2 September 2013
New Ngatamariki Station boosts Mighty River Power’s geothermal production, driving earnings growth
Mighty River Power today marked the completion and handover of its new 82MW Ngatamariki power station – expanding the
Company’s geothermal production to more than 40% of its total generation and contributing to strong earnings growth.
Mighty River Power’s Chief Executive, Doug Heffernan, said the plant near Taupo was completed within the $475 million
forecast detailed in the Company’s prospectus and had proven performance above design specifications in testing over the
past three months.
“We’re delighted with a project of this scale – the largest of its type in the world – to see it successfully completed,
and with power output now expected to be 3MW (4%) higher than spec, which will be positive for the plant’s economics and
cash flow into the future. We also expect the project to come in slightly under the total cost forecast.”
Dr Heffernan said the new station would add close to 700GWh of annual electricity production, equivalent to the
electricity use of about 80,000 households. With the completion of the new Ngatamariki station, he said the Company now
had about 2,800GWh or 40% of its production coming from low operating cost renewable geothermal which “gives us
additional strength and resilience in our core business”.
“This reliability of geothermal, as a major component of our portfolio, is a distinctive competitive strength for us in
the New Zealand electricity market.”
“The completion of this project is an important strategic milestone for Mighty River Power, and the key driver of the
27% growth in Operating Earnings we’re forecasting this financial year (FY2014) above FY2013 results announced last
Mighty River Power’s GM Development, Mark Trigg, said the plant reached full capacity for the first time at the end of
June and had now successfully completed a continuous 30-day reliability run, enabling formal handover from the principal
contractor Ormat Technologies Inc.
The plant had produced more than 150GWh during commissioning, contributing to cash flow. With the official handover,
Ngatamariki has joined Mighty River Power’s operating portfolio and the generation revenue is now recognised as income
by Mighty River Power, rather than an offset to project cost.
Mr Trigg said: “This project has been more than a decade in the planning since the geothermal development rights over
the land were secured with our partners in 2000. Today, as our third major geothermal project completed since 2008, this
extends our successful track record in geothermal development in New Zealand.
“Particularly pleasing was the significant reduction in the Total Recordable Injury Frequency Rate (TRIFR) compared with
the previous project (Nga Awa Purua) and vindicates the focus that we have been applying across the Company to improving
Health and Safety outcomes.
“The completion of Ngatamariki also means the significant capital expenditure – of more than $1.4 billion – that the
Company has invested in geothermal assets in New Zealand over recent years is at an end, with Mighty River Power
unlikely to build a new large power station here in the next three to five years due to the current weak electricity
demand outlook,” Mr Trigg said.