Genesis Energy has reported strong flexibility in its Huntly portfolio, which can now flex by around 1,000MW a day to accommodate wind and hydro volatility.
The company said preparations for winter 2025 remained a key focus, due to below-average hydrology and the continued decline in national gas supply.
Huntly Unit 1 is scheduled to return from service in June, enabling three Rankine units to be available for this winter.
The coal stockpile at Huntly has been rebuilt to 474,000 tonnes, with a further 735,000t of future-dated coal expected to arrive between April 17 and the end of August 2025.
Chief executive Malcolm Johns said negotiations with industry participants to maintain a third Huntly Rankine unit until around 2035 were ongoing.
The activation of power purchase agreements for geothermal energy from Tauhara and solar power from Lauriston resulted in an increase in electricity supply from PPAs to 229 gigawatt hours in the quarter.
Other highlights included the retail sector's strategy to simplify product offerings and improve customer service, as well as the successful completion of site works for the first stage of Genesis' battery project at Huntly Power Station.
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