Sage Geosystems is taking its collaboration with the U.S. Department of Defense to another level as the U.S. Navy explores geothermal baseload power generation.

The Houston-based geothermal and energy storage company on Oct. 3 said it was selected to conduct geothermal project development initiatives at Naval Air Station (NAS) in Corpus Christi, Texas. By harnessing heat from belowground to generate energy, microgrids could be created for use at the base, reducing its dependence on the utility grid while providing continuous power supply on-site.

“As we advance our Geopressured Geothermal Systems, we see tremendous potential to not only provide carbon-free power, but also strengthen the operational capabilities of U.S. military installations in an increasingly digital and electric world,” Sage Geosystems CEO Cindy Taff said.


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Sage’s geopressured geothermal systems collect energy from pressurized water stored underground for both short- and long-duration periods. That energy, which leverages hot dry rock, can be dispatched when needed to the grid.

The company said it plans to work in partnership with the Department of Defense Innovation Unit and the Environmental Security Technology Certification Program to assess geothermal technologies and the integration of hybrid energy solutions such as energy storage, thermal use and dispatchable power for the U.S. Navy.

The expanded collaboration with the U.S. Department of Defense follows Sage-led geothermal initiatives at Fort Bliss and the Ellington Field Joint Reserve Base where geothermal energy solutions are being analyzed.