ExxonMobil, Worley to bring low-carbon hydrogen project to Baytown

big deal

The facility in Baytown is expected to produce 28.3 million cubic meters of low-carbon hydrogen daily. Photo via exxonmobil.com

ExxonMobil selected Australia-based engineering and professional services company Worley to provide engineering, procurement and construction services for a proposed hydrogen and ammonia production facility in Baytown, which is expected to have a production capacity of 1 billion cubic feet of blue hydrogen per day. ExxonMobil expects the facility will be the largest of its kind in the world.

“We are delighted to continue our strategic, global relationship with ExxonMobil in its execution of upcoming projects, particularly in delivering this EPC project on the US Gulf Coast, which contributes significantly to strengthening Worley’s backlog,” Chris Ashton, CEO of Worley, states, according to Offshore Energy.

The facility in Baytown is expected to produce 28.3 million cubic meters (1 billion cubic feet) of low-carbon hydrogen daily and nearly 1 million metric tonnes (more than 1 million tons) of ammonia per year, which will also capture more than 98 percent of the associated CO2 emissions.

The facility will leverage advanced carbon capture and storage technologies to reduce emissions associated with hydrogen production. ExxonMobile also said its carbon capture and storage system would be available for use by third-party CO2 emitters in the area.

A final investment decision is expected in 2025 , and an anticipated startup in 2029. “Blue” hydrogen is expected to be a top energy driver in 2025 according to global consultancy Wood Mackenzie who predicts that at least three large-scale blue hydrogen projects in the U.S will reach FID by next year.

The company hopes the new facility will help in creating U.S. jobs and supporting community development initiatives throughout the Houston area, and the state.

Houston global engineering firm McDermott will design a Louisiana project to produce millions of tons of clean ammonia. Image via cleanhydrogenworks.com

Houston group secures contract for major clean ammonia project in Louisiana

locked in

Houston-headquartered McDermott has received a new contract on a Louisiana clean ammonia project.

Clean energy development company Clean Hydrogen Works tapped McDermott for the front-end engineering and design contract for the Ascension Clean Energy Project. ACE — located in Ascension Parish, Louisiana — is jointly developed by CHW with strategic shareholders ExxonMobil, Mitsui O.S.K. Lines, and Hafnia and is expected to initially produce 2.4 million metric tons per annum of clean ammonia and expand to total 7.2 million metric tons per annum production down the road.

“We are thrilled to partner with McDermott, a company renowned for its extensive experience in mega module construction, demonstrated by a remarkable track record of on-time, on-budget execution of major energy and chemicals projects," Johnny Cook, CHW senior vice president of engineering, procurement, and construction, says in a news release. "This collaboration further strengthens key competitive advantages of our project, including being a mega module capable site with ready infrastructure access to gas, shipping and CCS, an unmatched shareholder base with expertise in CCS and maritime transport, and an experienced team with demonstrated success in executing mega module projects.”

The project has carbon capture and sequestration contracts with ExxonMobil and expects regulatory approvals by early 2025. ACE is expected to reach its final investment decision by late 2025 and start production in 2029. McDermott’s Houston office will lead the project with support from its Gurugram, India, office.

“This FEED award is testament to McDermott’s industry-leading mega-module delivery and installation expertise, and the breadth of our capabilities across the energy transition,” Rob Shaul, McDermott’s senior vice president of Low Carbon Solutions, adds. “Our integrated delivery model, with self-perform construction capabilities and portfolio of McDermott-owned, globally diversified, module fabrication yards means we can offer CHW a repeatable modular implementation solution that is expected to maximize value, reduce risk and provide quality assurance.”

Earlier this year, Houston-based Element Fuels completed the pre-construction phase of its hydrogen-powered clean fuels refinery and combined-cycle power plant in the Port of Brownsville — a project that McDermott is also providing FEED services for.

Also recently, McDermott secured an agreement to work on Canada's first commercial green hydrogen and ammonia production facility.

The University of Houston's new hydrogen program selected an Houston executive's team as the top project of the course. Photo via Getty Images

Houston energy leader wins hydrogen program's competition

top project

An executive from Houston-based SCS Technologies is celebrating a win from his time at the University of Houston Hydrogen Economy Program.

Cody Johnson, CEO of SCS Technologies, a provider of CO2 measurement systems, petroleum LACT units, and methane vapor recovery units, was on the winning 2024 Spring Capstone Project team for the UH program with the project, "Business Roadmap for Utilizing Hydrogen in Houston." The presentation outlined possible profits of $1.8 billion over the contract life with $180 million in green H2 investments.

The winning capstone project demonstrated the implementation of decarbonization processes. It included the enhancement of “capacity utilization in existing industrial hydrogen production along the Houston Ship Channel through amine capture technology,” according to a news release.

The team also identified business opportunities in producing ammonia as a liquid carrier by using the Haber-Bosch process that would leverage maritime ammonia tanker fleets to ship to Western Europe and Northeast Asia markets.

"It was an honor to collaborate with my Hydrogen Economy Program teammates to explore business opportunities using existing technologies to produce clean hydrogen and reinvest profits to further advance decarbonization efforts in the future," Johnson says in a news release. "I extend my gratitude to the University of Houston for assembling top-notch resources on the critical topic of clean hydrogen production. By bringing together students, corporate leaders, engineers, and scientists, we are able to join forces to accelerate the renewable hydrogen economy."

Cody Johnson is the CEO of SCS Technologies, a provider of CO2 measurement systems, petroleum LACT units, and methane vapor recovery units. Photo courtesy of SCS

UH’s Hydrogen Economy Program helps energy professionals and students strategically at the world’s energy hub in the Houston area. The program provides a forum for information from faculty and industry leaders. Participants in the University of Houston Hydrogen Economy Program can develop a capstone project by using knowledge from the completed course and then present a business plan for a clean hydrogen start-up venture. The projects were evaluated by a panel of judges after class presentations.

"At the University of Houston, we are committed to advancing the energy transition by bringing diverse skills and knowledge together," Alan Rossiter, executive director of external relations and educational program development for UH Energy, says in a news release. "The Hydrogen Economy Program is one of the many ways we achieve this. With the new cohort beginning in August and registration now open, we look forward to working with a new group of passionate, curious, and intelligent energy professionals and students."

The Hydrogen Economy is a part of UH Energy's Sustainable Energy Development portfolio. The Hydrogen Economy Program is a joint effort by UH and the American Institute of Chemical Engineers.

Led by Haotian Wang (left) and Feng-Yang Chen, the Rice University team published a study this month detailing how its reactor system sustainably converts waste into ammonia. Photo by Jeff Fitlow/Rice University

Houston lab develops reactor that sustainably turns waste into ammonia

seeing green

A team of Rice University engineers has developed a reactor design that can decarbonize ammonia production, produce clean water and potentially have applications in further research into other eco-friendly chemical processes.

Led by Rice associate professor Haotian Wang, the team published a study this month in the journal Nature Catalysis that details how the new reactor system sustainably and efficiently converts nitrates (common pollutants found in industrial wastewater and agricultural runoff) into ammonia, according to the university. The research was supported by Rice and the National Science Foundation.

“Our findings suggest a new, greener method of addressing both water pollution and ammonia production, which could influence how industries and communities handle these challenges,” Wang says in a statement. “If we want to decarbonize the grid and reach net-zero goals by 2050, there is an urgent need to develop alternative ways to produce ammonia sustainably.”

Other methods of creating ammonia include the Haber-Bosh process and electrochemical synthesis. The Haber-Bosh process requires large-scale centralized infrastructure and high temperature and pressure conditions. Meanwhile, electrochemical synthesis requires a high concentration of additive chemicals.

According to Rice, the new reactor requires less additive chemicals than the electrochemical synthesis, allowing nitrates to be converted more sustainably. The reactor relies on an innovative porous solid electrolyte as well as recyclable ions and a three-chamber system to improve the reaction’s efficiency.

Additionally, this development provides an effective water decontamination method.

“We conducted experiments where we flowed nitrate-contaminated water through this reactor and measured the amount of ammonia produced and the purity of the treated water,” Feng-Yang Chen, a Rice graduate student who is the lead author on the study, says. “We discovered that our novel reactor system could turn nitrate-contaminated water into pure ammonia and clean water very efficiently, without the need for extra chemicals. In simple terms, you put wastewater in, and you get pure ammonia and purified water out.”

Pedro Alvarez, the George R. Brown Professor of Civil and Environmental Engineering, director of the Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT) and the Water Technologies Entrepreneurship and Research (WaTER) Institute at Rice, says the reactor is "very timely and important" for growing cities that must deal with nitrate-contaminated groundwater supplies it.

"Conventional nitrate removal in drinking water treatment involves ion exchange or membrane filtration by reverse osmosis, which generates brines and transfers the nitrate problem from one phase to another,” he continues.

Wang's lab has been making headlines in recent years for innovative processes and technologies focused on the energy transition.

Last year, the lab published a study in Nature detailing a new technology that uses electricity to remove carbon dioxide from air capture to induce a water-and-oxygen-based electrochemical reaction, generating between 10 to 25 liters of high-purity carbon using only the power of a standard lightbulb.

In 2022, Rice reported that Wang’s lab in the George R. Brown School of Engineering had also replaced rare, expensive iridium with ruthenium, a more abundant precious metal, as the positive-electrode catalyst in a reactor that splits water into hydrogen and oxygen.

The lab received a portion of $10.8 million in research grants from the Houston-based Welch Foundation for research focused on converting carbon dioxide into useful chemicals, such as ethanol, last year. And Solidec, founded by Ryan Duchanois and Yang Xia from Wang's Lab, also received a $100,000 award from Rice as part of the One Small Step Grant program.

Wang has also been named among one of the most-cited researchers in the world.

The deal will enable transportation of ExxonMobil’s low-carbon hydrogen through Air Liquide’s pipeline network. Photo via exxonmobil.com

ExxonMobil’s low-carbon hydrogen project in Baytown adds Air Liquide as partner

team work

Spring-based energy giant ExxonMobil has enlisted Air Liquide as a partner for what’s being billed as the world’s largest low-carbon hydrogen project.

The deal will enable transportation of ExxonMobil’s low-carbon hydrogen through Air Liquide’s pipeline network. Furthermore, Air Liquide will build and operate four units to supply 9,000 metric tons of oxygen and up to 6,500 metric tons of nitrogen each day for the ExxonMobil project.

Air Liquide’s U.S. headquarters is in Houston.

ExxonMobil’s hydrogen production facility is planned for the company’s 3,400-acre Baytown refining and petrochemical complex. The project is expected to produce 1 billion cubic feet of low-carbon hydrogen daily from natural gas and more than 1 million tons of low-carbon ammonia annually while capturing more than 98 percent of the associated carbon emissions.

“Momentum continues to build for the world’s largest low-carbon hydrogen project and the emerging hydrogen market,” Dan Ammann, president of ExxonMobil Low Carbon Solutions, says in a news release.

The hydrogen project is expected to come online in 2027 or 2028.

ExxonMobil says using hydrogen to fuel its olefins plant at Baytown could reduce sitewide carbon emissions by as much as 30 percent. Meanwhile, the carbon capture and storage (CSUS) component of the project would be capable of storing 10 million metric tons of carbon each year, the company says.

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New Rice study details how carbon capture could reduce AI data center emissions

by the numbers

A new study out of Rice University points to carbon capture and storage methods as pivotal solutions to addressing emissions from AI-driven data centers.

The study was authored by Hon Chung Lau, an adjunct professor in the Department of Chemical and Biomolecular Engineering at Rice University and founder of Low Carbon Energies LLC, and Steve C. Tsai, an energy transition consultant at Low Carbon Energies LLC, and published in the journal Energy & Fuels.

According to the study, U.S. data center power capacity could more than quadruple in five years, growing from 40 gigawatts in 2025 to 169 gigawatts by 2030. Without proper regulation of emissions, the report estimates that carbon dioxide produced by fossil-fuel power plants supplying electricity to data centers could grow at the same scale, increasing from 90 million metric tons to more than 404 million metric tons over the same time period.

The researchers analyzed publicly available data on announced U.S. data centers, which included energy sources, locations, and projected power capacity before estimating data center-related carbon emissions based on each state’s electricity mix. From there, they examined whether those emissions could be captured and stored underground in saline aquifers.

The team estimates that 34 states have enough saline aquifer storage capacity to store more than 100 years of projected data center-related carbon dioxide emissions beyond 2030. Aquifers could store an estimated 59 million metric tons of data center-related carbon dioxide, or about 66 percent of the sector’s emissions in 2025. However, that calculation could grow to 299 million metric tons, or about 74 percent of projected data center-related emissions by 2030.

The researchers found that more than 90 percent of data center-related carbon dioxide emissions could potentially be mitigated through carbon capture and storage when out-of-state storage options are included, even though they note that carbon capture isn’t the only solution.

“It does show that the geology exists to make a meaningful impact, especially in states where data center growth is strongest,” Lau said in a news release.

Rapid growth in states including Texas, Virginia, Pennsylvania, Ohio, Arizona, Colorado, Utah and Illinois was considered in the study. According to the findings, Texas would need to add 25 gigawatts of power capacity by 2030 to meet projected data center demand, as data centers require reliable electricity 24/7.

“Data centers are becoming one of the defining energy challenges of the AI era,” Lau added in the news release. “The question is not only whether we can build enough computing infrastructure, but whether we can power it in a way that is reliable, affordable and compatible with decarbonization goals.”

Shell strikes $1.8B deal to offload solar and wind assets in India

Renewable Exit

Reflecting its ongoing de-emphasis of renewable energy, oil and gas giant Shell has agreed to sell its solar and wind power business in India for $1.8 billion.

Aditya Birla Renewables Ltd. (ABRen) is the pending buyer of Solenergi Power Private Ltd., including the Sprng Energy group of companies. Sprng Energy develops, owns and operates utility-scale solar and wind power facilities in India.

Shell, whose U.S. headquarters is in Houston, acquired Solenergi in 2022 for $1.55 billion.

ABRen is Aditya Birla Group’s renewable energy platform. Global Infrastructure Partners, part of asset manager BlackRock, is a strategic investor in ABRen. ABRen develops and operates solar, wind, hybrid and battery storage projects in India.

“This agreement reflects Shell’s continued focus on adjusting the portfolio in our power business,” Machteld de Haan, Shell’s president of downstream, renewables and energy solutions, said in a news release. “We are high-grading our power portfolio and recycling capital in service of our asset-backed trading strategy … This is another step in building a more focused, competitive, and resilient business while improving returns year on year towards 2030.”

Under Wael Sawan, who was named CEO of Shell in 2023, the company has moved away from large-scale, low-yield green energy projects to concentrate on high-margin sectors. Those sectors include natural gas, LNG, deep-water drilling and global energy trading.

The Solenergi deal, expected to close by the end of this year, signals yet another move in Shell’s reassessment of its renewables business. The company has said it will no longer invest in offshore wind projects, but it remains committed to becoming a net-zero emissions business by 2050.

Shell said India remains an important market. In India, Shell offers LNG supply and regasification for downstream users, and also operates Shell Mobility and Shell Lubricants.

The proposed sale of the Indian renewables business continues Shell’s decreasing focus on renewables. In October, Shell exited Atlantic Shores Offshore Wind, a 50-50 joint venture created to offshore wind projects off the coast of New Jersey and New York.

Shell has declared it will not make new investments in offshore wind generation, favoring existing ventures and the expansion of EV charging infrastructure.

The company also announced plans to shut down its Volta C electric vehicle charging business in August 2025.

Experts: Houston's VC ecosystem has set the foundation — now we need scale

guest column

Fervo Energy went public earlier this summer. The Houston geothermal company priced its IPO at $27 per share, raised $1.89 billion, and opened the next morning at a market capitalization north of $10 billion. By most measures, it is the largest venture-backed cleantech IPO in history and an unambiguous win for Houston. It’s also a useful moment to look at where Houston's venture ecosystem stands and where it can go. The highlight: Houston's venture ecosystem has real foundations and, with increased company formation activity, can grow into the scale our city's ambitions deserve.

A Houston energy story in the national recovery

The recent uptick in Houston venture activity follows national trends. U.S. venture deal count contracted roughly 22 percent from its 2021 peak through 2024 before rebounding to about 16,700 rounds in 2025. Houston's 23 percent increase in VC funding from 2023 to 2024 is part of a national recovery of comparable magnitude over the same time window.

The energy sector is where Houston exhibits unique trends—and where the story turns clearly positive. (Houston's strong health and space sectors deserve their own separate consideration.) By deal count, energy-related rounds have accounted for 15 to 20 percent of Houston activity, roughly consistent over the past few years.

By capital, energy's share surged from about 14 percent in 2023 to over 60 percent in 2025, driven by a small number of large Houston-headquartered rounds, primarily in geothermal and related technologies. Fervo is the obvious anchor, but Sage Geosystems, Quaise Energy, Zeta Energy, Vaulted Deep, Applied Carbon and Mariana Minerals have all closed meaningful rounds. Houston is concentrated and accelerating as an energy capital market, an invaluable position to build upon.

From foundation to scale

The institutional pieces are in place. Greentown Labs, Activate, the Ion and others have built sector-specialized infrastructure most cities would struggle to assemble. Fervo itself is an alum of both Activate and Greentown Labs. Mercury Fund closed its $160 million Fund V, its largest ever. Houston Angel Network, GOOSE Capital, Fathom Fund, and broader pre-seed and seed capital coverage are here. The Houston $10 million-plus Series A list now includes 40 rounds since 2021, which break roughly into two eras. While 2021 to 2022 was biotech-heavy, with companies like Sporos Bioventures, RadioMedix, Cellenkos and Coya Therapeutics, 2024 to 2025 has tilted clearly toward energy, climate, and critical minerals, with Vaulted Deep, Applied Carbon, Mariana Minerals, Sage Geosystems and Ignis H2 Energy among them.

What’s less developed is the volume of seed-stage companies flowing into that capital. Imagine a dozen more Fervos coming out of that infrastructure over the next decade, each generating jobs, recycled founder capital, and the next wave of operators and angel investors. That is the kind of opportunity Houston has within reach if we build the company-formation pipeline to feed it. To be relevant on the national stage as a venture market, and to drive an economy the size of Houston's into the 2030s, the city needs to be doing closer to 20 Series A rounds per month rather than per year. That throughput implies roughly 1,000 seed rounds per year, feeding the funnel at a 20 percent to 30 percent graduation rate. Reaching such throughput depends on how many new founders Houston produces and how quickly our innovation ecosystem can help them achieve lift-off.

Houston in context

The comparative picture brings the scaling challenge into focus. Between 2021 and 2024, Houston-area startups closed between 126 and 153 disclosed venture rounds per year, against a national count between 9,854 and 14,125. That places Houston at a little over 1 percent of the U.S. deal count. For comparison, Austin ran about three times Houston's deal count each year.

At the Series A level, Houston closed between 12 and 24 rounds in any given year. The median Houston Series A across the period was about $10.7 million, compared with $15.4 million in San Francisco. Houston founders are raising fewer and smaller Series A rounds than founders in peer metros, which points directly to where Houston has the most room to grow.

The unicorn picture tells the same story. From 2021 through 2025, the U.S. produced 590 venture-backed unicorns. Four were Houston-based: Solugen and Axiom Space in 2021, Cart.com in 2023, and Fervo Energy in 2024. Adding HighRadius from 2020 brings Houston's all-time total to five. Austin added 19 over the same five-year window. The path from here is to make Houston's entries on lists like these less the exception and more the rule.

Where this leads

Houston has a real opportunity to become the deepest, most credible energy and climate capital market in the country, with the company formation, talent and operator density to support it. The data shows the foundation is already in place. Fervo, Solugen and the growing roster of energy-adjacent Series A graduates are proof. Fervo's IPO is the first of what should be many. Houston has not had a venture-backed cleantech liquidity event of this scale before, and the city now has one to reference, recruit against and build on. With increased company formation at the seed and pre-seed stages, a Fervo-scale outcome need not be a generational event in Houston, but instead, it can become part of a chain reaction powering the city's economy.

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Stephanie T. Schmidt, PhD, is the founder of a stealth startup, a Venture Fellow at Energy Transition Ventures, and an Executive MBA candidate at Rice University's Jones Graduate School of Business. Lawson Gow is the Chief Operating Officer of Greentown Labs. The full Houston VC landscape report is available at Energy Transition Ventures and CleanTech.Org.

Sources: Crunchbase, PitchBook-NVCA, Carta
This guest column originally appeared on our sister site, InnovationMap.com.

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