Hot rock water drill could reduce cost of geothermal energy
Posted: 21 May 2010, 05:47
The Guardian - 19/05/10
A novel drill that is inspired by a jet engine and uses super-heated water to carve through rock could help make clean energy from underground rocks more economically viable, according to its backers at Google.
Potter Drilling is part-funded by Google.org - the internet search giant's philanthropic arm - and wants to use its technology to develop geothermal energy, which involves tapping the energy from hot rocks deep in the Earth.
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