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.

From Your Site Articles

Fifteen startups — with clean energy solutions involving everything from solar energy to hydrogen — are joining Rice Alliance's Clean Energy Accelerator later this summer. Photo via Getty Images

Houston cleantech accelerator reveals 15 startups to 2023 cohort

energy 2.0

A clean energy program has announced its third cohort and named the 15 startups that were accepted into to the accelerator.

The Rice Alliance's Clean Energy Accelerator revealed its 2023 cohort that will be in the 10-week program that kicks of July 25. CEA, a hybrid program based out of the Ion, will wrap up with a Demo Day alongside the 20th Annual Rice Alliance Energy Tech Venture Forum on September 21.

The accelerator, led by Kerri Smith and Matt Peña, provides the cohort with programming, networking, and mentorship from six executives in residence — Nathan Ball, Fatimah Bello, Michael Egan, Michael Evans, Stephen Sims, and Deanna Zhang.

Since the Clean Energy Accelerator launched in 2021, the program has supported 29 ventures that have gone on to raise over $75 million in funding, identified and launched pilots, and created jobs, According to Rice, many of these companies relocated to Houston.

Class 3, which has already raised $23.3 million in funding, hails from four countries and seven states and are addressing a range of energy solutions — from advanced materials, carbon management/capture, energy storage, hydrogen, solar energy, wind energy, and more. They were selected by a screening committee consisting of more than 50 industry experts, investors, energy leaders, and entrepreneurs.

The third class, as announced by Rice Alliance, is as follows:

Ayrton Energy, based in Alberta, Canada, provides hydrogen storage technology that improves hydrogen transport logistics for distributed energy applications.
Headquartered in Massachusetts, Carbix transforms atmospheric carbon dioxide emissions into building materials using proprietary reactor technology.
Houston-based CryoDesalination lowers the carbon footprint and cost of removing salts and heavy metals from water and industrial effluents.
Digital Carbon Bank, based in Alberta, Canada, provides a carbon solution tailored for the energy industry.
Chandler, Arizona-based EarthEn provides compressed carbon dioxide-based energy storage and artificial intelligence solutions allowing grid owners/operators to be completely renewable.
H Quest Vanguard, from Pittsburgh, provides green hydrogen at a five to 10 times lower cost to users of natural gas to decarbonize industrial heat.
Calgary, Alberta-based Highwood Emissions Management's SaaS platform allows oil and gas companies to understand their emissions and develop robust plans to reduce them.
Icarus RT, from San Diego, California, improves photovoltaic efficiency while enabling useful heat energy storage.
Los Altos, California-based Khepra has developed a chemical manufacturing platform for the low-cost, sustainable production of agrochemicals.
Binghamton, New York-based Natrion’s electrolyte is a drop-in solid-state battery component that can be rapidly implemented into existing batteries.
Oceanways, based in London, provides low-cost, flexible and scalable zero-emission underwater "virtual pipelines" to energy producers.
Relyion Energy, from Santa Clara, California, is developing battery usage and intelligence solutions with deeper data and insights for retired electric vehicle batteries.
Massachusetts-based Triton Anchor provides a more cost-effective anchoring solution for offshore clean energy with minimal environmental impact.
TROES, from Markham, Ontario, provides a 4-in-1 microgrid solution with integrated hardware and software for a streamlined energy storage experience.
Mexico City-based Tycho Solutions supports clean energy project developers by saving time and money during the critical project-siting process.

------

This article originally ran on InnovationMap.

Ad Placement 300x100

Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

Houston energy transition ecosystem rebrands as 'Energytech Cypher'

new look

Houston-based Energytech Nexus has rebranded.

The cleantech founders community will now be known as Energytech Cypher. Organizers say the new name was inspired by the Arabic roots of the word cypher, ṣifr, which is also the root of the word zero.

"A cypher is a key that unlocks what's hidden," Nada Ahmed, co-founder and chief revenue officer of Energytech Cypher, said in a news release. "And zero? Zero is where every transformation begins, the leap from 0 to 1, from idea to reality, from potential to power. We decode the energy transition by connecting the right founders, the right capital, and the right corporate partners at the right time, because the most important journey in energy is the one that takes you from nothing to something."

Energytech Nexus has rebranded to Energytech Cypher.

Co-founder and CEO Jason Ethier says that the name change better reflects the organization's mission.

"The energy transition doesn't have a technology problem. It has a connection problem," Ehtier added in the release. "The right founders exist. The right investors exist. The right partners exist. What's been missing is the infrastructure to bring them together—to decode the complexity, remove the friction, and make sure the best technologies find the markets that need them. That's what this community has always done. Energytech Cypher is the name that finally says it."

Energytech Cypher, previously known as Energytech Nexus, was first launched in 2023 and has grown from a podcast to a 130-member ecosystem. It has supported startups including Capwell Services, Resollant, Syzygy Plasmonics, Hertha Metals, Solidec and many others.

It is known for its flagship programs like the Pilotathon, which connects founders with industry partners for pilot opportunities. The event debuted in 2024.

Energytech Cypher also launched its COPILOT Accelerator last year. The accelerator partners with Browning the Green Space, a nonprofit that promotes diversity, equity and inclusion (DEI) in the clean energy and climatech sectors. The inaugural cohort included two Houston-based startups and 12 others from around the U.S.

It also hosts programs like Liftoff, Energy Tech Market, lunch and learns, CEO roundtables, investor workshops and international partnership initiatives.

Last year, Energytech Cypher also announced a new strategic ecosystem partnership with Greentown Labs, aimed at accelerating growth for clean energy startups. It also named its global founding partners, including Houston-based operations such as Chevron Technology Ventures, Collide, Oxy Technology Ventures, and others from around the world.

CERAWeek 2026 to bring energy leaders to Houston to discuss tech and geopolitics

where to be

CERAWeek returns this month, March 23-27, and will once again bring leading energy executives and government officials to Houston.

The 44th annual event will again host U.S. Secretary of Energy Chris Wright and U.S. Secretary of the Interior Doug Burgum.

Wright will participate in a plenary session focused on energy policy with Daniel Yergin, conference chair and vice chairman of S&P Global, on March 23. The following day, he will be featured in the Celebrating 10 Years of U.S. LNG reception with Jack Fusso, president and CEO, of Cheniere Energy. Both events are part of the Executive Conference track.

Burgum will participate in a leadership dialogue plenary session with Yergin on March 25. It is also part of the Executive Conference track. Burgum is also chairman of the National Energy Dominance Council, established by President Trump in 2025.

Top energy executives, many of whom are based in Houston, will also be featured prominently at the week-long event. Other speakers include:

Bill Blevins, director of grid coordination for the Electric Reliability Council of Texas (ERCOT)
Trevor Best, CEO of Syzygy Plasmonics
Marie Contour Carrere, executive director of the Rice Sustainability Institute
Ryan DuChanois, co-founder and CEO of Solidec
Reginald DesRoches, president of Rice University
Georgina Campbell Flatter, CEO of Greentown Labs
Jim Fitterling, chair and CEO of Dow Inc.
Vicki Hollub, CEO of Occidental Petroleum Corp.
Renu Katon, chancellor and president of the University of Houston
Ryan Lance, chairman and CEO of ConocoPhillips
Olivier Le Peuch, CEO of SLB
Patrick Pouyanné, chairman and CEO of TotalEnergies SE
Adrian Tromel, chief innovation officer and interim VP for Innovation at Rice University
Bobby Tudor, founder and CEO of Artemis Energy Partners and chairman of HETI
Wael Sawan, CEO of Shell plc
Lorenzo Simonelli, chairman and CEO of Baker Hughes Co.
Mike Wirth, chairman and CEO of Chevron Corp.
Jeremy Pitts, managing director of Activate Houston
And many others

This year, CERAWeek will center around the theme of Convergence and Competition: Energy, Technology and Geopolitics.

"Change is inescapable," Yergin said in a news release. "The global energy landscape—and to a large extent the entire global economy—is being fundamentally reshaped by the dual forces of convergence and competition. The race for AI is fusing the energy and technology industries like never before, bringing into sharp relief the need to align energy expansion with sustainable economic growth."

"Yet, the potential for collaboration and innovation is increasingly matched by the risk for collision and conflict in a world marked by geopolitical rivalry, tariffs and fragmented supply chains," he continued. "Reconciling an increasingly complex world with the growing demand for energy that is stable, secure and affordable is a complex reality that CERAWeek 2026 will tackle when global energy leaders meet in Houston."

Key topics of discussion will include:

Politics, Economics, Trade and Supply Chains
Policy, Regulations and Stakeholders
Oil Value Chain
Power, Renewables, Generation and Grid
AI and Digital
Minerals and Mining
Electrification Technologies
Investment and Financing
Chemicals and Materials
Business Strategies
The Innovation Ecosystem
Managing Emissions
Low-Carbon Fuels and Mobility
Climate and Sustainability
Workforce Strategy

The CERAWeek Innovation Agora track, which is the program's deeper dive into technology and innovation, will feature thought leadership on "AI, decarbonization, low carbon fuels, cybersecurity, hydrogen, nuclear, mining and minerals, mobility, automation and more," according to the release.

Agora Hubs will return this year and be divided into three zones: new energies, carbon and climate, and AI. The hubs will feature amphitheater-style sessions and panels. Agora Pods will allow energy startups to showcase their ideas in 20- to 30-minute presentations.

Additionally, CERAWeek will introduce a new program this year on Friday, March 27. Known as Look Forward, it will focus on economics, politics and technology.

See the full agenda for the week here. Find more information and register for the event here.

Houston team unveils model to manage e-waste and more news to know

Trending News

Editor's note: The top energy transition news for March includes the "missing link" in scaling e-waste recycling and Houston's future as a leader in CCUS. Plus, we preview the teams pitching at the Energy Venture Day competition during CERAWeek. Here are the five most-read EnergyCapitalHTX stories from March 1-15:

1. Houston researchers propose model to scale e-waste recycling

Jian Shi, Chuyue Wang and Kailai Wang have developed a model that aims to make recycling e-waste economically viable and help recover critical minerals needed for EVs. Photo courtesy UH.

The “missing link” in critical minerals may have been in our junk drawers all along, according to new research from the University of Houston. Jian Shi, an associate professor in the UH Cullen College of Engineering, and his team have unveiled a new supply chain model that aims to make e-waste economically viable and could help make large-scale recycling possible. Continue reading.

2. Houston positioned to lead in Carbon Capture Utilization (CCU), study shows

Jane Stricker reflects on four years at HETI. Courtesy photo

With global demand for energy production while lowering emissions continues to grow, Houston and the Gulf Coast region are uniquely positioned to lead with carbon capture, utilization and sequestration (CCUS). A new study developed by the Houston Energy Transition Initiative (HETI) in collaboration with Deloitte Consulting explores how the region can transform captured CO₂ into valuable products while supporting continued economic growth and industrial competitiveness. Continue reading.

3. Houston cleantech startup seeks $200M for superhot geothermal plant

Houston cleantech startup seeks $200M for superhot geothermal plant

Quaise Energy is developing Project Obsidian, a superhot geothermal plant in central Oregon. Rendering via quaise.com.

Houston-based Quaise Energy is looking to raise $200 million to support the development of a 50-megawatt superhot geothermal plant in Oregon. The company is seeking $100 million in Series B funding, plus an additional $100 million from grants, debt and project-level finance, a representative from the company tells EnergyCapital. Continue reading.

4. 40+ teams to pitch at annual CERAWeek clean energy competition

40+ teams to pitch at annual CERAWeek clean energy competition

Houston-based HEXASpec took home the top TEX-E prize and $25,000 at last year's Energy Venture Day and Pitch Competition. Photo courtesy TEX-E.

The Rice Alliance for Technology and Entrepreneurship, the Houston Energy Transition Initiative (HETI), the Texas Entrepreneurship Exchange for Energy (TEX-E) and the Ion have named the 30-plus energy ventures and teams that will pitch at the 2026 Energy Venture Day and Pitch Competition during CERAWeek this month. The selected ventures are "driving efficiency and advancements toward the energy transition," according to the Rice Alliance. Continue reading.

5. Texas data center boom could strain water supply, new report warns

A new report shows that Texas data centers used 25 billion gallons of water in 2025. Photo via HARC report.

As data centers continue to boom throughout Texas, a new report from the Houston Advanced Research Center (HARC) warns that the trend could strain the state’s water supply. HARC estimates Texas data centers used 25 billion gallons of water in 2025—and that the demand for water will continue to rise to meet the needs of the 464 data centers currently in Texas, as well as 70 additional sites currently under development. Continue reading.

View All Listings

ENERGYCAPITALHTX EMAILS ARE AWESOME