Ten climatetech startups were named most-promising at this annual Rice Alliance Energy Tech Venture Forum. Photo courtesy Rice Alliance.

Rice Alliance Energy Tech Venture Forum names most-promising startups

big winners

Investors at the Rice Alliance Energy Tech Venture Forum have named the 10 most-promising startups among the group of 100 clean tech companies participating in the event.

The 22nd annual event was held yesterday, Sept. 18, at Rice University’s Jones Graduate School of Business and was part of the second Houston Energy and Climate Startup Week.

The most-promising startups will receive $7,000 in in-kind legal services from Baker Botts.

The 10 most-promising companies included:

  • Houston-based Xplorobot, which has developed laser gas imaging technology for the first handheld methane detection device approved by the EPA as an alternative test method
  • Seattle-based Badwater Alchemy, a desalination company that uses nano materials to purify saline water at a fraction of the cost of traditional methods
  • San Francisco-based Ammobia, which is developing a clean ammonia production process
  • Illinois-based Celadyne Technologies, which is building hydrogen for industrial decarbonization with durable and efficient fuel cells and electrolyzers
  • Massachusetts-based MacroCycle Technologies, which converts plastic waste in the form of bottles, food trays and polyester textiles into virgin-grade mPET resin
  • Massachusetts-based AtoMe, which uses nano-ceramics to develop ultra-durable metals for 3D printing
  • Colorado-based Advanced Thermovoltaic Systems (ATS) Energy, a renewable energy semiconductor manufacturing company
  • North Carolina-based Lukera Energy, which is converting waste methane into high-value fuel
  • Midland, Texas-based AI Driller, a company that uses AI and machine learning to enable remote operations and provide historical drilling data for survey management, anti-collision monitoring and iob reporting
  • New York-based Fast Metals Inc., which has developed a chemical process to extract valuable metals from complex toxic mine tailings that is capable of producing iron, aluminum, scandium, titanium and other rare earth elements using industrial waste and waste CO2 as inputs

Arculus Solutions won the People's Choice Award. The New Jersey-based company retrofits natural gas pipelines for safe hydrogen transportation. It also won Track A: Hydrogen, Fuel Cells, Buildings, Water, & Other Energy Solutions at the Energy Venture Day and Pitch Competition during CERAWeek earlier this year.

The 100 energy technology ventures selected to participate in the forum were named earlier this year. See the full list here.

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

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.

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.

Houston Energy and Climate Startup Week is coming back for a second year. Photo via GHP

Houston Energy and Climate Startup Week announces 2025 dates, key events

comeback tour

Six local organizations focused on the energy transition have teamed up to bring back Houston Energy and Climate Startup Week.

The second annual event will take place Sept. 15-19, according to an announcement. The Ion District will host many of the week's events.

Houston Energy and Climate Startup Week was founded in 2024 by Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Houston Energy Transition Initiative (HETI), Digital Wildcatters and Activate.

“Houston Energy and Climate Startup Week was created to answer a fundamental question: Can we achieve more by working together than we can alone?” Jane Stricker, senior vice president at the Greater Houston Partnership and executive director of HETI, said in the release.

So far, events for the 2025 Houston Energy and Climate Startup Week include an introduction to climatetech accelerator Activate's latest cohort, the Rice Alliance Energy Tech Venture Forum, a showcase from Greentown Labs' ACCEL cohort, and Halliburton Labs Pitch Day.

Houston organizations New Climate Ventures and Digital Wildcatters, along with Global Corporate Venturing, are slated to offer programming again in 2025. And new partners, Avatar Innovations and Decarbonization Partners, are slated to introduce events. Find a full schedule here.

Other organizations can begin entering calendar submissions starting in May, according to the release.

Last year, Houston Energy and Climate Startup Week welcomed more than 2,000 attendees, investors and industry leaders to more than 30 events. It featured more than 100 speakers and showcased more than 125 startups.

"In 2024, we set out to build something with lasting impact—rooted in the ingenuity of Houston’s technologists and founders. Thanks to a collaborative effort across industry, academia, and startups, we’ve only just begun to showcase Houston’s strengths and invite others to be part of this movement," Stricker added in the release. "We can’t wait to see the city rise to the occasion again in 2025.”

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Baker Hughes to provide equipment for massive low-carbon ammonia plant

coming soon

Houston-based energy technology company Baker Hughes has been tapped to supply equipment for what will be the world’s largest low-carbon ammonia plant.

French technology and engineering company Technip Energies will buy a steam turbine generator and compression equipment from Baker Hughes for Blue Point Number One, a $4 billion low-carbon ammonia plant being developed in Louisiana by a joint venture comprising CF Industries, JERA and Mitsui & Co. Technip was awarded a contract worth at least $1.1 billion to provide services for the Blue Point project.

CF, a producer of ammonia and nitrogen, owns a 40 percent stake in the joint venture, with JERA, Japan’s largest power generator, at 35 percent and Mitsui, a Japanese industrial conglomerate, at 25 percent.

The Blue Point Number One project, to be located at CF’s Blue Point ammonia production facility, will be capable of producing about 1.4 million metric tons of low-carbon ammonia per year and permanently storing up to 2.3 million metric tons of carbon dioxide.

Construction of the ammonia-making facility is expected to start in 2026, with production of low-carbon ammonia set to get underway in 2029.

“Ammonia, as a lower-carbon energy source, is poised to play a pivotal role in enabling and accelerating global sustainable energy development,” Alessandro Bresciani, senior vice president of energy equipment at Baker Hughes, said in a news release.

Earlier this year, British engineering and industrial gas company Linde signed a long-term contract to supply industrial gases for Blue Point Number One. Linde Engineering Americas is based in Houston.

Houston expert asks: Is the Texas grid ready for the future?

Guets Column

Texas has spent the past five years racing to strengthen its electric grid after Winter Storm Uri exposed just how vulnerable it was. Billions have gone into new transmission lines, grid hardening, and a surge of renewables and batteries. Those moves have made a difference, we haven’t seen another systemwide blackout like Uri, but the question now isn’t what’s been done, it’s whether Texas can keep up with what’s coming.

Massive data centers, electric vehicles, and industrial projects are driving electricity demand to unprecedented levels. NERC recently boosted its 10-year load forecast for Texas by more than 60%. McKinsey projects that U.S. electricity demand will rise roughly 40% by 2030 and double by 2050, with data centers alone accounting for as much as 11-12% of total U.S. electricity demand by 2030, up from about 4% today. Texas, already the top destination for new data centers, will feel that surge at a greater scale.

While the challenges ahead are massive and there will undoubtedly be bumps in the road (some probably big), we have an engaged Texas legislature, capable regulatory bodies, active non-profits, pragmatic industry groups, and the best energy minds in the world working together to make a market-based system work. I am optimistic Texas will find a way.

Why Texas Faces a Unique Grid Challenge

About 90% of Texas is served by a single, independent grid operated by ERCOT, rather than being connected to the two large interstate grids that cover the rest of the country. This structure allows ERCOT to avoid federal oversight of its market design, although it still must comply with FERC reliability standards. The trade-off is limited access to power from neighboring states during emergencies, leaving Texas to rely almost entirely on in-state generation and reserves when extreme weather hits.

ERCOT’s market design is also different. It’s an “energy-only” market, meaning generators are paid for electricity sold, not for keeping capacity available. While that lowers prices in normal times, it also makes it harder to finance backup, dispatchable generation like natural gas and batteries needed when the wind isn’t blowing or the sun isn’t shining.

The Risks Mounting

In Texas, solar and wind power supply a significant percentage of electricity to the grid. As Julie Cohn, a nonresident scholar at the Baker Institute, explains, these inverter‑based resources “connect through power electronics, which means they don’t provide the same physical signals to the grid that traditional generators do.” The Odessa incidents, where solar farms tripped offline during minor grid disturbances, showed how fragile parts of this evolving grid can be. “Fortunately, it didn’t result in customer outages, and it was a clear signal that Texas has the opportunity to lead in solving this challenge.”

Extreme weather adds more pressure while the grid is trying to adapt to a surge in use. CES research manager Miaomiao Rimmer notes: “Hurricane frequencies haven't increased, but infrastructure and population in their paths have expanded dramatically. The same hurricane that hit 70 years ago would cause far more damage today because there’s simply more in harm’s way.”

Medlock: “Texas has made significant strides in the last 5 years, but there’s more work to be done.”

Ken Medlock, Senior Director of the Center for Energy Studies at Rice University’s Baker Institute, argues that Texas’s problem isn’t a lack of solutions; it’s how quickly those solutions are implemented. He stresses that during the January 2024 cold snap, natural gas kept the grid stable, proving that “any system configuration with sufficient, dispatchable generation capacity would have kept the lights on.” Yet ERCOT load has exceeded dispatchable capacity with growing frequency since 2018, raising the stakes for future reliability.

Ken notes: “ERCOT has a substantial portfolio of options, including investment in dispatchable generation, storage near industrial users, transmission expansion, and siting generation closer to load centers. But allowing structural risks to reliability that can be avoided at a reasonable cost is unacceptable. Appropriate market design and sufficient regulatory oversight are critical.” He emphasizes that reliability must be explicitly priced into ERCOT’s market so backup resources can be built and maintained profitably. These resources, whether natural gas, nuclear, or batteries, cannot remain afterthoughts if Texas wants a stable grid.

Building a More Reliable Grid

For Texas to keep pace with rising demand and withstand severe weather, it must act decisively on multiple fronts, strengthening its grid while building for long-term growth.

  • Coordinated Planning: Align regulators, utilities, and market players to plan decades ahead, not just for next summer.
  • Balancing Clean and Reliable Power: Match renewable growth with flexible, dispatchable generation that can deliver power on demand.
  • Fixing Local Weak Spots: Harden distribution networks, where most outages occur, rather than focusing only on large-scale generation.
  • Market Reform and Technology Investment: Price reliability fairly and support R&D to make renewables strengthen, not destabilize, the grid.

In Conclusion

While Texas has undeniably improved its grid since Winter Storm Uri, surging electricity demand and intensifying weather mean the work is far from over. Unlike other states, ERCOT can’t rely on its neighbors for backup power, and its market structure makes new dispatchable resources harder to build. Decisive leadership, investment, and reforms will be needed to ensure Texas can keep the lights on.

It probably won’t be a smooth journey, but my sense is that Texas will solve these problems and do something spectacular. It will deliver more power with fewer emissions, faster than skeptics believe, and surprise us all.

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Scott Nyquist is a senior advisor at McKinsey & Company and vice chairman, Houston Energy Transition Initiative of the Greater Houston Partnership. The views expressed herein are Nyquist's own and not those of McKinsey & Company or of the Greater Houston Partnership. This article originally appeared on LinkedIn.

Houston companies partner to advance industrial carbon capture tech

green team

Carbon Clean and Samsung E&A, both of which maintain their U.S. headquarters in Houston, have formed a partnership to accelerate the global use of industrial carbon capture systems.

Carbon Clean provides industrial carbon capture technology. Samsung E&A offers engineering, construction and procurement services. The companies say their partnership will speed up industrial decarbonization and make carbon capture more accessible for sectors that face challenges in decarbonizing their operations.

Carbon Clean says its fully modular columnless carbon capture unit, known as CycloneCC, is up to 50 percent smaller than traditional units and each "train" can capture up to 100,000 tonnes of CO2 per year.

“Our partnership with Samsung E&A marks a major milestone in scaling industrial carbon capture,” Aniruddha Sharma, chair and CEO of Carbon Clean, said in a news release.

Hong Namkoong, CEO of Samsung E&A, added that the partnership with Carbon Clean will accelerate the global rollout of carbon capture systems that “are efficient, reliable, and ready for the energy transition.”

Carbon Clean and Samsung E&A had previously worked together on carbon capture projects for Aramco, an oil and gas giant, and Modec, a supplier of floating production systems for offshore oil and gas facilities. Aramco’s Americas headquarters is also in Houston, as is Modec’s U.S. headquarters.