This guy explains some of the problems with large-scale solar (including woke foriegn policy considerations)...
https://www.youtube.com/watch?v=7OpM_zKGE4o
There's a reason that governments and industry are doing expensive experimentation with space-based solar... because they know ground-based will not cut it.
Meanwhile, France is 70% nuclear... so 70% zero carbon grid power.
Now hypothetically you could overcome some of the limitations by using solar in remote desert locations to run air-to-liquid fuel production facilities, and then ship the fuel to other places. That would free up some of the limited solar capacity available in developed areas to feed urban grids. As it turns out we already have a robust global distribution system for liquid fuels. Liquid fuels will remain vital because there's no possible chemistry which will allow large vehicles to run on batteries over any sort of distance. Physics (electron valence stuff) is very clearly understood, so there's not going to be any order-of-magnitude "breakthroughs" in battery tech.
That said, solar should be used where practical, obviously.