The convergence of green banking with evergreen experimentation in support of a growing green economy sounds like just the right shade of green. Photo by micheile henderson/Unsplash

The term “Energy Transition” doesn’t merely imply change, it demands it. And with change comes another kind of change–usually of the dollars and cents kind.

While many aspire to embrace more sustainable and cleaner energy solutions in their communities, the affluence needed to deploy necessary infrastructure often sits just outside of reach. Until now, that is.

With the rise of “green banking,” securing financing for the adoption of energy efficiency, implementation of decarbonization technologies, and broader provision of renewable energy is now more accessible. Funds at green banks, backed by a blend of public and philanthropic contributions, tap into the modern trend of crowdfunding to support egalitarian and climate improvement efforts.

However, green bank financing is structured with repayment of–or a return on–capital expected at the end of the term, meaning approval tends only to be granted to proven and established projects well past the research and development stage. Given the Energy Transition is, for the most part, still in its infancy, clearing such hurdles can be difficult.

But Houston is full of dreamers and doers; researchers and entrepreneurs eager to tackle the next big challenge. It would come as no surprise then, that Texas’ first green bank, the Clean Energy Fund of Texas (“CEFTx”), bucks tradition with a novel Memorandum Of Understanding (“MOU”) co-signed by the Houston Advanced Research Center (“HARC”) to finance efforts staunchly entrenched in R&D activity.

As the Energy Transition foothold grows, Houstonians are compelled not just to invest in green initiatives, but to drive them. Which only makes sense, considering the deep expertise in energy innovation led most recently by the Houston-area shale revolutionaries from Mitchell Energy. Established over 40 years ago by George P. Mitchell himself, HARC plants the seeds of transformation at the intersection of science, resilience, sustainability, and the environment.

Per the March 29 news release from CEFTx, John Hall, President & CEO of HARC says, “We are excited to join forces with the team at Clean Energy Fund of Texas as they drive green investment in low-income and disadvantaged communities. Our research expertise and experience in managing state and federal grants will be a true benefit to Texans.”

The recent MOU brings Energy Transition visionaries the capital necessary to explore, test, develop, and deploy innovative solutions from conception to maturity. Entrepreneurs at all stages of the business lifecycle are encouraged to apply for funding on the CEFTx website or connect with HARC at an upcoming event to discover how the two entities can take ideas from dream to reality.

“It’s an honor to work with the esteemed researchers at HARC, who have been studying sustainability for decades,” says Stephen Brown of CEFTx in the release. “Together we can be even more effective at kickstarting investments in solar power, retrofits, and other technologies that help create the green workforce of tomorrow.”

The fresh approach to funding set up by CEFTx and HARC positions new companies to succeed and enables existing companies to progress in the transition to a more sustainable #futureofenergy. It’s just the sort of sense that is needed to truly drive change.

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Houston startup wins Space Force contract to advance quantum energy generator

quantum contract

Houston-based quantum energy technology startup Casimir Inc. has been awarded an STTR Phase I contract from the U.S. Space Force's SpaceWERX to support the development of the company's solid-state generator for potential use by the Department of the Air Force.

SpaceWERX is the innovation arm of the U.S. Space Force and a division within AFWERX, the incubator and innovation arm of the United States Department of the Air Force. The Air Force Research Laboratory and SpaceWERX, along with many other government agencies, help support innovation through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) grants and contracts.

As part of the new contract, Casimir will work to refine a fully independent generator. Casimir’s solid-state power technology could support national security missions by providing reliable power even in difficult-to-service environments.

In May, Casimir emerged from stealth, netting a $12 million seed round to commercialize its quantum energy chip. The semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company aims to include the chips in large-scale energy systems that can power homes, commercial infrastructure and electric vehicles.

“This STTR funds some analysis work to address our proposed scaling approach of making our chips multi-layer to increase aggregate power,” Harold “Sonny” White, founder and CEO of Casimir, tells Energy Capital.

White adds that the company will work with Texas A&M to develop chip planarization techniques to support Casimir’s plans to scale. Additionally, White says the company is working with the U.S. Space Force to explore more applications for its technology.

“Casimir’s technology brings a new capability to the market in the form of our persistent power chips,” White adds. “This approach will be relevant to ultra-low-power electronics, and with the scaling approach we are developing, connected with the STTR work, will eventually be relevant to consumer electronics and beyond.”

Casimir has previously reported that it plans to commercialize its first-generation MicroSparc chip by 2028. The chips are expected to power devices for years without the need for replacements.

The total funding for this project has not yet been disclosed.

Houston clean energy tax compliance platform tops the Inc. 5000 in 2026

Top of the List

Houston-based Empact Technologies has ridden the clean energy wave to the Inc. 5000’s 30 fastest-growing private companies.

With three-year revenue growth of 8,275 percent, the clean energy tax credit compliance management platform appears at No. 27 on this year’s Inc. 5000 list. The 2026 list ranks private companies based on percentage revenue growth from 2022 to 2025.

Empact Technologies, also ranks as the No. 2 fastest-growing company in Houston and the No. 4 fastest-growing company in Texas.

Originally founded by Charles Dauber in 2012, Empact Technologies relaunched in 2023 as a purpose-built tool for clean energy tax credit compliance, following the creation of the Inflation Reduction Act, the largest clean energy investment incentive in U.S. history.

It provides a platform for clean energy developers, investors, and contractors, and combines its NexusIQ AI-native compliance platform with a dedicated team of technical and regulatory experts to ensure ongoing compliance and documentation.

Empact Technologies is joined by six other Houston-area companies in the top 250 of this year's Inc. 5000, including one that made the top 10.

Here are the six other Houston-area companies that claimed spots in the top 250 on the Inc. 5000 list. Each company name is followed by its ranking, headquarters city, and three-year growth rate.

  • No. 6 Equipe Realty, 23,210 percent
  • No. 60 Action1, 4,512 percent
  • No 75 Signs By G, 3,684 percent
  • No. 79 The ’Pause Life, 3,469 percent (Galveston)
  • No. 110 Turtlebox Audio, 2,576 percent
  • No. 178 Dahnani Private Equity Group, 1,904 percent (Stafford)
Empact and fellow honorees will be recognized Oct. 14-16 at the 2026 Inc. 5000 Conference & Gala in Dallas.

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A version of this article first appeared on InnovationMap.com.

Sage Geosystems brings South Texas geothermal plant online

powering up

Houston-based Sage Geosystems, a provider of geothermal power, has begun full operations at its South Texas facility for the San Miguel Electric Cooperative.

Sage says the plant was recently “placed in service,” according to a news release. This means it’s fully built and tested, and ready to generate and supply electricity to the grid.

Since selling its first electricity in Q2 of this year, the facility has been operating for more than four months to evaluate aspects like efficiency and water management. Sage relied on its GeoTwin modeling tool to carry out some of the testing.

The testing demonstrates Sage’s proprietary approach to geothermal power “overcomes one of the industry’s most persistent challenges, high water losses in engineered reservoirs, while delivering the consistent performance required to scale next-generation geothermal,” co-founder and CEO Cindy Taff said in the release.

Sage says the South Texas facility will serve as a model for future projects, including one in Nevada. The Nevada facility will use Sage’s proprietary technology to extract geothermal heat from hot dry rock, creating a reliable, affordable source of carbon-free power.

During the testing period, water losses amounted to less than 10 percent. This low rate indicates most water remains in the system, enabling Sage to capture more usable energy, boost power production and improve the project’s finances, the company says.

“Commercial geothermal isn’t just about creating a reservoir. It’s about creating one whose performance can be engineered, predicted, and consistent,” Lev Ring, the company’s co-founder, president and chief technology officer, said in the release.

Since being founded in 2020, Sage has raised $159 million in outside funding. This includes a more than $97 million Series B round co-led by Ormat Technologies and Carbon Direct Capital.

Two years ago, Sage announced a deal with Meta Platforms, the parent company of Facebook and Instagram, to supply up to 150 megawatts of geothermal power to Meta data centers.