U.S. Geothermal Inc., a renewable energy company focused on the production of electricity from geothermal energy, owns and operates geothermal power plants at Raft River, Idaho and San Emidio, Nevada, and is developing the Neal Hot Springs project in Oregon. The company strives to create enhanced value for stakeholders while addressing America’s domestic energy needs and promoting a clean environment.

Geothermal energy is energy recovered from the heat of the earth’s interior. Geothermal heat can appear in the form of volcanoes, hot springs and geysers. Classified as a renewable source of electricity, Geothermal energy is an established method of electrical power generation with 2,000 megawatts (MW) of installed capacity in the Western United States.

There are many benefits to utilizing geothermal energy. A geothermal power plant does not burn fuel; energy production is clean, and renewable. It is also a base load source; as a result, geothermal plants are designed to run

BOISE, IDAHO — (Marketwire) — 11/10/09 — U.S. Geothermal Inc. (TSX: GTH)(NYSE Amex: HTM), will host a telephone conference call for investors and analysts on Wednesday, November 11, 2009 at 4:30 a.m. EDT (2:30 p.m. MDT) to discuss the 2nd Quarter Financials, which were filed on November 9, 2009.

The conference call may be accessed by dialing (877) 407-8133 in Canada and the United States, or (201) 689-8040 internationally. A simultaneous webcast of the conference call will be provided through www.investorcalendar.com/IC/CEPage.asp?ID=152403.

U.S. Geothermal Inc., a renewable energy company focused on the production of electricity from geothermal energy, owns and operates geothermal power plants at Raft River, Idaho and San Emidio, Nevada, and is developing the Neal Hot Springs project in Oregon.

Please visit our Website at: www.usgeothermal.com

Contacts: U.S. Geothermal Inc. Saf Dhillon Investor Relations 866-687-7059 604-688-9895 (FAX) saf@usgeothermal.com

VANCOUVER, BRITISH COLUMBIA–(Marketwire – 10/22/09) – U.S. Geothermal Inc. (”U.S. Geothermal”) (TSX:GTH)(AMEX:HTM), a renewable energy company focused on the production and sale of electricity from geothermal energy, announced today that well NHS-5, the second full size production well at the Neal Hot Springs project located in eastern Oregon, was successfully completed on October 15.

NHS-5 encountered several lost circulation zones within the targeted horizon and intercepted a large aperture fracture at 2,796 feet resulting in a total loss of circulation. The well was completed to a depth of 2,896 feet. An initial 16 hour flow test completed using air lift produced fluid at a rate of 1,500 gallons per minute and resulted in a down hole flowing temperature of 286 degrees F (141 degrees C).

The reservoir-hosting fracture zone intersected in NHS-5 is 509 feet deeper in the geologic system than the large producing fracture intersected by NHS-1 which is

67 WALL STREET, New York – September 22, 2009 – The Wall Street Transcript has just published its Alternative Energy/Clean Energy/Power Generation/Utilities Report report offering a timely review of the sector to serious investors and industry executives. This 83 page feature contains expert industry commentary through in-depth interviews with public company CEOs, Equity Analysts and Money Managers. The full issue is available by calling (212) 952-7433 or via The Wall Street Transcript Online.

Topics covered: Long Term Perspective on Alternative Energy Industry — Leading Indicators for Alternative Energy Components Companies — Mergers and Acquisitions in the Alternative Energy Industry — Break Even Business Fundamentals for Carbon Free Energy Providers — Development of Carbon Free Energy Production Infrastructure — NAT GAS Act — New Players in the Alternative Energy Industry — Solar Power Cell Manufacturers Market Strategy — Demand Response for Raw Materials for Solar Cell Production — Alternative

BOISE, IDAHO–(Marketwire – 09/15/09) – U.S. Geothermal Inc. (TSX:GTH)(AMEX:HTM) (”U.S. Geothermal”), a renewable energy company focused on the production of electricity from geothermal energy, announced today that the U.S. Department of Energy (”DOE”) has formally awarded the Enhanced Geothermal Systems (”EGS”) grant that was announced on October 14, 2008. The Raft River EGS program now totals up to $10.21 million, with the DOE providing up to $7.39 million as part of the cost-sharing arrangement. The program is designed to perform a staged, thermal stimulation of an existing injection well to improve permeability within the geologic horizon that hosts the Raft River geothermal reservoir.

The program team is being led by the Energy & Geoscience Institute from the University of Utah. Team members APEX Petroleum Engineering Services, and HiPoint Reservoir Imaging are providing key technical service and contributions. U.S. Geothermal is providing “in kind” contributions to the program through the

US Geothermal is an energy company currently engaged in the development of geothermal power plants in Raft River, Idaho, and San Emidio, Nevada. The company uses geothermal energy to produce electricity. The Raft River project was recently awarded a $9 million energy grant from the United States Department of Energy.

Geothermal energy is a prolific source of clean, renewable energy, and the plants that harness it can be run emission-free 24 hours a day. It is for this reason, that it is a rapidly expanding sector of energy, valued as a $1.5 billion industry. Demand for sustainable, environmentally-friendly energy sources is on the rise, as the people everywhere become increasingly conscious of the long-term problems associated with fossil-fuel consumption.

Today, US Geothermal announced that it would be holding a public conference call to discuss its second quarter financial results, which are scheduled for filing on November 10th,