Australian Town to Run on Solar Power in 2 Years
AUSTRALIA: November 5, 2007
SYDNEY - A sun-drenched town in Australia's north hopes to use only solar
power in two years after being chosen as the site for a solar thermal power
station.
Remote Cloncurry, which boasts recording Australia's hottest day, would be
able to generate electricity on rare cloudy days and at night from the
station, which runs off heat stored in graphite blocks.
The Queensland state government said on Sunday it would build the A$7
million (US$6.5 million), 10-megawatt power station as part of a push to
make Cloncurry one of the first towns to rely on solar power alone.
"The town of Cloncurry has long claimed the title of having recorded
Australia's hottest day -- 53 degrees (Celsius) in the shade in 1889, so I
reckon we're on a winner," Queensland Premier Anna Bligh was quoted as
saying by Australian Associated Press.
Solar thermal power differs from photovoltaic panels that make power
directly.
Instead, 8,000 mirrors will reflect sunlight onto graphite blocks. Water
will be pumped through the blocks to generate steam which generates
electricity via turbines.
Heat stored in the graphite produces steam well after the sun goes down,
allowing electricity generators to keep running at night.
The Queensland government said the station would deliver about 30 million
kilowatt hours of electricity a year, enough to power the entire town. It is
expected to be running by early 2010.
Australia and the United States have refused to ratify the Kyoto Protocol,
which sets binding targets for carbon pollution by developed countries.
Australian Prime Minister John Howard says any global agreement must include
big developing nations such as China and India, whose burgeoning economies
have led to rapid growth in carbon dioxide emissions, which are blamed for
global warming.
Australia's greenhouse gas emissions are among the world's highest
per-capita and the government prefers to focus on energy efficiency and
technology to limit carbon emissions.
REUTERS NEWS SERVICE
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