SunPower Corporation has reached an agreement to build a 505-kilowatt solar power installation for Horizon Power, a government-owned company providing power to remote and regional communities and resource operations in Western Australia.

The ground-mounted installation will be located on two sites in Marble Bar and Nullagine in the east Pilbara region of Western Australia and will be the largest solar tracking system in Australia.

SunPower will install solar tracking technology on the sites, which will maximise the solar plant's energy delivery, while optimising land use and reducing related costs.

SunPower solar panels will also be used to further enhance the production of the system. Construction is expected to be complete by September 2009.

SunPower previously announced that it is building a 305-kilowatt rooftop solar power system for the Crowne Plaza Hotel in Alice Springs, Northern Territory.