Short of someone coming up with Mr. Fusion, a mix of appropriate energy sources works best.

As just one example, in the Southwest, solar makes a lot of sense. Typically, when the sun is out is when the highest energy usage occurs, and it's exactly the boost the grid needs.

Still, there's nothing like a nuke pumping out 1,000 MW day and night, year after year, with nothing at all coming out of a smokestack.

Unfortunately, the time to start this program was when France did, back in the 70s. Given the amount of crap we have to go through to build even one plant, who knows how long it will take now.