The top land purchasers, by amount spent, were TGP Development ($2.93m), Magma Energy ($2.42m) and Ormat Technologies ($1.53m).
Installed capacity makes big advances
US installed geothermal capacity has grown substantially in the past three years, to reach nearly 3.2 gigawatts (GW).
15 October 2009 22:00 GMT
Updated
25 November 2012 10:09 GMT
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