A tree branch fallen onto power lines by strong winds cut power to 750 households in south Orange on Thursday.
Essential Energy crews were dispatched shortly before 11am to attend to the supply interruption and restored electricity by the afternoon.
South eastern regional manager Phillip Green said attending crews carried out a patrol of the powerline to investigate the cause.
"Our teams on the ground found a tree branch blown into powerlines on Forest Road, just south of the hospital," he said.
"Essential Energy's safety protection equipment is designed to interrupt power supply if something comes into contact with the powerlines, so in this instance the network operated as it should."
Mr Green said it was Essential Energy's priority to ensure that the area was made safe so vegetation can be removed before network repairs can commence.
"Once the vegetation was removed, crews commenced a progressive restoration of power supplies, restoring a majority of the customers by 1:30pm while the remaining customers were back on by 2pm," he said.
Essential Energy reminds customers to be cautious of powerlines and electrical hazards on windy days and to remain at least eight metres away from fallen wires and anything in contact with them.
To report a fallen powerline, or supply interruption, contact Essential Energy immediately on 13 20 80.
"We apologise to the community for this interruption and assure them that crews worked as quickly and safely as possible to get the power back on," Mr Green said.