There are still losses in those lines that can be around 10%, high voltage transmission lines use a lot of copper and can have high cost, they can be a point of failure, they can start forest fires, and if we actually build full scale nuclear system their price will drop down extensively. An MIT study estimated $66/MWh is achievable with a full build out which is already cheaper than solar plus storage, So when you factor in the additional cost of transmission lines nuclear just makes more sense.

But for places like LA that see huge electricity transients during the day as peak sun correlates to peak AC nothing is better than solar and while I haven’t done extensive research on off shore wind everything I have heard about it is incredible where it works.

Nuclear is for places like Seattle that for large chunks of the year gets negligible sun so the amount of storage you need to maintain full power is impracticable and the losses for sending electricity there from sunny places is unsustainable

I definitely don’t think nuclear should be our first or even second choice but it should be an option that fits its niche because our number one priority needs to be reducing our fossil fuel usage and wasting a bunch of material in places that aren’t a good fit is irresponsible