Only upside I see out of this huge demand for electricity -- hopefully nuclear will clear the deck on using coal, gas and diesel. If we can build and operate nuclear again we can level our long term cost of power. Combined with renewables its a good combo.
Other than that - power prices will always be derivative to the price of natural gas.
Nuclear is only a fraction as expensive as the regulations around it. My company has a division that deals with the nuclear industry, and I really cannot overstate how incredibly intense they are.
Imagine your company issued laptops and required 14 different "live scanner" security apps running with twice daily full system scans. Now be a productive dev on that system. Would you be surprised if every project runs far over budget and far over timeline?