Mighty River Power will pay an increased dividend of 13.5 cents a share after this morning reporting a sharp increase in operating earnings and a $97 million lift in full year profit to $212 million.
The partially privatised former state owned enterprise said its result was above initial public offering forecasts of early last year.
It said earnings from its expanded range of geothermal power stations - which make up about 42 per cent of MRP's generation - contributed to the result and it was able to benefit from its differentiated retail brands amid intense competition.
The lift in earnings came in spite of the year to June being marked by the worst hydro inflows into the Waikato River hydro catchment in the company's history.
Operating earnings (EBITDAF) grew 29 per cent to $504 million.