That's a great idea where it works, but that only works where you can connect to a place with lots of water, sustainable replenishment from evaporative loss, AND a suitableplace to store it to run a "hydroelectric battery." Then removing all that earth potentially removes lots of agricultural ground from production. Not to mention the geological and environmental problems you have to overcome. Nevermind the NIMBYs.Lack of modern nuclear is just that they dont make the buisness case, its to costly per produced kwh.
- if one would use the money for a new nuclear site for building energy storage like pumped hydro you would have a buisness case that works with solar and wind, the two chaepest electrical producers.
You can dig a lot of large lakes for the money. I think that energy storage is the next place to use substities to get it going, wind and solar are alredy working on an commercial scale.