We’ve got 11,500 great reasons to make a connection. You’re one of them.

We're building a new $43m electricity connection to the National Grid to keep South Waikato businesses and homes - like yours - reliably powered now and in the future.

Your connection will provide a new supply line for the 11,500 customers in the region who currently rely on a single transmission line at Karāpiro for their electricity supply.

It also means there'll be enough supply to meet demand as the region continues to grow.

A new connection...

The new connection will link the Transpower Substation at Arapuni with our Powerco Substation at Putāruru.

It's an 110kV connection made up of a mix of underground cables and overhead lines.

We've also upgraded the substation equipment at Putāruru in preparation for the new connection.

…and more

This project is just one part of a $80m investment in South Waikato to ensure we’re powering your region now and in the future. Here’s what else we’ve been working on from Matamata to Tokoroa:


  • New underground cable linking Matamata’s two substations.
  • Upgrade Tower Road and Lake Road Substations.
  • New underground cable to Te Poi.


  • Build a new underground cable to improve reliability of supply.


  • Build a new underground cable between Putāruru and Tirau Substations.
  • New transformer.


  • New underground cables for Domain, Overdale and Horahora Roads.
  • Substation upgrade.


  • Replaced end-of-life underground cable.
  • Substation upgrade.

Construction is underway

You’ll see us, and our contractors Northpower working from the Powerco Substation on Arapuni Road just outside Putāruru, through to the bottom of Powerhouse Road in Arapuni.

You may have already seen Northpower setting up the site office and getting things ready.

Construction goes from January 2022 to March 2023.

We’re building in road reserve, and on farmland in some places.

That means traffic management will be in place as needed – please take care and be patient.

COVID-19 protocols are in place

COVID-19 protocols are in place onsite to protect crews and customers. That means Northpower crews will be:

  • Working in bubbles.
  • Keeping a 1 metre distance from people within work bubbles where practicable.
  • Keeping a 2 metre distance from the public and other work bubbles.
  • Providing evidence of vaccination status where required.
  • Scanning into work sites using the Government COVID tracer app.
  • Wearing a mask when social distancing is not practicable. 

Find out more

We’re pretty chuffed about the new connection and we’ve been talking about it for a while. Find out more about the project journey.


Learn more