Contracting Party: Earth Sciences New Zealand
Executive Committee Member
Chris Bromley
Senior Geophysicist
Earth Sciences New Zealand
New Zealand
Alternate Member
Anya Seward
Senior Geothermal Geophysicist
Earth Sciences New Zealand
New Zealand
New Zealand’s geothermal development relies on an assessed geothermal-power resource potential, which is 4 GWe (or 30 TWh/yr) from conventional convecting geothermal systems. These systems are hosted at depths of up to 4 km, mostly within the Taupo Volcanic Zone (TVZ). The deeper, hotter, and yet to be explored roots (3.5 – 6km) of this zone have been provisionally assessed by Bromley et al (2024) at ~3.5 GWe of additional potential. The New Zealand Government has allocated NZD 60 Million for a 6km exploratory well in the Rotokawa Geothermal System (Geoshot NZ)
The operational geothermal capacity as of the end of 2025 was 1292 MW, with annual generation of 9631 GWh. Annual direct use amounted to some 10 PJ, although it is noted that accurate direct use data is lacking.