the worst thing is that, places where electricity is very cheap, the infrastructure is very hard/expensive/inaccessible...
...and vice-versa...
there're some little exception***
That's very true indeed. And IMO it is better to seek for cheap electricity (or ways to make it cheaper) in developed counties with good infrastructure than to struggle solving various problems arising in undeveloped countries where the electricity is cheap.
Of course there are some exceptions but in general I'd suggest to avoid countries where you risk your life for getting cheaper electricity.