Earlier quoted context omitted.
Transmitting energy over long distances is way more difficult than you make it out to be: https://www.youtube.com/watch?v=7OpM_zKGE4o
It'd be expensive, but it's technically feasible. I'd also expect there's economies of scale involved; building a cable with twice the capacity doesn't cost twice as much; you might even just use the same cable and run it at a higher voltage.
So is nuclear fusion. You have provided no evidence or even argument that it is practical.
Proposing that you can compensate day night cycle with transmission is surely a joke, no infrastructure of such scale has ever been built.