U.S. Geothermal Inc. (GTH) is engaged in the renewable green energy business. Through its subsidiary, U.S. Geothermal Inc., an Idaho corporation (Geo-Idaho), the Company is engaged in the acquisition, development and utilization of geothermal resources in the Western Region of the United States of America. As of march 31, 2009, the Company operates two power plants that include, Raft River Unit I in Idaho (through its joint venture with Raft River I Holdings, LLC, a subsidiary of Goldman Sachs) and a plant located in the San Emidio Desert in Nevada. GTH also has several other properties under development or exploration. Raft River Unit I commenced commercial operations on January 3, 2008. Raft River Unit I is selling between 9.6 and 11.7 megawatts of power to Idaho Power Company under a net 13 megawatt power purchase agreement (PPA), which expires in 2032.