ALPHAXIOMS Geothermal News & Energy Research

Mercury New Zealand' s recent milestone at the Ngā Tamariki Geothermal Station marks a significant advancement in the country's push toward a sustainable, renewable energy future.  By :  Robert Buluma On March 17, 2026, Mercury officially opened the fifth generation unit at the station near Taupō, following the project's announcement in 2023, groundbreaking in 2024, and remarkably swift completion in under two years. This $220 million expansion enhances New Zealand's renewable energy capacity at a time when electricity demand is rising due to electrification trends, population growth, and economic needs. Background on Ngā Tamariki Geothermal Station Located about 17 km northeast of Taupō in the central North Island, Ngā Tamariki has been operational since 2013. The station harnesses the region's abundant geothermal resources from the Taupō Volcanic Zone, one of the world's most active geothermal areas. Prior to the expansion, it featured four generation units w...

Mercury NZ Ngā Tamariki Expansion: Fifth Geothermal Unit to Deliver 46 MW of Clean Power by 2026 By: Robert Buluma Mercury Ngā Tamariki Fifth Unit: +46 MW Geothermal Power NZ Mercury NZ is building a fifth geothermal unit at Ngā Tamariki Power Station near Taupō. Adding 46 MW net (total 132 MW), enough to power all Tauranga homes or Christchurch residential load. Mercury NZ Launches Ngā Tamariki Expansion – New Zealand’s Next Major Renewable Energy Project In May 2024, Mercury NZ turned the first sod on one of the most significant geothermal developments in the country this decade: the Ngā Tamariki Expansion Project. This ambitious project will see a fifth generating unit added to the existing four-unit Ngā Tamariki Power Station, located 20 kilometres northeast of Taupō in the heart of New Zealand’s geothermal wonderland. When completed in 2026, the new unit will deliver an additional 46 MW of net renewable capacity, lifting the station’s total output from 86 MW to an impressive 13...