Houston cleantech accelerator names 12 startups to 2025 cohort

early-stage accelerator

The Rice Alliance Clean Energy Accelerator has named its fifth cohort. Photo via the Ion

The Rice Alliance Clean Energy Accelerator has named 12 early-stage startups to its latest cohort.

The hybrid program, which operates in a hybrid capacity based out of the Ion, runs for 10 weeks and provides energy transition startups with training focused on fundraising, pilots, partnerships and sale. It begins July 8 and will be led by executive director Kerri Smith and program director Matthew Peña with support from executives-in-residence Lynn Frostman, John Jeffers, David Horsup and Dev Motiram.

The accelerator will culminate with a demo day on Sept. 18 at the Rice Alliance Energy Tech Venture Forum during the Houston Energy and Climate Startup Week.

Members of this year's cohort come from the Houston area as well as across the U.S. and Canada.

Class 5 for the Rice Alliance Clean Energy Accelerator includes:

Aqua-Cell Energy, which builds industrial-scale overnight batteries to provide affordable solar power
Arculus, a company that provides multilayer internal coating for pipelines that lowers friction, extends pipeline life and enables carbon dioxide transport and hydrogen blending
AtmoSpark, a Houston-based sustainable cooling and freshwater company that provides an electric field-driven air separation system that reduces dehumidification energy costs for data centers and industrial facilities
AtoMe, which delivers durable metallic composites to energy and aerospace companies using an eco-friendly dry blade method that eliminates harmful chemicals
ConceptLoop, a company that converts plastic waste into eco-friendly, low-carbon aggregate
Fathom Storage, which provides a more solidly embedded and steel-efficient anchoring solution for offshore service providers, wind energy developers and research institutes
GeoKiln, a Houston-based company that addresses issues of subsurface hydrogen extraction by applying proven oil and gas techniques to accelerate natural hydrogen reactions, enabling hydrogen production
Innowind Energy Solutions, a company that provides nonintrusive, active flow control devices to boost energy production and extend turbine lifespan
Lukera Energy, which transforms waste methane into high-value methanol using a breakthrough nanobubble technology
Metal Light Inc., which has developed a scalable, cost-effective Metal-Air generator to replace diesel generators
Moonshot Hydrogen, a company that converts food and agricultural waste into clean hydrogen and bioethanol
Resollant, a Woodlands-based company that delivers compact, zero-emission hydrogen and carbon reactors to refineries, petrochemical plants, steel and cement manufacturers and fuel producers

The Rice Alliance Clean Energy Accelerator has supported 55 ventures since it was founded in 2021, collectively raising over $250 million in funding, according to the university. See last year's cohort here.

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The Oxy Innovation Center is now open at the Ion in Houston, and a new coworking space launches this week. Photo courtesy of the Ion

Oxy opens energy-focused innovation center in Midtown Houston

moving in

Houston-based Occidental officially opened its new Oxy Innovation Center with a ribbon cutting at the Ion last month.

The opening reflects Oxy and the Ion's "shared commitment to advancing technology and accelerating a lower-carbon future," according to an announcement from the Ion.

Oxy, which was named a corporate partner of the Ion in 2023, now has nearly 6,500 square feet on the fourth floor of the Ion. Rice University and the Rice Real Estate Company announced the lease of the additional space last year, along with agreements with Fathom Fund and Activate.

At the time, the leases brought the Ion's occupancy up to 90 percent.

Additionally, New York-based Industrious plans to launch its coworking space at the Ion on May 8. The company was tapped as the new operator of the Ion’s 86,000-square-foot coworking space in Midtown in January.

Dallas-based Common Desk previously operated the space, which was expanded by 50 percent in 2023 to 86,000 square feet.

CBRE agreed to acquire Industrious in a deal valued at $400 million earlier this year. Industrious also operates another local coworking space is at 1301 McKinney St.

Industrious will host a launch party celebrating the new location Thursday, May 8. Find more information here.

Oxy Innovation Center. Photo via LinkedIn.

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This story originally appeared on our sister site, InnovationMap.com.

Houston-based energy tech-oriented companies will be invited to the pitching event for Antwerp and Houston Cleantech Entrepreneurs from 2 to 5 pm on December 3 at The Ion. Photo via the Ion

Houston to host cleantech collaboration with delegation from Belgium

this week

A delegation of nine startups from Antwerp, Belgium, along with industry experts will visit Houston from December 2 through December 6, which will include The Greater Houston Partnership, Greentown Labs, The Ion, and The Cannon.

The delegation will represent cleantech, sustainable chemistry, and energy tech sectors to engage with Houston’s energy transition ecosystem and identify collaboration and investment opportunities.

Houston-based energy tech-oriented companies will be invited to the pitching event for Antwerp and Houston Cleantech Entrepreneurs from 2 to 5 pm on December 3 at The Ion. Interested entrepreneurs can register at this link.

Antwerp and Houston are considered two of the world's largest petrochemical hubs, and also part of the leading innovators in the cleantech, sustainable chemistry, and energy tech sectors. The event will be organized by the Port of Antwerp-Bruges, BlueChem (an Antwerp-based sustainable chemistry incubator), the city of Antwerp, and Flanders Investment and Trade.

“Antwerp and Houston are known for their ports and petrochemical industries, but fewer people realize the remarkable cleantech, sustainable chemistry, and energytech ecosystems that have emerged around these hubs,” Nathalie Mathys, head of office at FIT Houston, says in a news release.

The Port of Antwerp-Bruges is known for innovating new technologies, which includes 5G, digital twins, artificial intelligence, drones, and advanced sensors. Antwerp has over 350 startups and nine incubators and accelerators.

“This delegation visit highlights the potential for collaboration between two of the most dynamic regions in these fields, paving the way for a cleaner, more sustainable future,” adds Mathys.

Navigating the energy transition is a relay race, and the baton is in Houston, says this energy executive. Photo courtesy of SCS

O&G exec: Houston is where the future of energy is taking shape

Q&A

Earlier this month, a West Texas-based oilfield equipment provider announced that it was opening an office in the Ion Houston. It's all a part of the company's energy transition plan.

SCS Technologies, based in Big Spring, Texas, has a new strategy and innovation-focused office in the Ion, the company announced last week. The company, which provides CO2 capture measurement and methane vapor recovery equipment for the energy, industrial, and environmental sectors, also announced René Vandersalm as the new COO.

These are just the latest moves for the company as the world moves away from hydrocarbons and toward a greener future, CEO Cody Johnson tells EnergyCapital, explaining that he recognizes Houston has a role in the energy transition.

"This is a relay race – a race that has already started," he says. "Houston is the place where the baton will be handed off – it’s the place where the race is occurring. SCS Technologies is determined to be part of this solution dreamed of and planned in Houston and then executed in the Permian Basin, where we call home."

In an interview with EnergyCapital, Johnson weighs in on the new office and the future of his company.

EnergyCapital: How has SCS’s business evolved amid the energy transition?

Cody Johnson: SCS Technologies was founded to design and fabricate customized Lease Automated Custody Transfer units in the Permian Basin. These LACT units were used primarily to measure the quality and quantity of crude oil at all points of custody transfer. Essentially, SCS Technologies produced the premier "crude cash registers" for the Permian Basin.

As the oil and gas industry has adapted into the energy transition industry, our customers and the communities we operate in have a growing need for SCS Technologies to use our design and fabrication of measurement skids to measure the quality and quantity of CO₂ or to design and fabricate methane — and other vent gases — Vapor Recovery Units. SCS Technologies’ design and fabrication expertise in measurement skids, pump skids, and compression skids, coupled with our Permian Basin based training and fabrication campus, ideally positioned us to answer the call to fill the expertise and capacity gap.

EC: How are you preparing for the future of energy?

CJ: Society has been powered for the past 100 years or so by the management of hydrocarbon molecules. The essential tools for that have been and continue to be oil rigs, pipelines, and refineries in large part. This has given society many benefits but at a price to the environment that isn’t sustainable. Over the next 50 years, society will complete a transition away from managing hydrocarbon molecules and towards managing electrons. Those electrons are created by wind, solar, geothermal, or nuclear processes and travel down copper wires. Managing this transition that is already occurring and working together to do it in the near-term future of energy.

As we execute this transition over the next several decades from managing molecules to managing electrons to provide energy, molecule management companies must find ways to reach net zero emissions in their management practices. This means primarily capturing and managing methane vapors and capturing and sequestering CO₂. This is starting in 2023 in a meaningful way and needs to continue past 2030 and probably past 2050 to have any chance to meet the globally shared social goal to achieve net zero emissions by 2050 and stay below a maximum increase of 1.5 degrees C in global temperatures.

The clock is ticking, and we are behind. The largest molecule management infrastructure investment in history must happen for us to reach these goals. It's mission-critical as one of the three things we simply cannot fail at to achieve net zero by 2050. SCS Technologies is very focused on being an intentional part of the tremendous supply chain buildout to support the infrastructure buildout.

EC: How does the new office in the Ion support these plans?

CJ: SCS Technologies needs to collaborate with the brightest minds working on the energy transition challenges. To contribute meaningfully to the overall effort and to be the thought leader in the methane vapor recovery and CO₂ compression and measurement niche, we need to be at the heart of the energy transition collaboration community. That beating heart is the Ion in Houston.

EC: What role does your new COO, René Vandersalm, play in SCS evolving with the energy transition?

CJ: René is a proven executive in growing mission-critical design and fabrication capacity without sacrificing quality. René’s experience, capabilities, and global network will play a key role in our path forward.

EC: Based in West Texas, SCS has a growing presence in Houston. Why do you see Houston as a leader in the energy transition?

CJ: West Texas has an amazing group of oil and gas professionals and infrastructure. We are proud of that heritage and will always maintain our roots and foundation there. Houston has the only community of engineers, scientists, universities, companies, investors, and key professional service providers that can deliver on the buildout of the molecule management infrastructure required to buy the electron management infrastructure folks time to transition fully to green energy after 2050.

This is a relay race – a race that has already started. Houston is the place where the baton will be handed off – it’s the place where the race is occurring. SCS Technologies is determined to be part of this solution dreamed of and planned in Houston and then executed in the Permian Basin, where we call home.

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This conversation has been edited for brevity and clarity.

SCS Technologies opened a new office in the Ion. Photo courtesy of the Ion

Texas oilfield equipment provider opens Houston office, names new COO amid energy transition growth

major moves

Big changes are happening at a Texas oilfield equipment provider. In the span of a few weeks, the company named a new C-level executive and announced a new strategic office.

SCS Technologies, based in Big Spring, Texas, has opened a new office in the Ion, a 266,000-square-foot innovation hub in Midtown, to focus on strategy and innovation. SCS provides CO2 capture measurement and methane vapor recovery equipment for the energy, industrial, and environmental sectors.

“Embracing Houston's pivotal role in the energy transition, the Ion has swiftly become the epicenter of innovative collaborations. For SCS Technologies, this marks an exciting opportunity to align our capabilities and technology with a diverse consortium of organizations working toward ambitious carbon-neutral goals,” says Cody Johnson, CEO of SCS Technologies, in a news release. “Looking ahead, we are invigorated by the boundless possibilities at the Ion, envisioning groundbreaking solutions and technologies that will unfold there.”

On July 20, SCS announced René Vandersalm as COO. Johnson says in a July 20 statement that the appointment comes at a time when "energy and industrial sectors are undergoing a considerable transformation of their processes and infrastructure to align with carbon-neutral goals."

Vandersalm previously worked for over 20 years at Thermon Manufacturing leading the company's heating solutions. In his new role, he says he will work within SCS "to design and produce the innovative compression and measurement systems our customers need to achieve emissions goals."

“It’s an exciting time as energy and industrial companies strive towards sustainable operations, all while delivering the energy and products that customers worldwide rely on,” Vandersalm continues in the release. “I am both excited and honored to collaborate with the talented and motivated SCS Technologies team as we make a significant impact in this industry-wide transition.”

SCS is partnered with New Orleans-based Black Bay Energy Capital, an energy-focused private equity fund.

The Ion has seen a flurry of activity when it comes to energy tenants. In March, United Kingdom-based Carbon Clean, opened its US headquarters in the Ion as it expands nationally. In April, the Ion named several other new tenants, which included industrial software company Cognite, robotics tech provider Nauticus, and more. These companies join Chevron, which officially opened its new outpost in 2022 after being announced as a founding partner in 2020. ExxonMobil is also a founding partner.

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Greentown Labs combines forces with MassChallenge to support more climate startups

strategic partnership

Climatetech incubator Greentown Labs has formed a strategic partnership with global zero-equity accelerator MassChallenge.

The two organizations have headquarters in the Boston area, while Greentown Labs is also co-located in Houston. MassChallenge has a hub in Dallas, as well as others in Israel, Switzerland and the United Kingdom.

The new partnership aims to strengthen the ecosystem for early-stage climatetech startups by providing more mentorship, support and a broader commercialization network for members, according to a news release.

Greentown Labs will share its expertise with the 23 startups in MassChallenge's first climate-specific accelerator, known as the MassChallenge Early Stage Climate program. Additionally, Greentown Labs members will benefit from MassChallenge's network of expert mentors, judges, entrepreneurs, partners, investors, philanthropists and others.

“There are so many synergies and shared values between MassChallenge and Greentown that launching a collaboration like this feels like a natural next step for our organizations as we strive to support as many early-stage climate founders as possible,” Georgina Campbell Flatter, Greentown Labs CEO, said in the news release. “We want to reduce the friction and barriers to market for these climate entrepreneurs and ultimately increase their opportunity for success—ecosystem collaboration is an essential part of solving these challenges together.”

Combined, Greentown and MassChallenge report that they have supported more than 4,500 founders and more than 1,000 climate startups. MassChallenge has awarded more than $18 million in equity-free grants to startups, which have gone on to raise over $15 billion, since it was founded in 2009. Greentown Labs has helped more than 575 startups raise more than $8.2 billion in funding since it launched in 2011.

Greentown recently added five startups to its Houston community and 14 other climatetech ventures to its Boston incubator. It also announced its third ACCEL cohort, which works to advance BIPOC-led startups in the climatetech space, earlier this year. Read more here.

$135M battery facility breaks ground in Houston and more energy news to know

Hot Topics

Editor's note: We're looking back at the hottest EnergyCapitalHTX stories from the second half of May 2025. Our most-read stories from May 16-30 include large-scale battery storage developments, collaborations with major brands, and a scientific breakthrough.

$135 million Houston battery storage facility breaks ground

SMT Energy, CenterPoint and Irby Construction have broken ground on a 160-megawatt battery energy storage system in ERCOT's Houston zone. Photo via Getty Images

SMT Energy and CenterPoint Energy have partnered with utility infrastructure solutions provider Irby Construction Company to break ground on a 160 megawatt battery energy storage system (BESS) located in the Houston zone of the ERCOT market.

“We are proud to be underway and deliver this grid-strengthening project to Houston,” Kevin Midei, SVP of engineering, procurement and construction, at SMT Energy, said. Continue reading.

Houston researchers make breakthrough on electricity-generating bacteria

A team of Rice researchers, including Caroline Ajo-Franklin and Biki Bapi Kundu, has uncovered how certain bacteria breathe by generating electricity. Photo by Jeff Fitlow/Rice University.

New research from Rice University that merges biology with electrochemistry has uncovered new findings on how some bacteria generate electricity.

Led by Caroline Ajo-Franklin, a Rice professor of biosciences and the director of the Rice Synthetic Biology Institute, the team published its findings in the journal Cell in April. The report showed how some bacteria use compounds called naphthoquinones, rather than oxygen, to transfer electrons to external surfaces in a process known as extracellular respiration. In other words, the bacteria are exhale electricity as they breathe. Continue reading.

Ultra-fast EV charging bays coming to Waffle House locations in Texas and beyond

bp pulse plans to install a network of DC fast chargers at Waffle House locations in Texas, Georgia and Florida. Photo via Getty Images.

Scattered, smothered and ... charged? Starting next year, EV drivers can connect to ultra-fast charging stations at select Waffle House locations throughout Texas, courtesy of bp pulse.

The EV arm of British energy giant bp announced a strategic partnership with the all-day breakfast chain. The company aims to deploy a network of 400kW DC fast chargers and a mix of CCS and NACS connectors at Waffle House locations in Texas, Georgia, Florida, and other restaurants in the South.Continue reading.

Engie partners on major Texas, California battery storage portfolio

Engie and CBRE are partnering up. Photo via Getty Images

Houston’s Engie North America has partnered with New York-based CBRE Investment Management on a 2.4-gigawatt portfolio of battery storage assets in Texas and California.

The portfolio consists of 31 projects operating in the Electric Reliability Council of Texas (ERCOT) and California Independent System Operator (CAISO) territories. According to a company statement, the transaction represents one of Engie’s largest operating portfolio partnerships in the U.S. Continue reading.

Houston renewables developer and Google agree to second solar collaboration

Google will soon be able to pull from energyRe’s portfolio of more than 600 megawatts of new solar and solar storage projects in South Carolina. Photo via Pixabay

EnergyRe, a developer of large-scale renewable energy projects with headquarters in Houston and New York, has signed a renewable energy agreement that will allow Google to invest in and purchase renewable energy credits (RECs) from its projects under development in South Carolina.

Google will be able to pull from energyRe’s portfolio of more than 600 megawatts of new solar and solar storage projects in the state. Continue reading.

Texas falls lower on national ranking of greenest states for 2025

room to improve

Texas dropped in the rankings on WalletHub's Greenest States 2025 report.

The report, released last month, considered 28 relevant metrics—from air and water quality to the number of alternative fuel stations and green buildings per capita—to call out states doing the best (and worst) jobs of caring for the environment.

Texas came in at No. 42 out of 50, with a total score of 42.54 out of 100. Last year, the Lone Star State ranked No. 38 with a score of 50.40 based on 25 metrics.

Texas' poor ranking was driven by its last-placed ranking, coming in at No. 50, for overall environmental quality. It was tied for No. 45 for air quality and ranked No. 46 for water quality, which helped comprise the overall environmental quality score.

Other metrics fell closer toward the middle of the pack. The state ranked No. 32 for eco-friendly behaviors and No. 39 for climate-change contributions.

California also fell on the annual report. While the state claimed the top spot in 2024, it came in at No. 7 this year. Vermont, which came in second in 2024, was named the greenest state in 2025.

Hawaii, which didn't crack the top five last year, was ranked No. 2 on the 2025 report. New York, Maryland and Maine rounded out the top five this year.

West Virginia was the country's least green state again this year, followed by Louisiana, Kentucky, Alabama and Mississippi.

The report also showed that Democrat-led states ranked around No. 12 on average, whereas Republican states fell at around No. 33.

While the WalletHub report seems bleak for Texas, others have shown more positive signs for the state. Texas was ranked slightly above average in a recent ranking of the best states for sustainable development. A recently released U.S. Energy Storage Monitor shows that Texas led all states and surpassed California in the fourth quarter of 2024 by installing 1.2 gigawatts of utility-scale energy storage for solar and wind power.

Still, WalletHub also recently ranked Houston No. 98 out of 100 of the largest cities on its Greenest Cities in America report. Read more here.

Source: WalletHub

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