[hvb2]

It's hard to define 'better'

Nuclear has significant downsides besides the waste and proliferation risks.

You wouldn't want to build a grid on just nuclear.

Let's assume that city takes 1.2MWh at its peak every day. That would mean you need to be able to supply that. So you build a nuclear plant producing 1.2MWh of energy.

Now you have the argument against renewables (the sun doesn't always shine) in reverse. The city doesn't always need that peak power. And nuclear is the slowest of all power sources to tune up and down in terms of output.

Nuclear for base load makes a lot of sense as it'll always be fully utilized. But nuclear to power a grid 100% doesn't exist anywhere for a reason either.