MEDIA RELEASE
07 July 2011

Mighty River Power Announces Further Lift in Earnings Guidance for FY2011

Mighty River Power today issued an improved earnings (EBITDAF) guidance of $435 million-$450 million. The Company previously announced an increased guidance in March this year from $391 million to $420 million-$435 million.

Mighty River Power Chief Financial Officer, William Meek, said today’s revised forecast (for the financial year to 30 June 2011) was impacted by decisions to defer some maintenance on existing geothermal fields and hydro plants in New Zealand to the next financial year, along with positive gains in a number of business areas.

ENDS