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.

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Cemvita expands in Brazil with acquisition, new leader

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Houston industrial biotech company Cemvita has announced two strategic moves to advance its operations in Brazil.

The company, which utilizes synthetic biology to transform carbon emissions into valuable bio-based chemicals, acquired a complementary technology that expands its IP and execution of scale-up capacity, according to a news release. The acquisition will bring additional synthetic biology toolsets that Cemvita believes will assist with compressing and commercializing timelines.

The company also appointed Luciano Zamberlan as vice president of operations based in Brazil.

Zamberlan will lead operational execution, site readiness and early commissioning activities in Brazil. He brings more than 20 years of experience in biotechnology to the role. He recently served as director of engineering at Raízen, Brazil’s largest ethanol producer and the world’s largest producer of sugarcane ethanol. At Raízen, he coordinated the implementation of four greenfield plants and oversaw operational teams and process optimization for second-generation ethanol (E2G) and biogas.

“I am very pleased to join Cemvita, a company at the forefront of transforming waste into valuable, sustainable resources,” Zamberlan said in the release. “My expertise in scaling-up innovation, coupled with my experience in structuring and commissioning greenfield industrial operations, is perfectly aligned with Cemvita's mission and I'm eager to bring my energy and drive to accelerate Cemvita's industrial performance and contribute for a circular future.”

Cemvita expanded to Brazil in January to help capitalize on the country’s progressive regulatory framework, including Brazil’s Fuel of the Future Law, enacted in 2024. The law mandates an increase in the biodiesel content of diesel fuel, starting from 15 percent in March and increasing to 20 percent by 2030. It also requires the adoption of Sustainable Aviation Fuel (SAF) and for domestic flights to reduce greenhouse gas emissions by 1 percent starting in 2027, growing to 10 percent reduction by 2037.

“These steps enable us to augment Brazil’s longstanding bioindustrial ecosystem with next-generation capabilities, reducing early commercialization risk and expanding optionality for future product platforms,” Marcio Silva, CTO of Cemvita, said in the news release. “Together, they strengthen our ability to move from proof-of-concept to industrial reality.”

Greentown Labs partners with California software developer on new center

power partnership

Greentown Labs has partnered with Los Angeles-based software development firm Nominal to launch the new Industrial Center of Excellence at Greentown's Houston incubator.

Nominal will provide access to its connected test and operations stack to help engineers working at Greentown Houston startups boost their "efficiency, automation, and scalability," according to a news release. The news comes just a few days after Greentown announced a partnership with Houston-based EnergyTech Nexus, which will also open an investor lounge on-site.

"Our mission is to remove friction for innovative entrepreneurs, so they can rapidly scale their transformative solutions," Lawson Gow, Greentown's Head of Houston, said in the release. "The Industrial Center of Excellence with Nominal will complement Greentown's robust prototyping, equipment, and lab offerings to accelerate entrepreneurs' ability to bring disruptive technologies out of the lab and into the world."

According to Greentown and Nominal, the partnership will support startups that are focused on decarbonizing the manufacturing sector, which Greentown estimates represents about a third of startups in its Houston incubator.

The new center will host specialized workshops and Nominal will now offer weekly office hours for Greentown startups.

"The future belongs to teams who can deliver resilient hardware faster than anyone else," Bryce Strauss, co-founder of Nominal, added in the statement. "Competitive edge is defined by test velocity. Nominal is building a connected stack of software tools where every discipline works shoulder-to-shoulder to make confident, real-time decisions."

Nominal, which supports engineering work in the aerospace, energy, automotive and defense industries, closed a $75 million series B round this summer.