America. Let's say there is a nuclear attack, which is all to likely these days, even if the actual location of the hit is small there are ways they could potentially knock out electricity across the continent. If that happened, it could cause all sorts of grief for us. Mass panic, nuclear powerplants melting down, followed by a fun adventures with fallout. It could potentially be the sheer definition of terror with very few people actually dying from the bomb blast itself, and multiples of that amount dying in the following days, weeks, months, and even years. Of course we cannot say exactly what would happen in that event, but what I described is a small part of the general theory.

Also who knows what other events the future may bring us? Who could have foreseen this bee thing? I suppose there are other things that could render us without electricity.