The Big Super Bowl Blackout Was Caused By a Boringly Faulty RelayEric Limer2/08/13 10:25am36EditPromoteGo to permalink Beyoncé? The Illuminati? Aliens? Nothing so interesting caused the big Super Bowl blackout last Sunday. According to Entergy Corp, which was in charge of power at the event, the outage was due to the boring failure of a boring electrical relay device.