More than 1600 properties in the Western Bay of Plenty are without power and a tree being blown into power lines has been blamed.
The 1604 homes in the Lower Kaimai are experiencing the outage.
According to the PowerCo website, there are 753 Omanawa without power and 851properties in Whakamarama.
The power was cut about 4pm for both sites and expected to be turned back on at 9pm.