Houston’s journey towards a clean energy future is a testament to the power of innovation and adaptability. Photo via Getty Images

Houston, often dubbed the “Energy Capital of the World,” is at a pivotal moment in its history. Known for its vast oil and gas reserves, the city is now embracing a new role as a leader in the clean energy transition. This shift is not just about adopting new technologies but also about creatively repurposing existing infrastructure to support sustainable energy solutions.

Houston’s offshore oil wells, many of which are old or abandoned, present a significant opportunity for carbon capture. By repurposing these wells, we can sequester carbon dioxide, reducing greenhouse gas emissions and mitigating climate change. This approach not only utilizes existing infrastructure but also provides a cost-effective solution for carbon management. According to the Greater Houston Partnership, initiatives like these are crucial as Houston aims to lower its climate-changing greenhouse gas emissions. Exxon estimates that just their proposed CCS hub could capture and store 50 million metric tons of CO2 annually by 2030 and 100 million metric tons by 2040.

The proximity of abandoned offshore platforms to the coast makes them ideal candidates for renewable energy substations. These platforms can be transformed into hubs for wind, solar or tidal energy, facilitating the integration of renewable energy into the grid. This repurposing not only maximizes the use of existing structures but also minimizes environmental disruption.

Decommissioned pipelines, which are already in place, offer a ready-made solution for routing renewable energy cables. By using these existing rights of way, Houston can avoid disturbing additional seafloor and reduce the environmental impact of new cable installations. This strategy ensures a smoother transition to renewable energy infrastructure. The U.S. Energy Information Administration notes that Texas, including Houston, leads the nation in wind-generated electricity, highlighting the potential for further renewable energy development.

Onshore oil and gas facilities in Houston also hold potential for clean energy repurposing. Wells that were drilled but never used for oil or gas can be adapted for geological thermal energy storage. This process involves storing excess renewable energy in the form of heat, which can be retrieved when needed, providing a reliable and sustainable energy source. This innovative use of existing wells aligns with Houston’s broader energy transition strategy, which aims to leverage the city’s industrial expertise for a low-carbon future.

Once the land has been remediated, old and abandoned oil fields can be converted into solar farms. This transformation not only provides a new use for previously contaminated land but also contributes to the generation of clean, renewable energy. Solar farms on these sites can help meet Houston’s energy needs while supporting environmental restoration. The Environmental Protection Agency in recent years recognized Houston as the top city in the U.S. for green energy usage, with annual green power usage topping 1 billion kilowatt-hours in 2021.

Houston’s journey towards a clean energy future is a testament to the power of innovation and adaptability. By repurposing existing infrastructure, we can create a sustainable energy landscape that honors the city’s industrial past while paving the way for a greener tomorrow. These strategies highlight the potential for Houston to lead in the clean energy transition, setting an example for cities worldwide.

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Tershara Mathews is the national offshore wind lead at WSP.

This article originally ran on EnergyCapital.


Cindy Taff of Sage Geosystems shares her vision for her company and for the future of energy. Photo courtesy of Sage

Profile: Houston founder helps create a new way of making clean electricity

leading energy

When Cindy Taff was a vice president at the giant oil and gas company Shell in Houston, her middle schooler Brianna would sometimes look over her shoulder as she worked from home.

“Why are you still working in oil and gas?” her daughter asked more than once. “Is there a future in it? Why aren’t you moving into something clean?”

The words weighed on Taff.

“As a parent you want to give direction, and was I giving her the right direction?” she recalled.

At Shell, Taff was in charge of drilling wells and bringing them into production. She worked on oil and natural gas that's called unconventional in the industry, because the oil or natural gas is difficult to get out of the ground — it doesn't naturally gush out like in movies. It's a term often used for oily shale rock. Taff was somewhat unconventional for the industry, too. Her coworkers used to tease her for driving an efficient hybrid.

“You’re not helping oil and gas prices by driving a Prius," they'd say.

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EDITOR’S NOTE: This is part of an occasional series of personal stories from the energy transition — the change away from a fossil-fuel based world that largely causes climate change.

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Taff wanted Shell to pursue the energy that comes from the Earth's natural heat — geothermal. Her team looked into it, but Shell never greenlit any of those projects, saying it would take too much time to recoup the investment.

When Brianna went to college, she was passionate about energy too, but she wanted to work on renewables. After her sophomore year, in the summer of 2020, she got an internship at a geothermal company — one that in fact had just been launched by Taff's former colleagues at Shell — Sage Geosystems in Houston.

Now it was Taff looking over her daughter's shoulder and asking question as she worked from home during the pandemic.

And Sage executives were talking to Brianna, too. “We could use your mom here," they said. "Can you get her to come work for us?” Brianna recalled recently.

That's how Cindy Taff left her 36-year career at Shell to become chief operating officer at Sage.

“I didn't understand why Shell wasn't pursuing it,” she said about applying the company's drilling expertise to heat energy. "Then I got this great opportunity to pivot from oil and gas and work with these guys that I have the utmost respect for. And also, I wanted to make my daughter proud, quite frankly.”

Brianna Byrd, now 24, is the operations engineer and spokesperson at the company. She's glad her mother, now CEO, left oil and gas.

“Of course I’m biased, she’s my mom, but I don’t think Sage would be where it is without her,” she said.

The United States is a world leader in electricity made from geothermal energy, but this kind of electricity still accounts for less than half a percent of the nation’s total large-scale generation, according to the U.S. Energy Information Administration. In 2023, most geothermal electricity came from California, Nevada, Utah, Hawaii, Oregon, Idaho and New Mexico, where there are reservoirs of steam, or very hot water, close to the surface.

The Energy Department estimates this next generation of geothermal projects, like what Sage is doing, could provide some 90 gigawatts by 2050 — enough to power 65 million homes or more. That hinges on private investment, and on companies like Sage introducing this form of energy to regions where, until now, it’s been thought to be impossible.

How it works

Sage has two main technologies: The first makes electricity out of heat. The company drills wells and fractures hot, dry rock. Then electric pumps push water into those fractures, heating it up, and the hot water gets jettisoned to the surface where it spins a turbine.

But a funny thing happened during testing in Starr County, Texas. In late 2021, the team realized much of their technology could also be used to store energy.

If that works, it could be a big deal. Currently, to store energy at large scale, the United States is adding batteries, mostly lithium-ion type, to solar and wind projects, so they can charge up and send electricity back to the electric grid when the sun is not shining or the wind is not blowing. These batteries typically supply four hours maximum power.

Sage envisions some of its technology placed at solar and wind farms, too. When electricity demand is low, they'll use extra energy from a solar or wind farm to run electric pumps, pumping water into the underground fractures, leaving it there until demand for electricity increases — storing the energy beneath the Earth's surface for hours, days or even weeks.

It's a novel way to use the technology, said Silviu Livescu, lead author on a report looking at the future of geothermal in Texas. Livescu knows Taff and has followed the company's progress.

“It’s the right moment for companies like Sage with a purpose, with a mission and with the technology to show that geothermal indeed is the energy source we need to address climate change,” said Livescu, who co-founded a different geothermal startup in Austin, Texas.

These days, Taff is often out in front, talking with politicians and policymakers about the potential of geothermal. She attended the United Nations COP28 climate talks last year to share her vision for this kind of energy.

Sage has raised $30 million so far and is growing.

It's building a small (3-megawatt), geothermal energy storage system at San Miguel Electric Cooperative, Inc., south of San Antonio this year. It's working with U.S. military facilities in Texas that see geothermal as a way to power their bases securely. Sage recently announced partnerships for heating communities in Bucharest, Romania; clean electricity from geothermal for Meta's data centers, and energy storage and geothermal projects in California.

The company is final-testing a proprietary turbine to more efficiently convert heat to electricity.

Because of her oil and gas background, Taff said she knows geothermal will only be adopted widely if the cost comes down. The mantra at Sage is: It's going to be clean and it's going to be cheap. She's excited to be working in a field she feels is on the cusp of playing a big role in cleaning and stabilizing the electrical grid.

“I’ve never looked back,” she said. “I love what I’m doing and I think it’s going to be transformative.”

Chevron expects all of its corporate functions to shift to Houston over the next five years. Photo via Getty Images

Chevron to relocate HQ, executives to Houston

big move

The Energy Capital of the World is adding another jewel to its corporate crown.

With the impending move of Chevron’s headquarters from Northern California to Houston, the Houston area will be home to 24 Fortune 500 companies. Chevron ranks 15th on this year’s Fortune 500.

Oil and gas giant Chevron, currently based in San Ramon, California, will join three Fortune 500 competitors that already maintain headquarters in the Houston area:

  • Spring-based ExxonMobil, No. 7 on the Fortune 500
  • Houston-based Phillips 66, No. 26 on the Fortune 500
  • Houston-based ConocoPhillips, No. 68 on the Fortune 500

Chevron, which posted revenue of $200.9 billion in 2023, employs about 7,000 people in the Houston area and about 2,000 people in San Ramon. The company says its chairman and CEO, Mike Wirth, and vice chairman, Mark Nelson, will move to Houston before the end of 2024.

In an interview with The Wall Street Journal, Wirth acknowledged Chevron’s differences of opinion with California policymakers regarding energy matters.

“We believe California has a number of policies that raise costs, that hurt consumers, that discourage investment and ultimately we think that’s not good for the economy in California and for consumers,” Wirth said.

Chevron expects all of its corporate functions to shift to Houston over the next five years. Jobs that support the company’s California operations will remain in San Ramon, where Chevron employs about 2,000 people. Some Chevron employees in San Ramon will relocate to Houston.

The company’s move to Houston hardly comes as a surprise. Speculation about a relocation to Houston intensified after Chevron sold its 98-acre San Ramon headquarters in 2022 and moved corporate employees to leased office space. Over the past several years, Chevron has shifted various corporate functions to Houston.

“This is just the final step that many industry observers were waiting to happen,” Ken Medlock, senior director of the Baker Institute’s Center for Energy Studies at Rice University, says in a news release.

“To start, Houston provides a world-class location for internationally focused energy companies, which is why there is such a massive international presence here,” Medlock adds. “Texas is also the nation’s largest energy producer across multiple energy sources and is poised to lead in emerging opportunities such as hydrogen and carbon capture, so Houston is a great place for domestically focused activities as well.”

The announcement of Chevron’s exit from California comes just a year after ExxonMobil finalized its relocation from Irving to Spring.

“Chevron’s decision to relocate its headquarters underscores the compelling advantages that position Houston as the prime destination for leading energy companies today and for the future,” Steve Kean, president and CEO of the Greater Houston Partnership, says in a post on the organization’s website.

“With deep roots in our region,” he adds, “Chevron is [a] key player in establishing Houston as a global energy leader. This move will further enhance those efforts.”

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This article originally ran on EnergyCapital.

Houston could have ranked higher on a global report of top cities in the world if it had a bit more business diversification. Photo via Getty Images

Report ranks Houston as a top global city — with one thing holding it back

take note

A new analysis positions the Energy Capital of the World as an economic dynamo, albeit a flawed one.

The recently released Oxford Economics Global Cities Index, which assesses the strengths and weaknesses of the world’s 1,000 largest cities, puts Houston at No. 25.

Houston ranks well for economics (No. 15) and human capital (No. 18), but ranks poorly for governance (No. 184), environment (No. 271), and quality of life (No. 298).

New York City appears at No. 1 on the index, followed by London; San Jose, California; Tokyo; and Paris. Dallas lands at No. 18 and Austin at No. 39.

In its Global Cities Index report, Oxford Economics says Houston’s status as “an international and vertically integrated hub for the oil and gas sector makes it an economic powerhouse. Most aspects of the industry — downstream, midstream, and upstream — are managed from here, including the major fuel refining and petrochemicals sectors.”

“And although the city has notable aerospace and logistics sectors and has diversified into other areas such as biomedical research and tech, its fortunes remain very much tied to oil and gas,” the report adds. “As such, its economic stability and growth lag other leading cities in the index.”

The report points out that Houston ranks highly in the human capital category thanks to the large number of corporate headquarters in the region. The Houston area is home to the headquarters of 26 Fortune 500 companies, including ExxonMobil, Hewlett Packard Enterprise, and Sysco.

Another contributor to Houston’s human capital ranking, the report says, is the presence of Rice University, the University of Houston and the Texas Medical Center.

“Despite this,” says the report, “it lacks the number of world-leading universities that other cities have, and only performs moderately in terms of the educational attainment of its residents.”

Slower-than-expected population growth and an aging population weaken Houston’s human capital score, the report says.

Meanwhile, Houston’s score for quality is life is hurt by a high level of income inequality, along with a low life expectancy compared with nearly half the 1,000 cities on the list, says the report.

Also in the quality-of-life bucket, the report underscores the region’s variety of arts, cultural, and recreational activities. But that’s offset by urban sprawl, traffic congestion, an underdeveloped public transportation system, decreased air quality, and high carbon emissions.

Furthermore, the report downgrades Houston’s environmental stature due to the risks of hurricanes and flooding.

“Undoubtedly, Houston is a leading business [center] that plays a key role in supporting the U.S. economy,” says the report, “but given its shortcomings in other categories, it will need to follow the path of some of its more well-rounded peers in order to move up in the rankings.”

A new program at Rice University will educate recent graduates or returning learners on key opportunities within energy transition. Photo via Rice.edu

New program to produce innovative, sustainability-focused workforce for energy industry

coming this fall

A Houston university has committed to preparing the workforce for the future of energy with its newest program.

Rice University announced plans to launch the Master of Energy Transition and Sustainability, or METS, in the fall. The 31 credit-hour program, which is a joint initiative between Rice's George R. Brown School of Engineering and the Wiess School of Natural Sciences, "will train graduates to face emergent challenges in the energy sector and drive innovation in sustainability across a wide range of domains from technology to economics and policy," according to the university.

“We believe that METS graduates will emerge as leaders and innovators in the energy industry, equipped with the skills and knowledge to drive sustainable solutions,” Rice President Reginald DesRoches says in the release. “Together we can shape a brighter, more resilient and cleaner future for generations to come.”

Some of the focus points of the program will be geothermal, hydrogen, and critical minerals recovery. Additionally, there will be education around new technologies within traditional oil and gas industry, like carbon capture and sequestration and subsurface storage.

“We are excited to welcome the inaugural cohort of METS students in the fall of 2024,” Thomas Killian, dean of the Wiess School of Natural Sciences and a professor of physics and astronomy, says in the release. “This program offers a unique opportunity for students to delve into cutting-edge research, tackle real-world challenges and make a meaningful impact on the future of energy.”

The new initiative is just the latest stage in Rice's relationship with the energy industry.

“This is an important initiative for Rice that is very much aligned with the university’s long-term commitment to tackle urgent generational challenges, not only in terms of research — we are well positioned to make significant contributions on that front — but also in terms of education,” says Michael Wong, the Tina and Sunit Patel Professor in Molecular Nanotechnology, chair and professor of chemical and biomolecular engineering and a professor of chemistry, materials science and nanotechnology and of civil and environmental engineering. “We want prospective students to know that they can confidently learn the concepts and tools they need to thrive as sustainability and energy transition experts and thought leaders.”

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This article originally ran on EnergyCapital.

The research outfit says North America leads global AI growth in oil and gas, with Houston playing a pivotal role. Photo via Getty Images

Report: Houston rises as emerging hub for $6B global AI in oil and gas industry

eyes on ai

Houston is emerging as a hub for the development of artificial intelligence in the oil and gas industry — a global market projected to be worth nearly $6 billion by 2028.

This fresh insight comes from a report recently published by ResearchAndMarkets.com. The research outfit says North America leads global AI growth in oil and gas, with Houston playing a pivotal role.

“With AI-driven innovation at its core, the oil and gas industry is set to undergo a profound transformation, impacting everything from reservoir optimization to asset management and energy consumption strategies — setting a new standard for the future of the sector,” says ResearchAndMarkets.com.

The research company predicts the value of the AI sector in oil and gas will rise from an estimated $3.2 billion in 2023 and $3.62 billion in 2024 to $5.8 billion by 2028. The report divides AI into three categories: software, hardware, and hybrids.

As cited in the report, trends that are sparking the explosion of AI in oil and gas include:

  • Stepped-up use of data
  • Higher demand for energy efficiency and sustainability
  • Automation of repetitive tasks
  • Optimization of exploration and drilling
  • Enhancement of safety

“The oil and gas industry’s ongoing digitization is a significant driver behind … AI in the oil and gas market. Rapid adoption of AI technology among oilfield operators and service providers serves as a catalyst, fostering market growth,” says ResearchAndMarkets.com.

The report mentions the Open AI Energy Initiative as one of the drivers of increased adoption of AI in oil and gas. Baker Hughes, C3 AI, Microsoft, and Shell introduced the initiative in February 2021. The initiative enables energy operators, service providers, and vendors to create sharable AI technology for the oil and gas industry.

Baker Hughes and C3 AI jointly market AI offerings for the oil and gas industry.

Aside from Baker Hughes, Microsoft, and Shell, other companies with a significant Houston presence that are cited in the AI report include:

  • Accenture
  • BP
  • Emerson Electric
  • Google
  • Halliburton
  • Honeywell
  • Saudi Aramco
  • Schlumberger
  • TechnipFMC
  • Weatherford International
  • Wood

Major AI-related trends that the report envisions in the oil and gas sector include the:

  • Digital twins for asset modeling
  • Autonomous robotics
  • Advanced analytics for reservoir management
  • Cognitive computing for decision-making
  • Remote monitoring and control systems

“The digitization trend within the oil and gas sector significantly propels the AI in oil and gas market,” says the report.

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Texas lands top 10 spot in new future of tech study

report

Texas is among the top 10 states making the biggest investments in digital innovation, according to a new study.

The study, conducted by web-hosting company Hostinger, puts Texas in eighth place among the states when it comes to these key metrics:

  • Financial impact of the digital economy
  • Amount of venture capital and grants received by digital startups
  • Number of government-run tech hubs
  • Presence of top-rated business incubators

“To many, the Texas story is one of oil magnates and real estate tycoons. But in recent decades, the state has emerged as an innovation and high-tech hub,” according to a report from the Federal Reserve Bank of Dallas.

On a scale of 1 to 100, Texas received a score of 79. California nabbed the top spot with a score of 100. Appearing behind California and ahead of Texas in the ranking are:

  • No. 2: New York
  • No. 3: Washington
  • No. 4: Illinois
  • No. 5: Massachusetts
  • No. 6: Missouri
  • No. 7: Wisconsin

In terms of ranking factors, Texas benefited the most from landing at No. 2 among the states for its impact on the digital economy. The study pegged Texas’ digital economic impact at $141.7 billion, well below California’s impact of $492.8 billion.

Hostinger relied primarily on government data on 31 states to come up with the ranking. “The research provides a detailed ranking based on a composite score that reflects each state's overall investment and capacity for digital innovation,” the company says.

More than 30,000 businesses in Texas participate in the digital economy, according to the Computer & Communications Industry Association (CCIA). Those businesses employ more than 633,000 people and account for over six percent of the state’s GDP, a key measure of economic strength.

“As technology companies face increasing scrutiny through state and national legislation and litigation, it’s crucial to recognize the significant positive impacts of the digital economy that resonate across the United States,” says the CCIA.

TMC names 2025 cohort of cancer treatment innovators

ready to grow

Texas Medical Center Innovation has named more than 50 health care innovators to the fifth cohort of its Accelerator for Cancer Therapeutics (ACT).

The group specializes in immunotherapy, precision drug discovery, monoclonal antibodies, and diagnostic and therapeutic technologies, according to a statement from TMC.

During the nine-month ACT program, participants will enjoy access to a network of mentors, grant-writing support, chemistry resources, and the entrepreneur-in-residence program. The program is designed to equip participants with the ability to secure investments, develop partnerships, and advance the commercialization of cancer therapeutics in Texas.

“With over 35 million new cancer cases predicted by 2050, the urgency to develop safer, more effective, and personalized treatments cannot be overstated,” Tom Luby, chief innovation officer at Texas Medical Center, said in a news release.

Members of the new cohort are:

  • Alexandre Reuben, Kunal Rai, Dr. Cassian Yee, Dr. Wantong Yao, Dr. Haoqiang Ying, Xiling Shen, and Zhao Chen, all of the University of Texas MD Anderson Cancer Center
  • Dr. Andre Catic and Dr. Martin M. Matzuk, both of the Baylor College of Medicine
  • Cynthia Hu and Zhiqiang An, both of UTHealth Houston
  • Christopher Powala, Aaron Sato, and Mark de Souza, all of ARespo Biopharma
  • Daniel Romo, Dr. Susan Bates, and Ken Hull, all of Baylor University
  • Eugene Sa & Minseok Kim, both of CTCELLS
  • Gomika Udugamasooriya and Nathaniel Dawkins, both of the University of Houston
  • Dr. Hector Alila of Remunity Therapeutics
  • Iosif Gershteyn and Victor Goldmacher, both of ImmuVia
  • João Seixas, Pedro Cal, and Gonçalo Bernardes, all of TargTex
  • Ken Hsu and Yelena Wetherill, both of the University of Texas at Austin
  • Luis Martin and Dr. Alberto Ocaña, both of C-Therapeutics
  • Dr. Lynda Chin, Dr. Keith Flaherty, Dr. Padmanee Sharma, James Allison, and Ronan O’Hagan, all of Project Crest/Apricity Health
  • Michael Coleman and Shaker Reddy, both of Metaclipse Therapeutics
  • Robert Skiff and Norman Packard, both of 3582.ai
  • Rolf Brekken, Uttam Tambar, Ping Mu, Su Deng, Melanie Rodriguez, and Alexander Busse, all of UT Southwestern Medical Center
  • Ryan Swoboda and Maria Teresa Sabrina Bertilaccio, both of NAVAN Technologies
  • Shu-Hsia Chen and Ping-Ying Pan, both of Houston Methodist
  • Thomas Kim, Philipp Mews, and Eyal Gottlieb, all of ReEngage Therapeutics
The ACT launched in 2021 and has had 77 researchers and companies participate. The group has collectively secured more than $202 million in funding from the NIH, CPRIT and venture capital, according to TMC.