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Mercury NZ Leverages Strong Hydro Conditions as New Geothermal Capacity Nears Completion

Story Highlights
  • Mercury NZ capitalised on very strong hydro inflows to lift generation, maintain high storage, and manage through lower wholesale power prices while modestly increasing wind output and completing planned geothermal maintenance.
  • The company continued to grow multi-product customer bundles and began commissioning its Ngā Tamariki OEC5 geothermal expansion, which will add significant renewable baseload capacity and support its competitive position in the New Zealand power market.
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Mercury NZ Leverages Strong Hydro Conditions as New Geothermal Capacity Nears Completion

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Mercury NZ ( (MGHTF) ) has provided an announcement.

Mercury NZ reported a strong operational quarter to 31 December 2025, driven by exceptionally high national hydrological inflows that pushed down wholesale spot electricity prices and enabled elevated hydro generation and storage levels. Waikato catchment inflows supported a 23% increase in hydro output and significant spill to maintain lake operating ranges, while wind generation rose modestly and geothermal output dipped due to a planned, on-budget outage at Ngā Awa Pūrua. On the retail side, commercial and industrial yields softened as contracts repriced to a lower forward curve and new long-term agreements took effect, but the company continued to grow its bundled offering, lifting customers with two or more products by 10% and adding 30,000 telco and mobile connections. Operationally, Mercury advanced its renewable growth strategy with commissioning of the Ngā Tamariki OEC5 geothermal expansion now under way and expected to be fully online by the end of the third quarter, adding 46 MW of net capacity and around 390 GWh of annual generation, reinforcing its position in reliable, renewable baseload supply and supporting future earnings potential despite current lower wholesale prices.

More about Mercury NZ

Mercury NZ is a New Zealand-based electricity generator and retailer with a portfolio spanning hydro, geothermal and wind generation. The company also offers bundled retail services including electricity, gas, telecommunications and mobile, with a strategy focused on multi-product customer relationships and value-added energy solutions across mass-market and commercial and industrial segments.

Find detailed analytics on MGHTF stock on TipRanks’ Stock Analysis page.

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