Houston-based Sage Geosystems announced the first close of $17 million round led by Chesapeake Energy Corp. Photo via sagegeosystems.com

A Houston geothermal startup has announced the close of its series A round of funding.

Houston-based Sage Geosystems announced the first close of $17 million round led by Chesapeake Energy Corp. The proceeds aim to fund its first commercial geopressured geothermal system facility, which will be built in Texas in Q4 of 2024. According to the company, the facility will be the first of its kind.

The venture is joined by technology investor Arch Meredith, Helium-3 Ventures and will include support from existing investors Virya, LLC, Nabors Industries Ltd., and Ignis Energy Inc.

“The first close of our Series A funding and our commercial facility are significant milestones in our mission to make geopressured geothermal system technologies a reality,” Cindy Taff, CEO of Sage Geosystems, says in a news release. “The success of our GGS technologies is not only critical to Sage Geosystems becoming post-revenue, but it is an essential step in accelerating the development of this proprietary geothermal baseload approach. This progress would not be possible without the ongoing support from our existing investors, and we look forward to continuing this work with our new investors.”

The 3-megawatt commercial facility will be called EarthStore and will use Sage’s technology that harvests energy from pressurized water from underground. The facility will be able to store energy — for short and long periods of time — and can be paired with intermittent renewable energy sources like wind and solar. It will also be able to provide baseload, dispatchable power, and inertia to the electric grid.

In 2023, Sage Geosystems debuted the EarthStore system in a full-scale commercial pilot project in Texas. The pilot produced 200 kilowatt for more than 18 hours, 1 megawatt for 30 minutes, and generated electricity with Pelton turbines. The system had a water loss of less than 2 percent and a round-trip efficiency (RTE) of 70-75.

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This article originally ran on InnovationMap.

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Nominate Houston's energy trailblazers for the 2025 Innovation Awards

Awards Season

Calling all Houston energy innovators: The Houston Innovation Awards return this fall to celebrate the best and brightest in the Houston innovation ecosystem, and that includes those leading the energy transition.

Presented by InnovationMap, the fifth annual Houston Innovation Awards will take place November 5 at TMC Helix Park.

The awards program will honor the top startups and innovators in Houston across 10 categories, and we're asking you to nominate the most deserving Houston innovators and innovative companies, including those in the energy transition sector.

This year's categories are:

  • Minority-founded Business, honoring an innovative startup founded or co-founded by BIPOC or LGBTQ+ representation.
  • Female-founded Business, honoring an innovative startup founded or co-founded by a woman.
  • Energy Transition Business, honoring an innovative startup providing a solution within renewables, climatetech, clean energy, alternative materials, circular economy, and beyond.
  • Health Tech Business, honoring an innovative startup within the health and medical technology sectors.
  • Deep Tech Business, honoring an innovative startup providing technology solutions based on substantial scientific or engineering challenges, including those in the AI, robotics, and space sectors.
  • Startup of the Year (People's Choice), honoring a startup celebrating a recent milestone or success. The winner will be selected by the community via an interactive voting experience.
  • Scaleup of the Year, honoring an innovative later-stage startup that's recently reached a significant milestone in company growth.
  • Incubator/Accelerator of the Year, honoring a local incubator or accelerator that is championing and fueling the growth of Houston startups.
  • Mentor of the Year, honoring an individual who dedicates their time and expertise to guide and support budding entrepreneurs.
  • Trailblazer, honoring an innovator who's made a lasting impact on the Houston innovation community.

Nominations may be made on behalf of yourself, your organization, and other leaders and institutions in the local innovation scene. The nomination period closes on August 31, so don't delay — nominate today at this link, or fill out the embedded form below.

A panel of esteemed judges will review the nominations, and determine the finalists and winners. Finalists will be unveiled on InnovationMap.com on September 30, and the 2025 Houston Innovation Awards winners will be announced live at an event on November 5.

Tickets will go on sale this fall. Stay tuned for that announcement.

Interested in Innovation Awards sponsorship opportunities? Please contact sales@innovationmap.com.

UH launches latest micro-credential program focused on energy risks

coming soon

UH Energy at the University of Houston will launch a new micro-credential program this fall focused on risks associated with today's changing energy landscape.

The new self-paced, hybrid program, known as Managing Non-Technical Risks in Energy, is geared towards energy professionals and those who aspire to work in the industry. Enrollment must be completed by Sept. 15 to participate.

According to UH, it will equip participants with "tools, strategies, and real-world insights needed to lead confidently" as they face pressure to meet increased energy demand while also operating under sustainable guidelines.

The program will be led by expert instructors, including:


  • Suryanarayanan Radhakrishnan, Managing Director of UH Energy
  • Amy Mifflin, Principal Consultant and Partner at Sustrio Inc.
  • Chris Angelides, Honorary Consul of The Republic of Cyprus to Texas, Managing Director at Ernst & Young LLP
  • Carolina Ortega, Vice President, Sustainability and Communications at Milestone Environmental Services
  • Krish (Ravi) Ravishankar, Senior Director ESG Analytics & Reporting, Sustainability, Worldwide Environmental Affairs at Oxy

Participants can earn up to three "badges" through the program. Each badge consists of two modules, which can be completed virtually and take about 10 hours to complete over four weeks.

Each module will also include one in-person engagement session that will last about two hours.

The three badges include:


  • Badge 1: Managing Environmental and Social Risks and Impacts
  • Badge 2: Frameworks, Standards, and Implementation
  • Badge 3: Advanced Applications

Badges can be earned individually or as a series of three, and participants must complete assessments to earn each badge.

Badge 1 Module 1 will start on Sept. 15, followed by Badge 1 Module 2 on Oct. 20. Find more information here.