Around 22,000 homes were left without power early this morning.
The widespread power outage affected properties in Brookfield, Otumoetai, Bellevue, Matua, Bethlehem, Te Puna and Katikati.
Network Operations Manager Phil Marsh says the power cut occurred around 1.20am, affecting 22,439.
He says supply was fully restored by around 2am.
“Powerco is investigating the cause of the outage.”