Tongariro Power Scheme

The Tongariro Power Scheme has a catchment area of more than 2600 km² in the North Island's central volcanic plateau.

The 361.8MW hydro scheme comprises three power stations – Rangipo (120MW, underground), Tokaanu (240MW) and Mangaio (1.8MW).

The 361.8MW Tongariro Power Scheme 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.

Read a full description of the Tongariro Power Scheme

Scheme overview video

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