BHP Billiton

New Power Station for Western Australia Iron Ore

Press Release   •   Nov 17, 2011 10:20 GMT

BHP Billiton today approved development of its Yarnima Power Station to secure future power supply for its Western Australia Iron Ore mining operations in the Pilbara.

BHP Billiton will build, own, and operate the combined cycle gas turbine (CCGT) power
station, to be located in Newman, which will deliver 190 megawatts to replace supply from
the existing Newman Power Station. The capital cost of the project is expected to be
US$597 million (BHP Billiton share US$507 million)1.

The power station will include gas turbines equipped with heat recovery steam generators to
capture waste heat for the generation of additional power. This will minimise gas usage while
increasing thermal efficiency and reducing carbon emissions. In the event of a gas service
interruption, the plant has also been configured to allow normal operations to continue using
diesel fuel.

Power supply from this project will be available in the first half of calendar year 2014.

BHP Billiton President Iron Ore, Ian Ashby, said "Yarnima Power Station will power our
existing operations and provide a platform for further mine development. By employing state
of the art technology, this power station will also increase our carbon efficiency and promote
long term energy sustainability."