alt Hacker NewsThere's two very different types of reactors: the already-paid-for long-run reactor that's still going, and then on-paper-not-yet-constructed reactor in a high cost of living nation.
Building lots of new nuclear instead of doing the cheaper option of tons of batteries and renewables, only makes sense in a few geographic locations. Not all, or even most!
Even keeping old reactors running gets super expensive as they get past their designed lifetimes, and very often doesn't make sense.
The engineering is indeed already done for electricity, and storage and renewables are cheap and getting cheaper. Nuclear is at best staying the same high cost, and getting more expensive is these large construction projects rise due to Baumol's cost disease.
Opposing more nuclear in the US in the 1980s wasn't fully irrational, the US managerial class have way overbuilt nuclear and we didn't need all the electricity. Then we didn't have much growth in
The far bigger fight for climate these days isn't electricity: it's car-centric living, it's the anti-EV and anti-battery advocates, and to some degree it's retrofitting the wide variety of highly-cost-sensitive industries, such as steel or fertilizer or concrete, to use carbon neutral methods. Or maybe sustainable aviation fuel.
Nuclear had it's chance to be a big contributor to climate action back in the mid 2000s and 2010s, it failed that challenge in Georgia at Vogtle, in South Carolnia at Summer, in the UK at Hinkley Point C, in France in Flamanville, and in Finland an Olkiluoto. Every one of those failures is a very good reason for a climate activist to oppose nuclear.
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>Building lots of new nuclear instead of doing the cheaper option of tons of batteries and renewables
This is not the cheaper option.
You need to have batteries that can store power for at least a week to have base load as reliable as nuclear power. There isn't enough battery capacity in the world to do this for a state like California, let alone the whole country.
Back in the 1980s if the US had followed France's lead, then we'd be in the position they're in now: 70% nuclear with much lower per-capita emissions.
> The far bigger fight for climate these days isn't electricity: it's car-centric living
All of transportation, including commercial + aviation, in the US is 28% of greenhouse gasses, electric generation is 25%. They're functionally equivalent. Further, a common refrain from environmentalist messages I've seen my entire life is that "every bit counts" and that's used to justify why an individual should say, buy an EV or recycle.
Personally, I agree with that logic, but I also think grid-level power sources matter more.
If you think we're in an existential crisis then costs be damned, shutter every natural gas and coal plant and replace them with nuclear as quickly as it can be built under extremely aggressive bypassing of red tape that's not safety critical. The US and EU print trillions to fund wars, if it's an existential risk, certainly we can do the same to cut carbon.
If it's a pragmatic decision to slowly shift to wind + solar based on costs (while still burning a lot of natural gas for when the wind doesn't blow and the sun doesn't shine), that's fine, but it doesn't really convey an existential urgency.