If you would have a high voltage DC transmission line already, linking the dessert and the clouded cities far away, then it makes sense. I think it is worth building them, but it is a big investment. Many lines are proposed, some already build, but with the current US administration I don't think it is a priority.

So decentral is the current way to go.

That is the current state in the US

https://en.wikipedia.org/wiki/List_of_HVDC_projects#/map/3