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A comment on The world needs nuclear power and we shouldn’t be afraid of it. Parent comment

Re:The world needs nuclear power and we shouldn’t be afraid ... by jnxx on Saturday October 24, 2020 @05:37AM (#24878041)
> Nuclear power is a zero emissions source of power.

That's not exactly true, apart from mining for example the construction of a reactor building requires huge amounts of concrete. Also, mined uranium needs to enriched by centrifuges before it becomes usable, which is a process that requires a lot of energy.

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Re:The world needs nuclear power and we shouldn’t be afraid ... by pfdietz on Saturday October 24, 2020 @07:24AM (#24878491)
Centrifuge enrichment is actually quite energy efficient, using just 2% of the energy of enrichment by gaseous diffusion.
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Re:The world needs nuclear power and we shouldn’t be afraid ... by jnxx on Saturday October 24, 2020 @10:58AM (#24879588)
That diffusion isn't efficient is not surprising as it's an almost purely entropy-generating process.

But does centrifuge enrichment not use still, in absolute terms, a large amount of energy?

Looking at the EROEI numbers of different enrichment levels:

https://en.wikipedia.org/wiki/EROEI#EROEI_and_payback_period...

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Re:The world needs nuclear power and we shouldn’t be afraid ... by pfdietz on Saturday October 24, 2020 @11:25AM (#24879745)
Your link shows it's a trivial amount of energy compared to what the reactor will produce. As a criticism of nuclear it's a non-starter.
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