Mighty River Power - Power Stations

Power Stations

Mighty River Power operates 13 power stations, all in Auckland, Waikato, and the Bay of Plenty. In total, the company has 1638 MW of generating capacity - composed of 1078 MW hydroelectric, 385 MW geothermal, and 175 MW natural gas.

Name Type Location Capacity
(MW)		 Annual generation
(average GWh)		 Commissioned Notes
Arapuni Hydroelectric Waikato River 196.7 805 1946
Aratiatia Hydroelectric Waikato River 78 330 1964
Atiamuri Hydroelectric Waikato River 84 289 1962
Karapiro Hydroelectric Waikato River 96 490 1948
Kawerau Geothermal Kawerau, Bay of Plenty 100 800 2008
Maraetai Hydroelectric Waikato River 360 885 1954, 1971
Mokai Geothermal northwest of Taupo 112 900 2000 Joint venture with Tuaropaki Trust
Nga Awa Purua Geothermal north of Taupo 140 1100 2010 Joint venture with Tauhara North No.2 Trust
World's largest geothermal turbine (147 MW rated)
Ohakuri Hydroelectric Waikato River 112 400 1962
Rotokawa Geothermal north of Taupo 33 210 1997 Joint venture with Tauhara North No.2 Trust
Southdown Gas CCGT cogeneration Southdown, Auckland 175 850 1998
Waipapa Hydroelectric Waikato River 51 242 1961
Whakamaru Hydroelectric Waikato River 100 494 1956

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