ESB Networks says 1,320 homes had power cut again around 10pm; and they will have power restored by 1.30am.
It is the latest in a series of outages which have affected homes in the north and west of the county.
Some of the power cuts lasted a few seconds, with other homes cut off for more than an hour.
The latest power cuts are affection people in Milford, Kilmacrennan, Glenswilly and parts of Letterkenny.