Trees and lines

Trees and lines

Understand your responsibility around trees close to power lines.

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Line ownership

Line ownership

Do you know which part of the electricity line you own?

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Our network spans 4,500 kilometres of overhead and underground electricity lines and cables. It services over 34,000 power consumers in the Far North region from northern Hūkerenui to Cape Reinga.


Apart from the three main population centres of Kaitaia, Kerikeri and Kaikohe, much of the region’s terrain is rugged and sparsely populated.

Built largely during the ‘60s and ‘70s, the network’s capacity has experienced significant demand increases in recent years, particularly on the fast-growing Eastern seaboard. It is also constantly under threat by fast-growing vegetation, encouraged by the warmer average temperatures and abundant rainfall typical of the region.


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Capacity and reliability investment

Under the current network development plan, we have invested over $185million in improving our electricity network. This has increased capacity in Kerikeri, upgraded our sub-transmission network, and provided a new substation in Kaeo and emergency generation in Kaitaia, Taipa, Omanaia and Pukenui.

Over the next 10 years, a further $226million investment is planned to improve the safety, security, and reliability of our electricity supply in the Far North.

  • Upgrading the Wiroa substation 33kV to 110kV
  • A new submarine cable to the Russell peninsula gives the area an alternative electricity supply route.
  • 11kV Feeder protection automation and interconnection for faster outage resolution.
  • Ongoing upgrades and maintenance of the 33kV and 11kV networks. Future-proofing our network to accommodate the growth in distributed renewable generation and electric vehicle charging.

The majority of the development work will be conducted by Top Energy’s Contracting Services division, which h continues to provide high levels of service to our customers.

Rooftop photovoltaic generation is on the increase in the Far North. In fact, the region currently has the highest penetration of network-connected rooftop photovoltaic generation in the country, with more than 12MW of solar generation connected to our network. This represents 2,000 customers and continues to grow monthly. 

Latest news

Published 14/05/24

A bright new future for electricity in the Far North

He āpōpō pai mō te hiko i Te Hiku o Te Ika

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Published 02/05/24

Top Energy Far North Science Fair Ignites Future Scientist: Sunny Perry Wins Prime Minister's Prize!

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Published 16/04/24

Keeping trees out of powerlines

Kia tiakina ngā taura hiko i ngā rākau

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Published 12/03/24

Your locally owned lines company and power generator

Ko tō kamupene raina ā-rohe, ā, ko te punahiko hoki.

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Work near power lines

Work near power lines

Get approval before working next to power lines to keep yourself safe and avoid costly network damage.

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Get connected

Get connected

Connect your new build to electricity.

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