It’s really not, nuclear inherently requires extreme costs to operate. Compare costs vs coal which isn’t cost competitive these days. Nuclear inherently need a lot more effort refining fuel as you can’t just dig a shovel full of ore and burn it. Even after refining you can’t just dump fuel in, you need fuel assemblies. Nuclear must have a more complicated boiler setup with an extra coolant loop. You need shielding and equipment to move spent fuel and a spent fuel cooling pond. Insurance isn’t cheap when mistakes can cost hundreds of billions. Decommissioning could be a little cheaper with laxer standards, but it’s never going to be cheap. Etc etc.
Worse, all those capital costs mean you’re selling most of your output 24/7 at generally low wholesale spot prices unlike hydro, natural gas, or battery backed solar which can benefit from peak pricing.
That’s not regulations that’s just inherent requirements for the underlying technology. People talk about small modular reactors, but small modular reactors are only making heat they don’t actually drive costs down meaningfully. Similarly the vast majority of regulations come from lessons learned so yea they spend a lot of effort avoiding foreign materials falling into the spent fuel pool, but failing to do so can mean months of downtime and tens of millions in costs so there isn’t some opportunity to save money by avoiding that regulation.
Solar and nuclear both really stand out immensely as the safer alternatives.
People tend to think of nuclear as dangerous, but that's just propaganda. There has been a lot of anti-nuclear propaganda over the years. But the numbers speak truth:
https://ourworldindata.org/grapher/death-rates-from-energy-p...
https://ourworldindata.org/grapher/death-rates-from-energy-p...
This means that in choosing between solar/wind and nuclear, one cannot use the deaths/TWh to choose between them unless they are almost dead even in other costs (and they are not).
I don't think anyone is arguing nuclear instead of solar. It's both. We need both.
You might think wind is a good alternative, but Greta Thunberg will vehemently protest that notion [1](and she's got a point, believe it or not)
We have more hydro per capita than almost anywhere in the world, and that's still not enough!
Sure, if you live near the equator, you can get all the power you need by putting solar panels on your roof.
If you don't.... Nuclear is the best option.
[1] https://www.euronews.com/green/2023/10/12/greta-thunberg-and...
This web site provides an optimization scheme for determining how expensive it would be to provide 365/24/7 steady power from wind/solar in various geographical areas, using historical weather data. Even in Europe it's not that bad. The 2030 cost figures may already be obsolete given the crash in battery prices.
Note that in this model it's essential to have something beyond batteries to use for long term storage (to smooth wind output, and to provide seasonal storage of solar output). The model uses hydrogen, but long term thermal storage may be even cheaper. Europe has ample geology for storage of hydrogen (salt formations).