Nuclear definitely has a place in the overall plan. As does wind, solar, geothermal, tidal, etc.
Technology is ever evolving and the possibilities are out there.
One way to do solar; instead of huge solar farms, place solar panels on the roofs of homes in the sun belt. You get a vast reduction in transfer lines as well as the clean energy.
Compressed natural gas needs heavy tanks to contain it. Like oxygen or scuba air. It's not like propane in that respect.
It is compressed to about 3000lbs psi.