Electricity generator and retailer Mighty River Power says its operating statistics for the three months ended June are in line with its prospectus forecasts.
Electricity sales volumes fell 2% on the same quarter last year, though sales for the year ended June were 5% higher.
The average price paid by Mighty River customers in the latest quarter was $126.27 per megawatt hour, and $117.28 for the year.
The company says electricity generation volumes were down 16% in the quarter and 9% for the year, largely due to lower hydro production because of lower-than-average water inflows into the Waikato catchments.
In April, the company recorded the lowest monthly hydro production on record, having started the quarter with storage at just 33% of the historical average.
Geothermal and gas-fired production was also down in the latest quarter.
Mighty River Power will release its annual results on 28 August.