Here are the 100 startups selected to participate in this year's Rice Alliance Energy Tech Venture Forum. Photo by Natalie Harms

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.

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

Houston cleantech accelerator names 12 startups to 2025 cohort

early-stage accelerator

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.

The event "will showcase energy tech innovations to shift towards a more sustainable, reliable and lower carbon future across interactive panels, inspiring keynotes and over 50 dynamic venture pitches." Photo via Rice.edu

Houston organization calls for startup submissions to pitch at inaugural climatetech week

Apply now

Calling all energy tech startups — you don't want to miss the opportunity to pitch at the inaugural Energy and Climate Startup Week in Houston.

Applications are open now for Rice Alliance for Technology and Entrepreneurship's Energy Tech Venture Forum, which will take place on September 12 as a part of the first Energy and Climate Startup Week in Houston that is taking place September 9 to 13. While ETVF has been hosted by Rice every year for over 20 years, this will be the first time startups will be pitching as a part of the bigger, citywide event.

The event "will showcase energy tech innovations to shift towards a more sustainable, reliable and lower carbon future across interactive panels, inspiring keynotes and over 50 dynamic venture pitches," according to Rice Alliance.

Ninety selected startups will get one-on-one time with the 75 investors who attend the event — each company will have around four to 10 meetings set up for them — and then 40 companies will continue on to pitch to the attendees of the event. Additionally, the Class 4 of the Rice Alliance Clean Energy Accelerator, which was recently announced on EnergyCapital, will also be featured for 10 Demo Day pitches.

Startup founders have until July 12 to apply online.

In addition to the pitches, the September 12 event will feature keynote addresses, panels, and investor-only office hours.

Learn more about the event from last year:

The Rice Alliance Clean Energy Accelerator, a hybrid program based out of the Ion, has named its latest cohort. Photo courtesy of the Ion

Exclusive: Houston clean energy accelerator names 4th cohort of early-stage tech companies

coming soon to Hou

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

The companies, which hail from six states and two countries, are providing solutions across carbon management, advanced materials, hydrogen, solar, and more. The program, which operates in a hybrid capacity based out of the Ion, will run for 10 weeks beginning July 9 and culminating in a demo day alongside the 21st Rice Alliance Energy Tech Venture Forum on September 12. Throughout the duration, the companies will come to Houston three times.

"As Houston’s preeminent energy startup accelerator, this is an open door to the region’s energy ecosystem for ventures from around the world and puts them through a rigorous curriculum to bolster their fundraising efforts, prepare them for accelerated adoption into the marketplace and expand their connections for potential pilots, partnerships and sales," per a Rice Alliance news release.

This cohort's executives-in-residence, or XiRs, include Tim Franklin-Hensler, John Jeffers, Ritu Sachdeva and Nick Tillmann. In addition to these innovators — who bring their expertise, mentorship, and strategic growth planning — the program is ed by the Rice Alliance’s Kerri Smith and Matt Peña.

Class 4 for the Rice Alliance Clean Energy Accelerator includes:

  • 1s1 Energy, based in Portola Valley, California, develops electrolyzers with boron-based materials so that utilities and heavy industry can produce low-cost green hydrogen to decarbonize existing and future businesses.
  • Houston-based Capwell provides a cost-effective, modular, and easily transportable system that eliminates methane emissions from wells for state governments and oil and as companies.
  • CarboMat, from Calgary, Alberta, provides a clean technology that produces low-cost, sustainable, and mid-tier grade carbon fibers at a 60 percent reduced production cost and 50 percent reduced GHG emissions to composite manufacturers in industries that require large volumes of inexpensive carbon fibers for production of commodity grade products.
  • Cleveland, Ohio-headquartered Corrolytics offers cutting-edge technology that detects corrosion on-site and in near real-time, providing accurate insights into microbial corrosion and general corrosion.
  • Geolabe, from Los Almos, New Mexico, provides an automated methane monitoring system that helps organizations measure environmental performance and introduce and prioritize remedial actions.
  • Kaizen, which operates in Tomball just outside of Houston, provides hydrogen based microgrids that enable fleet electrification at sites that are grid constrained or off grid. The solutions emit no local emissions and reduce global emissions.
  • Los Angeles-based Mitico offers services and equipment to capture carbon dioxide with a patent-pending granulated metal carbonate sorption technology captures over 95 percent of the CO2 emitted from post-combustion point sources.
  • OceanBit, headquartered in Honolulu, provides ocean thermal energy technologies and power plants that delivers abundant, affordable, base load power to utilities and companies who need a firm, dispatchable, and 24/7 carbon-free source of electricity.
  • From Ontario, Canada, QEA Tech provides detailed building envelope energy audits using drones, thermography, and proprietary AI based software.
  • Houston-based Sensytec offers patented sensors, delivering real-time, accurate material performance data of concrete and advanced building materials.
  • Vroom Solar, based in Springfield, Missouri, provides Smart Solar Management technology that optimizes solar and optional AC power differently at a lower cost and smaller footprint for solar customers who need affordable, efficient, and user-friendly power anywhere.
  • VulcanX, from Vancouver, Canada, provides hydrogen and solid carbon to gas utilities, steel manufacturers and ammonia producers who require low-cost and low-emission hydrogen.

Since launching in 2021, the Clean Energy Accelerator has accelerated 43 ventures that have raised more than $166 million in funding. According to the program, these companies have piloted their technologies, connected with investors, created jobs, and many relocated to Houston.

The 2023 cohort included 15 clean energy companies.

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Houston energy tech company breaks ground on low-cost green hydrogen pilot plant

coming soon

Houston’s Lummus Technology and Advanced Ionics have broken ground on their hydrogen pilot plant at Lummus’ R&D facility in Pasadena.

The plant will support Advanced Ionics’ cutting-edge electrolyzer technology, which aims to deliver high-efficiency hydrogen production with reduced energy requirements.

“By demonstrating Advanced Ionics’ technology at our state-of-the-art R&D facility, we are leveraging the expertise of our scientists and R&D team, plus our proven track record of developing breakthrough technologies,” Leon de Bruyn, president and CEO of Lummus, said in a news release. “This will help us accelerate commercialization of the technology and deliver scalable, cost-effective and sustainable green hydrogen solutions to our customers.”

Advanced Ionics is a Milwaukee-based low-cost green hydrogen technology provider. Its electrolyzer converts process and waste heat into green hydrogen for less than a dollar per kilogram, according to the company. The platform's users include industrial hydrogen producers looking to optimize sustainability at an affordable cost.

Lummus, a global energy technology company, will operate the Advanced Ionics electrolyzer and manage the balance of plant systems.

In 2024, Lummus and Advanced Ionics established their partnership to help advance the production of cost-effective and sustainable hydrogen technology. Lummus Venture Capital also invested an undisclosed amount into Advanced Ionics at the time.

“Our collaboration with Lummus demonstrates the power of partnerships in driving the energy transition forward,” Ignacio Bincaz, CEO of Advanced Ionics, added in the news release. “Lummus serves as a launchpad for technologies like ours, enabling us to validate performance and integration under real-world conditions. This milestone proves that green hydrogen can be practical and economically viable, and it marks another key step toward commercial deployment.”

Houston Energy Transition Initiative releases 2025 year in review

The View From HETI

The Houston Energy Transition Initiative (HETI) concludes another impactful year by reaffirming our commitment to positioning Houston as the global leader in the energy transition – delivering more energy with fewer emissions. HETI continues to be focused on advancing key regional priorities, driving economic development and talent recruitment.

It was a year of changes across the energy landscape, yet HETI continued to collaborate, convene, and deliver measurable progress. Below are some of the year’s key highlights:

Sharing Members’ Impact on Decarbonization and Emissions Reductions

HETI released a report detailing members’ low-carbon initiatives and commitments, showcasing industry momentum and long-term pathways to achieving the dual challenge of meeting growing global energy demand while reducing emissions. Major findings include more than $95 billion in low-carbon investments and 20% reduction in Scope 1 emissions since 2017 by HETI-affiliated companies. The report also recommends strategic pathways for continued emissions reductions.

Advancing CCUS at Commercial Scale

HETI publicly supported efforts to accelerate carbon capture, utilization, and storage (CCUS) efforts to commercial scale. Early in the year, HETI and the Houston CCS Alliance commissioned Texas A&M University’s Energy Institute and Mary Kay O’Connor Process Safety Center to research the operational history and safety record of CCUS in the United States. In November, the U.S. Environmental Protection Agency granted Texas authority to permit CCUS—a significant win that increases the region’s competitiveness in the global energy ecosystem.

Leadership in Resilient Power for Houston’s Growth

In June, HETI hosted its first Resilient Power: Fueling Houston’s Growing Economy summit, bringing together more than 100 business and civic leaders to discuss the role of resilient, reliable power in Houston’s economic development. Cross-sector leaders explored the impacts of rising power demand driven by industrial decarbonization and digitalization, and discussed the essential collaboration between the energy and tech sectors to strengthen long-term resilience through an “all of the above” approach. HETI also published a fact sheet on Houston’s resilient power access, affordability, and reliability as a resource for partners.

Showcasing Houston’s Leadership at CERAWeek 2025

HETI participated in CERAWeek 2025, elevating Houston’s energy leadership on the world stage. The HETI House activation in the Innovation Agora attracted more than 1,000 visitors and generated over 80 economic development leads. In addition, HETI partnered with Rice Alliance and TEX-E for the fourth annual Energy Ventures Pitch Competition at CERAWeek, bringing together students, startups and energy leaders to advance innovation and investment.

Scaling Houston’s Innovation Ecosystem

As Houston’s energy innovation ecosystem continues to grow, HETI plays an important role in shaping its future. During its second year, Houston Energy and Climate Startup Week attracted more than 3,900 attendees from local and global startups, industry leaders, and investors—further solidifying Houston’s status as the world’s leading energy innovation hub.

Strengthening Regional Competitiveness

To advance technology commercialization and support the Gulf Coast’s continued energy competitiveness, HETI hosted its second annual Gulf Coast National Labs Workshop. This year’s event convened more than 120 leaders representing six national laboratories, industry partners, academia, and government stakeholders to accelerate collaboration around the region’s greatest energy and chemical challenges.

HETI’s progress this year is significant, but the work ahead is even more critical. As we move into the new year, HETI remains steadfast in its commitment to convening industry leaders, informing policy, supporting innovation, and driving economic growth across the region. This work strengthens Houston’s core energy economy and accelerates the emerging sectors that will ensure Houston continues to lead the world in energy.

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This article originally appeared 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.

Chevron CEO touts biofuels as part of its renewable energy efforts

Betting on biofuels

As Chevron Chairman and CEO Mike Wirth surveys the renewable energy landscape, he sees the most potential in biofuels.

At a recent WSJ CEO Council event, Wirth put a particular emphasis on biofuels—the most established form of renewable energy—among the mix of low-carbon energy sources. According to Biofuels International, Chevron operates nine biorefineries around the world.

Biofuels are made from fats and oils, such as canola oil, soybean oil and used cooking oil.

At Chevron’s renewable diesel plant in Geismar, Louisiana, a recent expansion boosted annual production by 278 percent — from 90 million gallons to 340 million gallons. To drive innovation in the low-carbon-fuels sector, Chevron opened a technology center this summer at its renewable energy campus in Ames, Iowa.

Across the board, Chevron has earmarked $8 billion to advance its low-carbon business by 2028.

In addition to biofuels, Chevron’s low-carbon strategy includes hydrogen, although Wirth said hydrogen “is proving to be very difficult” because “you’re fighting the laws of thermodynamics.”

Nonetheless, Chevron is heavily invested in the hydrogen market:

As for geothermal energy, Wirth said it shows “some real promise.” Chevron’s plans for this segment of the renewable energy industry include a 20-megawatt geothermal pilot project in Northern California, according to the California Community Choice Association. The project is part of an initiative that aims to eventually produce 600 megawatts of geothermal energy.

What about solar and wind power?

“We start with things where we have some reason to believe we can create shareholder value, where we’ve got skills and competency, so we didn’t go into wind or solar because we’re not a turbine manufacturer installing wind and solar,” he said in remarks reported by The Wall Street Journal.

In a September interview with The New York Times, Wirth touched on Chevron’s green energy capabilities.

“We are investing in new technologies, like hydrogen, carbon capture and storage, lithium and renewable fuels,” Wirth said. “They are growing fast but off a very small base. We need to do things that meet demand as it exists and then evolve as demand evolves.”