More than 500 homes and businesses have been left without power in Consett.
Northern Powergrid have shared an update saying that while 951 people have had their power restored, 536 are still without in the DH8 postcode.
The outage has been caused by 'an unexpected problem with the cables or equipment' and it is thought supplies will be restored by 3.30pm on Boxing Day.
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A yellow weather warning for snow was in place for parts of the North East including Consett, on Boxing Day morning.
More snow is expected in parts of County Durham and Northumberland over the next few days as temperatures plummet.
Northern Powergrid said: "Our team are working hard to restore your power as quickly as possible. The power cut affecting your property has been caused by an unexpected problem with the cables or equipment that serve your area.
"If you need to report an emergency, please call 105."
