You can't ship solar power to remote places that need power in the way you would a barrel of oil, or coal. We also don't have batteries that are up to the job of storing power.
It shouldn't be a surprise that they are the same family, solar is really the only electricity generation solution that scales down nicely for remote places.
Solar fails at high power density applications, like airplanes, not remote ones. I suppose it also fails at "remote and north of the arctic circle/south of the antarctic circle" ones, but that's a pretty tiny rounding error of energy usage.
On the contrary. Shipping diesel to remote Alaskan villages is so incredibly expensive, even with subsidies, that they're seeing a boom in solar power even that far north.