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About Us

GTherm, Inc. is dedicated to advancing geothermal technology in order to improve the efficiency of harvesting the earth’s energy, reduce the overall cost and timeframe of power plant implementation and diminish further the potential of any environmental impact.

GTherm’s portfolio of patent-pending technologies eliminates many of the limiting factors of current water-based Enhanced Geothermal Systems.

GTherm’s technology utilizes widely available ‘dry hot rock’ geothermal energy, requires very little water, creates no water or air pollution, produces renewable power with a zero carbon footprint and has a very limited visual impact. GTherm technology can be utilized to inexpensively produce a consistent supply of clean, reliable electricity.

The Promise and Challenges of Geothermal Power

Because it represents the only alternative for clean, base load generation of electricity, geothermal power is a highly-desirable form of renewable energy. The earth’s heat is plentiful. The amount of heat contained in just the first two miles (3km) of the Earth’s crust below the continents could supply enough energy to meet the world’s consumption requirements for approximately 100,000 years (EPRI, 2010). Geothermal is a vast, untapped resource; and as innovations in technology unlock its potential, the growth of geothermal power is expected to be exponential.

Until the 1980s, the generation of electricity from geothermal heat was limited to locations containing naturally-occurring, superheated steam and/or water to drive steam turbines. Since the 1980s, a technology called “Enhanced Geothermal Systems” (EGS) has been developed as a way to extract geothermal heat energy from areas without naturally-occurring, superheated steam or water. EGS consists of the injection of large quantities of water into the bedrock of a geothermal resource and the extraction of the superheated return water to power steam turbines. Most of the geothermal power plants developed around the world in the last 30 years have relied on first-generation EGS technology.

Despite the initial promise of EGS geothermal power, its application is limited by several negative environmental impacts which include the following:

• Requirement for large quantities of injection water
• Pollution of ground water
• Disruption of national hydrology
• Bedrock hydrofacking can stimulate seismic disturbances
• High maintenance costs due to scaling and corrosion of pipes
• Reduction of brine flow due to concentration of sediment

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