Power generation

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Arnold Power 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
Highbank Pumping 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

Trustpower generates electricity that powers numerous New Zealand homes and businesses. We have a strong focus on sustainable generation using hydroelectric power stations. We are continually seeking to expand our generation network, as well as make efficiencies, and minimise environmental impacts.

At a Glance

Generation sites:
38 in New Zealand

Generation staff:
110

% of all NZ electricity:
8% of New Zealand's hydro
capacity, which provides approximately
5% of New Zealand's electricity.

New Zealand

In New Zealand, we operate 38 hydro power stations across 19 hydroelectric power schemes. We have one diesel power station, which is occasionally used for transmission support.

Our focus has been on sustainable forms of generation and how we operate, right from when Trustpower was founded in 1993. Today, this focus supports the New Zealand Government’s long-term Energy Strategy, which commits to a target of 90% of New Zealand’s electricity supply coming from renewable sources by 2025. At present it’s around 70%.

Most simply, sustainability is a responsible approach, locally, nationally, and globally. You’ll find more about our Generation Philosophy and Environmental Policy here.

Our stations

Northland, NZ
- Bream Bay Power Station
  (2011) - PORT WHANGAREI
Bay of Plenty, NZ
- Kaimai Power Scheme
  (1972) - Wairoa River catchment
- Matahina Power Scheme
  (1967) Hydro - Rangitaiki River
- Wheao and Flaxy Power Scheme
  (1982) Hydro - RANGITAIKI RIVER
Central & Lower North Island, NZ
- Kuratau Station
  (1962) Hydro - LAKE KURATAU
- Mangahao Power Station
  (1924) Hydro - MANGAHAO RIVER
- Mokauiti Power Station
  (1963) Hydro - MOKAUITI STREAM
- Piriaka Power Station
  (1924) Hydro - Whanganui River
- Wairere Power Station
  (1925) Hydro - MOKAU RIVER
- Esk Power Scheme
  (2013) Hydro - ESK RIVER
- Hinemaiaia Power Scheme
  (1952) Hydro - Hinemaiaia River
- Mangorei Power Station
  (1931) Hydro - MANGAMAHOE STREAM
- Motukawa Power Scheme
  (1927) Hydro - Manganui/Waitara Rivers
- Patea Power Scheme
  (1984) Hydro - Lake Rotorangi
West Coast & Marlborough, NZ
- Arnold Power Station
  (1932) Hydro - Arnold River
- Branch River Power Scheme
  (1983) Hydro - Branch River
- Cobb Power Station
  (1944) Hydro - Takaka/Cobb Rivers
- Dillmans Power Scheme
  (1928) Hydro - Kawhaka Creek
- Kaniere Forks/McKays Creek Power Scheme
  (1911) Hydro - Kaniere Reservoir/River
- Wahapo Power Scheme
  (1960) Hydro - LAKE WAHAPO
- Waihopai Power Station
  (1927) Hydro - Waihopai River
Canterbury, NZ
- Coleridge Power Station
  (1914) Hydro - Coleridge Catchment
- Highbank Power Scheme
  (1982) Hydro - RAKAIA RIVER
- Highbank Pumping Station
  (2010) Hydro - RAKAIA RIVER
Otago & Southland, NZ
- Paerau/Patearoa Power Stations
  (1984) Hydro - Taieri River
- Waipori Power Scheme
  (1907) Hydro - WAIPORI RIVER