You should define “most locations”, because in my opinion that term does not include an entire continent, Africa, where power blackouts are more than common (that is where the power network had indeed arrived). You can also add an entire sub-continent, India, which granted doesn’t fare as bad as Africa but which also has its share of power cuts. And probably some parts of South America too, Venezuela most likely. This US- and Europe-centric view doesn’t do anyone any good.