UH researchers make breakthrough in cutting carbon capture costs

Carbon breakthrough

A team from UH has published two breakthrough studies that could help cut costs and boost efficiency in carbon capture. Photo courtesy UH.

A team of researchers at the University of Houston has made two breakthroughs in addressing climate change and potentially reducing the cost of capturing harmful emissions from power plants.

Led by Professor Mim Rahimi at UH’s Cullen College of Engineering, the team released two significant publications that made significant strides relating to carbon capture processes. The first, published in Nature Communications, introduced a membraneless electrochemical process that cuts energy requirements and costs for amine-based carbon dioxide capture during the acid gas sweetening process. Another, featured on the cover of ES&T Engineering, demonstrated a vanadium redox flow system capable of both capturing carbon and storing renewable energy.

“These publications reflect our group’s commitment to fundamental electrochemical innovation and real-world applicability,” Rahimi said in a news release. “From membraneless systems to scalable flow systems, we’re charting pathways to decarbonize hard-to-abate sectors and support the transition to a low-carbon economy.”

According to the researchers, the “A Membraneless Electrochemically Mediated Amine Regeneration for Carbon Capture” research paper marked the beginning of the team’s first focus. The research examined the replacement of costly ion-exchange membranes with gas diffusion electrodes. They found that the membranes were the most expensive part of the system, and they were also a major cause of performance issues and high maintenance costs.

The researchers achieved more than 90 percent CO2 removal (nearly 50 percent more than traditional approaches) by engineering the gas diffusion electrodes. According to PhD student and co-author of the paper Ahmad Hassan, the capture costs approximately $70 per metric ton of CO2, which is competitive with other innovative scrubbing techniques.

“By removing the membrane and the associated hardware, we’ve streamlined the EMAR workflow and dramatically cut energy use,” Hassan said in the news release. “This opens the door to retrofitting existing industrial exhaust systems with a compact, low-cost carbon capture module.”

The second breakthrough, published by PhD student Mohsen Afshari, displayed a reversible flow battery architecture that absorbs CO2 during charging and releases it upon discharge. The results suggested that the technology could potentially provide carbon removal and grid balancing when used with intermittent renewables, such as solar or wind power.

“Integrating carbon capture directly into a redox flow battery lets us tackle two challenges in one device,” Afshari said in the release. “Our front-cover feature highlights its potential to smooth out renewable generation while sequestering CO2.”

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A forecast from Energy Innovation Policy & Technology shows that Texas is expected to see a decline in solar, wind and battery-powered storage by 2035 due to clean energy tax credit repeals in the 'One Big Beautiful Bill Act.' Photo via Getty Images.

New forecast shows impact of 'Big Beautiful Bill' on Texas clean energy generation

energy forecast

Texas is expected to see a 77-gigawatt decrease in power generation capacity within the next 10 years under the federal "One Big Beautiful Bill Act," which President Trump recently signed into law, a new forecast shows.

Primarily due to the act’s repeal of some clean energy tax credits, a forecast, published by energy policy research organization Energy Innovation Policy & Technology, predicts that Texas is expected to experience a:

54-gigawatt decline in capacity from solar power by 2035
23-gigawatt decline in capacity from wind power by 2035
3.1-gigawatt decline in capacity from battery-stored power by 2035
2.5-gigawatt increase in capacity from natural gas by 2035

The legislation “will reduce additions of new, cost-effective electricity capacity in Texas, raising power prices for consumers and decreasing the state’s GDP and job growth in the coming years,” the forecast says.

The forecast also reports that the loss of sources of low-cost renewable energy and the resulting hike in natural gas prices could bump up electric bills in Texas. The forecast envisions a 23 percent to 54 percent hike in electric rates for residential, commercial and industrial customers in Texas.

Household energy bills are expected to increase by $220 per year by 2030 and by $480 per year by 2035, according to the forecast.

Energy Innovation Policy & Technology expects job growth and economic growth to also take a hit under the "Big Beautiful Bill."

The nonprofit organization foresees annual losses of $5.9 billion in Texas economic output (as measured by GDP) by 2030 and $10 billion by 2035. In tandem with the impact on GDP, Texas is projected to lose 42,000 jobs by 2030 and 94,000 jobs by 2035 due to the law’s provisions, according to the organization.

The White House believes the "Big Beautiful Bill" will promote, not harm, U.S. energy production. The law encourages the growth of traditional sources of power such as oil, natural gas, coal and hydropower.

“The One Big Beautiful Bill Act is a historic piece of legislation that will restore energy independence and make life more affordable for American families by reversing disastrous Biden-era policies that constricted domestic energy production,” Interior Secretary Doug Burgum said in a news release.

Promoters of renewable energy offer an opposing viewpoint.

“The bill makes steep cuts to solar energy and places new restrictions on energy tax credits that will slow the deployment of residential and utility-scale solar while undermining the growth of U.S. manufacturing,” says the Solar Energy Industries Association.

Jason Grumet, CEO of the American Clean Power Association, complained that the legislation limits energy production, boosts prices for U.S. businesses and families, and jeopardizes the reliability of the country’s power grid.

“Our economic and national security requires that we support all forms of American energy,” Grumet said in a statement. “It is time for the brawlers to get out of the way and let the builders get back to work.”

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

Houston's Rhythm Energy expands nationally with clean power acquisition

power deal

Houston-based Rhythm Energy Inc. has acquired Inspire Clean Energy for an undisclosed amount. The deal allows Rhythm to immediately scale outside of Texas and into the Northeast, Midwest and mid-Atlantic regions, according to a release from the company.

Inspire offers subscription-based renewable electricity plans to customers in Pennsylvania, New York, New Jersey, Massachusetts, Ohio, Delaware, Illinois, Maryland, and Washington, D.C. By combining forces, Rhythm will now be one of the largest independent green-energy retailers in the country.

“Adding Inspire to the Rhythm family gives us the geographic reach to serve millions of new customers with the highly rated customer experience Texans already enjoy,” PJ Popovic, CEO of Rhythm, said in the release. “Together we become one of the largest independent green-energy retailers in the country and can roll out innovations like our PowerShift Time-of-Use plan and device-enabled demand-response programs that put customers fully in control of their energy costs.”

Rhythm was founded by Popovic in 2020 and offers 100 percent renewable energy plans using solar power, wind power and other renewable power sources.

In addition to scaling geographically, the acquisition will "(marry) Rhythm's data-driven technology with Inspire's successful subscription model." Rhythm also plans to upgrade its digital tools and provide more advanced services to help lower clean energy costs, according to the release.

Popovic spoke with EnergyCapital in 2023 about where he thinks renewables fit into Texas’s energy consumption. Read more here.

Engie will supply up to 300 megawatts of wind power to New York-based Cipher Mining, which develops and operates large data centers for cryptocurrency mining. Photo via Getty Images.

Engie signs deal to supply wind power for Texas data center

wind deal

Houston-based Engie North America, which specializes in generating low-carbon power, has sealed a preliminary deal to supply wind power to a Cipher Mining data center in Texas.

Under the tentative agreement, Cipher could buy as much as 300 megawatts of clean energy from one of Engie’s wind projects. The financial terms of the deal weren’t disclosed.

Cipher Mining develops and operates large data centers for cryptocurrency mining and high-performance computing.

In November, New York City-based Cipher said it bought a 250-acre site in West Texas for a data center with up to 100 megawatts of capacity. Cipher paid $4.1 million for the property.

“By pairing the data center with renewable energy, this strategic collaboration supports the use of surplus energy during periods of excess generation, while enhancing grid stability and reliability,” Engie said in a news release about the Cipher agreement.

The Engie-Cipher deal comes amid the need for more power in Texas due to several factors. The U.S. Energy Information Administration reported in October that data centers and cryptocurrency mining are driving up demand for power in the Lone Star State. Population growth is also putting pressure on the state’s energy supply.

Last year, Engie added 4.2 gigawatts of renewable energy capacity worldwide, bringing the total capacity to 46 gigawatts as of December 31. Also last year, Engie signed a new contract with Meta (Facebook's owner) and expanded its partnership with Google in the U.S. and Belgium.

Competing virtually against 145 teams from 34 countries, the students, known as The Dream Team, won third place for their plan to address energy poverty in Egypt and Turkey. Photo courtesy of UH

Houston university students earn top honors at global energy-poverty competition

dream team

A student-led team from the University of Houston and Texas A&M University took home top prizes at last month's Switch Energy Alliance Case Competition.

Competing virtually against 145 teams from 34 countries, the students, known as The Dream Team, won third place for their plan to address energy poverty in Egypt and Turkey. They were awarded $5,000 in prize money.

The competition challenges student teams to solve real-world energy problems to "drive progress towards a sustainable and equitable energy future," according to the Switch competition's website.

“The Switch competition tackles major issues that we often don’t think about on a daily basis in the United States, so it is a really interesting and tough challenge to solve,” Sarah Grace Kimberly, a senior finance major at UH and member of the team, said in a statement from the university

Kimberly was joined by Pranjal Sheth, a fellow senior finance major at UH, and Nathan Hazlett, a finance graduate student at TAMU with a bachelor’s degree in petroleum engineering.

The Dream Team developed a 10-year plan to address Egypt and Turkey's energy poverty that would create 200,000 jobs, reduce energy costs and improve energy access in rural areas. Its major components included:

Developing rooftop and utility-scale solar farms and solar canopies over irrigation canals
Expanding wind power capacity by taking advantage of high wind speeds in the Gulf of Suez and Western Desert
Deploying cost-efficient technologies along the Nile for rural electrification

“People in the United States should be extremely thankful for the infrastructure and systems that allow us to thrive with power, food and water,” Sheth said in the statement. “Texas went through Winter Storm Uri in 2021—people were without electricity for weeks, and lives were lost. It still comes up in conversations, but certain regions of the world, developing nations, live that experience almost every day. We need to make that a larger part of the conversation and work to help them.”

Team Quwa, a team of four students from the University of Texas at Austin, took home second place and $7,000 in prize money.

“This journey was both intellectually enriching and personally fulfilling,” Mohamed Awad, a PhD candidate at the Hildebrand Department of Petroleum and Geosystems Engineering, said in a statement from UT. “Through the case competition, we had an opportunity to contribute meaningful ideas to address a critical global issue.”

Team Energy Nexus from India earned the top prize and took home $10,000, according to a release from Switch.

Switch Energy Alliance is an Austin-based non-profit that's focused on energy education. The Switch competition began in 2020. Teams of three to four students create a presentation and 15-minute video. The top five teams present their case studies live and answer questions before a panel of judges.

More than 3,200 students from 55 countries have competed over the years. Click here to watch the 2024 final round.

Texas gets a gold star when it comes to projected wind power capacity. Photo via Getty Images

Texas ranks among the leading states for projected wind power capacity

We're No. 1

A new report ranks Texas in the top three states that are blowing away nationwide wind power capacity projections.

Texas, Wyoming, and Iowa are standing out in terms of wind power capacity, according to a report from Texas Real Estate Source, a Texas real estate, travel, and lifestyle website, that analyzed all 50 states and ranked them by total projected capacity, capacity per capita, and capacity per square mile.

Nationwide wind power capacity is projected to grow exponentially in the coming years, with Texas, Wyoming, and Iowa leading the charge. With 44,974 megawatts of projected wind power capacity, Texas leads the country in terms of volume. Wyoming, meanwhile, leads the nation in projected wind power capacity per capita with 6,679 MW serving a population of 581,381, and Iowa takes first place in projected wind power capacity per square mile.

"As renewable energy continues to command center-stage attention and massive financial investment, wind power has proven to be an indispensable tool in the clean energy toolbox," reads the report.

In its top spot, Texas' projected wind power capacity is more than triple the capacity of second place, Oklahoma, but the Lone Star State falls to ninth place in the ranking of capacity per capita with 1.5 kilowatts.

“It’s no surprise to see Texas significantly outpacing the nation in installed and projected wind power capacity," says a spokesperson from Texas Real Estate Source. "The combination of boundless land, favorable wind patterns, and highly-respected research institutions has made it the perfect place for wind power adoption. It’s revealing, however, to see the per capita and per square mile rankings: they give us a more complete picture of which states are at the forefront of wind power development.”

A few other states to take note of in the report are California and Arkansas. California ranks No. 7 when it comes to total projected wind power capacity but only is No. 24 in the per capita ranking. And, considering the state has only 104 MW currently under construction, California doesn't seem to be keeping up with its population.

Arkansas, meanwhile, has 180 MW currently under construction — previously having a projected zero MW of wind power capacity. Once this is done, Arkansas will outperform 17 other states.

When it comes to wind power jobs, the Lone Star State is making some moves on that front too, according to another report. The SmartAsset study found that 2.23 percent of workers in the Houston area hold down jobs classified as “green.” Per the Department of Energy, Texas tallied almost 25,500 wind energy jobs in 2021.

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Greentown Labs partners with California software developer on new center

power partnership

Greentown Labs has partnered with Los Angeles-based software development firm Nominal to launch the new Industrial Center of Excellence at Greentown's Houston incubator.

Nominal will provide access to its connected test and operations stack to help engineers working at Greentown Houston startups boost their "efficiency, automation, and scalability," according to a news release. The news comes just a few days after Greentown announced a partnership with Houston-based EnergyTech Nexus, which will also open an investor lounge on-site.

"Our mission is to remove friction for innovative entrepreneurs, so they can rapidly scale their transformative solutions," Lawson Gow, Greentown's Head of Houston, said in the release. "The Industrial Center of Excellence with Nominal will complement Greentown's robust prototyping, equipment, and lab offerings to accelerate entrepreneurs' ability to bring disruptive technologies out of the lab and into the world."

According to Greentown and Nominal, the partnership will support startups that are focused on decarbonizing the manufacturing sector, which Greentown estimates represents about a third of startups in its Houston incubator.

The new center will host specialized workshops and Nominal will now offer weekly office hours for Greentown startups.

"The future belongs to teams who can deliver resilient hardware faster than anyone else," Bryce Strauss, co-founder of Nominal, added in the statement. "Competitive edge is defined by test velocity. Nominal is building a connected stack of software tools where every discipline works shoulder-to-shoulder to make confident, real-time decisions."

Nominal, which supports engineering work in the aerospace, energy, automotive and defense industries, closed a $75 million series B round this summer.

CPS Energy invests $1.4B in Houston hydrogen-ready power plants

CPS Energy, which services San Antonio, has agreed to acquire four state-of-the-art natural gas power generation facilities in the Houston area from Missouri-based PROENERGY for $1.387 billion, according to a release.

The recently constructed plants have an aggregate electric capacity of 1,632 megawatts and are located in the Electric Reliability Council of Texas (ERCOT) markets in Harris, Brazoria and Galveston counties. The assets are dual-fuel capable, which would allow CPS Energy to transition to a hydrogen fuel blend and reduce carbon emissions.

CPS president and CEO Rudy Garza said that the acquisition presents a lower cost and lower supply chain risk alternative to building new power facilities while providing reliable, affordable and cleaner energy.

“We are getting the best of both worlds by securing new infrastructure without delay while also strengthening the power supply for our community,” Garza said in a news release. “This acquisition secures reliable capacity today – at a lower cost – and is a win for the customers of CPS Energy, the city of San Antonio and all the communities we serve by meeting their long-term energy needs. As we add resources to meet the needs of our fast-growing communities, we will continue to look to a diverse balance of energy sources that complement our portfolio, including natural gas, solar, wind, and storage, keeping our community powered and growing.”

PROENERGY will continue to staff, operate, and maintain the plants.

“By acquiring recently constructed, currently operating modern power plants that utilize proven technology already in use by CPS Energy, we avoid higher construction costs, inflationary risk, and long timelines associated with building new facilities – while also enhancing the reliability and affordability of the CPS Energy generation portfolio,” Garza added in the release.

CPS Energy is one of the nation’s largest public power, natural gas, and electric companies with 950,000 electric and 389,000 natural gas customers in the San Antonio area and surrounding counties.

Expert: How technology is transforming energy education and powering young minds

Guest Column

In today’s ever-changing digital world, the way we teach kids about science is rapidly transforming. Energy education, specifically, is expanding and contributing to the STEM landscape significantly. Helping children understand where energy comes from, how we use it in our everyday lives and how it affects our planet is critical to sparking early interest in STEM learning and inspiring potential careers in the energy industry.

Thanks to new technology and the power of artificial intelligence, we are better equipped to explain these complex ideas in fun, interactive and easy-to-understand ways.

The Role of Educational Technology in Classrooms

Traditional teaching methods can struggle to connect scientific concepts to students’ everyday experiences. A 2023 study found that technology not only makes learning more engaging and enjoyable but also encourages students to invest more effort in their studies over time.

Tools like tablets, smartboards, interactive simulations and gamified learning apps allow students to visualize energy systems, conduct virtual experiments and explore dynamic models that demonstrate how energy flows through different systems.

For example, virtual labs allow students to simulate the installation of solar panels or observe how wind turbines convert kinetic energy into electricity, all without leaving the classroom. These digital tools transform abstract theories into concrete, hands-on experiences, making it easier for students to understand and retain core principles of energy science.

Gamified learning has also become increasingly popular in K–12 classrooms because it engages students by meeting them where they are through interactive, game-like experiences. By incorporating familiar motivators such as points, levels, rewards and challenges, it taps into the same engagement techniques students encounter in video games and apps outside the classroom.

In an era when competition for students’ attention is higher than ever, more educators are turning to gamification because it works; it transforms passive learning into an active, student-centered experience, helping learners stay focused and motivated.

When applied to energy education, gamification can be especially powerful. Educational games that task students with managing a virtual city, designing energy-efficient systems or balancing an energy budget help build valuable real-world skills like problem-solving and systems thinking. Most importantly, they keep students engaged and make learning about energy meaningful.

Equity and Access in Educational Technology

While technology and AI offer immense potential to transform energy education, it is crucial to address the digital divide that exists across different schools and communities. Not all students have equal access to the devices, software or reliable internet connectivity needed to benefit from these innovative learning tools.

Bridging this gap requires collaborative efforts through public-private partnerships, targeted grants and community-driven educational outreach programs. These initiatives play a vital role in ensuring that every student, regardless of socioeconomic background or geographic location, has the opportunity to engage with tech-driven energy education.

Organizations like the Energy Education Foundation are taking meaningful steps in this direction. This fall, the nonprofit is launching EnergyXP, an innovative, mobile STEM learning experience designed for middle school students. The program offers 16 interactive, hands-on, and digital activities aligned with the Next Generation Science Standards, and is provided free of charge to participating schools. Through EnergyXP, students explore diverse energy concepts while building curiosity, collaboration and critical thinking skills. The program links classroom learning to real-world applications, helping students see the role of energy in their daily lives and sparking interest in STEM careers.

Other promising initiatives such as community tech hubs, low connectivity learning platforms, school-device loan programs and subsidized broadband options also support increased access to digital education. In Harris County, the Commissioners Court recently voted unanimously to create the Harris County Broadband Task Force with the aim of expanding internet access and affordability and addressing the growing digital literacy demands in the region. Additionally, Compudopt, a partner of the Energy Education Foundation, is another valuable resource for the Houston-area community. Its programs work to eliminate barriers to computer access, build technical and digital literacy skills, offer no- or low-cost high-speed internet options and support the long-term success of youth and their communities.

By supporting programs and organizations that decrease the digital divide, we can ensure that all students have access to engaging, technology-driven energy education. Providing young learners with the tools to explore, innovate and connect with the energy systems that power their world is key to building a more diverse, inclusive energy workforce for the future.

AI is Transforming the Energy Landscape

Students who utilize technology and AI in the classroom will be better equipped for the energy jobs of the future. As the energy sector continues to evolve, AI is becoming an essential tool for addressing complex challenges from optimizing energy production and distribution to accelerating innovation and improving system reliability.

By exposing students to AI-driven learning experiences early on, we can help them build the skills needed to understand and contribute to emerging technologies such as smart grids, predictive maintenance, renewable energy forecasting and energy storage optimization. These technologies are already shaping the future of how we produce, store and consume energy.

Through hands-on engagement with AI-powered simulations, data analysis tools and problem-solving scenarios, students are learning how to lead in a tech-driven, sustainable energy future.

As the world transitions toward more technology-driven energy systems, the importance of early, engaging and equitable energy education has never been more critical. Through the integration of technology, gamified learning and AI in the classroom, we can make science more accessible and empower students with the knowledge and skills they need to shape the future. Programs like EnergyXP demonstrate how innovation in education can bridge opportunity gaps, spark curiosity and lay the groundwork for a more inclusive and forward-thinking energy workforce. The investments we make in today’s classrooms will determine the energy leaders of tomorrow.

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Kristen Barley is the executive director of the Energy Education Foundation, a nonprofit dedicated to inspiring the next generation of energy leaders by providing comprehensive, engaging education that spans the entire energy spectrum.

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