Daikin is the world’s leading air conditioning and refrigeration company, with its US headquarters and North America manufacturing facility based in Waller, Texas. Photo via htxenergytransition.org

In the energy capital of the world, we often think and talk about the energy transition and low carbon solutions in the context of energy production and distribution – whether it’s adding more renewables to the grid, reducing the CO2 emissions of our existing energy resources with CCUS and Hydrogen, developing energy storage technology to manage intermittency, or deploying other innovative solutions designed to produce or deliver more energy with fewer emissions – Houston is leading on all fronts.

But these aren’t the only solutions needed as we seek to solve one of the most challenging issues of our time. We cannot focus only on innovating the production and distribution of energy. As the demand for energy grows, locally and globally, we must also think innovatively about reducing the demand for energy, while still maintaining, and improving, quality of life. I had the opportunity recently to visit a company that is doing just that, right here in the Houston region.

Daikin is the world’s leading air conditioning and refrigeration company, with their US headquarters and North America manufacturing facility based right here, just 30 minutes northwest of downtown Houston in Waller, Texas. The Daikin Texas Technology Park, a 4.2 million ft2 facility, equal to 74 football fields, is dedicated to developing, manufacturing and marketing innovative solutions for meeting its customers’ needs while also reducing the energy required to keep people cool. Currently, air conditioning accounts for around 10% of global electricity consumption, with rapid demand growth expected in the future. As electrification becomes a key pathway to the decarbonization of various industries, demand for low-carbon power will continue to grow.

Achieving an affordable, reliable, and low-carbon future will require innovation across the entire energy value chain – from production to consumption, and, as the world’s leading air conditioning manufacturer, Daikin, is leading the way in developing innovative solutions to achieve optimum comfort and energy savings.

Three things struck me during my recent visit to the Daikin Texas Technology Park (DTTP):

  1. Innovation is at the heart of their operation. The integration of engineering and manufacturing in a single location facilitates collaboration and product innovation and accelerates implementation. The LEED Gold Certified facility was also innovatively designed to maximize energy efficiency and minimize environmental impact.
  2. People are a priority. The diversity of the 8000+ employees working at the DTTP was incredible. During the visit, we had the opportunity to see team members from many different backgrounds and with various skills and education working in all parts of their operation. They also offer a STEM scholarship program in partnership with the Waller Area Chamber of Commerce.
  3. They are environmentally focused. Daikin is fully committed to providing energy solutions that improve quality of life while also reducing environmental impact through improved efficiency. The heating and air conditioning products manufactured at the DTTP are some of the most innovative and energy efficient products on the market today – producing a more even temperature and offering as much as a 30% reduction in energy use compared to standard AC systems, all with a considerably smaller footprint.

As someone who spends a great deal of time thinking about the pathways to solving the global dual challenge of more energy with fewer emissions, much of my time is spent learning about innovations on the supply side of energy. It is exciting to learn that there is just as much innovation happening on the demand side of energy – and to see it happening right here in Houston.

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This article was written by Jane Stricker, executive director and senior vice president of theGreater Houston Partnership's Houston Energy Transition Initiative and originally ran on the HETI 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.

To learn more about Daikin’s entire line of innovative heating and air conditioning products and how they are Perfecting the Air, visit the Daikin global website.

The inaugural Activate Houston cohort has 11 fellows across energy, materials, life sciences, space, and other sectors. Photo via activate.org

6 energy transition innovators named to inaugural Houston hardtech fellowship cohort

onboarding

A national hardtech-focused organization has named its 2024 batch of innovators, which includes the inaugural Houston-based cohort.

Activate named 62 fellows and 50 companies for is latest class, which spans Berkley, California — where the organization is based, Boston, New York, and Houston. Additionally, Activate Anywhere, the program's virtual and remote cohort, was named. According to Activate, it received over 1,000 applicants.

“People, not ideas alone, move the world forward. It is through the drive and determination of brilliant scientists and engineers that we are witnessing true progress,” says Activate CEO Cyrus Wadia in a news release. “Our current Activate Fellows and alumni are already pioneering innovative solutions that make a measurable difference. We’re thrilled to support the next 62 visionaries who will lead the charge in addressing our most urgent issues through groundbreaking science and technology.”

It's the first year Activate has hosted a Houston-based cohort. The organization initially announced its expansion early last year. The inaugural cohort has 11 fellows across energy, materials, life sciences, space, and other sectors.

The named Houston fellows who are working on energy transition solutions include:

  • Krish Mehta, founder and CEO of Phoenix Materials, a company that decarbonizes concrete using industrial waste.
  • Gabriel Cossio, founder and CEO of Nanoscale Labs, which is developing a high-throughput and low-cost nanomanufacturing system.
  • Matthew McDermott, founder and CEO of Refound Materials, a materials technology company developing more efficient synthesis recipes for accelerated materials discovery.
  • Alec Ajnsztajn, founder and CEO of Coflux Purification, a company that's creating a product that allows industries and water providers to cheaply remove forever chemicals to provide safe drinking water at a fraction of current energy use.
  • Ryan DuChanois and Yang Xia , co-founders of Solidec, a Houston-based startup redefining chemical manufacturing.

The rest of the cohort includes:

  • Meagan Pitcher, co-founder and CEO of Bairitone Health, which brings advanced imaging diagnostics into the home environment.
  • Wei Meng, co-founder and CEO of LumiStrain, a startup offering novel technology for mechanical strain mapping.
  • Sonia Dagan of Atolla Tech, which is developing a lidar and machine-learning algorithm for identifying and quantifying airborne insects.
  • Rodrigo Alvarez-Icaza, founder and CEO of Elysium Robotics, a company that's replacing electric motors with muscle-like actuators to enable massive deployment of highly capable and low-cost robotic systems.
  • Blake Herren, CEO and Co-founder of Raven Space Systems, which is modernizing composite manufacturing with 3D printing and Industry 4.0 solutions to build the factories of the future.
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Houston geothermal company raises $97M Series B

fresh funding

Houston-based geothermal energy startup Sage Geosystems has closed its Series B fundraising round and plans to use the money to launch its first commercial next-generation geothermal power generation facility.

Ormat Technologies and Carbon Direct Capital co-led the $97 million round, according to a press release from Sage. Existing investors Exa, Nabors, alfa8, Arch Meredith, Abilene Partners, Cubit Capital and Ignis H2 Energy also participated, as well as new investors SiteGround Capital and The UC Berkeley Foundation’s Climate Solutions Fund.

The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. The Nevada-based company has geothermal power projects in the U.S. and numerous other countries around the world. The facility will use Sage’s proprietary pressure geothermal technology, which extracts geothermal heat energy from hot dry rock, an abundant geothermal resource.

“Pressure geothermal is designed to be commercial, scalable and deployable almost anywhere,” Cindy Taff, CEO of Sage Geosystems, said in the news release. “This Series B allows us to prove that at commercial scale, reflecting strong conviction from partners who understand both the urgency of energy demand and the criticality of firm power.”

Sage reports that partnering with the Ormat facility will allow it to market and scale up its pressure geothermal technology at a faster rate.

“This investment builds on the strong foundation we’ve established through our commercial agreement and reinforces Ormat’s commitment to accelerating geothermal development,” Doron Blachar, CEO of Ormat Technologies, added in the release. “Sage’s technical expertise and innovative approach are well aligned with Ormat’s strategy to move faster from concept to commercialization. We’re pleased to take this natural next step in a partnership we believe strongly in.”

In 2024, Sage agreed to deliver up to 150 megawatts of new geothermal baseload power to Meta, the parent company of Facebook. At the time, the companies reported that the project's first phase would aim to be operating in 2027.

The company also raised a $17 million Series A, led by Chesapeake Energy Corp., in 2024.

Houston expert discusses the clean energy founder's paradox

Guest Column

Everyone tells you to move fast and break things. In clean energy, moving fast without structural integrity means breaking the only planet we’ve got. This is the founder's paradox: you are building a company in an industry where the stakes are existential, the timelines are glacial, and the capital requires patience.

The myth of the lone genius in a garage doesn’t really apply here. Clean energy startups aren’t just fighting competitors. They are fighting physics, policy, and decades of existing infrastructure. This isn’t an app. You’re building something physical that has to work in the real world. It has to be cheaper, more reliable, and clearly better than fossil fuels. Being “green” alone isn’t enough. Scale is what matters.

Your biggest risks aren’t competitors. They’re interconnection delays, permitting timelines, supply chain fragility, and whether your first customer is willing to underwrite something that hasn’t been done before.

That reality creates a brutal filter. Successful founders in this space need deep technical knowledge and the ability to execute. You need to understand engineering, navigate regulation, and think in terms of markets and risk. You’re not just selling a product. You’re selling a future where your solution becomes the obvious choice. That means connecting short-term financial returns with long-term system change.

The capital is there, but it’s smarter and more demanding. Investors today have PhDs in electrochemistry and grid dynamics. They’ve been burned by promises of miracle materials that never left the lab. They don't fund visions; they fund pathways to impact that can scale and make financial sense. Your roadmap must show not just a brilliant invention, but a clear, believable plan to drive costs down over time.

Capital in this sector isn’t impressed by ambition alone. It wants evidence that risk is being retired in the right order — even if that means slower growth early.

Here’s the upside. The difficulty of clean energy is also its strength. If you succeed, your advantage isn’t just in software or branding. It’s in hardware, supply chains, approvals, and years of hard work that others can’t easily copy. Your real competitors aren’t other startups. They’re inertia and the existing system. Winning here isn’t zero-sum. When one solution scales, it helps the entire market grow.

So, to the founder in the lab, or running field tests at a remote site: your pace will feel slow. The validation cycles are long. But you are building in the physical world. When you succeed, you don’t have an exit. You have a foundation. You don't just have customers; you have converts. And the product you ship doesn't just generate revenue; it creates a legacy.

If your timelines feel uncomfortable compared to software, that’s because you’re operating inside a system designed to resist change. And let’s not forget you are building actual physical products that interact with a complex world. Times are tough. Don’t give up. We need you.

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Nada Ahmed is the founding partner at Houston-based Energy Tech Nexus.

Houston maritime startup raises $43M to electrify cargo vessels

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."