this post was submitted on 01 Aug 2023
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First U.S. nuclear reactor built from scratch in decades enters commercial operation in Georgia::ATLANTA — A new reactor at a nuclear power plant in Georgia has entered commercial operation, becoming the first new American reactor built from scratch in decades.

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[–] [email protected] 33 points 1 year ago (76 children)

14 years and 35 billion (combined with #4 which has not been finished) and didn't generate a single kWh in anger until now. Put the same investment into renewables and it would generate similar or greater energy and would start doing so within a year.

The argument against nuclear now is not about safety. It is about money. Nuclear simply cannot compete without massive subsidies.

[–] tara 13 points 1 year ago (2 children)

There’s also a reliability element too. Nuclear can reliably output a given amount of energy, at the cost of being slow to alter. Many renewable sources have sporadic amounts of power throughout each day. Either is better than fossil fuels at least.

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

Good point but that is not insurmountable. There are many ways to achieve predictability (batteries, hydro, tidal) that also come on stream much quicker than any nuclear plant.

[–] tara 1 points 1 year ago

Ah I’d not consider these! That gives some hope too then :) I hope we get the battery advances we need asap, the urgency from the climate crisis is strong lately.

[–] gmtom 1 points 1 year ago (3 children)

Nuclear isn't entirely reliable though. During the big heatwave last year at least 1 and iirc at leat a few French reactors had to be shut down because the water levels in the rivers they were on were not high enough to get sufficient water to cool them. Which is a problem that's only going to get worse as climate change progresses.

[–] [email protected] 7 points 1 year ago* (last edited 1 year ago)

That's a limitation of the secondary power conversion side and is true for any power generation methodology that relies on steam generation. That said, there's alternatives to the traditional Rankine cycle that could be deployed without modifying the nuclear side of the plant.

[–] [email protected] 4 points 1 year ago

I don't recall them being shut down (that would be a drastic step). They were forced to reduce output, though (making the energy more expensive).

[–] kameecoding 1 points 1 year ago

there are a bunch of new reactor designs that don't use water.

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