this post was submitted on 27 Jun 2024
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Sorry, but that is far from correct. Of course you can throttle wind and solar production if you want, but the problem of to much energy is a nice to have. You could create Hydrogen or desalinate water in large scales if you got energy left over Regarding nuclear power: If you calculate the cost of nuclear and include that you need to store the waste for thousands of years it's not cheap either. And you also need to source the fuel from somewhere. Uranium is not abundant. And also it takes 20 years to build an new plant. By then it will be even lest cost effective. Rather continue with wind and solar and then batteries for the money.
This hasn't been true for decades.
High Level Nuclear waste, aka spent fuel, can be run through breeder reactors or other new gen types to drastically reduce their radioactive half-life to decades and theoretically years with designs proposed in the last few years. Only reason reactors don't do this is lack of funding and demand for such things, the amount of high level waste produced is miniscule per year. And there are theories proposed already that could reduce ot further but nuclear phobia pushed by the oil lobby prevents proper funding and RnD to properly push those advancements to production.
You can certainly try to use the power as much as possible, or sell the energy to a country with a deficit. But the problem is that you would still need to invest a lot of money to make sure the grid can handle the excess if you build renewables to cover 100% of the grid demand for now and in the future. Centralized fuel sources require much less grid changes because it flows from one place and spreads from there, so infrastructure only needs to be improved close to the source. Renewables as decentralized power sources requires the grid to be strengthened anywhere they are placed, and often that is not practical, both in financial costs and in the engineers it takes to actually do that.
Would it be preferable? Yes. Would it happen before we already need to be fully carbon neutral? Often not.
I'd refer you to my other post about the situation in my country. We have a small warehouse of a few football fields which stores the highest radioactivity of unusable nuclear fuel, and still has more than enough space for centuries. The rest of the fuel is simply re-used until it's effectively regular waste. The time to build two new nuclear reactors here also costs only about 10 years, not 20.
All of these things should happen regardless of nuclear progress. And they do happen. But again, building renewables isn't just about the price.