Essential Energy will cut the power off to more than 4600 residents in the wider Uralla and Walcha areas for a few hours overnight, between September 20 and 21.

Essential Energy confirmed affected homes and businesses have been notified of the plans.

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The company's local operations manager Paul McWilliam said crews will complete a number of projects during the outage.

"The catalyst for the planned power outage is to relocate a power pole near the TransGrid substation in Armidale, so that they can complete upgrade work at their facility," he said.

"To minimise the number of planned power outages affecting customers, crews will also use the outage to complete other work on the electricity network."

The outage is scheduled to start at 10:30pm on Sunday, September 20 and finish at 3:30am on Monday, September 21.

The project is dependent on suitable weather conditions and may be postponed if conditions are poor.

Affected towns:

Essential Engergy thanked customers for their understanding.

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