blackout
power cut BrE , also: power out , also: power outage AmE

On a downside a potential problem could be a power cut.

Students can continue their study without any power cut and internet issue.

Electricity is available with daily power cuts, similar to the rest of the country.

While being too young to vote then I remember the year well, with its strikes and power cuts.

Don't you remember the 2008 power cuts which affected half a million people?

Because there was a power cut, and the lights went out.

Will its systems still work in the event of a power cut?

What happens if/when the power cuts come in future decades?

She thought of a power cut, unusual at night, and stood in wonder for a moment.

The lamps were out with the power cut, but you never knew when they might come on.