Why not just build power plants that are designed to provide power to the grid? I’m not sure what problem you are trying to solve here.
The problem is that all of the companies attempting to build commercial nuclear power plants in the West are massive fuckups and have demonstrated again and again and again and again that they cannot build a nuclear power plant remotely close to a reasonable timeframe and cost. Costs and schedules go 3x the original claims, if not longer. Every. Single. Time. They are simply not economically viable.
There's only one commercial nuclear power build attempt in the West which was
started in the last 30 years which has actually produced power. It's still not working right, but at least it's produced power. Occasionally.
https://en.wikipedia.org/wiki/Olkiluoto_Nuclear_Power_PlantApplication for Unit 3 licensing was filed in 2000. Construction started in 2005, with a promise of completion by 2009. First criticality was 2021 and since then it's been a mess of shutdowns and repairs. This isn't even a greenfield site - they already have 2 reactors!
We're into 2023 at this point. They pinky swear it will really be ready next month.
If we want new nuclear power, we need to look to other avenues, such as small modular reactors - or the only Western nukes which are actually being built at a reasonable pace these days. The US Navy.
Realistically? We need to focus on solar, wind (onshore and offshore), battery, geothermal, improved transmission, flexible demand (like most EV charging) and such.