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...
The Government of New Zealand has taken a significant step forward in its renewable energy journey with the release of the national geothermal strategy titled From the Ground Up By: Robert Buluma A strategy to unlock New Zealand’s geothermal potential on March 17, 2026. This comprehensive plan, developed by the Ministry of Business, Innovation and Employment (MBIE), aims to dramatically expand the role of geothermal energy in the country's energy mix, regional development, and industrial sectors. At its core is an ambitious target: to double geothermal energy use by 2040. New Zealand is already a global leader in geothermal utilization. Geothermal resources currently supply around one-fifth of the nation's electricity, with installed capacity approaching or exceeding 1.3 GW in recent years. In 2024-2025 data, geothermal generation contributed roughly 8,741 GWh annually, representing about 18-20% of total electricity production. This makes it the second-largest renewable sou...