Plans for the world's largest low-carbon hydrogen plant may be on pause. Photo via exxonmobil.com

As anticipated, Spring-based oil and gas giant ExxonMobil has officially paused plans to build a low-hydrogen plant in Baytown, Chairman and CEO Darren Woods told Reuters in late November.

“The suspension of the project, which had already experienced delays, reflects a wider slowdown in efforts by traditional oil and gas firms to transition to cleaner energy sources as many of the initiatives struggle to turn a profit,” Reuters reported.

Woods signaled during ExxonMobil’s second-quarter earnings call that the company was weighing whether it would move forward with the proposed $7 billion plant.

The Biden-era Inflation Reduction Act created a new 10-year incentive, the 45V tax credit, for production of clean hydrogen. But under President Trump’s "One Big Beautiful Bill Act," the window for starting construction of low-carbon hydrogen projects that qualify for the tax credit has narrowed. The Inflation Reduction Act mandated that construction start by 2033. But the Big Beautiful Bill switched the construction start time to early 2028.

“While our project can meet this timeline, we’re concerned about the development of a broader market, which is critical to transition from government incentives,” ExxonMobil Chairman and CEO Darren Woods said during the company’s second-quarter earnings call.

Woods had said ExxonMobil was figuring out whether a combination of the 45Q tax credit for carbon capture projects and the revised 45V tax credit would enable a broader market for low-carbon hydrogen.

“If we can’t see an eventual path to a market-driven business, we won’t move forward with the [Baytown] project,” Woods said.

“We knew that helping to establish a brand-new product and a brand-new market initially driven by government policy would not be easy or advance in a straight line,” he added.

ExxonMobil announced in 2022 that it would build the low-carbon hydrogen plant at its refining and petrochemical complex in Baytown. The company has said the plant is slated to go online in 2027 and 2028.

ExxonMobil had said the Baytown plant would produce up to 1 billion cubic feet of hydrogen per day made from natural gas, and capture and store more than 98 percent of the associated carbon dioxide. The plant would have been capable of storing as much as 10 million metric tons of CO2 per year.

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This article originally appeared on EnergyCapitalHTX.com; it was updated to include new information about the plant in December 2025.

Two Houston-based companies made it into this new clean tech accelerator. Photo via greentownlabs.com

Houston clean tech startup accelerator announces 7 companies to inaugural cohort

seeing green

The Low-Carbon Hydrogen Accelerator announced its inaugural class of clean tech startups — two of which hail from right here in Hosuton.

In all, seven startups have been chosen to participate this year in the Low-Carbon Hydrogen Accelerator, which was announced in November. The six-month accelerator program offers collaboration and engagement opportunities with the Electric Power Research Institute and its member utilities, as well as with Shell. Through the accelerator, the institute and Shell will provide startups with two innovation paths: a technology validation track and a technology demonstration track.

The accelerator — part of the Green Go program, affiliated with Greentown Labs — is aimed at coming up with innovations in low-carbon hydrogen production, storage, and distribution.

“Accelerating low-carbon hydrogen technologies is an essential part of achieving global net-zero targets by 2050,” Neva Espinoza, vice president of energy supply and low-carbon resources at the Electric Power Research Institute, says in a news release.

The inaugural LCHA cohort includes:

  • Advanced Ionics, based in Milwaukee, is enabling green hydrogen production without the green premium.
  • Arco Technologies from Bologna, Italy, is developing a proprietary Anion Exchange Membrane electrolyzer with the lowest capital expenditures and operating expenses possible today.
  • Based in Manchester in the United Kingdom, Clean Power is developing a novel, low-cost, highly durable hydrogen polymer electrolyte membrane fuel cell delivering zero-emission electricity.
  • Element Resources, based in Houston, is enabling compressed hydrogen storage tank technology.
  • Another local company, Smartpipe Technologies is developing a robust self-monitored repurposed pipeline system for hydrogen with minimal environmental disruption.
  • SPEC Sensors from California is creating a robust and reliable meshed sensor network for hydrogen leak detection and line-monitoring systems.
  • Canadian company RUNWITHIT Synthetics is creating a live, digital twin modeling platform that generates decision-support data for regional hydrogen-demand scenarios.

Element Resources, which produces hydrogen from renewables for mobility, power production, and energy storage, is collaborating with Zhifeng Ren, M.D. Anderson chair professor in physics and director of the Texas Center for Superconductivity at the University of Houston.

The other Houston startup, Smartpipe Technologies, announced earlier this month that Canadian pipeline company Enbridge had made a $6.6 million investment in the startup.

For 2022, the accelerator received applications from 88 startups in 18 countries. The five other participants this year are from California; Wisconsin; Alberta, Canada; Italy; and the United Kingdom.

Aside from the Electric Power Research Institute, Shell USA, and Greentown, the accelerator’s partners are the City of Houston and the Urban Future Lab at New York University’s Tandon School of Engineering.

“Creating a robust hydrogen economy will require a systems-oriented approach and unparalleled cooperation between corporate partners and emerging companies,” says Ryan Dings, chief operating officer and general counsel at Greentown Labs.

Greentown operates startup incubators in Somerville, Massachusetts, and Houston.

From Rex Tillerson's thoughts on leadership and politics to Houston's role in the low-carbon energy movement, check out these powerful quotes from the 2020 KPMG Global Energy Conference. Getty Images

Overheard: Oil and gas experts weigh in on the future of low-carbon energy and Houston's role in the movement

Eavesdropping in Houston

As the energy capital of the world, Houston can't get complacent. The oil and gas industry is changing — carbon is out and finding clean energy alternatives is in.

At the 2020 KPMG Global Energy Conference on June 5 and 6, hundreds of energy professionals listened to the O&G elite — even including former Secretary of State and former ExxonMobil CEO Rex Tillerson — give their two cents about the revolution. Day two of the conference featured the Houston Low Carbon Energy Climate Summit by the Center for Houston's Future.

In case you missed it, here are a few powerful quotes from both days of the program — from Houston's role in the low-carbon energy movement to Tillerson's leadership expertise.

"Texas is one of those places where you can just get stuff done.”

— Cindy Yeilding, senior vice president at BP, says Texans are willing to collaborate on this. In the "Visions of our Energy Future" panel during the Low Carbon Energy Summit on Thursday, June 6, she predicted Houston will be a net zero carbon city by 2040 or 2035.

“One of the things we need to focus on is being able to attract and retain talent.”

— Mary Anne Brelinsky, CEO of EDF Trading, stressing the importance of talent in the effort to keep Houston the energy capital of the world. Brelinsky advocated for corporations and its execs getting involved with local universities. "We're competing against Silicon Valley," she says in the panel.

"You’ve got the source, and you’ve got the sinks. … Houston is going to be one of our focal points.”

— Charlene Olivia Russell, vice president of Low Carbon Strategies at Oxy, on how Houston is set up for success when it comes to staying as a power player in the global low carbon energy platform, but, during the panel, she emphasizes collaboration needs to continue happening.

“When Shell agreed to sponsor this summit, it was pitched as a climate change summit. It was changed to a low-carbon summit because some people in this room are uncomfortable with the phrase 'climate change.'"

— Jason Klein, vice president of U.S. Energy Transition Strategy at Shell, says at the "Energy Transformations" panel during the Low Carbon Energy Summit on Thursday, June 6.

"If we want to be the leader and the energy capital of the world, we need to attract talent, capital investment, and innovation, and if the people are going to do those things think that we don’t even like to talk about those things, then they aren’t going to come here — they’re going to go to San Francisco.”

— Klein continues. The audience responded with a round of applause.

“I think it is important as Americans to remember that our greatest strength and the most important element to our national security has been that we are a nation that has many allies and friends. Our adversaries — Russia, China, North Korea, Iran — have no allies or friends.”

— Former Secretary of State Rex Tillerson who served as CEO of ExxonMobil from 2006 to 2016. Tillerson discussed a wide range of topics on Wednesday, June 5, at the 2020 KPMG Global Energy Conference in his fireside chat with Regina Mayor, global sector head and U.S. national sector leader of energy and natural resources at KPMG US. Click here to watch the full interview.

“We’re all a work in progress. You’re never done. I’m not done — I’m still a work in progress. If you have that view and you have that set of values that are never going to change … [then] I can keep developing as a human being.”

— Tillerson says of leadership lessons learned. He's an avid proponent of the Boy Scouts of America organization, and cited many valuable lessons he's learned about himself and about leading people from his involvement in the nonprofit.

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Rice University breaks ground on new innovation hub, The Arc

breaking ground

Construction is officially underway on Rice University's The Arc in Houston’s Ion District.

The university broke ground on the 200,000-square-foot research, corporate innovation and office building on Nov. 4. The facility will share a plaza with the existing Ion building, fostering collaboration within the innovation space, according to Rice.

“The Arc will bring Rice’s extraordinary research and talent and Houston’s impactful innovation ecosystem into even closer connection with the industries and innovators working to solve some of the world’s most consequential challenges,” Rice President Reginald DesRoches said in an announcement. “That constant exchange of ideas and expertise will help move discoveries more rapidly from the laboratory to real-world impact.”

Construction is scheduled to be completed by Q2 2028. Rice Real Estate Co. is developing the project, and Rice University will occupy about 80,000 square feet in the building (about 40 percent). Preleasing has begun, with floor plans ranging from 28,000 to 31,000 square feet.

The Arc will feature conference and meeting spaces, an amenity lounge, fitness center, outdoor plazas, underground parking, and on-site retail and dining, according to the release.

It aims to host tenants focused on artificial intelligence and machine learning, data science, robotics, quantum science and engineering and energy, including Rice's new AI Foundry.

Rice says the AI Foundry will be a space where university experts and partners can support organizations with AI challenges. Rice recently committed to hiring 75 new AI-focused faculty and announced plans to launch a new Master of Artificial Intelligence (MAI) next fall.

“The AI Foundry is exactly the kind of collaboration the Arc is designed to enable,” Amy Dittmar, the Howard R. Hughes Provost and executive vice president for academic affairs at Rice, added in the release. “By bringing Rice researchers together with industry partners in a shared environment, we can accelerate the movement of ideas from research into practical applications while helping organizations build the capabilities they need to succeed as AI continues to evolve.

Developers of The Arc are targeting LEED Gold certification by incorporating smart building automation and energy-saving features into the project's design. Rice first announced the project in September 2025.

Rendering courtesy Bogza

Houston battery tech startup FlowCellutions acquired by Katy energy co.

M&A

Katy-based TerraFlow Energy, an energy storage and infrastructure company, has acquired Houston-based battery technology startup FlowCellutions. Financial terms weren’t disclosed.

FlowCellutions still operates under its established name, but with the tagline “A TerraFlow Energy Company.” Becca Segel, founder and CEO of FlowCellutions, now runs the business as its president.

FlowCellutions specializes in electrochemical sensing, diagnostics, analytics, and testing that offer insights into battery chemistry, charging capabilities, and system performance.

“FlowCellutions has always been focused on developing better ways to understand what is happening inside a flow battery and using that information to improve how these systems perform,” Segal said in a press release. “Joining TerraFlow gives us the opportunity to apply that work at a much larger scale while continuing to build the capabilities and expertise that make FlowCellutions unique.”

The FlowCellutions platform supports data centers and other heavy users of power. It’s designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from about seven years to more than 30 years.

Segel founded the company in 2022. A member of Greentown Labs, the company raised more than $2 million in non-dilutive funding and received $1.5 million in National Science Foundation funding earlier this year.

FlowCellutions is one of five finalists in the Energy Transition Business category of InnovationMap’s 2026 Houston Innovation Awards.

“FlowCellutions brings a depth of scientific and technical expertise that fits naturally with where TerraFlow is going,” Jon Parrella, CEO of TerraFlow, said in the release.

“As we move from developing these systems to deploying them at commercial scale, understanding performance at a deeper level matters,” he said. “Bringing FlowCellutions into TerraFlow strengthens that capability and gives both teams more opportunity to advance the technology.”TerraFlow, founded in 2024, develops long-duration energy storage and power infrastructure for data centers, industrial facilities, utilities and other large power consumers.

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This article originally appeared on EnergyCapitalHTX.com.

3 fast-growing Houston scaleups named Innovation Awards finalists

meet the finalists

From IPOs to groundbreakings, some of Houston's most innovative companies reached major milestones this year.

As part of the 2026 Houston Innovation Awards, our Scaleup of the Year category honors innovative later-stage startups that have recently reached a significant milestone in company growth. Three scaleups have been named finalists for the 2026 award.

Read more about these businesses, their founders and their breakthrough technologies below. The 2026 winners will be announced on InnovationMap.com in mid-November.

Erock

Energy infrastructure company Erock, previously known as Enchanted Rock, develops dual-purpose microgrids that rely on natural gas and renewable natural gas to produce lower carbon emissions and air pollutants than diesel generators. Its products can provide bridge power before grid interconnection, backup power during outages and dispatchable capacity that supports long-term grid reliability. The company has more than 1,100 megawatts of installed capacity and over 20 years of experience serving commercial, municipal and large-scale technology customers.

Erock completed its initial public offering this year, raising approximately $600 million in gross proceeds. It also grew its contracted power system sales backlog to approximately $1.7 billion, up tenfold year-over-year, with production sold out through 2028, according to the company's application. The company secured a major equipment order from Anthropic, began construction of the 366-megawatt El Paso Electric project supporting Meta's data center campus, and started assembly operations at its Hyperion facility in Cypress, Texas.

Hertha Metals

Hertha Metals produces lower-cost, lower-emission steel and high-purity iron. The company has developed a single-step process that uses natural gas as a direct reductant instead of metallurgical coal, which cuts production costs by more than 25 percent and emissions by up to 50 percent, according to the company. The same process produces high-purity iron needed for high-purity steels and rare earth magnets. The company says it aims to "re-industrialize America’s production of critical materials."

Hertha Metals was founded by CEO Laureen Meroueh in 2022 and emerged from stealth last year with more than $17 million in venture capital funding. The company closed a $133.65 million Series A this month and also broke ground on its $100M high-purity iron factory known as Chalyx in Conroe.

Venus Aerospace

Spacetech company Venus Aerospace is developing a high-thrust rotating detonation rocket engine (RDRE) that replaces the subsonic combustion used in conventional rocket engines. The RDRE is a compact, simpler engine that can deliver up to 15 percent greater efficiency for defense and space applications. It completed its first U.S. flight test of the engine last summer.

Venus Aerospace was founded in 2020 by CEO Cassie Duggleby and CTO Andrew Duggleby. It raised a $20 million Series A in 2022 and $42 million Series A2 in 2025. It closed a $91 million Series B earlier this year and expanded its leadership team. The company is working toward longer-duration and higher-thrust testing and advancing its flight program.