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November 11, 2021

Nga Awa Purua Geothermal Power Plant, New Zealand

By Carmen

Nga Awa Purua Geothermal Power Plant is a 140MW geothermal power project. It is located in Waikato, New Zealand. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in March 2010.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Geothermal 140 140 Active Waikato, New Zealand Mercury NZ


The project was developed by Mercury NZ. Mercury NZ and Tauhara North No.2 Trust are currently owning the project having ownership stake of 65% and 35% respectively.

The geothermal plant is of triple flash type. The geothermal site has in total 10 number of wells. Out of this 6 are production wells and remaining 4 are injection wells. Nga Awa Purua Geothermal Power Plant runs at a temperature of 270 Degree Celsius.

The project generates 1,100GWh electricity and supplies enough clean energy to power 140,000 households. The project cost is $430m.

Development Status

The project got commissioned in March 2010.

Contractors Involved

Sumitomo was selected to render EPC services for the geothermal power project.

Fuji Electric was selected as the steam turbine supplier for the geothermal power project.

About Mercury NZ

Mercury NZ Ltd (Mercury), formerly Mighty River Power Ltd, is an integrated power company which generates, retails, and trades electricity. It produces power from hydro and geothermal sources. The company operates various power projects in South and North Islands. Mercury retails energy to homes, businesses and industrial customers across the country under GLOBUG and Bosco brands. It also provides advanced metering infrastructure and data services. In consonance with its shift to renewable sources, the company converted the majority of its vehicle fleet to electric or plug-in hybrid. The company has operational presence in Chile, Germany, Peru, the UK and Ireland. Mercury is headquartered in Auckland, New Zealand.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

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