10% of US Power from Geothermal?

How underground ‘hot rocks’ could power America’s future from the Christian Science Monitor.

Of course this is a bit worrisome...

Dr. Blackwell says.

The potential for EGS is “vast,” he says. “I think that the MIT report is conservative if we really start to develop it.”

The big unknown is going to be cost. “And until we actually have a number of [EGS] systems operating,” he says, “we don’t know what the cost will be.”