In the end it all comes down to this, we must learn to live with less.
And why would that be? Nuclear power technology has come a long way. The pebble bed reactors don't melt down on coolant loss. We can use thorium which does not yield weapons type fissionables. There is no reason we can't continue to have cheap electricity, except for the fact we elect idiots and crooks and frauds.
In the end, we are all dead, but that event doesn't need a lot of planning. It's the time between now and then that we should be planning how to increase the number of nuke plants and keep electricity prices low.