the view from heti

Houston geothermal exec shares why she sees the potential of geothermal power

Sarah Jewett, vice president of strategy at Fervo Energy, shares how Fervo has been able to leverage proven oil and gas technologies, such as horizontal drilling, and more, to pave the way toward a low-carbon energy future. Photo via HETI

Houston-based Fervo Energy, the leader in enhanced geothermal technology, is accelerating decarbonization by bringing 24/7 carbon-free electricity to the grid.

Fervo’s mission is to leverage geoscience innovations to accelerate the world’s transition to sustainable energy. Fervo continues to demonstrate the commercial viability and scalability of enhanced geothermal energy, which uses breakthrough techniques to harness heat from the earth and generate continuous electricity.

Sarah Jewett, VP of Strategy at Fervo, shared more about how Fervo has been able to leverage proven oil and gas technologies, such as horizontal drilling, well stimulation, and fiber-optic sensing, to pave the way toward a low-carbon energy future.

Q: Can you share your background and tell us a little about your career prior to joining Fervo Energy?

I’m a mechanical engineer by training. My career started in oil field services after working internships in hydropower and wind power. Transition technologies, such as enhanced geothermal systems, require a wide range of technical and operational innovations. When I joined Fervo Energy, I knew I was with the right team to accomplish the massive mission of addressing climate change.

Q: What are some of the challenges Fervo encounters as a carbon-free energy company?

There are a lot of misperceptions around the geothermal industry. Traditional geothermal wells require highly specific subsurface conditions—the right heat, fluid saturation, and permeability. Because of this, it has been challenging to scale geothermal energy.

Our enhanced geothermal technology is a game changer, but our technical demonstrations are capital intensive. So, one of our biggest ongoing challenges is to execute our projects flawlessly, building a new reputation centered around scalability and affordability.

In addition, when we started, we faced a somewhat uncertain market. Today, as companies look for innovative ways to decarbonize operations, geothermal has become one of the hottest renewables on the market.

Q: You’re now in your seventh year as a company. What are some of the major milestones that have contributed to the success of the business?

Fervo recently completed the 30-day well test on Project Red, a first-of-its-kind geothermal pilot project, located in northern Nevada. We confirmed record production of 24/7 carbon-free enhanced geothermal energy, which established Project Red as the most productive enhanced geothermal system in history.

This success validated the commercial viability of Fervo’s geothermal well construction and monitoring technologies, which leverage drilling and production innovations from modern oil and gas development. Since then, we’ve broken ground on our Cape Station project, a near-field development in southwest Utah that is set to deliver 400 MW of power by 2028.

Q: Tell us about your vision for the future. What is Fervo Energy focused on in 2024?

We’re ushering in a new era of geothermal energy. Our approach to enhanced geothermal energy is no longer a theoretical concept—it’s a proven solution for meeting the world’s growing demand for sustainable energy. We’re building modular power facilities and we’re able to scale them quickly. In 2024, we’re focused on finding the capital we need to achieve the scale we want. That will be key to unlocking much more growth.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

Learn more about Fervo Energy and its pioneering approach to next-generation geothermal energy.

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A View From HETI

The Carbon to Value Initiative has named its fifth cohort of global startups. Photo courtesy of Greentown Labs

The Carbon to Value Initiative (C2V Initiative)—a collaboration between Greentown Labs, NYU Tandon School of Engineering's Urban Future Lab and Fraunhofer USA—has announced 10 startup participants to join the fifth cohort of its carbontech accelerator.

The six-month accelerator aims to help cleantech startups advance their commercialization efforts through access to the C2V Initiative’s Carbontech Leadership Council (CLC). The invitation-only council consists of corporate and nonprofit leaders from organizations like Shell, TotalEnergies, XPRIZE, L’Oréal and others who “foster commercialization opportunities and identify avenues for technology validation, testing, and demonstration,” according to a release from Greentown

“The No. 1 reason startups engage with Greentown is to find customers, grow their businesses, and accelerate impact—and the Carbon to Value Initiative delivers exactly that,” Georgina Campbell Flatter, CEO of Greentown, said in a news release. “It’s a powerful example of how meaningful engagement between entrepreneurs and industry turns innovation into commercial traction.”

The C2V Initiative received more than 100 applications from 33 countries, representing a variety of carbontech innovations. The 10 startups chosen for the 2025 fifth cohort include:

  • Cambridge, Massachusetts-based Sora Fuel, which integrates direct-air capture with direct conversion of the captured carbon into syngas for production of sustainable aviation fuel
  • Brooklyn-based Arbon, which develops a humidity-swing carbon-capture solution by capturing CO₂ from the air or point-source without heat or pressure
  • New York-based Cella Mineral Storage, which works to develop subsurface mineralization technology with integrated software, enabling new ways to sequester CO2 underground
  • Germany-based ICODOS, which helps transform emissions into value through a point-source carbon capture and methanol synthesis process in a single, modularized system
  • Vancouver-based Lite-1, which uses advanced biomanufacturing processes to produce circular colourants for use in textiles, cosmetics and food
  • London-based Mission Zero Technologies, which has developed and deployed an electrified, direct-air carbon capture solution that employs both liquid-adsorption and electrochemical technologies
  • Kenya-based Octavia Carbon, which develops a solid-adsorption-based, direct-air carbon capture solution that utilizes geothermal heat
  • California-based Rushnu, which combines point-source carbon capture with chemical production, turning salt and CO2 into chlorine-based chemicals and minerals
  • Brooklyn-based Turnover Labs, which develops modular electrolyzers that transform raw, industrial CO2 emissions into chemical building blocks, without capture or purification
  • Ontario-based Universal Matter, which develops a Flash Joule Heating process that converts carbon waste such as end-of-life plastics, tires or industrial waste into graphene

The C2V Initiative is based on Greentown Go, Greentown’s open-innovation program. The C2V Initiative has supported 35 startups that have raised over $600 million in follow-on funding.

Read about the 2024 cohort here.

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