Ausgrid has delivered a new transformer to the Newport zone substation in Sydney.
Safety crews escorted the truck carrying the 30-tonne transformer to ensure it could pass safely underneath local powerlines.
Chief operating officer Trevor Armstrong said the project is part of a wider program to replace infrastructure across the network.
“The old transformer was installed in 1966 and needed to be replaced as it had reached the end of its working life,” he said.
“Residents had also raised concerns about noise generated by the old equipment but once the new transformer is commissioned it will be much quieter.”
The Newport zone substation supplies electricity to 6500 local homes and businesses and can also provide back-up supply for other nearby areas including Avalon, Mona Vale and Careel Bay.