I'd bet you know far more about it than i do. Assuming solar gets super super cheap, well, then we can do a lot. like suffer the losses of long distance transmission lines. Arizona supplying California might be feasible if the solar panels are cheap enough. Parent poster seems to be implying a few bucks a panel, rather than thousands or even hundreds of dollars.
>Arizona supplying California might be feasible if the solar panels are cheap enough.
For 1000 kV AC transmission line from Arizona to California, transmission losses should certainly be smaller than 5%, even less for DC. Arizona is pretty close to California when it comes to electricity transmission.