You asked Tessa so here's my take :-)
Personally I don't think nuclear is a good solution. It takes ages to build (20 years is not unheard of), goes wildly over budget, then there's the costs that are never factored in properly like decommissioning. And yeah, waste storage.. How can anyone commit to storage for thousands of years and even fathom what the associated inflationary costs are. Imagine the people being alive a thousand years from now having to deal with huge amounts of still toxic waste from the 22st and 22nd centuries.
Nuclear fusion would be great. But it's been "just around the corner" for the last 4 decades.
I don't see any energy solution that will come close to providing the cost effective convenience of burning oil, certainly none that is going to save civilisation as we know it or pull billions of people out of poverty.
This will be a tiny and never to be repeated moment in history, where just for a few centuries, we weilded mind blowing amounts of energy like magicians and lived outside or the normal constraints of the natural world.