Desalination, yes. But we don't need nuclear to power it. A bunch of the energy can be pulled from the ocean through either tidal stream turbines or wave power. Renewables work well here because you don't need to store the energy you can just generate the power and immediately use it. No long-term storage. No long-distance transit. And (I assume) water use roughly tracks energy use.

The new generation geothermal is also something that we should be exploring in areas that aren't earthquake prone (which is basically everything from Denver to Las Vegas)