I'm all for keeping existing nuclear plants online, but I don't think building new ones is the right decision.
Also, yes, there are viable green hydrogen plants being built today: https://totalenergies.com/media/news/press-releases/total-an... . Also, France is likely to lead in this area because they just got hydrogen produced with nuclear to be considered "green", which is a great thing in my opinion.
I'm sorry to burst your bubble but nuclear has an absolutely terrible track record. Compared to the things you dismiss that are currently running circles around nuclear in terms of cost, GW delivered, etc. It's outpacing nuclear every year more and more.
If somebody figures out how to do nuclear 10-20 times cheaper and faster, I'm all for it. But so far that doesn't exist.
1) Can be deployed at scale (ie, can cover for up to at least 10% of the world's energy needs) 2) Costs less than nuclear 3) Is cleaner than nuclear 4) Is not hydro
Nuclear is not a replacement for renewables. It does not have to compete in price with them. It is, however, our only viable alternative TODAY for base load needs, which obviously cannot be reliably supplied only with renewables.
These are of course not hypothetical fantasy projects that may or may not happen but actual panels on the ground or spinning wind turbines delivering lots of power to grids today.
It's well proven technology. Clean, cheap, predictable in performance and installation cost, etc. Sort of the opposite of nuclear where every new plant is a bespoke thing that is all but guaranteed to blow through it's time and cost budgets. We can speculate on why that is but the fact is that there just isn't a whole lot of nuclear capacity coming online. Which is perhaps part of the reason why it is proving so expensive and hard to build more of it. You might even say it has perpetual issues proving, or rather disproving, it's viability in recent decades.
Whatever the reason, renewables are now dominant in newly installed capacity. These don't need more viability studies. That happened years ago. Renewables are now well on their way to being the dominant source of energy in a lot of markets. In some markets it already is. 10% would be a a distinctly unambitious goal. 50% is a more ambitious goal that could be reached in a decade or so. This decade possibly. With nuclear, that amount of contribution is unthinkable. The cost would be astronomical and there are no concrete plans to make that happen. The budgets for that don't exist. All we have is a lot of magical and wishful thinking.
Also, base load is a very loosely defined notion that somehow never gets nailed down to actual GW of capacity or GWH of storage needed. Can you be specific? The reality is that the only western nation plagued by rolling blackouts is the US, which has a lot of aging nuclear plants and is a bit behind on investments in infrastructure. In places with a much higher dependence on renewables, more modern infrastructure, and less nuclear (like essentially most of Northern Europe) blackouts are basically not a thing.
And of course nuclear sometimes goes offline for maintenance and that can take up significant amounts of time. When it does, it's gone for months or longer.. France is a good recent example that had a large portion of their reactors offline for maintenance just when there was a big energy crisis on courtesy of Russia. Where did their base load come from? Imported energy. France was a net electricity importer during 2022 because of this. 16wth or so. Only about 4% of it's needs; but still. They managed fine. The European grid has a lot of resilience. What grew massively during this period? Renewable energy production.
