Tongariro Power Scheme

Plant scheme worker

Tongariro Power Scheme

The 361.8MW Tongariro Power scheme comprises three hydro power stations – Rangipo (120MW, underground), Tokaanu (240MW) and Mangaio (1.8MW) and has a catchment area of more than 2600 km2 in the North Island's central volcanic plateau.

The scheme gathers water from the mountains of the central plateau through Eastern and Western Diversions of the Scheme. The water passes through a series of pipes, lakes, canals and tunnels to the Mangaio, Tokaanu and Rangipo hydro power stations before entering Lake Taupo.

Tongariro power scheme

Ngāti Tūwharetoa Genesis Energy Committee (NT-GEC)

The Ngāti Tūwharetoa Genesis Energy Committee was formed after an agreement was reached between the Tūwharetoa Māori Trust Board (on behalf of nga hapū o Ngāti Tūwharetoa) and Genesis Energy, in 2000.

The purpose of this agreement is to mitigate the impacts of the ongoing operation of the Tongariro Power Scheme (TPS) on Ngāti Tūwharetoa, and establish a forum whereby a meaningful, positive and balanced working relationship is developed. This agreement came about after many years of direct consultation with hapū that involved discussions around complex and difficult issues.

Tūwharetoa Māori Trust Board

The committee is managed by Tūwharetoa Māori Trust Board. Please refer to the links below for more information or contact Raina Ferris-Breterton (project co-ordinator) on 07 386 8832 or email [email protected]

Tongariro Power Scheme

Year commissioned

Tokaanu - 1973
Rangipo - 1983
Mangaio – 2008  

Total capacity

Tokaanu - 240MW
Rangipo - 120MW
Mangaio - 1.8MW  

Generation units

Tokaanu - Four 60MW units
Rangipo - Two 60MW units
Mangaio - One 1.8MW unit