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[-] MonkderVierte@lemmy.ml 7 points 4 hours ago* (last edited 4 hours ago)

But if the magic rocks (facility) cost more than creating energy from the water the magic rocks need for cooling...

[-] Melatonin@lemmy.dbzer0.com -2 points 1 hour ago
[-] Teppichbrand@feddit.org 71 points 8 hours ago

1000005010. Don't feed the troll 💩

[-] iii@mander.xyz 8 points 7 hours ago

As long as you don't care when the electricity is produced

[-] uniquethrowagay@feddit.org 9 points 6 hours ago

Storage is a solvable problem. Whereas we don't have the resources to power the world with nuclear plants.

[-] iii@mander.xyz 14 points 6 hours ago

Storage is a solvable problem

I'm not convinced it is. Storage technologies exist for sure, but the general public seems to grossly underestimate the scale of storage required to match grid demand and renewables only production.

[-] Natanox@discuss.tchncs.de 10 points 6 hours ago

I think you underestimate how much storage power is currently being build and how many different technologies are available. In Germany alone there currently are 61 projects planed and in the approval phase boasting a combined 180 Gigawatts of potential power until 2030. Those of them that are meant to be build at old nuclear power plants (the grid connection is already available there) are expected to deliver 25% of the necessary storage capacity. In addition all electric vehicles that are assumed to be on the road until 2030 add another potential 100GW of power.

Of course these numbers are theoretical as not every EV will be connected to a bidirectional charger and surely some projects will fail or delay, however given the massive development in this sector and new, innovative tech (not just batteries but f.e. a concrete ball placed 800m below sea level, expected to store energy extremely well at 5.8ct / kilowatt) there's very much reason for optimism here.

It's also a funny sidenote that France, a country with a strong nuclear strategy, frequently buys power from Germany because it's so much cheaper.

[-] Ooops@feddit.org 12 points 5 hours ago

Another important note about France: They are the second country alongside Germany heavily pushing for an upscaled green hydrogen market in the EU. Because -just like renewables- nuclear production doesn't match the demand pattern at all. Thus it's completely uneconomical without long-term storage.

The fact that we seem to constantly discuss nuclear vs. renewables is proof that it's mostly lobbying bullshit. Because in reality they don't compete. It's either renewables+short-term storage+long-term-term storage or renewables+nuclear+long-term storage. Those are the only two viable models.

[-] iii@mander.xyz 7 points 4 hours ago* (last edited 4 hours ago)

upscaled green hydrogen market

That's been the talk in town for 40 years now. Green hydrogen has never gotten beyond proof-of-concept.

The fact that we seem to constantly discuss nuclear vs. renewables is proof that it's mostly lobbying bullshit.

Sadly, it's because the political green parties available to me are anti-nuclear.

It's either renewables+short-term storage+long-term-term storage or renewables+nuclear+long-term storage.

Why is nuclear+short term storage not an option, according to you?

[-] Ooops@feddit.org 1 points 3 hours ago* (last edited 3 hours ago)

Why is nuclear+short term storage not an option

Because cold winter days exist. Yes you can only build nuclear capacities for the average day and then short-term storage to match the demand pattern. But you would need to do so for the day(s) of the year with the highest energy demand, some cold winter work day. What do you do with those capacities the remaining year as throttling nuclear down is not really saving much costs (most lie in construction and deconstruction)?

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[-] iii@mander.xyz 4 points 4 hours ago* (last edited 4 hours ago)

It's not just power that's needed (MW), also stored energy (MWh).

Germany consumes on average 1.4TWh of electricity a day (1). Imagine bridging even a short dunkelflaute of 2 days.

Worldwide lithium ion battery production is 4TWh a year (2).

It's also a funny sidenote that France, a country with a strong nuclear strategy, frequently buys power from Germany because it's so much cheaper.

Isn't that normal? The problems with renewables isn't that they generate cheap power, when they are generating. Today windmills even need to be equipped with remote shutdown, to prevent overproduction.

The problems arise when they aren't generating.

[-] Natanox@discuss.tchncs.de 1 points 3 hours ago

Your estimation goes way off because you still believe lithium ion to be the only viable solution. By now Sodium-Ion batteries are already installed even in EVs and can be produced without any critical resource like lithium.

And then of course there are all the other storage solution. Like I said, there even are storage solutions like concrete balls. Successfully tested in 2016, here an article from 2013.

By now it wouldn't be wise to stifle this enormous emerging market of various technologies by using expensive, problematic technology (not just because the biggest producer of fuel rods is Russia).

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[-] barsoap@lemm.ee 1 points 4 hours ago

The watthours is what gas is for. Germany's pipeline network alone, that's not including actual gas storage sites, can store three months of total energy usage.

...or at least that's the original plan, devised some 20 years ago, Fraunhofer worked it all out back then. It might be the case that banks of sodium batteries or whatnot are cheaper, but yeah lithium is probably not going to be it. Lithium's strength is energy density, both per volume and by weight, and neither is of concern for grid storage.

Imagine bridging even a short dunkelflaute of 2 days.

That's physically impossible for a place the size of Germany, much less Europe.

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[-] Teppichbrand@feddit.org 0 points 3 hours ago* (last edited 3 hours ago)

Another problem arises when you're generation 63.688 after today and still have to keep maintaining deadly waste from nations that don't exist anymore, because they produced "cheap" and "clean" energy for a couple of decades.
Come on, Jesus died like 2000 years ago, this stuff will haunt us for centuries. Arguing in favor of nuclear energy is just selfish and shortsighted.

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[-] drake@lemmy.sdf.org -3 points 2 hours ago

There is a huge lobby of pro-nuclear think tanks who try to astroturf pro-nuclear shit onto social media. We, scientifically literate, rational people, need to counteract these harmful narratives with some facts.

FACT: Renewable sources of energy are as cheap or cheaper per kwh than nuclear.

FACT: Renewables are faster to provision than nuclear.

FACT: Renewables are as clean, or cleaner, than nuclear.

FACT: Renewables are much more flexible and responsive to energy fluctuations than nuclear.

FACT: Renewables will only get cheaper. Nuclear will only get more expensive, because uranium mining will get harder and harder as we deplete easily accessible sources.

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[-] SaharaMaleikuhm@feddit.org 22 points 9 hours ago

No it's about nuclear waste and where to store it, it's about how expensive it is to build a nuclear power plant (bc of regulations so they don't goo boom) and it's about how much you have to subsidize it to make the electricity it produces affordable at all. Economically it's just not worth it. Renewables are just WAY cheaper.

[-] el_abuelo@programming.dev 53 points 8 hours ago

Funny how people think waste is why we don't use nuclear power.

You noticed how we're all fine breathing in poison and carcinogens? Still haven't banned burning fossil fuels.

It's a money problem and a PR problem

[-] Hoimo@ani.social 2 points 4 hours ago

And much of the PR problem is related to waste. The main push towards alternative energy sources comes from people worried about the long term consequences of burning fossil fuels. These same people worry about the long term consequences of nuclear waste production, so nuclear sabotages itself on this front.

[-] el_abuelo@programming.dev 7 points 4 hours ago

Exactly, bad PR.

Waste isn't actually much of a problem - it's just been portrayed as one.

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[-] JackbyDev@programming.dev 5 points 6 hours ago

No it's about nuclear waste and where to store it,

Is this video inaccurate? This isn't meant as a gotcha comment. https://youtu.be/4aUODXeAM-k

[-] beeng@discuss.tchncs.de 10 points 9 hours ago

Fire's waste is just all particulates in the air which we all share.

[-] prettybunnys@sh.itjust.works 2 points 2 hours ago

Yeah but we got lungs to filter that all out … or smth idk how this works

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[-] Takumidesh@lemmy.world 75 points 13 hours ago

Funny how nuclear power plants are taboo, but building thousands of nuclear warheads all over the globe is no issue.

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this post was submitted on 16 Nov 2024
761 points (86.7% liked)

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