Mighty River Power is pinning a “solid” interim result of $73.9 million net profit on a diversified generation strategy and geothermal development.

It expects another “solid performance” for its full year result although forecasting a lower result than last year.

The state-owned power generator reported an above-expected ebitdaf (earnings before net interest expense, income tax, depreciation, amortisation and financial instruments) of $191.2 million.