To enable maintenance work to be safely completed on the Ulan electrical zone substation, a planned power outage will affect more than 1,000 homes and businesses from 11.45pm on Sunday, May 24, until 6am the following morning.
The planned power outage will affect customers in parts of Cooks Gap, Cooyal, Gulgong, Kains Flat, Mudgee, Stubbo, Ulan, Wollar and surrounding areas.
Operations manager Macquarie, Jamie Warren, said maintenance on the zone substation was required as equipment had failed, which would prevent the use of the backup transformer at the site if it was needed.
Zone substations convert high voltage electricity to a level, which can then be distributed to customers in the surrounding areas.
"There are two transformers at the Ulan zone substation so that if the main one becomes inoperative, crews can restore power to customers using the backup transformer," Mr Warren said.
"Significant planning has been undertaken to reduce the number of planned power outages required for these works to one, and to minimise its duration.
"Given the number of customers affected by the planned outage and the type of work being undertaken, on this occasion we have also been able to schedule the works to be completed overnight to minimise the overall inconvenience of the outage on the wider community.
"We thank customers for their understanding while we work to improve the power network for their community."
Essential Energy has developed operational protocols to ensure employee, contractor and community safety during the COVID-19 pandemic, including complying with all social distancing requirements.
Affected households and businesses have been notified.
For more information and a schedule for planned power outages, visit essentialenergy.com.au/outages-and-faults/power-outages