>>60904623
You could produce multiple GWs with a single reactor, and if you can repurpose existing reactors there's already 50+ operating in the world.
Nuclear reactors generally aren't profitable to run, so while there may not be a significant change in price NOW in the future countries like China will eventually overproduce (like they do in every sector) once it becomes a viable revenue stream.
Hell even countries that were previously Anti-Nuclear would probably start building plants.