Houston clean hydrogen producer teams up with O&G for series of pilots

piling on pilots

Gold H2 has aligned itself with an oil and gas company, making its Black 2 Gold microbial technology available for the first time. Photo via cemvita.com

Gold H2, a Houston-based producer of clean hydrogen, is teaming up with a major U.S.-based oil and gas company as the first step in launching a 12-month series of pilot projects.

The tentative agreement with the unnamed oil and gas company kicks off the availability of the startup’s Black 2 Gold microbial technology. The technology underpins the startup’s biotech process for converting crude oil into proprietary Gold Hydrogen.

The cleantech startup plans to sign up several oil and gas companies for the pilot program. Gold H2 says it’s been in discussions with companies in North America, Latin America, India, Eastern Europe and the Middle East.

The pilot program is aimed at demonstrating how Gold H2’s technology can transform old oil wells into hydrogen-generating assets. Gold H2, a spinout of Houston-based biotech company Cemvita, says the technology is capable of producing hydrogen that’s cheaper and cleaner than ever before.

“This business model will reshape the traditional oil and gas industry landscape by further accelerating the clean energy transition and creating new economic opportunities in areas that were previously dismissed as unviable,” Gold H2 says in a news release.

The start of the Black 2 Gold demonstrations follows the recent hiring of oil and gas industry veteran Prabhdeep Singh Sekhon as CEO.

“With the proliferation of AI, growth of data centers, and a national boom in industrial manufacturing underway, affordable … carbon-free energy is more paramount than ever,” says Rayyan Islam, co-founder and general partner at venture capital firm 8090 Industries, an investor in Gold H2. “We’re investing in Gold H2, as we know they’ll play a pivotal role in unleashing a new dawn for energy abundance in partnership with the oil industry.”

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The pilot project is a cornerstone of an extended agreement between ExxonMobil Technology and Engineering and Danbury, Connecticut-based clean energy company FuelCell Energy. Photo via exxonmobil.be

ExxonMobil extends European fuel cell pilot project

next step

The Esso fuel business of Spring-based ExxonMobil is forging ahead with a pilot project at its Dutch refinery in Rotterdam to test technology aimed at reducing carbon emissions and simultaneously generating electricity and hydrogen.

ExxonMobil and FuelCell announced the pilot project in 2023.

“The unique advantage of this technology is that it not only captures CO2 but also produces low-carbon power, heat, and hydrogen as co-products,” Geoff Richardson, senior vice president of ExxonMobil Low Carbon Solutions, said last year.

The Rotterdam facility, which opened in 1960, will be the first location in the world to test the technology. The technology eventually could be rolled out at additional ExxonMobil sites.

The European Union is among the funders of the pilot project. FuelCell is making carbonate fuel cells for the project at its manufacturing plant in Torrington, Connecticut.

The extended agreement enables FuelCell to incorporate elements of the jointly developed technology into carbon capture products currently being marketed to customers. ExxonMobil and FuelCell are working on formalizing an arrangement for selling the new technology.

“The technology, which captures carbon while simultaneously generating electricity and hydrogen, could improve the economics of carbon capture and could potentially lower the barrier to broader adoption of carbon capture in the marketplace,” according to a FuelCell news release.

FuelCell says its 10-year partnership with ExxonMobil has focused on developing technology that reduces carbon emissions from emission-intensive sectors while generating electricity and hydrogen in the process — “something that no other fuel cell technology or conventional absorption systems can do.”

Houston startup Sage Geosystems released the results of its pilot at a Shell-drilled oil well in the Rio Grande Valley’s Starr County. Photo via sagegeosystems.com

Houston-based geothermal energy startup releases promising results of Texas pilot

hot off the press

As it seeks an additional $30 million in series A funding, Houston startup Sage Geosystems has released promising results from a test of its technology for underground storage of geothermal energy.

Sage says the pilot project, conducted at a Shell-drilled oil well in the Rio Grande Valley’s Starr County, showed the company’s long-term energy storage can compete on a cost basis with lithium-ion battery storage, hydropower storage, and natural gas-powered peaker plants. Peaker plants supply power during periods of peak energy demand.

Furthermore, Sage’s geothermal technology will provide more power capacity at half the cost of other advanced geothermal systems, the company says.

Sage’s storage system retrofits oil and gas wells with the company’s geothermal technology. But the company says its technology “can be deployed virtually anywhere.”

The system relies on mechanical storage instead of battery storage. In mechanical storage, heat, water, or air works in tandem with compressors, turbines, and other machinery. By contrast, battery storage depends on chemistry to get the job done.

“We have cracked the code to provide the perfect complement to renewable energy. … The opportunities for our energy storage to provide power are significant — from remote mining operations to data centers to solving energy poverty in remote locations,” former Shell executive Cindy Taff, CEO of Sage, says in a September 12 news release.

Sage says its storage capacity can be connected to existing power grids, or it can develop microgrids that harness stored energy.

An August 2023 article in The New York Times explained that Sage “is pursuing fracked wells that act as batteries. When there’s surplus electricity on the grid, water gets pumped into the well. In times of need, pressure and heat in the fractures pushes water back up, delivering energy.”

The pilot project, a joint venture between Sage and the Bureau of Economic Ecology at the University of Texas at Austin, was performed as part of a feasibility study financed by the Air Force. Now that the test results are in, Sage plans to build a prototype geothermal project at the Air Force’s Ellington Field Joint Reserve Base in Houston.

Sage says another feasibility study is underway in the Middle East in partnership with an unnamed oil and gas company.

Founded in 2020, Sage plans to raise another $30 million to accompany its previous series A funding.

The Virya climate fund and Houston-based drilling contractor Nabors Industries helped finance the pilot project in Starr County.

Last year, Sage announced it received an undisclosed amount of equity from Houston-based Ignis H2 Energy, a geothermal exploration and development company, and Dutch energy company Geolog International. Also last year, Sage said Nabors and Virya had teamed up for a $12 million investment in the startup.

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Greentown Labs names first head of philanthropy

new hire

Greentown Labs has named its first-ever head of philanthropy in an "all hands on deck" move to advance philanthropic support for climatetech ventures.

Stacey Harris will join the clean energy incubator and brings more than 15 years of experience to the role, having led major partnerships at organizations like Make-A-Wish International, Movember, Net Impact and the Greater Phoenix Economic Council, according to a release from Greentown.

Harris will be based out of Greentown's Boston-area incubator but will support both its Texas and Massachusetts locations. Greentown maintains headquarters in Houston and Somerville, Massachusetts.

“Stacey brings national reach, local roots, and the entrepreneurial spirit we need,” Georgina Campbell Flatter, CEO of Greentown, said in the release. “She understands that philanthropy isn’t just about raising funds—it’s about building a movement, sustaining an ecosystem, and accelerating change together.”

In her new role, Harris will be tasked with designing and leading a philanthropic strategy that aligns with Greentown's corporate partnerships.

The incubator said in the release that Harris's hire is coming at a "pivotal moment," and the organization is "calling for all hands on deck" to support the clean energy space. "This includes inspiring states and local governments to lean in, individuals and family offices to step up, foundations to mobilize resources, and industry to invest boldly," the release states.

"Philanthropy has the unique power to accelerate innovation where it matters most—by backing the people and ideas that can change the world,” Harris added in the release. “At Greentown, I see an incredible opportunity to partner with local communities in Massachusetts and Texas, while also mobilizing catalytic funds that fuel entrepreneurs globally. I’m energized to work across donors, foundations, and industry to ensure these founders have what they need to go further, faster—together.”

Harris is the latest in a series of new hires for Greentown.

Lawson Gow, founder of The Cannon co-working space and former managing partner at Helium Capital, was named Greentown's Head of Houston in July. Flatter was also named as the organization's new CEO in February, after Naheed Malik was named its new CFO in January.

Houston companies team up on $700M floating solar projects in Texas

float on

Diamond Infrastructure Solutions has given Third Pillar Solar exclusive rights to access Diamond’s Texas reservoirs for the possible launch of utility-scale floating solar installations. Both companies are based in the Houston area.

The potential investment in the floating solar project exceeds $700 million, and the project is expected to generate up to 500 megawatts of solar energy.

“Our agreement with Third Pillar marks a bold step forward in how we think about infrastructure and sustainability. By transforming underutilized water surfaces into clean energy assets, Diamond is advancing its commitment to innovation while delivering long-term value,” Ed Noack, CEO of Diamond Infrastructure Solutions, said in the release.

Dow Chemical Co. and a fund directed by Macquarie Asset Management announced the formation of Diamond in 2024. Dow holds a majority stake in Diamond, which owns Gulf Coast infrastructure used by Dow and other industrial customers at five locations in Texas and Louisiana.

The solar installations are scheduled to be built and in operation by the end of the decade.

The agreement between Diamond and Three Pillar “demonstrates the growing appetite for utility-scale energy solutions and highlights how floating solar can enhance and transform the value of existing infrastructure, all while providing cost-competitive energy, preserving agricultural land, reducing evaporation losses, and existing out of public view,” Jaimeet Gulati, CEO of Third Pillar, added in the realease.

Founded in 2022 and majority-owned by renewable energy investor Glentra Capital, Third Pillar develops, owns and operates floating photovoltaic solar installations. The installations are designed to float in places such as wastewater lagoons, reclaimed sand and gravel pits and industrial reservoirs. Third Pillar’s development pipeline contains more than 60 projects.

Rice Alliance names participants in 22th annual energy forum

where to be

The Rice Alliance for Technology and Entrepreneurship has named the 100 energy technology ventures that will convene next month at the 22nd annual Rice Alliance Energy Tech Venture Forum, as part of the second annual Houston Energy and Climate Startup Week.

Half of the startups, which hail from nine countries and 19 states, will pitch during the event, which culminates in the annual recognition of the “Most Promising Companies." The 12 companies that were named to Class 5 of the Rice Alliance Clean Energy Accelerator will present during Demo Day to wrap up their 10-week program.

In addition to pitches, the event will also host keynotes from Arjun Murti, partner of energy macro and policy at Veriten, and Susan Schofer, partner at HAX and chief science officer at SOSV. Panels will focus on corporate innovation and institutional venture capital. Attendees can also participate in one-on-one office hours with founders and investors.

The forum will take place Sept. 18 at Rice University’s Jones Graduate School of Business.

The 2025 presenting companies include:

Aeromine Technologies
AlumaPower
Ammobia
Aqua-Cell Energy
Aquafortus
Aquora Biosystems
Arculus Solutions
Artemis Production Solutions
AtmoSpark Technologies
AtoMe
Badwater Alchemy
C+UP
Carbon Blade
Circul8 Energy & Environment
CO2 Lock
Direct C
DirectH2
Ekona Power
Exum Instruments
Fathom Storage
Flyscan Systems
Geokiln Energy Innovation
Glint Solar
Hive Autonomy
Horne Technologies
Hydrogenious LOHC Maritime
Innowind Energy Solutions
Iron IQ
Kewazo
LiNova Energy
Lukera Energy
Lydian
Mcatalysis
Metal Light
Mithril Minerals
Moment Energy
Moonshot Hydrogen
Muon Vision
PolyQor
Polystyvert dba UpSolv
Precision Additive
RapiCure Solutions
Resollant
SiriNor
Skyven Technologies
Sperra
SpiroPak
Sweetch Energy
Teverra
Utility Global
Xplorobot

Companies participating in office hours include:

Active Surfaces
Advanced Reactor Technologies
Advanced Thermovoltaic Systems
Ai Driller
Airbridge
Airworks Compressors
Austere Environmental
Brint Tech
CarbonX Solutions
Cavern Energy Storage
Celadyne Technologies
CERT Systems
CubeNexus
Deep Anchor Solutions
Ellexco
Emerald Battery Labs
Equipt.ai
FAST Metals
FieldMesh
FlowCellutions
Fluidsdata
GrapheneTX
GS VORTEX SYSTEMS
Installer
Kanin Energy
MacroCycle Technologies
Modular MOPU
NANOBORNE
NetForwards
Oxylus Energy
PetroBricks
PHNXX
RASMAG Energy
RedShift Energy
RENASYS
RenewCO2
Resonantia Diagnostics
Respire Energy
Safety Radar
SeaStock
Secant Fuel
SolGrapH
Stratos Perception
Terraflow Energy
Think Energy Holdings
Turnover Labs
Utiltyx
Zenthos Energy

Find information about the full day of events here, or click here to register.

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