Volunteers from Kerikeri Fire Brigade carried out traffic control and cut the battery cables in the truck and chipper, owned by a Waimate North-based company, to reduce the risk of fire.
The crash caused brief outages in central Kerikeri, with power cut entirely to 65 households on Pa Rd, Inlet Rd and Keridale Lane.
Lines company Top Energy estimated it would take six hours to replace the pole and fully restore power.
Kerikeri police Constable Raymond Iwashita said neither alcohol nor speed was a factor, with the driver estimating he was travelling up the hill at about 20km/h when the crash occurred.
Enquiries were continuing, Iwashita said.