Bay of Plenty Region

Aniwhenua Scheme

Name: Lake Aniwhenua Scheme
Consent Holder: Bay of Plenty Energy Limited
Consent Duration and Review: *see report
Fish Passage: No

The 25MW Aniwhenua hydroelectric scheme in the eastern Bay of Plenty was commissioned in 1980 within 3 years of construction being commenced. The scheme incorporates a 2.2 km long headrace canal and two dams of moderate height, and is built in an area of ignimbrite rock and airfall volcanic ashes. Equipment includes radial and flap type flood gates, wheeled penstock intake closure gates and twin vertical shaft Francis turbines.

Matahine Dam
Rangitaiki River meeting Lake Aniwhenua

Matahina Scheme

Name: Matahina Dam
Consent Holder: Trust Power Limited
Consent Duration and Review: 31 August 2058
Fish Passage: Yes
Target: Longfin eel, shortfin eel, koaro, banded kokopu, short jaw kokopu, giant kokopu species and any other species considered appropriate.

Matahina Hydroelectric Power Scheme is on the Rangitaiki River, in the central North Island of New Zealand. The scheme was commissioned in 1967. Matahina’s 86 metre high earth dam is the largest of this type in the North Island. Average annual generation output is 290 GWh. There are plans to further assist fish passage at the dam.

Matahine Dam
Matahina Powerhouse

Kaimai Scheme

Name: Kaimai Hydro Electric Scheme
Consent Holder: Trust Power Limited
Consent Duration and Review: 1 December 2026
Fish Passage: No

Kaimai Hydroelectric Power Scheme is in the Wairoa River catchment, in the North Island of New Zealand. The scheme consists of four power stations: Lloyd Mandeno Station, Lower Mangapapa Station, Ruahihi Station and Kaimai 5 Station; with an average annual generation output of 167 GWh. At Kaimai 5 Station a diversion tunnel feeds Lake Mangaonui and there are extensive recreation areas around McLaren Falls.

Lake Mangapapa Dam overflowing in 1979, Photo David de la Hyde
Lake Mangapapa Dam overflowing in 1979



Report Prepared for
Wai Maori Trustee Limited
By LMK Consulting Ltd
10 October 2014

Download full report. (PDF - 1.4MB)




In April 2013, the Parliamentary Commissioner for the Environment released a report into the status of long-fin eel in New Zealand. This was followed up by an independent review from the Ministry for Primary Industries. These and other related documents can be found on our website. Click here.


Northland Region

Wairua Hydro Station

Waikato Region

Tongariro Power Scheme

Waikato Hydro Systems Consents

Bay of Plenty Region

Aniwhenua Scheme

Matahina Scheme

Kaimai Scheme

Taranaki Region

Motukawa Dam

Mangorie Dam

Patea Dam

Hawkes Bay Region

Lake Waikaremoana Power Scheme

Otago Region

Clyde Dam

Roxburgh Dam

Marlborough Region

Waihopai Schemes

Branch River Schemes

West Coast Region

Lake Wahapo

Canterbury Region

Canterbury Hydro Stations

Rakaia River

Lake Tekapo

Ohau River

Lake Pukaki

Lake Benmore Dam

Lake Waitaki (Aviemore) Dam

Lake Ohau

Transpower New Zealand Global Consent

Lake Coleridge

Grehan Stream