First supercritical geothermal site chosen

Land within Rotokawa Geothermal Reservoir in the Taupō Volcanic Zone has been selected as a preferred site for New Zealand’s first supercritical geothermal exploration, with design work already underway to develop the first well.

The Rotokawa site was selected following extensive geological and geophysical study by Earth Sciences New Zealand, and risk assessments to confirm its suitability.

A Memorandum of Understanding has been signed between Tauhara North No.2 Trust, the Ministry of Business, Innovation and Employment, and Mercury NZ which operates the Rotokawa geothermal power station, to explore the potential of supercritical geothermal energy at the site. Earth Sciences NZ is contributing technical and scientific expertise.

As part of the work, a multi-disciplinary design team comprising local and international experts, is also being assembled to lead work across regulatory approvals, design, risk assessment, geoscientific modelling, engineering, procurement, drilling and asset management.