Nearly 300 homes in the Ballynure area of Co Antrim, near Ballyclare, have been affected by a power cut on Christmas Day.
It is understood a series of outages have affected the area in recent weeks.
NIE has said the latest was due to “equipment failure”.
The power went off for those affected just before 1.45pm and the supply was expected to be affected until approximately 5pm.
However, the fault was located and repairs got underway, with the issue seeming to be resolved just after 3.30pm, according to the Powercheck website.