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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HETI discusses Houston’s energy leadership, from pathways to progress

The View From HETI

In 2024, RMI in collaboration with Mission Possible Partnership (MPP) and the Houston Energy Transition Initiative (HETI) mapped out ambitious scenarios for the region’s decarbonization journey. The report showed that with the right investments and technologies, Houston could achieve meaningful emissions reductions while continuing to power the world. That analysis painted a picture of what could be possible by 2030 and 2050.

Today, the latest HETI progress report shows Houston is not just planning anymore — the region is delivering.

Real results, right now

The numbers tell a compelling story. Since 2017, HETI’s member companies have invested more than $95 billion in low-carbon infrastructure, technologies, and R&D. That’s not a commitment for the future—that’s capital deployed, projects built, and operations transformed.

The results showed industry-wide reductions of 20% in total Scope 1 greenhouse gas emissions and a remarkable 55% decrease in methane emissions from global operations. These aren’t projections—they’re actual reductions happening across refineries, chemical plants, and production facilities throughout the Houston region.

How Houston is leading

What makes Houston’s approach work is its practical, technology-driven focus. Companies across the energy value chain are implementing solutions that work today:

  • Electrifying operations and integrating renewable power
  • Deploying advanced methane detection and elimination technologies
  • Upgrading equipment for greater efficiency
  • Capturing and storing carbon at commercial scale
  • Developing breakthrough technologies from geothermal to advanced nuclear

Take ExxonMobil’s Permian Basin electrification, Shell and Chevron’s lower-carbon Whale project, or BP’s massive Tangguh carbon capture project in Indonesia. These aren’t pilot programs—they’re multi-billion dollar investments demonstrating that decarbonization and energy production go hand in hand.

From scenarios to strategy

The RMI analysis identified three key pathways forward: enabling operational decarbonization, accelerating low-carbon technology scale-up, and creating carbon accounting mechanisms. Houston’s energy leaders have embraced all three.

The momentum is undeniable. Companies are setting ambitious 2030 and 2050 targets with clear roadmaps. New projects are reaching final investment decisions. Innovation ecosystems are flourishing. And critically, this progress is creating jobs and driving economic growth across the region.

Why this matters

Houston isn’t just managing the energy transition—it’s proving what’s possible when you combine world-class engineering expertise, integrated infrastructure, access to capital, and a commitment to both energy security and emissions reduction.

The dual challenge of delivering more energy with less emissions isn’t theoretical in Houston—it’s operational reality. Every ton of CO₂ reduced, every efficiency gain achieved, and every technology deployed demonstrates that we can meet growing global energy demand while making measurable progress on climate goals.

The path forward

The journey from last year’s scenarios to this year’s results shows something crucial: when industry, policymakers, and communities align around practical solutions, transformation accelerates.

Houston’s energy leadership isn’t about choosing between reliable energy and environmental progress, it’s about delivering both. And based on the progress we’re seeing, the momentum is only building.

———

Read the full analysis here. 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.

TotalEnergies to supply solar power to new Google data centers in Texas

power deal

French energy company TotalEnergies, whose U.S. headquarters are in Houston, has signed power purchase agreements to supply 1 gigawatt of solar power for Google data centers in Texas over a 15-year span.

The power will be generated by TotalEnergies’ two solar farms that are being developed in Texas. Construction on the company’s Wichita site (805 megawatt-peak, or MWp) and Mustang Creek site (195 MWp) is scheduled to start in the second quarter of this year.

Marc-Antoine Pignon, U.S. vice president for renewables at TotalEnergies, said in a press release that the 1-gigawatt deal “highlights TotalEnergies’ strategy to deliver tailored renewable energy solutions that support the decarbonization goals of digital players, particularly data centers.”

The deal comes after California-based Clearway, in which TotalEnergies holds a 50 percent stake, secured an agreement to supply 1.2 gigawatts of solar power to Google data centers in Texas and other states.

“Supporting a strong, stable, affordable grid is a top priority as we expand our infrastructure,” said Will Conkling, director of clean energy and power at Google. “Our agreement with TotalEnergies adds necessary new generation to the local system, boosting the amount of affordable and reliable power supply available to serve the entire region.”

TotalEnergies maintains a 10-gigawatt-capacity portfolio of onshore solar, wind and battery storage assets in the U.S., including 5 gigawatts in the territory served by the Electric Reliability Council of Texas (ERCOT).

Other clean energy customers of TotalEnergies include Airbus, Air Liquide, Amazon, LyondellBasell, Merck and Microsoft.

UH lands $1.5M for endowed professorship and energy workforce initiative

funding the future

The University of Houston announced two major funding awards last month focused on energy transition initiatives and leadership.

Longtime UH supporters Peggy and Chris Seaver made a $1 million gift to the university to establish the Peggy and Chris Seaver Endowed Aspire Professorship, a faculty position “designed to strengthen UH Energy and expand the university’s leadership in addressing the most pressing global energy challenges,” according to a news release.

The new role is the third professorship appointed to UH Energy. The professorship can qualify for a dollar-for-dollar match through the Aspire Fund Challenge, a $50 million matching initiative launched by an anonymous donor.

“This gift will be key to cementing UH’s role as The Energy University,” Ramanan Krishnamoorti, vice president for energy and innovation at UH, said in the release. “By recruiting a highly respected faculty member with international experience, we are further elevating UH Energy’s global profile while deepening our impact here in the energy capital of the world.”

Also in January, the university shared that it would be joining the Urban Enrichment Institute (UEI) and the City of Houston to help train the next generation of energy workers, thanks to a $560,000 grant.

The Gulf Research Program of the National Academies of Sciences, Engineering and Medicine awarded the funding to the UEI, a nonprofit that supports at-risk youth. It will allow the UEI to work with UH’s Energy Transition Institute and the Houston Health Department to launch “Spark Energy Futures: Equipping Youth and Communities for the Energy Transition.”

The new initiative is designed for Houstonians ages 16-25 and will provide hands-on experience, four months of STEM-based training, and industry-aligned certifications without a four-year degree. Participants can also earn credentials and job placement support.

“Our energy systems are going through unprecedented changes to address the growing energy demands in the United States, Gulf Coast and Texas,” Debalina Sengupta, assistant vice president and Chief Operating Officer of ETI at UH, said in a news release.“To meet growing demands, the energy supply, transmission, distribution and markets associated with an ever-increasing energy mix needs a workforce skilled in multidimensional aspects of energy, as well as the flexibility to switch as needed to provide affordable, reliable and sustainable energy to our population.”

Keith Cornelius, executive director of UEI, added that he expects about 50 students to participate in the program’s inaugural year and that the program is looking to attract those interested in entering the energy workforce without a college degree.

“We’re looking to have tremendous success with the Energy Transition Institute,” Cornelius said. “This program is a testament to what can be done between a community-based organization, a major university and the city.”

The award was part of a $2.7 million grant that will fund four projects in the Gulf region, including two others in Texas. The Gulf Research Program Awards also granted $748,175 to launch the “Building the South Texas Energy Workforce” initiative in in Kingsville, Texas and $728,000 for “Texas Green Careers Academy: Activating a New Generation of Energy Professionals” in Austin.