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Who's who in Houston energy transition: Top 5 interviews of 2024

year in review

Here were the top energy transition interviews on EnergyCapital — according to its readers. 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. EnergyCapital launched specifically to cover the energy transition community — and that includes the people who power it. Throughout the year, we spoke to these individuals and some resonated more than others to readers. Be sure to click through to read the full interviews or stream the podcast episode.

David Pruner, executive director of the Texas Entrepreneurship Exchange for Energy (TEX-E)

David Pruner, executive director of TEX-E, joins the Houston Innovator Podcast. Photo via LinkedIn

David Pruner is laser focused on the future workforce for the energy industry as executive director of the Texas Entrepreneurship Exchange for Energy, known as TEX-E, a nonprofit housed out of Greentown Labs that was established to support energy transition innovation at Texas universities.

TEX-E launched in 2022 in collaboration with Greentown Labs, MIT’s Martin Trust Center for Entrepreneurship, and five university partners — Rice University, Texas A&M University, Prairie View A&M University, University of Houston, and The University of Texas at Austin.

Pruner was officially named to his role earlier this year, but he's been working behind the scenes for months now getting to know the organization and already expanding its opportunities from students across the state at the five institutions. Read more.


Barbara Burger, mentor and adviser

Houston energy leader Barbara Burger joins the Houston Innovators Podcast to discuss the energy transition's biggest challenges and her key takeaways from CERAWeek. Photo courtesy of CERAWeek

Last month, Barbara Burger participated in four panels at CERAWeek by S&P Global, and from her insider perspective, she had a few key takeaways from the event, which brought together energy leaders, tech startups, dignitaries, civil servants, and more.

In a recent podcast interview, Burger shared some of her key takeaways from the event — and how these trends are affecting the industry as a whole. Read through an excerpt or stream the full episode below. Read more.


Tyler Lancaster, partner at Energize Capital

Tyler Lancaster, a Chicago-based investor with Energize Capital, shares his investment thesis and why Houston-based Amperon caught his eye. Photo courtesy of Energize Capital

One of the biggest challenges to the energy transition is finding the funds to fuel it. Tyler Lancaster, partner at Energize Capital, is playing a role in that.

Energize Capital, based in Chicago, is focused on disruptive software technology key to decarbonization. One of the firm's portfolio companies is Amperon, which raised $20 million last fall.

In an interview with EnergyCapital, Lancaster shares what he's focused on and why Amperon caught Energize Capital's attention. Read more.

Teresa Thomas, vice chair and national sector leader for energy and chemicals at Deloitte

Teresa Thomas, newly named vice chair and national sector leader for energy and chemicals at Deloitte, shares her vision in an interview. Photo via LinkedIn

Deloitte is undergoing a leadership shift — and this evolution for the nearly 200-year-old company directly affects its Houston office and the energy transition line of business.

Earlier this month, Teresa Thomas was named vice chair and national sector leader for energy and chemicals at Deloitte. Based in Houston, she will also serve as an advisory partner and leader in Deloitte & Touche LLP's Risk & Financial Advisory energy and chemicals practice. She succeeds Amy Chronis, partner at Deloitte LLP, who will continue to serve within the energy and chemicals practice until her retirement in June 2024.

In an interview with EnergyCapital, Thomas shares a bit about what she plans on focusing as she takes on her new role. Read more.

Sarah Jewett, vice president of strategy at Fervo Energy

Sarah Jewett, vice president of strategy at Fervo Energy, shares how Fervo has been able to leverage proven oil and gas technologies, such as horizontal drilling, and more, to pave the way toward a low-carbon energy future. Photo via HETI

Houston-based Fervo Energy, the leader in enhanced geothermal technology, is accelerating decarbonization by bringing 24/7 carbon-free electricity to the grid.

Fervo’s mission is to leverage geoscience innovations to accelerate the world’s transition to sustainable energy. Fervo continues to demonstrate the commercial viability and scalability of enhanced geothermal energy, which uses breakthrough techniques to harness heat from the earth and generate continuous electricity.

Sarah Jewett, VP of Strategy at Fervo, shared more about how Fervo has been able to leverage proven oil and gas technologies, such as horizontal drilling, well stimulation, and fiber-optic sensing, to pave the way toward a low-carbon energy future. Read more.

Teresa Thomas, newly named vice chair and national sector leader for energy and chemicals at Deloitte, shares her vision in an interview. Photo via LinkedIn

Newly named corporate energy, chemicals leader on navigating dynamic energy transition sector

Q&A

Deloitte is undergoing a leadership shift — and this evolution for the nearly 200-year-old company directly affects its Houston office and the energy transition line of business.

Earlier this month, Teresa Thomas was named vice chair and national sector leader for energy and chemicals at Deloitte. Based in Houston, she will also serve as an advisory partner and leader in Deloitte & Touche LLP's Risk & Financial Advisory energy and chemicals practice. She succeeds Amy Chronis, partner at Deloitte LLP, who will continue to serve within the energy and chemicals practice until her retirement in June 2024.

In an interview with EnergyCapital, Thomas shares a bit about what she plans on focusing as she takes on her new role.

EnergyCapital: As you transition into your new role, how would you describe your focus and priorities? 

Teresa Thomas: I am excited about what lies ahead for the energy and chemicals sector. The sector is moving into the new year with strong production and a focus on returning value and achieving efficiency. The sector is innovating with new technologies, such as artificial intelligence, including generative AI. that can capture value from data to transform and reinvent business processes and optimize the workforce.

The mission for my leadership role is to grow our practice by serving our clients with world-class solutions; venture into new innovative areas that exceed the changing needs in our sector; and attract, retain, and develop the best talent across Deloitte’s four businesses. I am bullish about the sector's role in leading on the forefront through the energy transition, pioneering innovative technologies and solutions that will help solve some of society’s most pressing issues, and contributing unique and differentiated ideas to help transform the energy and chemicals sector to meet global demands in a sustainable and profitable way.

EC: How is Deloitte navigating the trends and progression of the energy transition? What are clients’ expectations, and how does the company plan to stay a step ahead?  

TT: At Deloitte, we proactively navigate the dynamic landscape of the energy transition with a strategic, collaborative, and innovative edge. Our extensive global presence and diverse partnerships, spanning industries, regions, and academic institutions, keep us abreast of emerging trends, regulatory shifts, and technological advancements. Client expectations are evolving towards sustainable practices, and we respond by providing innovative solutions that align with their goals.

Our commitment to staying a step ahead involves continuous investment in talent development and innovative technologies. Central to our strategy is taking ownership of pivotal marketplace issues and adeptly guiding clients through the intricacies of their business challenges. Through harnessing our extensive expertise that cuts across our four business, we aim to create growth opportunities and offer innovative solutions.

EC: Energy companies have been known to more slowly adopt and adapt to new technologies. Is that changing?

TT: We believe the energy and chemicals industries is at the forefront of adopting cutting-edge technologies to bolster operational efficiency, increase productivity, reduce costs, and advance safety and sustainability measures. From bringing new materials to consumers, pioneering offshore operations, transforming shale resources into one of the most competitive resources, to developing new and sustainable molecules, the industry has highlighted its adaptability. The industry continues to be a leader of groundbreaking technologies including the development of biofuels, biomaterials, carbon capture, hydrogen production, and more.

Additionally, energy companies are increasingly leveraging digital technologies, including GenAI to enhance operational efficiency, optimize resource management, and drive innovation across various segments of the industry. From interpreting seismic data and predicting reservoir behavior, to employing carbon analytics and tracking GHG emissions, the industry is transforming its operations and contributing to a more sustainable and efficient energy landscape. While there is much more to be done, we remain confident that the energy industry will continue to help lead the way in innovation.

The oil and gas industry has been increasingly investing in clean energy over recent years, wherein the clean energy investments by the oil and gas industry as a share of their upstream capex quadrupled between 2020 and 2022. Yet, this clean energy investment remains less than 2 percent of the overall clean energy investments made in 2022.

After having outperformed the broader S&P 500 by over 45 percent since 2021, the oil and gas industry faces a threefold mandate:

  1. uphold financial stability,
  2. sustain high dividends, and
  3. augment investments in low-carbon ventures.

However, the central challenge lies in scaling the energy transition while maintaining profitability and shareholder value.

EC: The chemicals sector, in particular, seems ripe for disruption with new and developing alternative materials on the scene. What do you expect to see from this industry in 2024?

TT: There is a chemicals and material transition taking place as companies are pushed to develop more sustainable, lower-carbon materials. And given that 96 percent of all manufactured goods are touched by chemistry, this transition could also be transformational. Over the next year, we expect chemical companies to continue positioning themselves for this high-tech, low-carbon future in three notable ways.

  • First, we expect companies to increase automation and digitalization to improve productivity and accelerate innovation.
  • Second, we see companies continuing to invest in circular solutions, whether it's designing materials for a sustainable end-of-life or using renewable feedstocks.
  • Third, we expect some companies to lean into the new chemicals and materials needed to support the energy transition.

EC: As a Houstonian, what do you see the city’s role amidst the future of energy?

TT: Houston is a top global city, driving transformational change and a convener to an ecosystem of players that are leading the charge in the energy transition through biofuels, biomaterials, and advanced methods for carbon capture and hydrogen production.

Although not a native, I did find the energy and chemicals sector early in my career which brought me to this dynamic city. Houston’s advanced network of partners are working together toward creating innovative solutions that are accelerating the advancement of a lower carbon future.

———

This conversation has been edited for brevity and clarity.

Here are three things to know in Houston energy transition news. Photo via Getty Images

Deloitte's new energy lead, a $7.4B deal, and more things to know this week

take note

Editor's note: It's a new week — start it strong with three quick things to catch up on in Houston's energy transition: a roundup of events not to miss, a Houston energy executive to know, and more.

Incoming: Deloitte names new head of energy, chemicals practice

Teresa Thomas was named vice chair and national sector leader for energy and chemicals at Deloitte. She takes over the role from Amy Chronis, partner at Deloitte LLP, who will continue to serve within the energy and chemicals practice until her retirement in June 2024.

"I am fortunate to have worked in the energy and chemicals industry for most of my career, and I'm honored to continue working with companies that are playing a pivotal role in powering progress and purpose," Thomas says in a news release. "Our industry is at the epicenter of the energy transition that can fuel tremendous potential for society, and I'm excited to be leading during this important and transformational time."

Last year, Chronis announced her retirement from Deloitte, and the company named Melinda Yee as the incoming Houston managing partner at Deloitte, a role Chronis held in addition to the title of vice chair and US energy and chemicals leader. Chronis is slated to retire in June 2024, and Yee's new role became effective this month. Read more.

Events not to miss

Put these Houston-area energy-related events on your calendar.

  • Energy Underground's January meeting is on January 18 at noon at the Esperson Building. Register.
  • The Houston Oil and Gas Executive Leadership Summit is an meeting of executives, policymakers, academics, and other professionals with a particular interest related to energy. The event is January 25 at the DoubleTree by Hilton Hotel Houston. Register.
  • Future of Energy Summit is Tuesday, February 6, at AC Hotel by Marriott Houston Downtown. Register.
  • The De Lange Conference, taking place February 9 and 10 at Rice University's Baker Institute for Public Policy, is centered around the theme “Brave New Worlds: Who Decides? Research, Risk and Responsibility” this year. Register.

Really big deal: Southwestern Energy to combine with Chesapeake in $7.4B deal

Chesapeake Energy and Southwestern Energy are combining in a $7.4 billion all-stock deal to form one of the biggest natural gas producers in the U.S.

The transaction, valued at $6.69 per share, will create a company that has large scale acreage in the Appalachia region and Haynesville, Louisiana. It has current net production of approximately 7.9 Bcfe/d with more than 5,000 gross locations and 15 years of inventory.

“The world is short energy and demand for our products is growing, both in the U.S. and overseas," Chesapeake CEO Nick Dell’Osso said in a prepared statement Thursday. "We will be positioned to deliver more natural gas at a lower cost, accelerating America’s energy reach and fueling a more affordable, reliable, and lower carbon future." Read more.

Teresa Thomas was named vice chair and national sector leader for energy and chemicals at Deloitte. Photo via LinkedIn

Deloitte names new Houston-based leader of energy, chemicals practice

new hire

Deloitte announced a new local leader to oversee energy and chemicals nationally.

Teresa Thomas was named vice chair and national sector leader for energy and chemicals at Deloitte. Based in Houston, she will also serve as an advisory partner and leader in Deloitte & Touche LLP's Risk & Financial Advisory energy and chemicals practice.

She will lead the strategic direction of Deloitte's energy and chemicals practice and drive program growth in the sector. Thomas succeeds Amy Chronis, partner at Deloitte LLP, who will continue to serve within the energy and chemicals practice until her retirement in June 2024.

"I am fortunate to have worked in the energy and chemicals industry for most of my career, and I'm honored to continue working with companies that are playing a pivotal role in powering progress and purpose," Thomas says in a news release. "Our industry is at the epicenter of the energy transition that can fuel tremendous potential for society, and I'm excited to be leading during this important and transformational time."

Last year, Chronis announced her retirement from Deloitte, and the company named Melinda Yee as the incoming Houston managing partner at Deloitte, a role Chronis held in addition to the title of vice chair and US energy and chemicals leader. Chronis is slated to retire in June 2024, and Yee's new role became effective this month.

Thomas has served in a variety of leadership roles and has more than 20 years of experience in the energy industry. She is used to serving multiple large clients, and developing deep C-suite and board relationships, as well as advising on future success for the business, and the industry as a whole. She was named as one of Hart Energy's 25 most influential women in energy in 2023, and is the vice chair and board member of The Rose, which is a nonprofit women's breast health organization in Southeast Texas.

"Teresa has played an integral role as strategic advisor to many of our valued energy and chemicals clients as they navigate significant transition, and her leadership, enthusiasm and vision will help shape the future of our practice," Stanley Porter, vice chair at Deloitte and U.S. energy, resources and industrials leader, says in a news release. “I am confident that Teresa brings the right vision, experience and relationships to further lead and grow the energy and chemicals sector as it experiences critical transformation and convergence."

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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.

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