cause of what might be our generation's biggest problem. The end-of-life expenses of nuclear plants are included in the cost sheets…

> Afaik, nuclear energy is more expensive only because it is regulated far beyond what any other form of energy for the same level of risk. This is a ( very ) common misconception. A MIT study found that safety and regulatory increases contributes less than 1/3 of the cost increase in nuclear plants since 1975 (after adjusting for inflation): Since many of the researchers are in the Department of Nuclear Engineering…

> This is a (very) common misconception.

It is not just a misconception. It is a Big Lie, endlessly repeated, endlessly debunked. Continuing to repeat it makes one a Big Liar.

When you need to lie to make your case, you don't have one.

People started lying about nuclear power before it even existed: "Too cheap to meter", they said. Now with FOIA we have documentary evidence that they knew at the time it would always be a high-cost choice. But on the back of Red Scares and nuclear weapons tie-ins, they got and still get monstrous public subsidies, so we all pay, wherever we get our power.

In recent years, the agency that had once collected payments from nuke operators for waste placement has instead been paying out huge amounts to remaining operators, who pocket it.

The only bigger liar is fusion research. There, the only tech the feds will fund is hot-neutron fusion; that's the giveaway that it is really just a jobs program for hot-neutron physicists, to maintain a population to draw on for weapons work.

There will never be one lonely erg of commercially-viable Tokamak fusion. It can never even begin to approach competitiveness with solar + wind + storage, even without counting the enormous sunk cost of decades of $billions/year with nothing meaningful to show for it.

The continued hemmorhage of money for Tokamaks starves actually potentially-viable fusion programs.

The reason administrators like huge centralized projects like nuke plants always are is that they provide almost unlimited scope for corruption: steady, year-over-year corruption. Cost overruns are not accidental; they are the whole point of the operation.

Small modular nuke plants don't offer scope for as much corruption, so they would face an uphill battle even if they could be made compretitive. But even with huge subsidies and high pricing, they weren't competitive, nothing new has made them cheaper, and prices are still plummeting.

Re: Activists who embrace nuclear power

#449
post #282

Earlier quoted context omitted.

Afaik, nuclear energy is more expensive only because it is regulated far beyond what any other form of energy for the same level of risk. Disposal of nuclear waste is a huge expense, but the main waste product generated by natural gas (CO2) gets away scot free despite literally being the cause of what might be our generation's biggest problem. The end-of-life expenses of nuclear plants are included in the cost sheets…

You can often run these numbers in ways with varying hyper parameters that can get you to nuclear or others as cheaper. I know Brookings did one such analysis in 2014 (note higher solar and wind prices back then)[0] where they included carbon costs at $50/ton and found nuclear to be fairly cheap in that respect. I've also seen some do health and that gives nuclear an edge too. But these are difficult to accurately do…

Personally I get defensive when people pit nuclear as a solution to the climate disaster because I am skeptical that it is. And worse I think considering nuclear as a solution to be harmful to the effort to combat the climate emergency. It reminds me of how people would pit GMO as a solution for world hunger, when better food distribution is a better solution; or when people pit self driving cars to combat traffic congestion when public transit infrastructure is a better solution.

I consider this harmful because in some cases it might affect public policy. See example of city governments delaying or canceling needed public transit infrastructure because of the promise of the self driving car, or hyperloop and whatnot.

New nuclear sounds to me like a similar pipe dream. It is not a good solution to combat the climate disaster (renewables are), and people advocating for it risk affecting public policy that might get much needed renewable infrastructure delayed or cancelled.

Re: Activists who embrace nuclear power

#450
post #315

Earlier quoted context omitted.

> In this context, solar and wind are atrocious and a total disaster because they have massive land-use requirements. No, they don't. There is a lot of empty land in the world that isn't useful for people to live in or to grow crops due to lack of rainfall, which also makes those sites more valuable for solar energy. We'd consider a utility-scale solar array that's a couple square miles to be absolutely huge, but plo…

>There is a lot of empty land in the world that isn't useful for people to live in or to grow crops due to lack of rainfall, which also makes those sites more valuable for solar energy. There is no such thing as 'empty land'. Every square meter of Earth is part of some ecosystem that is under stress due to human activity. Solar and wind compound this problem. >then reduce that to 30 to account for night-time How abou…

Agriculture uses orders of magnitude more land than energy generation (half of all habitable land on Earth). If you are worried about global habitat loss, start by figuring out how to make food production more space- and resource-efficient.

After that you can move on to reducing the amount of space we have devoted to suburbs; the amount of water, sand, and metal we use; the amount of plastic we dump into the ocean; the infrastructure and energy required for our transportation networks; etc.

Cutting down on space for solar panels is way way way down the list.

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