Annual census of electricity utilities shows Americans experienced more power outages than ever last year.
Counting down some biggest blackouts the world has ever seen including electrical interruptions that left hundreds of millions of people in the dark.
California pre-emptively cuts power to millions of people to try and prevent the spread of devastating wildfires.
More than 30 million people across Northeastern USA and Canada in the dark for up to 13 hours following transmission line failure near Niagara Falls.
The Northeastern Blackout of August 2003 left 55 million people across eight states and parts of Canada without electricity.
Huge solar storm sends the Québec power grid offline in 90 seconds, leaving nine million residents without electricity for up to nine hours.