EARTH - A quiet breakthrough in geothermal power tech

Not a lot of startups tackle the field of geothermal power, which entails tapping into hot rocks deep in the Earth to produce energy and electricity. That's because it can be an expensive proposition, and can require extensive permits and environmental reports. But a rare startup called AltaRock Energy has recently delivered a promising breakthrough that it says can lead to the commercialization of its next-generation geothermal technology. AltaR ...

http://gigaom.com/2013/01/24/a-quiet-breakthrough-in-geothermal-power-