Rock me up — energy from stones?
I wonder how much water they would need?
» smh.com.au – The Sydney Morning Herald: “Searing heat from the core of the earth may be harnessed in South Australia to become a potentially massive, clean energy source.
In South Australia’s remote Cooper Basin, a source of natural gas for more than 30 years, the hottest and deepest well drilled in Australia has been sunk 4.5 kms into the earth’s surface, where temperatures reach 270C.
‘This is the hottest spot on earth outside volcanoes,’ says Bertus de Graaf, managing director of Geodynamics, the publicly listed company that hopes to turn energy from the earth’s core into commercial power.
The $2.7 billion South Australian retailer Origin Energy announced yesterday it would become a cornerstone investor in the project, taking about a 20 per cent share of the company and joining Metasource, a wholly owned subsidiary of Woodside Petroleum, as a major investor.”