Almost 70 homes in Hartlepool were plunged into darkness following a powercut.
Properties in Westbrooke Avenue in the town were affected last night.
The power supply went off shortly after 9pm and returned just after 11pm.
A spokeswoman for Northern Powergrid said: "68 customers were affected in the TS25 area.
"Customers' supply went off at about 9.20pm and was restored at 11.05pm.
"It was caused by a fault on our network.
"We thank our customers for their patience while our teams work to restore their power as quickly as possible."