Houston geothermal startup secures $97M Series B for next-gen power

fresh funding

Sage Geosystems has raised a $97 million Series B. Photo via sagegeosystems.com.

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.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.

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Sameer Soleja is the founder and CEO of Molecule, which just closed its series B round. Photo courtesy of Molecule Software

Houston energy tech startup Molecule closes series B funding round

Big Bang

Houston-based energy trading risk management (ETRM) software company Molecule has completed a successful series B round for an undisclosed amount, according to a July 16 release from the company.

The raise was led by Sundance Growth, a California-based software growth equity firm.

Sameer Soleja, founder and CEO of Molecule, said in the release that the funding will allow the company to "double down on product innovation, grow our team, and reach even more markets."

Molecule closed a $12 million Series A round in 2021, led by Houston-based Mercury Fund, and has since seen significant growth. The company, which was founded in 2012, has expanded its customer base across the U.S., U.K., Europe, Canada and South America, according to the release.

Additionally, it has launched two new modules of its software platform. Its Hive module, which debuted in 2022, enables clients to manage their energy portfolio and renewable credits together in one scalable platform. It also introduced Elektra, an add-on for the power market to its platform, which allows for complex power market trading.

"Four years ago, we committed to becoming the leading platform for energy trading," Soleja said in the release. "Today, our customers are managing complex power and renewable portfolios across multiple jurisdictions, all within Molecule.”

Molecule is also known for its data-as-a-lake platform, Bigbang, which enables energy ETRM and commodities trading and risk management (CTRM) customers to automatically import trade data from Molecule and then merge it with various sources to conduct queries and analysis.

“Molecule is doing something very few companies in energy tech have done: combining mission-critical depth with cloud-native, scalable technology,” Christian Stewart, Sundance Growth managing director, added in the statement.

“Sameer and his team have built a platform that’s not only powerful, but user-friendly—a rare combination in enterprise software. We’re thrilled to partner with Molecule as they continue to grow and transform the energy trading and risk management market.”

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This article originally appeared on EnergyCapitalHTX.com.

This week we're revisiting an episode of the Houston Innovators Podcast, which features Josh Teekell, founder and CEO of SmartAC.com. Photo courtesy

Play it back: Houston home tech startup begins 2025 with fresh funding

HOUSTON INNOVATORS PODCAST EPISODE 272

One of the dozen or so Houston startups kicking of the new year with fresh funding is SmartAC.com, a company that's designed a platform that enables contractors in the HVAC and plumbing industries to monitor, manage, and optimize their maintenance memberships through advanced sensors, AI-driven diagnostics, and proactive alerts.

Last month, the SmartAC.com raised a follow-on round with support from local investor Mercury to continue growth and expansion of the product, which has evolved on many ways since the company launched in 2020, emerging from stealth with $10 million raised in a series A. In a May 2023 interview for the Houston Innovators Podcast, Founder and CEO Josh Teekell explained how he embraced the power of a pivot.

The company's sensors can monitor all aspects of air conditioning units and report back any issues, meaning homeowners have quicker and less costly repairs. While SmartAC.com started with providing the service and tech to homeowners directly, Teekell says he's had a greater interest in working with plumbers and HVAC companies who then deploy the technology to their customers.

"It became quite evident that homeowners don't care about air conditioning really at all until their system breaks," Teekell says on the show. "The technology is really built around giving those contractors as another way to gain a customer relationship and keep it."

Revisit the podcast episode below where Teekell talks about SmartAC.com's last raise.

SmartAC.com's previous round in 2023 — a $22 million series B — was used grow its team that goes out to deploy the technology and train the contractors on the platform.

"We've been very fortunate to get some of the biggest names in Houston on our cap table," Teekell says in the May 2023 conversation. "Since we're raising a bunch of money locally, everyone understands what a pain air conditioning can be."

A Houston company has raised funding. Photo via Getty Images

Houston superconductor tech manufacturer raises $25M

fresh funding

A Houston company has closed its series B extension at $25 million.

MetOx International, which develops and manufactures high-temperature superconducting (HTS) wire, announced it closed a $25 million series B extension. Centaurus Capital, an energy-focused family office, and New System Ventures, a climate and energy transition-focused venture firm, led the round with participation from other investors.

"MetOx has developed a robust and highly scalable operation, and we are thrilled to partner with the Company as it enters this pivotal growth stage," says John Arnold, founder of Centaurus, in a news release. "The market for HTS is expanding at an unprecedented pace, with demand for HTS far outweighing supply. MetOx is poised to be the leading U.S. HTS producer, closing the supply gap and bringing dramatic capacity to high power innovations and applications. Their progress and potential are unmatched in the field, and we are proud to support their growth."

The fresh funding will go toward advancing the company's Xeus HTS wire technology for key energy transition applications by expanding MetOx's U.S.-based manufacturing capabilities to meet demand.

"This funding marks a pivotal step in our mission to revolutionize the energy and technology sectors with our advanced power delivery technology and accelerate delivery for our customers and partners. HTS is critical to enhancing the efficiency of our electric grid and enabling technological developments that, in many cases, would not be viable or even possible without superconductor technology," adds Bud Vos, CEO of MetOx. "Support from investors such as Centaurus and NSV not only provides the financial resources and strategic support required for accelerated scaleup, but also validates the broad reach of our technology across energy, data center, medical, and defense industries."

HTS wire technology is critical for the energy transition, especially amid rising data center growth, and for next generation wind turbines and interconnections.

MetOx's technology originated out of the University of Houston and was founded in 1998 by Alex Ignatiev, UH professor emeritus of physics and a fellow of the National Academy of Inventors. Last year, the company secured $3 million in funding from the U.S. Department of Energy to support the advancement of its proprietary manufacturing technology for its HTS wire.

"MetOx's HTS technology aligns with our systems-level research and offers a unique opportunity to dramatically accelerate the energy transition," says Ian Samuels, founder and managing partner at NSV. "MetOx's Xeus wire stands to be a force multiplier in clean energy generation and high-power transmission and distribution, enabling load growth and the deployment of power-dense data centers. NSV is excited to support MetOx as it scales domestic manufacturing capacity."

The fresh funding will go toward advancing the company's Xeus HTS wire technology. Photo via metoxtech.com

Heimdall supplies software and sensors for monitoring overhead power lines. Photo via heimdallpower.com

Power grid tech co. with Houston HQ raises $25M series B

money moves

A Norway-based provider of technology for power grids whose U.S. headquarters is in Houston has raised a $25 million series B round of funding.

The venture capital arm of Polish energy giant Orlen, Norwegian cleantech fund NRP Zero, and the Norway-based Steinsvik Family Office co-led Heimdall Energy's round. Existing investors, including Investinor, Ebony, Hafslund, Lyse, and Sarsia Seed, chipped in $8.5 million of the $25 million round.

“This funding gives us fuel to grow internationally, as we continue to build our organization with the best people and industry experts in the world,” Jørgen Festervoll, CEO of Heimdall, says in a news release.

Founded in 2016, Heimdall supplies software and sensors for monitoring overhead power lines. The company says its technology can generate up to 40 percent in additional transmission capacity from existing power lines.

Heimdall entered the U.S. market in 2023 with the opening of its Houston office after operating for several years in the European market.

“Heimdall Power has built itself a unique position as an enabler for the ongoing energy transition, with fast-increasing electricity demand and queues of renewables waiting to get connected,” says Marek Garniewski, president of Orlen’s VC fund.

Heimdall says it will put the fresh funding toward scaling up production and installation of its “magic ball” sphere-shaped sensors. In the U.S., these sensors help operators of power grids maximize the capacity of the aging power infrastructure.

“In the United States alone, there are over 500,000 miles of power lines — most of which have a far higher transmission capacity than grid operators have historically been able to realize. To increase capacity, many have launched large-scale and expensive infrastructure projects,” Heimdall says.

Now, the U.S. government has stepped in to ensure that utilities are gaining more capacity from the existing infrastructure, aiming to upgrade 100,000 miles of transmission lines over the next five years.

Heimdall's technology enables grid operators and utilities to boost transmission capacity without undertaking lengthy, costly infrastructure projects. Earlier this year, the company kicked off the largest grid optimization project in the U.S. with Minnesota-based Great River Energy.

Octagos Health has announced a $43 million series B raise that will bring their technology to many more hearts. Image via octagoshealth.com

Houston cardiac health startup raises $43 million series B to grow AI-backed platform

money moves

A Houston-based tech company that has a product line of software solutions for cardiac health has raised funding.

Octagos Health, the parent company of Atlas AI — a software platform for cardiac devices like pacemakers, defibrillators, ambulatory monitors and consumer wearables — has announced a $43 million series B raise that will bring their technology to many more hearts.

Morgan Stanley Investment Capital led the investment, which also included funds from Mucker Capital and other continuing strategic investors. The goal of the raise is to supply funds to accelerate Atlas AI’s growth across the United States and to expand into other areas of care, including ambulatory monitors, consumer wearables, and sleep.

"This investment will enable us to accelerate enhancements to our platform, in addition to scaling our commercial team and operations. We are currently the only company that helps cardiology practices migrate their historical data from legacy software providers and fully integrates with any EHR (exertion heart rate) system. We do this while enabling customized reporting supported by patient and practice decision-support analytics," says Eric Olsen, COO of Octagos Health, in a press release.

Octagos Health was founded by a team of healthcare pros including CEO Shanti Bansal, a cardiologist and founder of Houston Heart Rhythm, an atrial fibrillation center. The goal was to find a new way to deal with the massive amount of data that clinicians encounter each day in a way that combines software and the work of human doctors.

According to the Octagos Health website, “Our solution allows clinicians to focus on other ways of delivering meaningful healthcare and more efficiently manage their remotely monitored patients.”

It works thanks to customizable reporting features that allow patients’ healthcare teams to get help while monitoring them, but to do it precisely as they would if they were crunching numbers themselves.

"We are excited to partner with Octagos Health and support their vision of transforming cardiac care," says Melissa Daniels, managing director of Morgan Stanley Expansion Capital. "Octagos Health has demonstrated exceptional growth and innovation in a critical area of healthcare. We believe their platform and vertically integrated software and services significantly improve patient care and streamline cardiac monitoring processes for healthcare providers."

Will Hsu, co-founder and partner of Mucker Capital, agrees. “Octagos Health is poised for scale – industry leading gross margins, a very sticky product that doctors and clinical staff love, and a market ready for disruption with artificial intelligence. This is the new wave for diagnostic care,” he says. And with this raise, it will be available to even more clinicians and patients across the country.

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Persona AI teams with Under Armour to protect next-gen robots

Future Fabrics

Houston-based Persona AI has cemented a partnership with sportswear manufacturer Under Armour to provide materials to protect future robots operating in dangerous conditions.

Through the partnership, Persona AI and Under Armour will launch a research initiative to explore whether advanced performance textiles can improve the durability and resilience of humanoid robots operating in harsh industrial environments.

“This is an opportunity to apply our innovation expertise in a new context,” Kyle Blakely, senior vice president of innovation, design studio, development, and testing at Under Armour, said in a news release. “Robotics presents a fascinating new design challenge, and we aim to play a leading role in shaping performance solutions for these environments. As humanoid systems take on more physically demanding roles, we see real potential to create new market opportunities, and we’re exploring how concepts like thermal management, abrasion resistance, and flexibility translate beyond sport."

Founded in June 2024 by former NASA engineer Nicolaus Radford and former Figure AI CTO Jerry Pratt, Persona AI has quickly risen to be a top name in the development of humanoid robotic systems. Radford previously was the principal investigator at NASA’s Dexterous Robotics Lab before becoming CEO of Nauticus Robotics. While at NASA, he was the chief engineer behind Robotnaut 2, the first humanoid robot on the International Space Station.

Persona AI raised $25 million in preseed funding to develop humanoid robots designed to operate in shipyards and other industrial sites. The company has inked partnerships with HD Korea Shipbuilding & Offshore Engineering, HD Hyundai Robotic, and Korean manufacturing firm Vazil Company to create and deploy humanoid robots for complex welding tasks in shipyards.

These environments often involve exposure to dangerous chemicals, harsh weather and other potential hazards. The partnership between Persona AI and Under Armour will combine the clothing manufacturer’s development of resilient but flexible materials with the humanoid design of Persona AI.

Though best known for its sportswear, Under Armour produces a wide range of specialist fabrics and clothing, including an entire line used by the U.S. military. The company’s track record of developing high-performance fabrics built to withstand war zones and desert conditions makes it a strong partner in Persona AI’s latest endeavor.

“We chose to work with Under Armour because of their track record of innovation with these types of performance materials,” Radford said. “As we develop humanoids for intense and potentially hazardous environments, this collaboration helps us understand how advanced materials can enhance long-term reliability, thereby informing solutions to better protect workers in the field.”

Global summit spotlights Houston's growing role in brain health, innovation

where to be

The Center for Houston’s Future and UTMB are bringing the Texas Brain Economy Summit back to Houston this summer to continue to position the region as a global leader in brain health.

The summit, held June 9-10 at the Texas Medical Center's Helix Park, will bring together more than 500 executives, researchers, policymakers and innovators from around the world to discuss the global brain economy.

Attendees can expect to hear from leaders of global institutions, including the World Economic Forum, U.S. Chamber of Commerce, McKinsey Health Institute, Global Brain Economy Initiative, Davos Alzheimer’s Collaborative, Business Collaborative for Brain Health (UsAgainstAlzheimer’s), Rice University, Memorial Hermann, MD Anderson and many others.

Day 1 of the conference will focus on "Enabling Human Flourishing & Economic Growth." Day 2 will focus on "Scaling Innovation & AI Solutions in the Brain Economy."

Keynotes will be delivered by:

  • Lexi Branson, vice president of health policy at the U.S. Chamber of Commerce
  • Kana Enomoto, director of the McKinsey Health Institute
  • Megan Henshall, founder of Google Experience Institute (Xi)
  • Ryan Howard, co-lead of Google Experience Institute (Xi)
  • Dr. Hani Jneid, John Sealy Distinguished Centennial Chair in Cardiology and vice president of cardiovascular operations at UTMB
  • Steve Kean, president and CEO of the Greater Houston Partnership
  • Dan Patrick, Lieutenant Governor of Texas
  • Jochen Reiser, president of UTMB
  • Thomas Seitz, senior partner of the McKinsey Health Institute

Other significant speakers include:

  • Rym Ayadi, founder and president of the Euro-Mediterranean Economists Association (EMEA) and co-founder of the Brain Capital Alliance
  • Arthur Evans, CEO and executive vice president of the American Psychological Association
  • David Gow, president and CEO of the Center for Houston’s Future (Gow is the founder and chairman of Gow Media, InnovationMap's parent company)
  • Bill McKeon, president and CEO of the Texas Medical Center
  • Jeff Merritt, head of urban transformation at the World Economic Forum
  • Joanne Pike, president and CEO of the Alzheimer’s Association
  • George Vradenburg, founding chairman of Davos Alzheimer’s Collaborative and co-founder, chairman and CEO of Us Against Alzheimer’s

The event is supported through Project Metis, which was launched by the Center for Houston’s Future last year. Led by Rice Brain Institute, The University of Texas Medical Branch's Moody Brain Health Institute and Memorial Hermann’s comprehensive neurology care department, the initiative aims to advance the understanding, prevention and treatment of the brain. It was developed on the heels of Texas voters overwhelmingly approving a ballot measure to launch the $3 billion, state-funded Dementia Prevention and Research Institute of Texas (DPRIT).

“Texas voters, by approving the state-funded Dementia Prevention Institute, have shown a strong commitment to brain health, as scientific advances continue daily. [Project Metis] aims to harness the Houston region’s unique strengths: its concentration of leading medical and academic institutions, a vibrant innovation ecosystem, and a history of entrepreneurial leadership in health and life sciences,” Gow said at the time.

Learn more about The Texas Brain Economy Summit and purchase tickets here.

Texas solar power poised to surpass coal for the first time in 2026

Powering Texas

Solar power promises to shine even brighter in Texas this year.

A new forecast from the U.S. Energy Information Administration (EIA) indicates that for the first time, annual power generation from utility-scale solar will surpass annual power generation from coal across the territory covered by the Electric Reliability Council of Texas (ERCOT).

Solar generation is expected to reach 78 billion kilowatt-hours in 2026 in the ERCOT grid, compared with 60 billion kilowatt-hours for coal, the EIA forecast says. The ERCOT grid supplies power to about 90 percent of Texas, including the Houston area.

“Utility-scale solar generation has been increasing steadily in ERCOT as solar capacity additions help meet rapid electricity demand growth,” the forecast says.

Although natural gas remains the dominant source of electricity generation in ERCOT, accounting for an average 44 percent of electricity generation from 2021 to 2025, solar’s share of the generation mix rose from four percent to 12 percent. During the same period, coal’s share dropped from 19 percent to 13 percent.

EIA predicts about 40 percent of U.S. solar capacity, or 14 billion kilowatt-hours, added in 2026 will come from Texas.

Although EIA expects annual solar generation to exceed annual coal generation in 2026, solar surpassed coal in ERCOT on a monthly basis for the first time in March 2025, when solar generation totaled 4.33 billion kilowatt-hours and coal’s totaled 4.16 billion kilowatt-hours. Solar generation continued to exceed that of coal until August of that year.

“In 2026, we estimate that solar exceeded coal for the first time in March, and we forecast generation from solar installations in ERCOT will continue to exceed that from coal until December, when coal generation exceeds solar,” says EIA. “We expect solar generation to exceed that of coal for every month in 2027 except January and December.”

For 2027, EIA forecasts annual solar generation of 99 billion kilowatt-hours in the ERCOT grid, compared with 66 billion kilowatt-hours of annual coal generation.

In April, ERCOT projected almost 368 billion kilowatt-hours of demand in ERCOT’s territory by 2032. ERCOT’s all-time peak demand hit 85.5 billion kilowatt-hours in August 2023.

“Texas is experiencing exceptional growth and development, which is reshaping how large load demand is identified, verified, and incorporated into long-term planning,” ERCOT President and CEO Pablo Vegas said. “As a result of a changing landscape, we believe this forecast to be higher than expected … load growth.”

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This article first appeared on EnergyCapitalHTX.com.

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