Translation guide
A power failure is when the electricity supply is interrupted. In Japanese, the most common word is 停電 (ていでん). There are also related terms for blackouts, blown fuses, and circuit breakers tripping.
To say that the electricity has gone out, or there is a power cut.
The standard word for a power outage or blackout. Can be used as a noun or with する to mean 'the power goes out'.
There was a power failure yesterday.
The air conditioner stopped because of the power outage.
Literally 'the electricity stops'. A natural, casual way to say the power went out.
The power just went out.
Verb form meaning 'to have a power outage' or 'the power goes out'.
This area often has power outages.
To refer to a power outage that is planned in advance, such as for maintenance.
Specifically a planned or scheduled power outage, often used for rolling blackouts or maintenance.
A planned power outage will be carried out tomorrow.
To describe a widespread power failure affecting a large area.
To say that the power went out in a specific part of a building because a fuse blew or a circuit breaker tripped.
停電 refers to a general power outage, often affecting a whole area. ブレーカーが落ちる is used when a circuit breaker trips inside a building, affecting only part of that building.
The English phrase 'power failure' is not used in Japanese. Always use 停電 or a related expression.
A blackout occurred, causing a widespread power failure.