Welcome to Trustpower. The browser that you are currently using is not supported by this site. For best results please upgrade your browser.
Retrieving Data

Highbank Pumping Station

View Map
  • Highbank Pumping Station
  • Kuratau Station
  • Mangahao Power Station
  • Mokauiti Power Station
  • Piriaka Power Station
  • Wairere Power Station
  • Branch River Power Scheme
  • Bream Bay Power Station
  • Cobb Power Station
  • Coleridge Power Station
  • Dillmans Power Scheme
  • Esk Power Scheme
  • Highbank Power Scheme
  • Arnold Power Station
  • Hinemaiaia Power Scheme
  • Kaimai Power Scheme
  • Mangorei Power Station
  • Matahina Power Scheme
  • Kaniere Forks/McKays Creek Power Scheme
  • Motukawa Power Scheme
  • Paerau/Patearoa Power Stations
  • Patea Power Scheme
  • Wahapo Power Scheme
  • Waihopai Power Station
  • Waipori Power Scheme
  • Wheao and Flaxy Power Scheme
  • 1910
  • 1920
  • 1930
  • 1940
  • 1950
  • 1960
  • 1970
  • 1980
  • 1990
  • 2000
  • 2010
  • 2020

Highbank Pumping Station began supplying irrigation water to the Rangitata Diversion Race in 2010, helping local farms to remain productive in dry months. The pumping station stands alongside our existing Highbank Power Station, in the South Island of New Zealand. It is the first of a number of exciting enhancement projects we plan for the Canterbury region.

At a Glance


Commissioned 2010


Annual output

Highbank Pumping Station is the result of a partnership between Trustpower, Barrhill Chertsey Irrigation and Electricity Ashburton. Water is extracted from the Rakaia River, into a short canal, alongside the existing Highbank Power Station tailrace to the new pumping station. It’s then piped across the tailrace, up the existing penstock and into the Rangitata Diversion Race for delivery to farmers. 

Six pumps have been installed, each capable of pumping one cubic metre a second (m3/s) of water. We envisage the pumping station will eventually be capable of supplying the Rangitata Diversion Race with 8m3/s of irrigation water. 

The pumps were supplied by KSB, one of the world’s largest pump makers. They are driven by 1.55 MW Siemens motors. A sophisticated starting system ensures the local electricity distribution network is not negatively impacted. 

One challenge of this project was making and installing a large bifurcation or ‘tee’ to connect the new pipeline to the original penstock. We created a huge air chamber (40 cubic metres) to accommodate the varying pressures in the pipeline and penstock. The solution has performed well.

Our stations