Houston researchers develop catalyst for emission-free hydrogen production using light instead of heat

switch flipped

Researchers created a light-driven catalyst for hydrogen production, offering an emission-free alternative to traditional methods. Photo by Jeff Fitlow/Rice University

Researchers at Rice University have developed a catalyst that could render steam methane reforming, or SMR, entirely emission-free by using light rather than heat to drive the reaction.

The researchers believe the work could prove to be a breakthrough for extending catalyst lifetimes. This will improve efficiencies and reduce costs for a number of industrial processes that are affected by a form of carbon buildup that can deactivate catalysts called coking.

The new copper-rhodium photocatalyst uses an antenna-reactor design. When it is exposed to a specific wavelength of light it breaks down methane and water vapor without external heating into hydrogen and carbon monoxide. The importance of this is it is a chemical industry feedstock that is not a greenhouse gas. Rice’s work also shows that the antenna-reactor technology can overcome catalyst deactivation due to oxidation and coking by employing hot carriers to remove oxygen species and carbon deposits, which effectively regenerates the catalyst with light.

The new SMR reaction pathway build off a 2011 discovery from Peter Nordlander, Rice’s Wiess Chair and Professor of Physics and Astronomy and professor of electrical and computer engineering and materials science and nanoengineering, and Naomi Halas. They are the authors on the study about the research that was published in Nature Catalysis. The study showed that the collective oscillations of electrons that occur when metal nanoparticles are exposed to light can emit “hot carriers” or high-energy electrons and holes that can be used to drive chemical reactions.

“This is one of our most impactful findings so far, because it offers an improved alternative to what is arguably the most important chemical reaction for modern society,” Norlander says in a news release.

The research was supported by Robert A. Welch Foundation (C-1220, C-1222) and the Air Force Office of Scientific Research (FA9550-15-1-0022) with the Shared Equipment Authority at Rice providing data analysis support.

“This research showcases the potential for innovative photochemistry to reshape critical industrial processes, moving us closer to an environmentally sustainable energy future,” Halas adds.

Hydrogen has been studied as it could assist with the transition to a sustainable energy ecosystem, but the chemical process responsible for more than half of the current global hydrogen production is a substantial source of greenhouse gas emissions.Hydrogen is produced in large facilities that require the gas to be transported to its point of use. Light-driven SMR allows for on-demand hydrogen generation,which researchers believe is a key benefit for use in mobility-related applications like hydrogen fueling stations or and possibly vehicles.

Rice University will open a hub in Bengaluru, India, to focus on sustainable energy, AI, biotechnology, and global research collaboration. Photo via Rice University

Houston university launches global hub to drive innovation in sustainable energy, advanced technologies

incoming, India

Rice University is launching Rice Global India, which is a strategic initiative to expand India’s rapidly growing education and technology sectors.

The new hub will be in the country’s third-largest city and the center of the country’s high-tech industry, Bengaluru, India, and will include collaborations with top-tier research and academic institutions. Rice continues its collaborations with institutions like the Indian Institute of Technology (IIT) Kanpur and the Indian Institute of Science (IISc) Bengaluru. The partnerships are expected to advance research initiatives, student and faculty exchanges and collaborations in artificial intelligence, biotechnology and sustainable energy.

“India is a country of tremendous opportunity, one where we see the potential to make a meaningful impact through collaboration in research, innovation and education,” Rice President Reginald DesRoches says in a news release. “Our presence in India is a critical step in expanding our global reach, and we are excited to engage more with India’s academic leaders and industries to address some of the most pressing challenges of our time.”

India was a prime spot for the location due to the energy, climate change, artificial intelligence and biotechnology studies that align with Rice’s research that is outlined in its strategic plan Momentous: Personalized Scale for Global Impact.

“India’s position as one of the world’s fastest-growing education and technology markets makes it a crucial partner for Rice’s global vision,” vice president for global at Rice Caroline Levander adds. “The U.S.-India relationship, underscored by initiatives like the U.S.-India Initiative on Critical and Emerging Technology, provides fertile ground for educational, technological and research exchanges.”

On November 18, the university hosted a ribbon-cutting ceremony in Bengaluru, India to help launch the project.

“This expansion reflects our commitment to fostering a more interconnected world where education and research transcend borders,” DesRoches says.

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This article originally ran on InnovationMap.

Energy Tech Nexus has opened in downtown Houston. Photo by Natalie Harms/EnergyCapital

Houston leaders launch new downtown hub to support energy transition innovation

ribbon cutting

Three Houston energy innovators have cut the ribbon on a new space for energy transition innovation.

The Energy Tech Nexus, located in the historic Niels Esperson Building at the corner of Travis and Rusk Avenue, opened on September 10, which was proclaimed Energy Tech Nexus Day by the city.

Jason Ethier and Juliana Garaizar, formerly in leadership roles at Greentown Labs, teamed up with Nada Ahmed, previously headed innovation and transformation at Aker Solutions, launched ETN as a community for energy transition startups. The new hub plans to host incubation programs, provide mentorship, and open doors to funding and strategic partnerships for its members.

"We are creating more than a space for innovation," Garaizar says in a news release. "We are crafting a community where pioneers in technology and energy converge to challenge the status quo and accelerate the shift to sustainable energy solutions."

The hub describes its goal of tackling the "trilemma" of energy security, sustainability, and affordability while also contributing to the mission of setting up Houston as the global center for energy transition. To accomplish that mission, ETN will help facilitate rapid deployment of cutting-edge energy technologies.

'The future of energy is not just being written here in Houston; it's being rewritten in more sustainable, efficient, and innovative ways," adds Garaizar. "Houston provides the perfect backdrop for this transformation, offering a rich history in energy and a forward-looking approach to its challenges and opportunities."

"We believe that a broad spectrum of perspectives is crucial in solving global energy challenges. It's about bringing everyone to the table — startups, industry leaders, and investors from all backgrounds," she continues.

Ethier, who co-hosts the Energy Tech Startups Podcast with Ahmed, says he hopes that ETN acts as a meeting place for energy transition innovators.

"By providing the right tools, access, and expertise, we are enabling these companies to leap from ideation to implementation at an unprecedented pace;" Ethier explains. "The interaction between startups and established companies within Energy Tech Nexus creates a unique synergy, fostering innovations that might otherwise take years to mature in isolation."

Payal Patel, an angel investor who has held leadership roles at Station Houston, Plug and Play Ventures, and Softeq, also contributed to launching ETN, which is collaborating with George Liu, who has over 15 years of investment banking experience across energy, cleantech and hardtech with more than $20 billion in M&A projects across his career.

In May, ETN teamed up with Impact Hub Houston to establish the Equitable Energy Transition Alliance and Lab to accelerate startup pilots for underserved communities. The initiative announced that it's won the 2024 U.S. Small Business Administration Growth Accelerator Fund Competition, or GAFC, Stage One award.

ETN celebrated its opening during the inaugural Houston Energy and Climate Week.

Debalina Sengupta has been named as the chief operating officer of UH's Energy Transition Institute. Photo via UH.edu

University of Houston names new energy transition-focused executive

leading the way

The University of Houston has named a new C-level executive to its energy transition-focused initiative.

Debalina Sengupta has been named as the chief operating officer of UH's Energy Transition Institute, which was established in 2022 by a $10 million commitment from Shell USA Inc. and Shell Global Solutions (US) Inc. The institute focuses on hydrogen, carbon management and circular plastics and works closely with UH’s Hewlett Packard Enterprise Data Science Institute and researchers across the university.

Sengupta, who was previously a chemical engineer with over 18 years of experience with sustainability and resilience issues, was called to ETI’s mission and its focus on Houston, which is home to more than 4,500 energy companies and a pivotal international oil and gas hub.

“UH Energy Transition Institute is the first of its kind Institute setup in Texas that focuses solely on the transition of energy,” she says in a news release. “A two-way communication between the academic community and various stakeholders is necessary to implement the transition and I saw the UH ETI role enabling me to achieve this critical goal.”

Originally from India, where she saw first-hand the impact of natural disasters, she has been working with Texas coastal communities over the past two years to not help bring coastal resilience projects along the coast. The Texas coast will serve potentially as an economic development zone for several energy transition projects.

“It is necessary that we think deeply about sustainability quantification for our energy systems, diversify and expand from fossil to non-fossil resources, and understand how it can impact our future generations,” Sengupta continues. “This requires rigorous training and adopting new technologies that will enable the change, and I am dedicated to work towards this goal for UH ETI.”

Sengupta has also worked as a postdoctoral research fellow in the U.S. Environmental Protection Agency. She has a bachelor’s degree in chemical engineering from Jadavpur University in India and a doctorate from Louisiana State University with a focus on process systems engineering. Sengupta previously was at Texas A&M University where she was the Coastal Resilience Program director for Texas Sea Grant,which is a federal-state partnership program funded by the U.S. Department of Commerce National Oceanic and Atmospheric Administration. She has served as the associate director of the Texas A&M Engineering Experiment Station’s Gas and Fuels Research Center; coordinator of the Water, Energy and Food Nexus at Texas A&M Energy Institute; and lecturer at the Artie McFerrin Department of Chemical Engineering.

The ETI has helped catalyze “cross-disciplinary cooperation” to expand funding opportunities for UH faculty, which includes direct funding of over 24 projects via seed grants. As the new COO, Sengupta will work alongside founding executive director of the institute, Joe Powell, their executive team and the ETI advisory board to develop and implement strategic plans. Her position is partially funded by a $500,000 grant from the Houston-based Cullen Foundation.

“We are excited to have Dr. Sengupta join us at UH to help drive the Energy Transition Institute to fulfill its mission in educating students, expanding top-tier research, and providing thought leadership in sustainable energy and chemicals for the Houston area and beyond,” Powell adds. “Dr. Sengupta brings a strong background and network in collaborating with academic, community, governmental and industry partners to build the coalitions needed for success.”

The PhD and doctoral students will each receive a one-year $12,000 fellowship, along with mentoring from experts at UH and Chevron. Photo via UH.edu

University of Houston names first group of Chevron-backed fellows

meet the chosen ones

The University of Houston has named eight graduate students to its first-ever cohort of UH-Chevron Energy Graduate Fellows.

The PhD and doctoral students will each receive a one-year $12,000 fellowship, along with mentoring from experts at UH and Chevron. Their work focuses on energy-related research in fields ranging from public policy to geophysics and math. The fellowship is funded by Chevron.

“The UH-Chevron Energy Fellowship program is an exciting opportunity for our graduate students to research the many critical areas that impact the energy industry, our communities and our global competitiveness,” Ramanan Krishnamoortil UH's Vice President for Energy and Innovation says in a statement.

“Today’s students not only recognize the importance of energy, but they are actively driving the push for affordable, reliable, sustainable and secure energy and making choices that clearly indicate that they are meaningfully contributing to the change,” he continues.

“We love that Chevron is sponsoring this group of fellows because it’s a fantastic way for us to get involved with the students who are working on some of the biggest problems we’ll face in society,” Chevron Technology Ventures President Jim Gable adds.

The 2023 UH-Chevron Energy Graduate Fellows are:

Kripa Adhikari, a Ph.D. student in the Department of Civil and Environmental Engineering in the Cullen College of Engineering. Her work focuses on thermal regulation in enhanced geothermal systems. She currently works under the mentorship of Professor Kalyana Babu Nakshatrala and previously worked as a civil engineer with the Nepal Reconstruction Authority.

Aparajita Datta, a researcher at UH Energy and a Ph.D. candidate in the Department of Political Science. Her work focuses on the federal Low-Income Home Energy Assistance Program (LIHEAP), a redistributive welfare policy designed to help households pay their energy bills. She holds a bachelor’s degree in computer science and engineering from the University of Petroleum and Energy Studies in India, and master’s degrees in energy management and public policy from UH. She also recently worked on a paper for UH about transportation emissions.

Chirag Goel, a Ph.D. student in materials science and engineering at UH. His work focuses on using High Temperature Superconductors (HTS) to optimize manufacturing processes, which he says can help achieve carbon-free economies by 2050. The work has uses in renewable energy generation, electric power transmission and advanced scientific applications.

Meghana Idamakanti, a third-year Ph.D. student in the William A. Brookshire Department of Chemical and Biomolecular Engineering. Her work focuses on using electrically heated steam methane for cleaner hydrogen production. She received her bachelor’s degree in chemical engineering from Jawaharlal Nehru Technological University in India in 2020 and previously worked as a process engineering intern at Glochem Industries in India.

Erin Picton, an environmental engineering Ph.D. student in the Shaffer Lab at UH. Her work focuses on ways to increase the sustainability of lithium processing and reducing wasted water and energy. “I love the idea of taking waste and turning it into value,” she said in a statement. She has previously worked in collaboration with MIT and Greentown Labs, as chief sustainability officer of a Houston-based desalination startup; and as a visiting graduate researcher at Argonne National Lab and at INSA in Lyon, France.

Mohamad Sarhan, a Ph.D. student and a teaching assistant in the Department of Petroleum Engineering. His work focuses on seasonal hydrogen storage and the stability of storage candidates during hydrogen cycling. He holds a bachelor’s degree and a master’s degree in petroleum engineering from Cairo University

Swapnil Sharma, a Ph.D. student in the William A. Brookshire Department of Chemical and Biomolecular Engineering. His work has been funded by the Department of Energy and focuses on thermal modeling of large-scale liquid hydrogen storage tanks. He works with Professor Vemuri Balakotaiah. He holds bachelor's and master’s degrees in chemical engineering from the Indian Institute of Technology (IIT). He also developed one of the world’s highest fiber-count optical fiber cables while working in India and founded CovRelief, which helped millions of Indians find resources about hospital beds, oxygen suppliers and more during the pandemic.

Larkin Spires, who's working on her doctoral research in the Department of Earth and Atmospheric Sciences in the College of Natural Sciences and Mathematics. Her work focuses on a semi-empirical Brown and Korringa model for fluid substitution and the ties between geophysics and mathematics. She works under Professor John Castagna and holds a bachelor’s degree in math from Louisiana State University and a master’s degree in geophysics from UH.

Earlier this month Evolve Houston also announced its first-ever cohort of 13 microgrant recipients, whose work aims to make EVs and charging infrastructure more accessible in some of the city's more underserved neighborhoods.

The Houston Energy Transition Initiative spoke with Ramanan Krishnamoorti about the future of energy. Image via htxenergytransition.org

Empowering the next generation: Q&A with Ramanan Krishnamoorti

THE VIEW FROM HETI

College students stand at the intersection of youth climate activism and emerging academic research that has the power to reshape the future of energy. Dr. Ramanan Krishnamoorti believe that college students have the power to tackle some of the world’s most pressing issues in energy, if given the opportunity. Krishnamoorti serves as University of Houston Vice President for Energy and Innovation and professor of chemical and biomolecular engineering is leading the university’s efforts to establish education, research and outreach partnerships to address energy and innovation challenges.

HETI sat down with Dr. Krishnamoorti to learn more about his journey in the energy industry, the importance of engaging the youth in climate change and how community partners can give college students a seat at the energy transition table.

Q: You have a passionate way of speaking about the energy transition and the mission to get to net zero by 2050. Tell us about your background in the energy industry.

My journey in the energy industry began in academia as a chemical engineer, where my early scientific focus revolved around polymeric materials, which are closely tied to the industrial and societal applications of oil and gas beyond traditional fuels.

During the early 2000s, when our society faced an energy shortage and was grappling with pressing challenges, my interest in the broader energy landscape began to take shape. It was during that time that I assumed the role of chair of the Chemical Engineering Department at the University of Houston, which provided me the remarkable opportunity to establish the petroleum engineering program (eventually department), fostering close collaboration with industry stakeholders.

This experience granted me invaluable insights into the intricate operations of the energy industry as a whole, which ultimately led to me becoming the chief energy officer at UH. Over the past decade, my deep engagement across the energy industry has allowed me to fully grasp the immense value of energy and the critical challenges we face in ensuring that it remains affordable, reliable and sustainable.

Q: When it comes to the renewable energy workforce, you’ve spoken about the need to engage current K-12 students in STEM to ensure a robust talent pool in the future. What are some ways we can help students recognize their potential as change agents in the energy transition?

In today’s rapidly evolving energy landscape, success hinges on attracting a diverse and talented workforce, whether it be in the conventional oil and gas sector, the decarbonization realm (energy transition) or the renewable energy industry. Creating a broad and inclusive pathway that appeals to students from middle school onwards is crucial. We must vividly demonstrate the transformative power of their actions and the power of learning by doing. This would inspire them to explore the fundamental disciplines of science, technology, engineering and mathematics. By connecting these academic foundations to real world challenges, we can show them the immense impact they could have in shaping a sustainable and advancing future.

Energy is the lifeblood of modern society, and providing reliable, affordable and sustainable energy for all is our collective responsibility. We must convey to students the robust career opportunities available within the industry as a whole. The skills and knowledge gained in this field are highly transferable, enabling individuals to navigate various sectors and contribute to positive change across the entire energy spectrum but also help transform the world to one of opportunities for humanity.

Q: At the recent Future of Global Energy conference presented by Chevron, you spoke about the importance of empowering young leaders to act and influence decisions around energy, climate change and sustainability. How can leading energy companies give students and recent graduates a seat at the energy transition table?

Energy companies need to recognize the passion and impatience of this new generation and tap into it. These young individuals are eager to be part of the solution and are driven by a desire for tangible success in the challenge of building an equitable and sustainable energy sector. By providing opportunities for hands-on experience and learning-by-doing, energy companies can channel their enthusiasm and leverage their digital native mindset to develop scalable solutions for the grand challenge of energy solutions across the world.

Moreover, fostering a culture of mentorship and giving back is essential. Students and recent graduates have a strong inclination to make a positive societal impact. By offering organized mentorship programs within K-12 schools and higher education institutions, they can provide avenues for young talent to contribute meaningfully and gain valuable insights and guidance from industry professionals.

Lastly, it’s crucial for energy companies to recognize and embrace the inherent consideration of environmental, social and governance issues by the new generation of entrants. When confronted by complex engineering challenges, these young leaders naturally bring a constructive perspective that incorporates ESG considerations. By actively engaging with their perspectives, companies can benefit from fresh ideas and contribute to the overall advancement of sustainable practices.

Q: Do you believe that actions and initiatives put in place by young people have the power to trigger the momentum needed to help scale energy transition related businesses?

Absolutely! The energy transition demands innovative approaches to rapidly scale up technologies, while simultaneously addressing regulatory, financial and communication engagement challenges that may lag.

The new generation of students and industry entrants have demonstrated their ability to navigate bureaucratic systems that are two steps behind the problems they face, making them adept problem solvers. By empowering and supporting them, we can leverage their strengths to confront energy transition challenges head on. This team effort, combining their fresh perspectives with the necessary resources, will accelerate momentum and drive the scaling of energy transition-related businesses.

Q: Do students today recognize the importance of the energy transition?

Today’s students not only recognize the importance of the energy transition, but they are actively driving it and making choices that clearly indicate that they are meaningfully contributing to the change. They embrace risk-taking and innovative approaches to solve real-world energy challenges –– they are comfortable in a world where they understand the issue of bottlenecks (as is common in the complex energy systems) and the need for trade-offs.

What sets them apart is their dedication to promoting justice and equity. In fact, a recent poll conducted in collaboration with the UH Hobby School of Public Affairs revealed that many UH students prioritize companies committed to addressing societal and environmental issues, even if it means a sacrifice in salary. Their commitment speaks volumes about their desire to drive change.

Q: Looking toward the future of energy, how can universities and community partners provide support that fuels innovation and energy expertise in the youth today?

To fuel innovation and cultivate energy expertise in today’s youth, universities, industry leaders and community partners must collaborate. At the University of Houston, where approximately half of students are first-generation, it is our responsibility as educators to provide vital support. This includes facilitating connections, showcasing role models and expanding their awareness of opportunities. As the energy university located in Houston, a city rich in diverse talent, we have a unique advantage of continuing to build on Houston’s global leadership and demonstrating solutions at scale. By fostering this collaboration, we can inspire and empower the next generation.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

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Houston researcher dives into accessibility of public EV charging stations

EV equity

A Rice University professor wants to redraw the map for the placement of electric vehicle charging stations to level the playing field for access to EV power sources.

Xinwu Qian, assistant professor of civil and environmental engineering at Rice, is leading research to rethink where EV charging stations should be installed so that they’re convenient for all motorists going about their day-to-day activities.

“Charging an electric vehicle isn’t just about plugging it in and waiting — it takes 30 minutes to an hour even with the fastest charger — therefore, it’s an activity layered with social, economic, and practical implications,” Qian says on Rice’s website. “While we’ve made great strides in EV adoption, the invisible barriers to public charging access remain a significant challenge.”

According to Qian’s research, public charging stations are more commonly located near low-income households, as these residents are less likely to afford or enjoy access to at-home charging. However, these stations are often far from where they conduct everyday activities.

The Rice report explains that, in contrast, public charging stations are geographically farther from affluent suburban areas. However, they often fit more seamlessly into these residents' daily schedules. As a result, low-income communities face an opportunity gap, where public charging may exist in theory but is less practical in reality.

A 2024 study led by Qian analyzed data from over 28,000 public EV charging stations and 5.5 million points across 20 U.S. cities.

“The findings were stark: Income, rather than proximity, was the dominant factor in determining who benefits most from public EV infrastructure,” Qian says.

“Wealthier individuals were more likely to find a charging station at places they frequent, and they also had the flexibility to spend time at those places while charging their vehicles,” he adds. “Meanwhile, lower-income communities struggled to integrate public charging into their routines due to a compounded issue of shorter dwell times and less alignment with daily activities.”

To make matters worse, businesses often target high-income people when they install charging stations, Qian’s research revealed.

“It’s a sad reality,” Qian said. “If we don’t address these systemic issues now, we risk deepening the divide between those who can afford EVs and those who can’t.”

A grant from the National Science Foundation backs Qian’s further research into this subject. He says the public and private sectors must collaborate to address the inequity in access to public charging stations for EVs.

Energy expert: Unlocking the potential of the Texas grid with AI & DLR

guest column

From bitter cold and flash flooding to wildfire threats, Texas is no stranger to extreme weather, bringing up concerns about the reliability of its grid. Since the winter freeze of 2021, the state’s leaders and lawmakers have more urgently wrestled with how to strengthen the resilience of the grid while also supporting immense load growth.

As Maeve Allsup at Latitude Media pointed out, many of today’s most pressing energy trends are converging in Texas. In fact, a recent ERCOT report estimates that power demand will nearly double by 2030. This spike is a result of lots of large industries, including AI data centers, looking for power. To meet this growing demand, Texas has abundant natural gas, solar and wind resources, making it a focal point for the future of energy.

Several new initiatives are underway to modernize the grid, but the problem is that they take a long time to complete. While building new power generation facilities and transmission lines is necessary, these processes can take 10-plus years to finish. None of these approaches enables both significantly expanded power and the transmission capacity needed to deliver it in the near future.

Beyond “curtailment-enabled headroom”

A study released by Duke University highlighted the “extensive untapped potential” in U.S. power plants for powering up to 100 gigawatts of large loads “while mitigating the need for costly system upgrades.” In a nutshell: There’s enough generating capacity to meet peak demand, so it’s possible to add new loads as long as they’re not adding to the peak. New data centers must connect flexibly with limited on-site generation or storage to cover those few peak hours. This is what the authors mean by “load flexibility” and “curtailment-enabled headroom.”

As I shared with POWER Magazine, while power plants do have significant untapped capacity, the transmission grid might not. The study doesn’t address transmission constraints that can limit power delivery where it’s needed. Congestion is a real problem already without the extra load and could easily wipe out a majority of that additional capacity.

To illustrate this point, think about where you would build a large data center. Next to a nuclear plant? A nuclear plant will already operate flat out and will not have any extra capacity. The “headroom” is available on average in the whole system, not at any single power plant. A peaking gas plant might indeed be idle most of the time, but not 99.5% of the time as highlighted by the Duke authors as the threshold. Your data center would need to take the extra capacity from a number of plants, which may be hundreds of miles apart. The transmission grid might not be able to cope with it.

However, there is also additional headroom or untapped potential in the transmission grid itself that has not been used so far. Grid operators have not been able to maximize their grids because the technology has not existed to do so.

The problem with existing grid management and static line ratings

Traditionally, power lines are given a static rating throughout the year, which is calculated by assuming the worst possible cooling conditions of a hot summer day with no wind. This method leads to conservative capacity estimates and does not account for environmental factors that can impact how much power can actually flow through a line.

Take the wind-cooling effect, for example. Wind cools down power lines and can significantly increase the capacity of the grid. Even a slight wind blowing around four miles per hour can increase transmission line capacity by 30 percent through cooling.

That’s why dynamic line ratings (DLR) are such a useful tool for grid operators. DLR enables the assessment of individual spans of transmission lines to determine how much capacity they can carry under current conditions. On average, DLR increases capacity by a third, helping utilities sell more power while bringing down energy prices for consumers.

However, DLR is not yet widely used. The core problem is that weather models are not accurate enough for grid operators. Wind is very dependent on the detailed landscape, such as forests or hills, surrounding the power line. A typical weather forecast will tell you the average conditions in the 10 square miles around you, not the wind speed in the forest where the power line is. Without accurate wind data at every section, even a small portion of the line risks overheating unless the line is managed conservatively.

DLR solutions have been forced to rely on sensors installed on transmission lines to collect real-time weather measurements, which are then used to estimate line ratings. However, installing and maintaining hundreds of thousands of sensors is extremely time-consuming, if not practically infeasible.

The Elering case study

Last year, my company, Gridraven, tested our machine learning-powered DLR system, which uses a AI-enabled weather model, on 3,100 miles of 110-kilovolt and 330-kilovolt lines operated by Elering, Estonia’s transmission system operator, predicting ratings in 15,000 individual locations. The power lines run through forests and hills, where conventional forecasting systems cannot predict conditions with precision.

From September to November 2024, our average wind forecast accuracy saw a 60 percent improvement over existing technology, resulting in a 40 percent capacity increase compared to the traditional seasonal rating. These results were further validated against actual measurements on transmission towers.

This pilot not only demonstrated the power of AI solutions against traditional DLR systems but also their reliability in challenging conditions and terrain.

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Georg Rute is the CEO of Gridraven, a software provider for Dynamic Line Ratings based on precision weather forecasting available globally. Prior to Gridraven, Rute founded Sympower, a virtual power plant, and was the head of smart grid development at Elering, Estonia's Transmission System Operator. Rute will be onsite at CERAWeek in Houston, March 10-14.

The views expressed herein are Rute's own. A version of this article originally appeared on LinkedIn.

Energy co. to build 30 micro-nuclear reactors in Texas to meet rising demand

going nuclear

A Washington, D.C.-based developer of micro-nuclear technology plans to build 30 micro-nuclear reactors near Abilene to address the rising demand for electricity to operate data centers across Texas.

The company, Last Energy, is seeking permission from the Electric Reliability Council of Texas (ERCOT) and the U.S. Nuclear Regulatory Commission to build the microreactors on a more than 200-acre site in Haskell County, about 60 miles north of Abilene.

The privately financed microreactors are expected to go online within roughly two years. They would be connected to ERCOT’s power grid, which serves the bulk of Texas.

“Texas is America’s undisputed energy leader, but skyrocketing population growth and data center development is forcing policymakers, customers, and energy providers to embrace new technologies,” says Bret Kugelmass, founder and CEO of Last Energy.

“Nuclear power is the most effective way to meet Texas’ demand, but our solution—plug-and-play microreactors, designed for scalability and siting flexibility—is the best way to meet it quickly,” Kugelmass adds. “Texas is a state that recognizes energy is a precondition for prosperity, and Last Energy is excited to contribute to that mission.”

Texas is home to more than 340 data centers, according to Perceptive Power Infrastructure. These centers consume nearly 8 gigawatts of power and make up 9 percent of the state’s power demand.

Data centers are one of the most energy-intensive building types, says to the U.S. Department of Energy, and account for approximately 2 percent of the total U.S. electricity use.

Microreactors are 100 to 1,000 times smaller than conventional nuclear reactors, according to the Idaho National Laboratory. Yet each Last Energy microreactor can produce 20 megawatts of thermal energy.

Before announcing the 30 proposed microreactors to be located near Abilene, Last Energy built two full-scale prototypes in Texas in tandem with manufacturing partners. The company has also held demonstration events in Texas, including at CERAWeek 2024 in Houston. Last Energy, founded in 2019, is a founding member of the Texas Nuclear Alliance.

“Texas is the energy capital of America, and we are working to be No. 1 in advanced nuclear power,” Governor Greg Abbott said in a statement. “Last Energy’s microreactor project in Haskell County will help fulfill the state’s growing data center demand. Texas must become a national leader in advanced nuclear energy. By working together with industry leaders like Last Energy, we will usher in a nuclear power renaissance in the United States.”

Nuclear energy is not a major source of power in Texas. In 2023, the state’s two nuclear power plants generated about 7% of the state’s electricity, according to the U.S. Energy Information Administration. Texas gains most of its electricity from natural gas, coal, wind, and solar.

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