Meet some of Greentown's newest members. Photo courtesy of Greentown Labs

Climatech incubator Greentown Labs reports that 14 startups have joined its Houston community so far this year.

The companies are among 30 new startups to have joined Greentown Houston and Greentown Boston in 2026. Four of the companies are headquartered in Houston.

The startups are working on a range of "hydrogen-powered heavy-duty transport to AI-driven grid interconnection," according to Greentown.

The local startups that joined Greentown Houston include:

  • Houston-based Focis AI, which transforms industrial laser scans into structured asset intelligence to automatically identify, classify and map components in refineries and plants
  • Houston-based Iron Lattice, which develops next-generation memory technology for AI and high-performance computing that improves energy efficiency, endurance and scalability while remaining compatible with existing semiconductor manufacturing
  • Houston-based Orbital Arc, which is developing a new ion engine designed to improve the efficiency and scalability of spacecraft propulsion from low Earth orbit to deep space
  • Houston-based Sustain Energy LLC, which delivers cleaner, lower-cost fuel to industrial customers in pipeline-absent, underserved markets, cutting their energy costs and emissions with no infrastructure investment on their end

Other startups from around the world joined the Houston incubator in the same time period, including:

  • Ankara-based AIS Field, which develops robotic, AI-assisted non-destructive inspection systems, including submersible tank and boiler crawlers
  • San Francisco-based Armada AI, which builds rapidly deployable modular and edge data centers that run on local, stranded, or renewable power
  • San Francisco-based Armeta, which turns complex engineering drawings and legacy documentation into structured, usable data
  • Pittsburgh-based Atlas Robotics, which develops a Physical AI platform that powers autonomous material-handling robots and AI-guided forklifts
  • Ghana-based Cocoa Potash, which transforms high-emissions agricultural waste from cocoa, coconut, and palm-nut into organic potash, fertilizer and renewable energy
  • Israel-based Criaterra, which produces low-carbon, cement-free building materials
  • Italy-based ETAK, which manufactures modular reactors that convert solid waste into clean syngas
  • Kenya-based FelixFusion, which uses its Felix platform to model every grid connection point, including capacity, upgrade costs, and constraints
  • San Diego-based Gemini Energy, which builds next-generation fuel cells for data-center power
  • Tokyo-based Hibot, which develops robotic systems for inspecting and maintaining infrastructure in hazardous, hard-to-access environments
  • Austin-based Sheetak, which designs and manufactures thermoelectric coolers, generators, and assemblies for solid-state cooling and energy harvesting
  • The Netherlands-based ToPerform, which makes AI-powered, non-intrusive fouling sensors that monitor pipelines around the clock and predict the optimal cleaning time

Another 16 startups joined Greentown's Boston incubator. See the full list of new members here.

More than 100 startups joined Greentown last year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter. Read more about them here.

Greentown Labs has named its Go Make 2026 cohort. Photo courtesy Greentown Labs

Greentown names 5 climatech startups to manufacturing accelerator

Catalyst Cohort

Greentown Labs has named five climatech startups to its Go Make 2026 cohort, including one from Houston.

Greentown Go Make 2026 is in partnership with Shell Catalysts & Technologies and Technip Energies. Startups will be able to collaborate with leadership from Shell and Technip and have opportunities to work directly with their process engineering teams and develop potential partnerships, pilots and demonstrations, according to Greentown.

This year's manufacturing cohort focuses specifically on process technology and catalytic innovations, which, according to Greentown, have the potential to be a "critical enabler of the global energy transition." Greentown shares that 90 percent of chemical processes depend on catalysis, but traditional methods rely on fossil fuels and consume significant amounts of energy.

“Catalysis underpins the majority of industrial chemical processes, which together account for a significant share of global emissions, making it a critical lever for reducing carbon intensity while improving performance,” Georgina Campbell Flatter, CEO of Greentown, said in a news release. “Greentown Go Make 2026 is designed to close the gap between breakthrough innovation and industrial deployment. By connecting startups with Shell and Technip Energies’ technical expertise and global scale, we’re helping accelerate solutions that improve efficiency and drive industrial decarbonization.”

The five Greentown Go Make 2026 companies include:

  • Houston-based Biosimo, which makes scalable biochemicals from ethanol
  • Missouri-based Catalyxx, which transforms bioethanol into drop-in, cost-competitive, carbon-negative chemicals
  • Sydney, Australia-based HydGene Renewables, which produces low-carbon hydrogen and industrial chemicals from waste biomass
  • Switzerland-based TreaTech, which turns waste into renewable gas, water and minerals through catalytic hydrothermal gasification
  • California-based Unifuel, which has developed a chemical technology platform to make sustainable aviation fuel, renewable gasoline and other renewable chemicals

The cohort will be celebrated at a kickoff event in Houston at The Ion on June 9.

In addition to Greentown Go Make, Greentown also runs its Go Move (transportation), Go Energize (energy and electricity), Go Build (buildings), and Go Grow (food and agriculture) cohort-based programs. The climatech incubator announced its Go Build 2026 cohort in March. Read more here.

Houston energy leader Barbara Burger shared her key takeaways from CERAWeek 2025 with InnovationMap. Photo courtesy of CERAWeek

Houston energy expert shares key takeaways from CERAWeek 2025

guest column

What a difference a year makes.

I have been coming to CERAWeek for as long as I can remember and the Agora track within CERAWeek since it originated. Although freshness likely distorts my thinking, I cannot remember a CERAWeek that seemed so different from the previous year's than this one.

This certainly isn’t a comprehensive summary of the conference, but some of my key take forwards from last week's events.

It’s all about power.

It seemed like everyone associated with the power value chain showed up. Developers, turbine manufacturers, utilities, oil and gas, renewables, geothermal, nuclear, storage, hyperscalers, and lots of innovative companies that aim to squeeze more out of the grid we already have. Most of the companies embraced the “all of the above” sentiment and despite moderators (and some key notes) attempt to force technology picks, most didn’t take the bait.

Practical is in.

Real issues – choke points in supply chains and the workforce, permit timing, cost increases in new generation – were openly discussed both on the stage and in the countless meetings and meet ups in partner rooms and in open spaces throughout the Hilton Americas and the GR Brown.

AI was everywhere.

While there was an understanding that not all the power load growth is coming from AI and Data Centers, that segment was getting all the attention. AI went beyond the retail and human enablement to AI for Optimization and AI for Innovation. The symbiosis of Tech and Energy was evident – power is a constraint, and AI is a game changer. S&P (CERAWeek’s organizer) did a great job of weaving this theme across the conference in both the Executive and Agora sessions.

More gas… and less hydrogen.

Whether it was LNG or gas to power or methane emission management, the US’s dominance in gas was front and center. Hydrogen was largely absent from the Executive talks and where it was topical in the Agora sessions, the need for better economics was made clear.

Consistency and balance are needed for this sector.

I am unsure whether it is a “stay calm and carry on” approach, as one leader fashioned, or rather a “carry on” message and imperative. Phrases like “one extreme to another” were heard on stage and in the hallways. The oil and gas CEOs talked more openly about their base business than they had in the last four years but they also talked about their decarbonization activities as well as commercialization of new technologies and value chains.

The macro-economic picture cast long shadows.

While few talks onstage addressed tariffs, consumer sentiment, inflation and unemployment (including those from government officials), the talks in the halls and private meetings certainly did. And while some argued that “the end justifies the means,” it wasn’t an argument that most seemed to buy into.

There is a lot of tripping up on labels.

Politics makes our sector more polarizing than it should or needs to be. Climatetech, Sustainability, Cleantech – some were labels with broad objectives, and some were meant to be binary or exclusionary. "Energy Transition" for some meant a binary replacement of fossil fuels with renewables, and for others, it meant an evolution of a system in multiple dimensions. In any event, a lot of energy is being spent on the labels and the narratives. I don’t have an easy answer for this other than to fall back to longer discussions and less use of labels that have lots of meanings and can quickly move a constructive discussion onto the third rail.

Collaboration is key and vital in this uncertain world.

The attendance of approximately 10,000 spanned the breadth of energy, those who make, move, and use it from around the globe—in other words, everyone—with a strong tone of inclusion. CERAWeek, after all, is all about convening and collaboration, and this played out in the programming and the networking. The messages about practicality, consistency, balance and “all of the above” and the storm clouds of the extremes seemed to put everyone in a similar boat: Am I being too hopeful that this will lead to more and more collaboration within the sector to advance the multiple aims of affordability, reliability, security, resiliency and sustainability?

The next-generation workforce is a strategic imperative.

The NextGen cohort in Agora was launched with 100+ graduate students from all over coming to see the energy sector close up. Kudos to S&P for making this investment and to all the conference attendees who spent time talking to the students about their research, their interests, and, importantly, sharing their career stories. Relationships were born at CERAWeek.

Houston showed well for the conference and Mother Nature played nice. The days were sunny and dry, and the evening temperatures fit the outdoor events well. The schedule and pace of CERAWeek is exhausting, and most people were worn out by Thursday.

CERAWeek 2025 is in the books; the connections made, and messages heard set the tone for the year ahead.

Until CERAWeek 2026.

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Barbara J. Burger is a startup adviser and mentor. She is the independent Director of Bloom Energy and is an advisor to numerous organizations, including Lazard Inc., Syzygy Plasmonics, Energy Impact Partners and others. She previously led corporate innovation for two decades at Chevron and served on the board of directors for Greentown Labs.

Three startups with Houston ties and sustainable solutions were named winners of the Sustainable Aviation Challenge. Photo via Cameron Casey/Pexels

3 Houston climate tech companies win challenge for sustainable aviation

winner, winne

Greentown Houston companies have made the list of companies working toward sustainable aviation technology.

Cemvita and Verne, two Greentown Houston members, and C2V Initiative Year 1 participant Air Company were all named as winners of the World Economic Forum’s Sustainable Aviation Challenge, which will net the winners visibility opportunities, curated introductions to industry partners and potential funders, and other event invitations.

“We look forward to start collaborating with fellow winners and challenge partners to support the decarbonization of the aviation sector,” Cemvita writes in a statement on LinkedIn.

The Sustainable Aviation Challenge on UpLink included innovators who accelerate the adoption and development of sustainable aviation fuel and other propulsion solutions. Aviation accounts for 2 percent of global greenhouse gas emissions and air travel is projected to increase over this decade according to the International Energy Agency. The challenge is to reinvent flying and make it compatible with our global net-zero emissions targets. Decarbonizing aviation is one of the goals to help with the goal of global net-zero emissions.

Cemvita’s eCO2™ helped garner the Houston company its spot in the Sustainable Aviation Challenge. The eCO2 takes waste streams and carbon dioxide and uses them to produce valuable materials like plastics,proteins, and fuel feedstock through microbiology. Cemvita also plans to remove 250 million tons per year from the atmosphere by 2050, according to their website.

Last fall, Cemvita Corp. announced a new offtake arrangement with United Airlines. Cemvita's first full-scale sustainable aviation fuel plant will provide up to 1 billion gallons of SAF to United Airlines. The 20-year contract specifies that Cemvita will supply up to 50 million gallons annually to United.

See the full list of World Economic Forum’s Sustainable Aviation Challenge winners here.
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8 must-attend Houston energy events happening in November 2026

Mark your calendars

Editor's note: The November calendar is front-loaded with events for those in Houston's energy sector. From annual summits to an expo exploring AI and energy, these are the events you'll want to register for this month.

Nov. 2 — Energy Leadership Speaker Series

Join UH Energy for a conversation with Jason Wells, Chair, President, and Chief Executive Officer of CenterPoint Energy. The Energy Leadership Speaker Series is a year-long program featuring 12 expert-led sessions covering topics from energy leadership to AI and data science in energy operations. The November topic is "Grid Modernization & The Electricity Revolution."

This event begins at 4:15 pm on November 2 at the University of Houston. Find details here.

Nov. 3-4 — Next-Gen AI for Energy Summit 2026

The summit brings together over 600 senior executives from energy, technology, policy, and investment communities worldwide to explore six strategic areas: operational optimization, digital infrastructure, finance, digital twins, risk management, cybersecurity, and AI-driven market and regulatory strategies. The summit is co-located with EnergyTech X, an invite-only forum connecting energy innovators, AI founders, startups, and investors to scale next-generation energy technologies.

This event begins Nov. 3 at the Intercontinental Houston. Register here.

Nov. 3-5: 17th Annual Operational Excellence in Oil & Gas Summit

The 17th Annual Operational Excellence in Oil & Gas Summit will focus on aligning technology, process, and workforce to balance reliability, resilience, and operational cost. It will feature case studies on AI adoption, asset management, and workforce modernization.

This event begins Nov. 3 at Norris Conference Center. Register here.

Nov. 4-5 — 2026 OPIS Global LPG Conference: Powering Global Connectivity

This November, industry leaders, traders, producers, and infrastructure stakeholders will once again converge in Houston—the world’s LPG hub—for the 2026 OPIS Global LPG Conference. The conference will cover the global LPG market, which is entering a new phase of structural evolution, and how the industry is moving from managing volume to mastering the connectivity between expanding supply hubs and global energy and petrochemical demand.

This event begins Nov. 4 at the Royal Sonesta Houston Galleria. Register here.

Nov. 4-6: SAF North America Congress 2026

The aviation and energy value chains will gather in Houston once again to help shape the future of Sustainable Aviation Fuel (SAF) in North America. The focus will be on safeguarding progress made to date and ensuring SAF remains central to energy and climate strategies.

This event begins Nov. 4 at Marriott Marquis Houston. Register here.

Nov. 11: BNEF Summit Houston 2026

The BNEF Summit Houston 2026 will explore how AI-driven demand, geopolitical tensions, and electrification are reshaping energy systems at unprecedented speed. Bringing together 600 leaders across energy, tech, digital infrastructure and finance, the summit will address the race to build power, infrastructure, and supply chains — and who will fund, deliver, and benefit from the next phase of growth.

This event takes place Nov. 11 at Post Oak Houston. Register here.

Nov. 11-12: Energy Supply Chain & Procurement Summit

For 12 years, the Energy Supply Chain and Procurement Summit has brought senior procurement, supply chain, and logistics leaders to Houston — from operators, EPCs, utilities, service and equipment providers, and the suppliers they depend on. At the 2026 summit, leaders will discuss what production growth is doing to sourcing, supplier risk, and assurance of supply, and what’s working.

This event begins Nov. 11 at Houston Marriott Uptown. Register here.

Nov. 18-19: American Data Centers & AI Conference and Exhibition 2026

Set to redefine the intersection of energy and digital infrastructure, the American Data Centers & AI Conference and Exhibition convenes in Houston for its second annual event. The event will address the increasing demand for high-performance computing and the sustainable development of AI infrastructure, which requires significant power. Participants can expect to learn about practical solutions in energy integration, modern data center design, and scalable approaches. The agenda includes presentations from leading experts, demonstrations of new technologies for thermal management and grid optimization, and detailed discussions on AI's environmental impact and how to reuse generated heat.

This event begins Nov. 18 at the Double Tree Hotel at Greenway Plaza. Register here.

Utah solar company acquires Houston projects, expands to Texas

solar deals

Utah-based solar technology and battery storage company SunPower has announced its expansion into Texas by acquiring “prime project assets” from Houston installer Green Light Solar.

As part of the deal, Green Light Solar CEO James Garrett will lead SunPower’s U.S. installation group. Garrett is based in the Houston area, according to LinkedIn.

Green Light Solar focuses on residential and commercial solar installations, battery backups and whole-home generators throughout Texas, Louisiana, Oklahoma and Colorado. As of press time, SunPower had not disclosed which specific projects or assets were included in the acquisition.

In addition to the Green Light acquisition, SunPower also announced its second strategic partnership with Fort Worth-based SOLRITE Energy, which provides solar and battery project financing and virtual power plant capabilities.

Through the partnership, SunPower plans to expand its residential solar and battery storage business and grow its virtual power plant (VPP) network in Texas.

A virtual power plant is a network of connected energy sources that can supply electricity to the grid when demand is high. The network draws on energy stored in individual residential and commercial battery systems. VPPs can also help participating homeowners generate additional revenue by selling their stored power.

“SOLRITE not only sources projects to us but also provides project funding for innovative systems with large batteries connected to a VPP, enabling power sales into the open market,” T. J. Rodgers, SunPower CEO, said in a news release. “That VPP capability provides an extra source of income that SOLRITE shares with homeowners and EPCs, making SOLRITE an attractive partner.”

SunPower will bring its sales, installation and lifetime warranty support to the partnership, while SOLRITE will provide its virtual power plant platform and solar financing capabilities, according to the release.

"Building our VPP business is a key part of SunPower’s growth strategy going forward,” Kapil Rai, EVP of Direct at SunPower, added in the release. “Our partnership with SOLRITE gives us a path to bring together customer acquisition, solar, storage deployment, and financing to develop this business in Texas and beyond.”

Solid-state generator company secures $9M in financing, names CTO

fresh financing

ATS Energy has secured a $9 million investment to help commercialize its solid-state generator technology, a representative from the company tells Energy Capital.

The Colorado-based company is a member of Houston's Greentown Labs climatech community and was named the second most-promising startup in the Innovations for Traditional Energy, Electricity, & the Grid track during CERA Week's Energy Venture Day and Pitch Competition in March.

ATS's technology converts industrial waste heat into electricity via its proprietary thermoelectric cartridges, according to a news release. The cartridges convert the otherwise wasted thermal energy directly into usable electricity with no turbine, no moving parts and no emissions.

"We have spent years building a proven track record of breakthrough technology," Doug Hudson, CEO of ATS Energy, said in the release. "What has developed over the past year is that markets are moving toward ATS Energy, said in the release. We've moved well beyond early interest to commercial commitments, active proposals and a pipeline that continues to expand across multiple industrial sectors. That puts us in a tremendous position to meet the moment in delivering energy to industry. This investment responds to real commercial opportunity, and it positions ATS Energy to scale production, meet customer demand faster, and drive commercial deployments."

According to the release, ATS plans to complete and deploy its first commercial generator using the thermoelectric cartridges by mid-2027. The company shared that it plans to begin revenue-generating operations next year, as well.

ATS has also named Edward Ganja as its new CTO. Ganja previously served as a technology advisor for ATS and spent more than 30 years at Shell, most recently as vice president of catalyst and analytical technology in Houston, according to LinkedIn.

"Having worked closely with the team as a Technology Adviser, I am thrilled to step into the Chief Technology Officer role to lead our technology strategy and advanced materials scale-up," Ganja shared in a LinkedIn post. "ATS is tackling crucial energy challenges, and I look forward to working with our talented team, partners, and industry colleagues to accelerate our commercial development and technological footprint."

A representative from the company shares that ATS has three employees in Texas, including two in Houston. The company is targeting industrial facilities, including Gulf Coast refineries and petrochemical plants, for its production model, which will leverage established manufacturing capabilities to help quickly scale its commercial pipeline.

"We are scaling manufacturing with the discipline required for commercial-grade industrial deployment, moving beyond proof-of-concept to deliver mission-critical equipment," Terry Hill, COO of ATS, added in the release. "We've been building the supply chain, identifying the right manufacturing partners and putting the processes in place to move toward repeatable production. By leveraging contract manufacturing, we can focus our capital on the technology, the product and our customers rather than building factories. Just as importantly, we're working to reduce the time between installations so we can respond to the demand we're seeing in the market."

ATS won the prestigious Earthshot Prize in the Fix Our Climate category in 2024. The Earthshot Prize, founded by Prince William, awards £1 million to five energy startups each year over a decade.