Raise your hand if you want a nuclear power plant built within 50 miles of your home. Now raise your hand if you think at least 50% of your neighbors would be even remotely okay with that. Huh. Not very many hands in the air.
It's just not gonna happen. Solar, tidal, hydro, dogs-on-treadmills... sure. You can get a fair amount of people on board with that. But once the word "nuclear" is tossed out there, the NIMBYs will come out in full, vehement, voting force, and probably some of the BANANAs, too. I think we probably need to accept that getting a new nuclear power plant anywhere in the US is mostly a non-starter. Most people probably like the idea, as long as it is at least 500 miles from their home.
I think we can add some other alternative power sources, but we also need to focus on ways to use less energy, which means encouraging and subsidizing new technologies--both their development and their adoption.