Promotions, corporate ladder climbing, and other top mover and shaker stories on EnergyCapital this year. Photos courtesy

Editor's note: As the year comes to a close, EnergyCapital is looking back at the year's top stories in Houston energy transition. From new board seats to internal promotions, this year marked a big one for some of Houston's energy leaders. Here were the top five most-read articles covering the mover and shaker news of 2024 — be sure to click through to read the full story.

Growing Houston biotech company expands leadership as it commercializes sustainable products

Nádia Skorupa Parachin joined Cemvita as vice president of industrial biotechnology. Photo courtesy of Cemvita

Houston-based biotech company Cemvita recently tapped two executives to help commercialize its sustainable fuel made from carbon waste.

Nádia Skorupa Parachin came aboard as vice president of industrial biotechnology, and Phil Garcia was promoted to vice president of commercialization.

Parachin most recently oversaw several projects at Boston-based biotech company Ginkjo Bioworks. She previously co-founded Brazilian biotech startup Integra Bioprocessos. Continue reading.

California geothermal co. grows C-suite, grows presence in Houston

XGS has leased 10,000 square feet of office space in Houston. Photo via Getty Images

A geothermal company with its headquarters in Palo Alto, California, has named new members of its C-suite and, at the same time, has expanded its operational footprint in Houston.

XGS Energy promoted Axel-Pierre Bois to CTO and Lucy Darago to chief commercial officer. Darago is based in Austin, and Bois, from France, lists his role as based in Houston on LinkedIn. Both have worked at XGS since February of last year.

“Axel and Lucy’s proven operational excellence and technical knowledge has helped propel XGS forward as we enter our next phase of growth,” Josh Prueher, CEO of XGS Energy, says in a news release. “I’m thrilled to have them both join XGS’ C-suite and have their support as we continue to grow our team, further advance our next-generation geothermal technology, and invest in our multi-gigawatt project pipeline.” Continue reading.

CenterPoint names 40-year industry veteran as exec for emergency response

Don Daigler will be tasked to lead CenterPoint Energy's yearly work in preparation for, response to and recovery from all emergencies, which includes both natural disasters and man-made events. Photo via CenterPoint Energy/LinkedIn

CenterPoint Energy announced the hiring of industry veteran Don Daigler as the new senior vice president of CenterPoint’s Emergency Preparedness and Response.

Daigler will be tasked to lead the company’s yearly work in preparation for, response to and recovery from all emergencies, which includes both natural disasters and man-made events. Daigler and his team will coordinate with all public safety partners.

“I’m pleased to join CenterPoint Energy and lead its Emergency Preparedness and Response team to transform how we prepare, mitigate and respond to the impacts of hurricanes, extreme weather and other emergencies,” Daigler says in a news release. ”The year-round work of our team will help position CenterPoint to deliver the service our customers expect and deserve before, during and after emergencies when the need is greatest.” Continue reading.

Houston private equity professional tapped to lead growth development at firm focused on decarbonization

Climate Investment announced Patrick Yip will lead the firm's growth investment strategy as managing director, head of growth. Photo via LinkedIn

A London-based energy transition investment firm has named a new Houston-based leader.

Climate Investment announced Patrick Yip will lead the firm's growth investment strategy as managing director, head of growth. In his new role, he will oversee the development of CI’s growth-stage portfolio, including deal sourcing, operational function of strategy, and working with the team that manages the firm's early-stage Catalyst program. He reports to the CEO, Pratima Rangarajan.

“We are excited to welcome Patrick to Climate Investment,” Rangarajan says in a news release. “The decarbonization investment opportunity continues to grow rapidly, and Patrick’s extensive experience will help us capitalize on that. He will also provide leadership and develop the market partnerships that will drive our growth investment strategy forward, playing a key role in supporting portfolio market adoption and accelerating the next stage of development for CI.” Continue reading.

Firm hires top Houston-based energy banker to grow energy transition team

Top Houston banker Stephen Trauber has joined publicly traded investment bank Moelis & Co. Image via Shutterstock

Houston energy dealmaker Stephen Trauber has been tapped as chairman and global head of the energy and clean technology business at publicly traded investment bank Moelis & Co.

In 2010, The Wall Street Journal called Trauber “one of the best-connected energy bankers in Houston.”

Trauber comes to New York City-based Moelis from Citi, where he recently retired as vice chairman and global co-head of natural resources and clean energy transition. Before that, he was vice chairman and global head of energy at UBS Investment Bank, where he worked with Ken Moelis, who’s now chairman and CEO of Moelis. Continue reading.

Climate Investment announced Patrick Yip will lead the firm's growth investment strategy as managing director, head of growth. Photo via LinkedIn

Houston private equity professional tapped to lead growth development at firm focused on decarbonization

new hire

A London-based energy transition investment firm has named a new Houston-based leader.

Climate Investment announced Patrick Yip will lead the firm's growth investment strategy as managing director, head of growth. In his new role, he will oversee the development of CI’s growth-stage portfolio, including deal sourcing, operational function of strategy, and working with the team that manages the firm's early-stage Catalyst program. He reports to the CEO, Pratima Rangarajan.

“We are excited to welcome Patrick to Climate Investment,” Rangarajan says in a news release. “The decarbonization investment opportunity continues to grow rapidly, and Patrick’s extensive experience will help us capitalize on that. He will also provide leadership and develop the market partnerships that will drive our growth investment strategy forward, playing a key role in supporting portfolio market adoption and accelerating the next stage of development for CI.”

Founded in 2016 by members of the Oil & Gas Climate Initiative (OGCI), CI grew its strategy last year to focus on more growth-stage opportunities so that its portfolio reflects both a maturing decarbonization pipeline as well as new technologies.

“Investing in Growth is a natural extension of our early-stage Catalyst strategy, enabling us to bring our experience and industry relationships to a wider range of companies that are poised for market expansion,” Rangarajan adds.

Yip, who will continue to be based in Houston, previously served as managing director for GEC, a Houston-based energy transition investment firm. He also previously worked at Halliburton on its mergers and acquisitions team. He has also held a number of private company Board positions within the energy transition sector.

According to the firm, it has facilitated over 136 market deployments from its portfolio companies’ technologies since it was founded less than a decade ago.

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Houston microgrid company names new CEO

new hire

Houston-based electric microgrid company Enchanted Rock has named a new CEO.

John Carrington has assumed the role after serving as Enchanted Rock's executive chairman since June, the company announced earlier this month.

Carrington most recently was CEO of Houston-based Stem, which offers AI-enabled software and services designed for setting up and operating clean energy facilities. He stepped down as Stem’s CEO in September 2024. Stem, which was founded in 2006 and went public under Carrington's leadership in 2021, was previously based in San Francisco.

Carrington has also held senior leadership roles at Miasolé, First Solar and GE.

Corey Amthor has served as acting CEO of Enchanted Rock since June. He succeeded Enchanted Rock founder Thomas McAndrew in the role, with McAndrew staying on with the company as a strategic advisor and board member. With the hiring of Carrington, Amthor has returned to his role as president. According to the company, Amthor and Carrington will "partner to drive the company’s next phase of growth."

“I’m proud to join a leadership team known for technical excellence and execution, and with our company-wide commitment to innovation, we are well positioned to navigate this moment of unprecedented demand and advance our mission alongside our customers nationwide,” Carrington said in the news release. “Enchanted Rock’s technology platform delivers resilient, clean and scalable ultra-low-emissions onsite power that solves some of the most urgent challenges facing our country today. I’m energized by the strong momentum and growing market demand for our solutions, and we remain committed to providing data centers and other critical sectors with the reliable power essential to their operations.”

This summer, Enchanted Rock also announced that Ian Blakely would reassume the role of CFO at the company. He previously served as chief strategy officer. Paul Froutan, Enchanted Rock's former CTO, was also named COO last year.

6 major acquisitions that fueled the Houston energy sector in 2025

2025 In Review

Editor's note: As 2025 comes to a close, we're revisiting the biggest headlines and major milestones of the energy transition sector this year. Here are six major acquisitions that fueled the Houston energy industry in 2025:

Houston-based Calpine Corp. to be acquired in clean energy megadeal

Houston's Calpine Corp. will be acquired by Baltimore-based nuclear power company Constellation Energy Corp. Photo via DOE

In January 2025, Baltimore-based nuclear power company Constellation Energy Corp. and Houston-based Calpine Corp. entered into an agreement where Constellation would acquire Calpine in a cash and stock transaction with an overall net purchase price of $26.6 billion. The deal received final regulatory clearance this month.

Investment giant to acquire TXNM Energy for $11.5 billion

Blackstone Infrastructure, an affiliate of Blackstone Inc., will acquire a major Texas electricity provider. Photo via Shutterstock

In May 2025, Blackstone Infrastructure, an investment giant with $600 million in assets under management, agreed to buy publicly traded TXNM Energy in a debt-and-stock deal valued at $11.5 billion. The deal recently cleared a major regulatory hurdle, but still must be approved by the Public Utility Commission of Texas.

Houston's Rhythm Energy expands nationally with clean power acquisition

PJ Popovic, founder and CEO of Houston-based Rhythm Energy, which has acquired Inspire Clean Energy. Photo courtesy of Rhythm

Houston-based Rhythm Energy Inc. acquired Inspire Clean Energy in June 2025 for an undisclosed amount. The deal allowed Rhythm to immediately scale outside of Texas and into the Northeast, Midwest and mid-Atlantic regions.

Houston American Energy closes acquisition of New York low-carbon fuel co.

Houston American Energy Corp. has acquired Abundia Global Impact Group, which converts plastic and certified biomass waste into high-quality renewable fuels. Photo via Getty Images.

Renewable energy company Houston American Energy Corp. (NYSE: HUSA) acquired Abundia Global Impact Group in July 2025. The acquisition created a combined company focused on converting waste plastics into high-value, drop-in, low-carbon fuels and chemical products.

Chevron gets green light on $53 billion Hess acquisition

With the deal, Chevron gets access to one of the biggest oil finds of the decade. Photo via Chevron

In July 2025, Houston-based Chevron scored a critical ruling in Paris that provided the go-ahead for a $53 billion acquisition of Hess and access to one of the biggest oil finds of the decade. Chevron completed its acquisition of Hess shortly after the ruling from the International Chamber of Commerce in Paris.

Investors close partial acquisition of Phillips 66 subsidiary with growing EV network

Two investment firms have scooped up the majority stake in JET, a subsidiary of Phillips 66 with a rapidly growing EV charging network. Photo via Jet.de Facebook.

In December 2025, Energy Equation Partners, a London-based investment firm focused on clean energy companies, and New York-based Stonepeak completed the acquisition of a 65 percent interest in JET Tankstellen Deutschland GmbH, a subsidiary of Houston oil and gas giant Phillips 66.

Houston researchers develop energy-efficient film for AI chips

AI research

A team of researchers at the University of Houston has developed an innovative thin-film material that they believe will make AI devices faster and more energy efficient.

AI data centers consume massive amounts of electricity and use large cooling systems to operate, adding a strain on overall energy consumption.

“AI has made our energy needs explode,” Alamgir Karim, Dow Chair and Welch Foundation Professor at the William A. Brookshire Department of Chemical and Biomolecular Engineering at UH, explained in a news release. “Many AI data centers employ vast cooling systems that consume large amounts of electricity to keep the thousands of servers with integrated circuit chips running optimally at low temperatures to maintain high data processing speed, have shorter response time and extend chip lifetime.”

In a report recently published in ACS Nano, Karim and a team of researchers introduced a specialized two-dimensional thin film dielectric, or electric insulator. The film, which does not store electricity, could be used to replace traditional, heat-generating components in integrated circuit chips, which are essential hardware powering AI.

The thinner film material aims to reduce the significant energy cost and heat produced by the high-performance computing necessary for AI.

Karim and his former doctoral student, Maninderjeet Singh, used Nobel prize-winning organic framework materials to develop the film. Singh, now a postdoctoral researcher at Columbia University, developed the materials during his doctoral training at UH, along with Devin Shaffer, a UH professor of civil engineering, and doctoral student Erin Schroeder.

Their study shows that dielectrics with high permittivity (high-k) store more electrical energy and dissipate more energy as heat than those with low-k materials. Karim focused on low-k materials made from light elements, like carbon, that would allow chips to run cooler and faster.

The team then created new materials with carbon and other light elements, forming covalently bonded sheetlike films with highly porous crystalline structures using a process known as synthetic interfacial polymerization. Then they studied their electronic properties and applications in devices.

According to the report, the film was suitable for high-voltage, high-power devices while maintaining thermal stability at elevated operating temperatures.

“These next-generation materials are expected to boost the performance of AI and conventional electronics devices significantly,” Singh added in the release.

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This article originally appeared on our sister site, InnovationMap.