Live data from Hacker News

Why Nuclear Must Be Part Of The Energy Solution (2018)

e360.yale.edu

91–100 of 249 posts

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#91
I am in no way or shape against nuclear power per se. I know its technology, I have studied the engineering behind it etc. Still, any argument against nuclear is immediately categorized as "fearmongering" no matter how much it isn't based on the technology itself. Facts and an interest in truly bringing your country forward don't matter. Money and lobbyism is what rules the discussions.

No matter how many subversive nuclear shills keep posting on reddit and other forums. Reddit drowns in fake marketing/PR accounts, you can buy them by the thousands. In the past, I have seen templates for responses written in the weekly pro-nuclear threads. But whatever - just one simple statement that remains true in 2021 is this:

Nuclear fission power is entirely uneconomical and already replaced by safer, better alternatives.

And on top of the insane cost - plants will never be profitable without lifelong government subsidies - the insane length of construction and planning to build new modern generation plants is completely out of what's reasonable because we have to tackle climate change NOW. You're looking at $20bn and 10-15 years of construction at least.

Finland is currently struggling to finish their new reactor and it costs them dearly. Just invest in renewables and be done with it far sooner at much lower cost and factor 1000 less problems (aside from lobbyism and shilling). Just look at this mess of cost and lost time: https://en.wikipedia.org/wiki/Nuclear_power_in_Finland#New_c... All that jazz for a measly 1600 MW.

Less than 1500 off-shore wind power turbines deliver a whooping 7.5 Gigawatt for Germany [1]. If you can build 300 wind turbines in 20 years at a fraction of the cost of a single nuclear plant you will have the same output and no possible nuclear incidents or nuclear waste to take care of. Mix it with other renewables and you get the power consistency you need. Nuclear in 2021 is so incredibly unreasonable it bothers me to no end.

In Germany, we still have no reasonable way to dispose of 1900 CASTOR containers containing dangerous plutonium with a half-life of 24,000 fucking years. The containers are rated for 40 year protection btw.

We have a super majority that rejects nuclear power. Do we struggle sometimes to make the shift away from fossil fuels AND nuclear at the same time? Yes. Do we have to buy power from France or other neighbors in times of high demand? Has happened before. But we are making progress and are able to sustain a large portion of our economy on renewables TODAY.

If we had this discussion in 1990, my opinion would have been different. But it's too late and too expensive now to shift back into nuclear. By 2042, when a plant planned TODAY would go online, our renewable infrastructure will far outdo what any nuclear plant is capable of in terms of risk-reward.

[1] https://www.cleanenergywire.org/factsheets/german-offshore-w...

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#92

Earlier quoted context omitted.

"four times as expensive as wind" This isn't a valid comparison, since wind isn't capable of base load supply. You would need to factor in storage costs to make the comparison valid.

Batteries are also getting cheaper and improving in capacity at immense rates too no? It seems like a double whammy against nuclear, unless there’s something I’m missing?

That's fine, but show your work. Nuclear gives us 24/7 reliable power. What is the cost comparison for renewables for the same product?

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#93
post #50

The article does not explain why nuclear must be part of the energy solution. In fact, the argument seem to be that nuclear has been the target of fear mongering from environmentalists and therefore nuclear must be a part of the energy solution which is a fallacy. Germany has decommissioned numerous nuclear plants (Energiewende) and yet its GDP is up and its coal consumption down. https://www.cleanenergywire.org/fact…

Okay, so let's dig in:

1: Electricity is roughly 25% of a country energy expense. If we want to fight climate drift, electricity should become 80% of the total energy expense at the very least. That mean multiplying the number of power plants by 3.5 roughly, if we want to keep the same level of comfort (and by two if we accept to loose 40% of our GDP).

2: here are the cost of a 100% renewable mix: https://www.sciencedirect.com/science/article/pii/S030626191...

The land usage cost is ignored, but as 80% of the agricultural surface in the EU is used by animal or for animal feed, let's say we all divide our consumption by 7 (eat meat once a week), and the fred agricultural land can be used for biomass and solar.

The need in rare earth and how much of the worldwide production europe would take in this scenario isn't sustainable, but let's believe in an infinite earth with infinite ressources, so the extraction rate isn't an issue and is done solely with renewable. Europe still need more than 40% of the world future production.

3. So now, using the information you got with 1/, in a scenario with merely doubling the electricity output and reducing GDP by 40%, expand the data on 2/ (still without nuclear plant).

Draw your own conclusions, look at the data yourself, i only did order of magnitude calculations and it seems obvious to me. If one of my point is wrong, please explain why.

Okay, now in the price category: EDF is forced by France to sell its electricity to its competitor at a low price, and basically give it for free for some institution. Also, it is forced to cover the cost of an industrial failure it did neither start nor want, and to bear the cost of political choice (fessenhein closure). Despite that, i'm pretty sure electricity is cheaper in France than in most other European countries with no access with cheap hydro. Oh, and EDF bear the full cost of future nuclear plant decommission, so the "ït will cost more in the future" shit is wrong and already accounted for.

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#94
There are many videos of Jean-Marc Jancovici on this subject. Some of them are in English. It gives documented pragmatic analysis. One conclusion is clear: Current nuclear plants shall be preserved to smooth the energetic transition (fossil free). What has been done in Germany was not wise.

It is less obvious whether we shall build new nuclear plants or focus on new energy sources. In France, we struggle to recover our aptitude to build new plants.

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#95
post #32

Earlier quoted context omitted.

What about the resources needed to build the solar and wind infrastructures ? Metal, extraction of that metal, rare earths,... ? I'm all for solar and wind and whatever, but at some point there are some maths to do... https://www.youtube.com/watch?v=E0W1ZZYIV8o

Isn’t nuclear power really expensive? Solar and wind I think are just materially cheaper than anything else even including construction. I’m looking at the Lazard 2020 Levelized Cost of Energy report here: https://www.lazard.com/media/451419/lazards-levelized-cost-o...

Nuclear is expensive in the short term and remarkably cheap in the long run. https://www.youtube.com/watch?v=cbeJIwF1pVY

That said the more intermittent ambient energy is on the grid the more difficult it is for nuclear to operate 24/7, which makes it take longer for nuclear to go from expensive to cheap.

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#96
> Elizabethan preachers railed against a fuel they believed to be, literally, the Devil’s excrement.

1. So it seems, 500 years later, as we struggling with all the issues this resource has caused and still causing they were not wrong...

> For too many environmentalists concerned with global warming, nuclear energy is today’s Devil’s excrement

Read (1)

--- It is only a question who will suffer along the lines, after we are long gone from the existence.

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#98
post #64

Earlier quoted context omitted.

The issue is that solar/wind can only provide so much of your country’s energy supply, due to storage issues. So you’re then left with a choice. Go with nuclear, or use fossil fuels, to make up the remainder of your energy consumption. For example, Germany is still under 50% renewable despite their recent pushes. But instead of getting the other 50% from a relatively clean source (nuclear), they choose instead to use…

> "But instead of getting the other 50% from a relatively clean source (nuclear), they choose instead to use fossil fuels." Unless you're saying that Germany is choosing to build new fossil fuel plants instead of building more renewables (which it largely isn't), what you're describing is a transition that isn't finished yet, not a choice.

This transition can _never_ be finished. There is no reality in which, in 2025, or 2030, or 2040, Germany is running 100% on renewables. Let's have a quick look at the german energy mix:

https://www.electricitymap.org/zone/DE

As I write this:

* Germany has 68GW of wind capacity. Only 3GW are currently producing, because there's no wind.

* Solar is doing just as bad, with 9.11GW active out of 53GW

* Even worse, in the last 24 hours, wind has basically been at 5% capacity the entire time. Solar picked up quite a bit, but the base production is guaranteed by coal plants. This gets immensely worse at night where this rises to over half of their energy output

* Each kWh has cost the world the emission of 400g of CO2.

* Even in the best possible conditions, their green mix still ejects 210g of carbon per kWh.

The green energy ayatollahs, with their there-is-no-alternative policy are making things worse by refusing a temporary, controlled, safe source of energy. Is nuclear ideal ? No. Should it be a temporary (~100 years or so) source of energy while we transition to better options ? Yes. Is it the best solution that we have to fight climate change as it stands ? Absolutely.

And yes, they are building new coal plants to make up for their decisions. Datteln 4 just started up last year.

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#99
post #75
post #2

No other fuel has the energy density of nuclear, no other source has the capability to run 24/7/365. Renewables are based on the hope that one day we will either had transcontinental grids, which no one has managed to build, or get batteries with energy storage seen only in Star Trek. Nuclear on the other hand has been here for 50 years and could have already solved our CO2 problems. But because it's unfashinable to…

> Renewables are based on the hope that one day we will either had transcontinental grids, which no one has managed to build, or get batteries with energy storage seen only in Star Trek. That's absolutely ridiculous. Even with nuclear power, we'll need to produce MASSIVE amounts of hydrogen to cut all carbon emissions. If we have enough renewable hydrogen production plants to make all the hydrogen we need for ships,…

> Seasonal variations in cold climates can be handled better by trash burning facilities. Yeah, recycle/reuse first, but eventually you'll need to get rid of a lot of non-recyclable mixed waste regardless.

Do you have any numbers or sources to provide for this claim?

> If we have enough renewable hydrogen production plants to make all the hydrogen we need for ships, planes, steel production, farming and fertilizers, we'll have all the energy regulation and storage capability we'll ever need.

So your argument is predicated on a future breakthrough in hydrogen production and storage that is so impressive it solves both transportation problems and renewable energy intermittancy? And you argue this is better than using a proven source of baseline energy today?

Re: Why Nuclear Must Be Part Of The Energy Solution (2018)

#100
post #50

The article does not explain why nuclear must be part of the energy solution. In fact, the argument seem to be that nuclear has been the target of fear mongering from environmentalists and therefore nuclear must be a part of the energy solution which is a fallacy. Germany has decommissioned numerous nuclear plants (Energiewende) and yet its GDP is up and its coal consumption down. https://www.cleanenergywire.org/fact…

Regarding the decommission of the nuclear plants in Germany: I don't understand why they are shutdown early, because the major CO2 investment happens during construction. So wouldn't it make sense to leave the active nuclear plants running until their original retirement date, and rather shutdown the coal plants early?

That's more or less what they are doing. Most of the reactors that have been shut down were built in the 1970s when safety standards weren't as strict as they are today. https://cnpp.iaea.org/countryprofiles/Germany/Germany.htm That is, the reactors were over 40 years old and were reaching their end-of-life dates anyway. Upgrading them to conform to modern safety standards isn't cost-effective.

Essentially, this is what the nuclear phaseout entails; old plants are decommissioned and governments refrain from subsidizing the construction of new ones.

Post reply on HN