You’re quite far out of your depth here.
The science has concluded that renewables decrease electricity costs. But comparing regions the ones that went straight into renewables were the ones with nearly 100% fossil fuel usage which were desperate for alternatives.
They started with expensive electricity and fossil fuels still often are the marginal producer in their systems.
And don’t get me started on investing in nuclear power taking 20 years to build and delivering $170-250/MWh electricity today. That is pure lunacy to propose.
Not only that Solar changes the local climate because they absorbed and radiate heat as well as taking vast amounts of land that is stripped of life. Wind drives whales insane on the coast and kills massive amounts of birds.
If we can crack fusion then the only fuels used are helium and such. Much cleaner and they work at night and whin the air is still.
Fusion is great but it's still years away at least from a single viable commercial reactor. We need solutions to be deployed ten years ago. Waiting for Godot isn't an option.