major blackout, widespread power outage
トムはもうすぐ大停電が起こると信じている。
Tom believes that a major blackout will happen soon.
大停電事件の時どこに？
Where were you during the massive blackout?
— ブレードランナー 2049 (2017)
大停電のせいで破損したままです
It’s still damaged because of the major power outage.
大停電前だ
It’s before the major blackout.