The Omanaia substation refurbishment programme to improve the reliability of the power supply to the Southern Hokianga region will kick off at the beginning of October 2018.

The first phase of works will extend the substation switch room and will be completed by Christmas. It is part of Top Energy’s 10-year $260 million investment to improve the reliability of the power supply in the Far North.

Top Energy Chief Executive Russell Shaw says the extension will help reduce the duration and scale of outages as supply can be back-fed from other parts of the network while crews isolate and restore power.

“Switchgear is used to de-energize equipment to allow work to be done and to clear faults downstream, thereby reducing the impact and inconvenience to our customers.”

Once this phase is completed, refurbishment of the substation yard and reconfiguration of the high voltage 33kV lines will get underway early in 2019.

Mr Shaw says that to reduce the local impact of these works, two 1MW diesel generators will be installed at Omanaia over the summer so that power can be maintained to 1600 customers on the south west side of the Hokianga while the substation and 33kV line are upgraded.

Once this project is finished the generators, along with additional generators yet to be bought, will be relocated to Kaitaia where they will be used to secure supply to the northern network which supplies 10,000 customers.


For more information contact: Philippa White, 021 2418740