As an European an unscheduled blackout is unheard of. We had the first loss of power( a few hours ) this year in a span of ten years due to maintenance.
Where I live we have a lot of large trees and during the Winter it's quite common that storms will topple the trees and cause power outages of a couple of hours to up to about 24 hours max. And for those who live in areas prone to ice storms I gather it can be quite a bit worse.