Over 1,900 customers are currently without electricity in the Carrickfergus area.
It is understood 1,939 customers are affected.
Commenting on the incident, a Northern Ireland Electricity Networks (NIEN) spokesperson said: “We have logged a fault for this area and will be assigning a repair team as soon as possible.”
The outage occurred at approximately 4:40pm.
The estimated restoration time is 7:45pm on Tuesday, February 21.