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.

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.

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."

Amy Chronis is passing over the local leadership reins at Deloitte to Melinda Yee. Photos courtesy

Prominent Houston energy business leader to retire, successor named

news to know

Amy Chronis, a Houston business leader within the energy industry and beyond, is retiring next summer. Her replacement has been named.

Melinda Yee will be the incoming Houston managing partner at Deloitte, replacing Chronis who held the role along with the title vice chair and US energy and chemicals leader. Chronis will retire in June 2024, and Yee's new role is effective January 2.

“Melinda has been an active and valued member of Deloitte’s Houston leadership team. She brings an impressive depth of both industry and marketplace knowledge to her new role as managing partner,” Chronis says in a news release. “I am confident that she will be a great leader for our Houston professionals and in the local community.”

Yee has worked at Deloitte for over 30 years and has served as both Deloitte’s central region risk and advisory leader as well as the Houston risk and advisory leader. She also held the title of energy and chemicals leader within Deloitte’s mergers, acquisitions, and restructuring services practice. She's worked on transactions across the energy value chain, as well as waste management, manufacturing, industrials, services, retail operations and investment management, per the release.

“I am honored to have been asked to serve as the managing partner for Deloitte’s Houston practice,” Yee says in the release. “I look forward to continuing the great work Deloitte has accomplished under Amy’s leadership, delivering results for our clients and making an impact in the Houston community.”

In addition to her role at Deloitte, she serves as a board member for Junior Achievement of Southeast Texas, a member of the Energy Transition Committee for the Greater Houston Partnership, and is Audit Committee chair, director and trustee at the University of Colorado Foundation.

While no Houston business was able to break into the top 100, four did make the cut for this prestigious list. Photo via Getty Images

Annual report ranks 2 Houston energy tech companies on list of fasting growing businesses

by the numbers

Four Houston businesses made the cut on Deloitte's recently unveiled list of the fastest-growing technology companies in North America — and two are energy tech companies.

For the 29th year, 2023 Technology Fast 500 ranked top tech, media, telecommunications, life sciences, and energy technology companies based on fiscal year revenue growth from 2019 to 2022. While no Houston business was able to break into the top 100, four did make the cut for this year's list.

“It is great to see Houston represented alongside established technology hubs on this year’s Fast 500 list,” Amy Chronis, vice chair, US Energy and Chemicals Leader and Houston managing partner at Deloitte, says in a statement. “Houston is planting seeds for future innovation, and the companies named to this year’s list confirm our city’s value proposition as an innovative community. We look forward to this growth continuing in the future and extend our congratulations to this year’s Houston winners.”

Houston's two energy representatives are NatGasHub.com, a pipeline data source, at No. 356 with 364 percent growth and P97 Networks, a fintech company for gas stations, at No. 506 with 225 percent growth.

The other two Houston businesses are digital media company Direct Digital Holdings at No. 108 with 1,325 percent growth and B2B software solutions business Liongard at No. 208 with 680 percent growth

Thirty Texas companies made the list of the 541 ranked, making it the fourth most concentrated hub on the list behind the Bay Area, Tri-State Area, and New England. The companies on the list reported a revenue growth ranging from 201 percent to 222,189 percent over the three-year time frame from 2019 to 2022. The average growth rate was 1,934 percent and a median growth rate of 497 percent.

“Each year, we look forward to reviewing the progress and innovations of our Technology Fast 500 winners," Paul Silverglate, vice chair, Deloitte LLP and U.S. technology sector leader, says in the release. "This year is especially celebratory as we expand the number of winners to better represent just how many companies are developing new ideas to progress our society and the world, especially during a slow economy. While software and services and life sciences continue to dominate the top 10, we are encouraged to see other categories making their mark."

Software dominated the industry breakdown with 57 percent of the companies working in that field. However, the top company for 2023 was Vir Biotechnology Inc., a life science company that developed a COVID-19 treatment. Vir was also the top company in 2022.

Last year, only one Houston company made the list. At No. 372 Onit reported a revenue increase of 369 percent. The company also made the 2021 list, along with Graylog and Enercross.

Houston’s broad energy sector can attract engineering expertise and clean tech talent, serving as a locus for knowledge-sharing on the financial and operational challenges ahead in the energy transition. Photo via Getty Images

Houston can help unlock the key to a viable energy transition

guest column

The future of energy holds monumental and diverse expectations. Houston’s long history as the hub for oil and gas development – combined with its growing and important role in development of renewables, carbon capture, and other energy innovation – makes it a critical meeting point for discussions on strategy, investment, and stakeholder engagement in the energy transition.

In our research last fall, we detailed how the oil and gas industry was embracing capital discipline and prioritizing shareholder returns. The industry generated record cash flows and offered a combined dividend and share buyback yield of 8 percent in 2022—the highest among all industries. The industry’s commitment to maintaining capital discipline and investing in viable low-carbon projects has only strengthened in 2023.

In fact, according to our most recent research, the global upstream oil and gas industry is estimated to generate between $2.5 trillion to $4.6 trillion in free cash flow between 2023 and 2030. With capital availability not posing a significant constraint, boardrooms of oil and gas companies are engaged in discussions regarding capital allocation between hydrocarbons and low-carbon solutions, while striving to achieve desired rates of return and meet stakeholder expectations for dividend payouts.

What are the different expectations surrounding the energy transition that could potentially influence the capital allocation strategy or deployment of this free cash flow? Deloitte recently surveyed 150 industry executives and 75 institutional investors globally to find out how respondents expect capital to be deployed either back into the core business, back to shareholders, or into new low-carbon fuels and technologies.

Interestingly, while oil and gas investors and executives tend to agree on many issues, our research also indicated several key areas where expectations of the energy transition diverge.

Energy transition investment potential

Industry executives generally continue to apply discipline in evaluating bankable low-carbon projects, giving investors a chance to direct the dividends they receive into promising energy transition technology. However, sixty percent of executives we surveyed stated that they would invest in low-carbon projects only if the internal rate of return (IRR) from these projects exceeds 12 percent to 15 percent. These returns are a minimum for the industry to fund its base hydrocarbon capital expenditures and meet dividend commitments. For context, in 2022, the average IRR for most renewable power projects was less than 8 percent. Because overall, oil and gas companies are focused on returning value to shareholders, the comparatively lower IRR on some low-carbon projects can make the choice regarding these investments more difficult.

Changes in dividend payout contingent on minimum yield

Many oil and gas executives surveyed also placed higher priority on continuing to provide high dividend yield than some of the investors surveyed. Almost 50 percent of executives indicated that, in their view, dividend cuts could drive away investors. However, about 80 percent of the investors queried said they would likely continue to hold oil and gas stocks – even if companies slightly reduced dividends – to accelerate investments in lower-carbon technologies. However, three-fourths of investors said they required at least a 3 percent dividend yield.

The right technology

About 75 percent of low-carbon technology is still experimental or in early stages of development. Executives seem to remain focused on fuels and technologies — natural gas, hydrogen, carbon capture and storage — that are adjacent to their core businesses. Investors surveyed, on the other hand, tend to favor transformative technologies, such as battery storage and electric vehicles. About 43 percent of investors emphasized battery storage as a promising area.

Our research underscores the importance of immediate action to close the innovation gap. As the Energy Capital of the World, home to 4,700 energy-related organizations, Houston is positioned to lead the way. Houston’s broad energy sector can attract engineering expertise and clean tech talent, serving as a locus for knowledge-sharing on the financial and operational challenges ahead in the energy transition.

———

Amy Chronis is vice chair of US Energy and Chemicals Leader and Houston managing partner at Deloitte LLP.

Kate Hardin is executive director at Deloitte Research Center for Energy and Industrials.
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3 Houston energy companies rank among most innovative startups in Texas

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Three Houston companies claimed spots on LexisNexis's 10 Most Innovative Startups in Texas report, with two working in the geothermal energy space.

Sage Geosystems claimed the No. 3 spot on the list, and Fervo Energy followed closely behind at No. 5. Fintech unicorn HighRadius rounded out the list of Houston companies at No. 8.

LexisNexis Intellectual Property Solutions compiled the report. It was based on each company's Patent Asset Index, a proprietary metric from LexisNexis that identifies the strength and value of each company’s patent assets based on factors such as patent quality, geographic scope and size of the portfolio.

Houston tied with Austin, each with three companies represented on the list. Caris Life Sciences, a biotechnology company based in Dallas, claimed the top spot with a Patent Asset Index more than 5 times that of its next competitor, Apptronik, an Austin-based AI-powered humanoid robotics company.

“Texas has always been fertile ground for bold entrepreneurs, and these innovative startups carry that tradition forward with strong businesses based on outstanding patent assets,” Marco Richter, senior director of IP analytics and strategy for LexisNexis Intellectual Property Solutions, said in a release. “These companies have proven their innovation by creating the most valuable patent portfolios in a state that’s known for game-changing inventions and cutting-edge technologies.We are pleased to recognize Texas’ most innovative startups for turning their ideas into patented innovations and look forward to watching them scale, disrupt, and thrive on the foundation they’ve laid today.”

This year's list reflects a range in location and industry. Here's the full list of LexisNexis' 10 Most Innovative Startups in Texas, ranked by patent portfolios.

  1. Caris (Dallas)
  2. Apptronik (Austin)
  3. Sage Geosystems (Houston)
  4. HiddenLayer (Austin)
  5. Fervo Energy (Houston)
  6. Plus One Robotics (San Antonio)
  7. Diligent Robotics (Austin)
  8. HighRadius (Houston)
  9. LTK (Dallas)
  10. Eagle Eye Networks (Austin)

Sage Geosystems has partnered on major geothermal projects with the United States Department of Defense's Defense Innovation Unit, the U.S. Air Force and Meta Platforms. Sage's 3-megawatt commercial EarthStore geothermal energy storage facility in Christine, Texas, was expected to be completed by the end of last year.

Fervo Energy fully contracted its flagship 500 MW geothermal development, Cape Station, this spring. Cape Station is currently one of the world’s largest enhanced geothermal systems (EGS) developments, and the station will begin to deliver electricity to the grid in 2026. The company was recently named North American Company of the Year by research and consulting firm Cleantech Group and came in at No. 6 on Time magazine and Statista’s list of America’s Top GreenTech Companies of 2025. It's now considered a unicorn, meaning its valuation as a private company has surpassed $1 billion.

Meanwhile, HighRadius announced earlier this year that it plans to release a fully autonomous finance platform for the "office of the CFO" by 2027. The company reached unicorn status in 2020.

Tech entrepreneur turned climate investor is on a mission to monetize carbon removal

now streaming

The climate conversation is evolving — fast. It’s no longer just about emissions targets and net-zero commitments. It’s about capital, infrastructure, and execution at industrial scale.

That’s exactly where Yao Huang operates. A seasoned tech entrepreneur turned climate investor, Yao brings sharp clarity to one of the biggest challenges in climate innovation: how do we fund and scale technologies that remove carbon without relying on goodwill or government subsidies?

In this episode of the Energy Tech Startups Podcast, Yao sits down with hosts Jason Ethier and Nada Ahmed for a wide-ranging conversation that redefines how we think about decarbonization. From algae-based photobioreactors that capture CO₂ at the smokestack, to financing models that mirror real estate and infrastructure—not venture capital—Yao lays out a case for why the climate fight will be won or lost on spreadsheets, not slogans.

Her message is as bold as it is practical: this isn’t about saving the planet for the sake of it. It’s about building profitable, resilient systems that scale. And Houston, with its industrial base and project finance expertise, is exactly the place to do it.

The 40-Gigaton Challenge—and a Pandemic Pivot

Yao’s entry into climate wasn’t part of a long-term plan. It was sparked by a quiet moment during the pandemic—and a book.

Reading How to Avoid a Climate Disaster by Bill Gates, she came to two uncomfortable realizations:

  1. The people in power don’t actually have this figured out, and
  2. She would be alive to suffer the consequences.

That insight jolted her out of the traditional tech world and into climate action. She studied at Stanford, surrounded herself with mentors, and began diving into early-stage climate deals. But she quickly realized that most of the solutions she was seeing were still years away from commercialization.

So she narrowed her focus: no R&D moonshots, no science experiments—just deployable solutions that could scale now.

Carbon Optimum: Where Algae Meets Infrastructure

That’s how she found Carbon Optimum, a company using algae photobioreactors to remove CO₂ directly from industrial emissions. Their approach is both elegant and economic:

  • Install algae reactors next to major emitters like coal and cement plants.
  • Feed the algae with flue gas, allowing it to absorb CO₂ in a controlled system.
  • Harvest the algae and convert it into valuable commodities like bio-oils, fertilizer, and food ingredients.

It’s a nature-based solution, enhanced by engineering.
One acre of tanks can capture emissions and generate profit—without subsidies.

“This is one of the few solutions I’ve seen that can scale profitably and quickly,” Yao says. “And we’re not inventing anything new—we’re just doing it better.”

The Real Problem? It’s Capital, Not Carbon

As an investor, Yao is blunt: most climate startups are misaligned with the capital markets.

They’re following a tech startup playbook—built for SaaS, not steel. But building climate infrastructure requires a completely different approach: project finance, blended capital, debt structures, carbon credit integration, and regulatory incentives.

“Climate tech is more like real estate or healthcare than software,” Yao explains. “You don’t raise six rounds of venture. You build a stack—grants, equity, debt, tax credits—and you structure your project like infrastructure.”

It’s not just theory. It’s exactly how Carbon Optimum is expanding—through partnerships, offtake agreements, and real-world deployments. And it’s why she believes many climate startups fail: they don’t speak the language of finance.

Houston’s Role in the Climate Capital Stack

For Yao, Houston isn’t just a backdrop—it’s a strategic asset.

The city’s deep bench of project finance professionals, commodity traders, lawyers, and infrastructure veterans makes it uniquely positioned to lead the deployment phase of climate solutions.

“We’ve been calling it the wrong thing,” she says. “This isn’t just about climate—it’s an energy transition. And Houston knows how to build energy infrastructure at scale.”

Still, she notes, the ecosystem needs to evolve. Less education, more execution. Fewer workshops, more closers.

“Houston could be the epicenter of this movement—if we activate the right people and get the right projects over the line.”

From Carbon Capture to Circular Economies

The potential applications of Carbon Optimum’s algae platform go beyond carbon capture. Because the output—algae biomass—can be converted into:

  • Renewable oil
  • High-efficiency fertilizers (critical in today’s geopolitically fragile supply chains)
  • Food ingredients rich in protein and nutrients
  • Even biochar, a highly stable form of carbon sequestration

It’s scalable, modular, and location-agnostic. In island nations, Yao notes, these systems can offer energy independence by turning waste CO₂ into local energy and fertilizer—without needing to import fuels or food.

“It’s not just emissions reduction. It’s economic sovereignty through circular systems.”

Doing, Not Just Talking

One of Yao’s key takeaways for founders? Don’t waste time. Climate startups don’t have the luxury of trial-and-error cycles stretched over years.

“Founders need to get real about what it takes to scale: talent, capital, storytelling, partnerships. If you’re not ready to do that, maybe you should be a CSO, not a CEO.”

She also points out that founders don’t need to hire everyone—they need to tap the right networks. And in cities like Houston, those networks exist—if you know how to motivate them.

“It takes a different kind of leadership. You’re not just raising money—you’re moving people.”

Why This Episode Matters

This conversation is for anyone who’s serious about scaling real solutions to the climate crisis. Whether you’re a founder navigating capital markets, an investor seeking return and impact, or a policymaker designing the frameworks — Yao Huang offers a grounded, urgent, and actionable perspective.

It’s not about hope. It’s about execution.

Listen to the full episode of the Energy Tech Startups Podcast with Yao Huang:


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Hosted by
Jason Ethier and Nada Ahmed, the Digital Wildcatters’ podcast, Energy Tech Startups, delves into Houston's pivotal role in the energy transition, spotlighting entrepreneurs and industry leaders shaping a low-carbon future.


Rice scientist receives $2 million award for research on 'new type of fuel'

winner, winner

Rice University chemistry professor László Kürti was named as a recipient of the 2025 Ross M. Brown Investigator Award from the California Institute of Technology’s Brown Institute for Basic Sciences.

Kürti is one of eight mid-career faculty members to receive up to $2 million over five years for their research in the physical sciences.

“I’m greatly honored,” Kürti said in a news release. “We will learn a tremendous amount in the next five years and gain a much clearer understanding of the challenges ahead.”

Kürti was selected for the research he’s been developing for six years on a molecule called tetrahedral N4, which studies show can release large amounts of energy on demand. The molecule can also decompose directly into nitrogen gas without producing carbon dioxide or water vapor. Kürti believes N4 can be used as a "new type of fuel for vehicles."

“Eventually, N4 and other stable, neutral polynitrogen cages could be used to power rockets, helping us reach the moon or Mars faster and with heavier payloads,” he added in this release.

The Brown Investigator Awards were founded by entrepreneur and Caltech alumnus Ross M. Brown and established by the Brown Science Foundation in 2020. The organization has recognized 21 scientists over the last five years.

“Midcareer faculty are at a time in their careers when they are poised and prepared to make profound contributions to their fields,” Brown said in the news release. “My continuing hope is that the resources provided by the Brown Investigator Awards will allow them to pursue riskier innovative ideas that extend beyond their existing research efforts and align with new or developing passions, especially during this time of funding uncertainty.”