Nearly 5300 properties are without power near Batemans Bay as wild weather hits the region on Monday, July 27.
An Essential Energy spokesperson said 2300 properties were without power in parts of Batemans Bay, 1920 in Surf Beach and 1040 at Catalina.
Crews were working in challenging conditions to repair the outages and isolated incidents.
"Network protection equipment activated just before 8.30am to isolate supply to around 2300 customers in parts of Batemans Bay after detecting a fault on the electricity network," the spokesperson said.
"Crews have been dispatched to make necessary repairs to the network.
"1920 customers in the Surf Beach area lost supply at 5.46am.
"Crews are onsite making repairs to the overhead powerlines caused by vegetation coming into contact with the electricity network. A restoration time is unknown.
"Approximately 1040 customers in the Catalina area have been without supply since 8.57am.
"Crews are currently on site, working as quickly as safety allows to restore power to customers."
Operations Manager, South Eastern, Darren Basterfield, reminded the public to stay at least eight metres away from damaged or fallen powerlines.
"Always treat powerlines as live and remember that anything in contact with them, such as cars, trees or fences, can conduct electricity and pose a danger," Mr Basterfield said.
"We encourage residents to immediately report fallen powerlines, network damage, fires or trees contacting powerlines to Essential Energy on 13 20 80 or call Triple-0 if the situation is life threatening."
Customers are encouraged to report a power outage on 13 20 80 or visit essentialenergy.com.au/outages for updates.