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[–] [email protected] 14 points 10 months ago (5 children)

Nuclear power is literally more expensive at this point than renewables. No, you can't keep using the shitty, cracking, deadly waste producing nuclear plants of the past, not even the power companies want that, and building new ones takes over 10 years, not counting all the planning and beaurocracy you have to go through. And to become CO2 neutral after all the excavation, construction and mining necessary takes another decade. Nuclear power plants are MASSIVE engineering undertakings.

Meanwhile modern windmills can be mass-produced right now and take like 5 years depending on their placement to be both cost and CO2 neutral. After that it's LITERALLY free energy for a good 30 years. And they become cheaper and bigger and more efficient every single year. And btw if you ever pull out an article or a calculation that is older than a year for any comparison, you are dealing with OLD data. They have become far more efficient and flexible in their placement and will likely continue to do so.

The anti-nuclear protests were completely right. Stop playing the people who wanted a safer world without nuclear waste and incidents against the modern climate movement.

TL;DR: Wheels on windmill go brrrr, nuclear power is not a short term solution and never has been.

[–] [email protected] 42 points 10 months ago (52 children)

Nuclear and renewables are complementary technologies, renewables are a much more volatile source of energy. Also, when people say renewables are cheaper they're not counting the total lifecycle of things like wndmills and solar panels.

[–] [email protected] 6 points 10 months ago (1 children)

when people say renewables are cheaper they're not counting the total lifecycle of things like... solar panels.

Yeah the LCOE of solar is likely ridiculously low because they still work decades after th started 25 year life used in levelised cost calculations

Nuclear in the west is so tremendously expensive we may as give up until China makes SMRs cheap

[–] [email protected] 13 points 10 months ago (1 children)

I mean China is already making all the solar panels at this point, so we might as well wait for them to role out nuclear globally.

[–] [email protected] 11 points 10 months ago (1 children)

Good news, the Chinese artificial sun has reached 403 seconds of stability. Up from 100 seconds 7 years ago. Once it reaches 1000 seconds at 50,000,000 Kelvin, it would mean it produces more energy than igniting the "sun" would cost.

[–] [email protected] 3 points 10 months ago

I do think it's very likely that we'll see fusion working within our lifetimes. If China manages to get a fusion plant online then that really will solve all the energy problems for the foreseeable future.

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[–] [email protected] 12 points 10 months ago* (last edited 10 months ago) (2 children)

Jesus Christ you're so uneducated it's ridiculous.

So you've got a point nuclear power is considerably more expensive than renewables but that was never the argument. It has always been more expensive than renewables, who possibly thought it wasn't, that's literally never not been the case, even 30 years ago.

The reason to use nuclear power is a base load. Renewables cannot generate the necessary level of energy demand in their entirety with the reliability that we need. It's called base load Google it.

So you need something to provide constant reliable sources of energy, so you've got two options either we build a Dyson sphere and have solar panels all over it, or we have nuclear power stations. And I think you'll agree that a dysons sphere might be a bit beyond us at this point.

[–] [email protected] 4 points 10 months ago (15 children)

If one thing is more expensive by some criteria guaranteeing something necessary and another thing cheaper by the same criteria not guaranteeing that, then the latter just doesn't exist.

So nuclear energy is cheaper than alternatives for the same purpose.

Just like an active volcano may suddenly let out a lot of magma which is going to be quite warm, but one can't just project as if that amount of heat is distributed over the average period between eruptions, while considering it for heating houses.

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[–] [email protected] 2 points 10 months ago (7 children)

Pump water to height when it's windy , let it down when it's not. Load balanced. Not so hard eh?

[–] [email protected] 4 points 10 months ago

Sure that would work in theory but you would struggle to get any kind of capacity with that system, and of course reservoirs are actually quite damaging to the environment, since you have to flood large areas of land.

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[–] [email protected] 2 points 10 months ago (1 children)

No, you can’t keep using the shitty, cracking,

They can be safely renovated, just informing you.

deadly waste producing nuclear plants of the past,

Don't think people are stupid. That deadly waste naturally becomes less deadly over time. There are procedures for nuclear waste processing and burial sites and when those can be reused. The cycle takes many years, but that'd be the same with keeping forests, for example.

[–] [email protected] 2 points 10 months ago (1 children)

I don't think that's true. We will have to store our nuclear waste safely for geological timescales: possibly millions of years. Currently only two working reprocessing plants exist in France and Russia and they can be employed to produce weapons-grade plutonium. In France currently only 10% is recycled.

Sources: https://www.forbes.com/sites/christinero/2019/11/26/the-staggering-timescales-of-nuclear-waste-disposal/?sh=58d3d09f29cf

https://en.m.wikipedia.org/wiki/Nuclear_reprocessing

[–] [email protected] 2 points 10 months ago (1 children)

Ah, I've just mixed up things a bit. I was thinking of fast-neutron reactors. Waste from these is less cumbersome, and the existing waste can be partially reused with them.

[–] [email protected] 1 points 10 months ago* (last edited 10 months ago) (1 children)

But they still do produce radiactive waste, which has to be taken care of. Its true that the amount and toxicity of long lived waste is reduced. But we still need to take care of the rest. And as there is no long-term storage facilty to safely deposit the waste, I do think the risk of storing nuclear waste on the surface is too high.

I'm no expert on this topic, but reading this, it also sounds like the currently running Fast-Neutron Reactors do not recycle their fuel at this point in time.

Fast-neutron reactors can potentially reduce the radiotoxicity of nuclear waste. Each commercial scale reactor would have an annual waste output of a little more than a ton of fission products, plus trace amounts of transuranics if the most highly radioactive components could be recycled.

Source: https://en.wikipedia.org/wiki/Fast-neutron_reactor

[–] [email protected] 2 points 10 months ago (1 children)

And as there is no long-term storage facilty to safely deposit the waste,

Yes, we don't have things until we purchase or make or in this case build them.

but reading this, it also sounds like the currently running Fast-Neutron Reactors do not recycle their fuel at this point in time.

I'm not an expert either, what I meant is that waste from dirtier kinds can partially be used as fuel for these, and I think I've heard they already do that.

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago) (1 children)

But this is exactly the current problem in Germany: It is currently not feasible to create a long-term storage facility for nuclear waste. This is a extremely heated discussion with a lot of emtion going around. I do think we desperatley need such a facilty and we should have a process based on scientific evidence to find such a site. This is a work in progress by the German "Federal Office for the safety of Nuclear Waste Management". But as long as we do not have such a site I think it's iresponsible to produce more nuclear waste.

My second point is that this seems not be done currently as the vocabulary used is "could be used" and "has the potential".

[–] [email protected] 1 points 10 months ago (5 children)

But as long as we do not have such a site I think it’s iresponsible to produce mre nucler waste.

That nuclear waste is being sent to countries having such facilities ; they also have some recycling capacity\expertise. Also introducing blockers where you don't need them seems a bad idea for me always.

My second point is that this seems not be done currently as the vocabulary used is “could be used” and “has the potential”.

I'm not a specialist, at all. I've heard it is sometimes done to some extent. That's all I can give you.

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[–] [email protected] 2 points 10 months ago

After that it’s LITERALLY free energy for a good 30 years.

If you ignore the other environmental costs, you mean. Just like solar, which causes untold damages from the disposal of mining refuse, but that gets conveniently ignored by first world nations, because most of the mining doesn't happen where you live.

[–] [email protected] 1 points 10 months ago

The issue is battery storage. Our current battery technology is terrible both ecologically and in terms of what it does to the people mining it and living in those countries.