A team of Rice University researchers has found a way to convert data center waste into clean power using rooftop solar collectors. Photo courtesy Rice University.

As data centers expand, their energy demands rise as well. Researchers at Rice University have discovered a way to capture low-temperature waste heat from data centers and convert it back into usable power.

The team has introduced a novel solar thermal-boosted organic Rankine cycle (ORC)—a power system that uses a safe working fluid to make electricity from heat. The design incorporates low-cost rooftop flat-plate solar collectors, which warm the data center’s coolant stream before it enters the ORC. The findings, published in Solar Energy, show that the additional “solar bump” helps surpass the technical roadblocks with data center waste, which has typically been too cool to generate power on its own.

The research was supported by the Alliance for Sustainable Energy LLC, the National Renewable Energy Laboratory and the U.S. Department of Energy.

“There’s an invisible river of warm air flowing out of data centers,” Laura Schaefer, the Burton J. and Ann M. McMurtry Chair of Mechanical Engineering at Rice and co-author of the paper, said in a news release. “Our question was: Can we nudge that heat to a slightly higher temperature with sunlight and convert a lot more of it into electricity? The answer is yes, and it’s economically compelling.”

Traditionally, electric heat pumps have been used to raise temperatures before recovery, but the benefits were limited because the pumps consumed significant extra power.

Kashif Liaqat, a graduate student in mechanical engineering at Rice, and Schaefer achieved a "temperature lift” by using solar energy to create thermoeconomic models. They modeled affordable, low-profile rooftop solar collectors that fed into an ORC and tied into a liquid-cooling loop. The collectors were validated against industry tools and tested at some of America’s largest data center hubs in Ashburn, Virginia, and Los Angeles, which provided varying climate challenges.

The system recovered 60 percent to 80 percent more electricity annually from the same waste heat, with a 60 percent boost in Ashburn and an 80 percent boost in Los Angeles, according to Rice. It also achieved over 8 percent higher ORC efficiency during peak hours, and an increase in annual average efficiency. The approach also lowered the cost of electricity from the recovered power by 5.5 percent in Ashburn and by 16.5 percent in Los Angeles.

“What the industry considers a weakness becomes a strength once you add solar,” Liaqat said in a news release. “That’s great news for modern data centers.”

Next up, the team will look to pilot its hybrid system in operational sites and explore thermal storage, which the researchers hope could bank solar heat during the day to assist with energy recovery efforts at night.

Fervo Energy has tapped Baker Hughes to supply technology to five power plants at Cape Station, its flagship geothermal power generation project in Utah. Photo courtesy Fervo Energy.

Fervo Energy selects Baker Hughes to supply geothermal tech for power plants

geothermal deal

Houston-based geothermal energy startup Fervo Energy has tapped Houston-based energy technology company Baker Hughes to supply geothermal equipment for five Fervo power plants in Utah.

The equipment will be installed at Fervo’s Cape Station geothermal power project near Milford, Utah. The project’s five second-phase, 60-megawatt plants will generate about 400 megawatts of clean energy for the grid.

Financial terms of the deal weren’t disclosed.

“Baker Hughes’ expertise and technology are ideal complements to the ongoing progress at Cape Station, which has been under construction and successfully meeting project milestones for almost two years,” says Tim Latimer, co-founder and CEO of Fervo. “Fervo designed Cape Station to be a flagship development that's scalable, repeatable, and a proof point that geothermal is ready to become a major source of reliable, carbon-free power in the U.S.”

Cape Station is permitted to deliver about two gigawatts of geothermal power. The first phase of the project will supply 100 megawatts of power to the grid beginning in 2026. The second phase is scheduled to come online by 2028.

“Geothermal power is one of several renewable energy sources expanding globally and proving to be a vital contributor to advancing sustainable energy development,” Baker Hughes Chairman and CEO Lorenzo Simonelli says. “By working with a leader like Fervo Energy and leveraging our comprehensive portfolio of technology solutions, we are supporting the scaling of lower-carbon power solutions that are integral to meet growing global energy demand.”

Founded in 2017, Fervo is now a unicorn, meaning its valuation as a private company has surpassed $1 billion. In March, Axios reported Fervo is targeting a $2 billion to $4 billion valuation in an IPO.

Over the course of eight years, Fervo has raised almost $1 billion in capital, including equity and debt financing. This summer, the company secured a $205.5 million round of capital.

Under a new agreement, ExxonMobil and Rice University aim to develop “systematic and comprehensive solutions” to support the global energy transition. Photo via Getty Images.

ExxonMobil, Rice launch sustainability initiative with first project underway

power partners

Houston-based ExxonMobil and Rice University announced a master research agreement this week to collaborate on research initiatives on sustainable energy efforts and solutions. The agreement includes one project that’s underway and more that are expected to launch this year.

“Our commitment to science and engineering, combined with Rice’s exceptional resources for research and innovation, will drive solutions to help meet growing energy demand,” Mike Zamora, president of ExxonMobil Technology and Engineering Co., said in a news release. “We’re thrilled to work together with Rice.”

Rice and Exxon will aim to develop “systematic and comprehensive solutions” to support the global energy transition, according to Rice. The university will pull from the university’s prowess in materials science, polymers and catalysts, high-performance computing and applied mathematics.

“Our agreement with ExxonMobil highlights Rice’s ability to bring together diverse expertise to create lasting solutions,” Ramamoorthy Ramesh, executive vice president for research at Rice, said in the release. “This collaboration allows us to tackle key challenges in energy, water and resource sustainability by harnessing the power of an interdisciplinary systems approach.”

The first research project under the agreement focuses on developing advanced technologies to treat desalinated produced water from oil and gas operations for potential reuse. It's being led by Qilin Li, professor of civil and environmental engineering at Rice and co-director of the Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT) Center.

Li’s research employs electrochemical advanced oxidation processes to remove harmful organic compounds and ammonia-nitrogen, aiming to make the water safe for applications such as agriculture, wildlife and industrial processes. Additionally, the project explores recovering ammonia and producing hydrogen, contributing to sustainable resource management.

Additional projects under the agreement with Exxon are set to launch in the coming months and years, according to Rice.

XGS Energy plans to “aggressively expand” its team in Houston this year thanks to its latest round of investments. Photo via Getty Images

Houston geothermal company closes $13M in investments to fuel growth

fresh funding

XGS Energy, a California-headquartered geothermal power company with a major presence in Houston, has closed $13 million in new financing that included new investors Aligned Climate Capital, ClearSky, ClimateIC and WovenEarth Ventures, in addition to inside investors.

The company plans to “aggressively expand” its team in Houston this year, according to a news release.

“We are facing global energy supply challenges of unprecedented scale and urgency,” Kevin Kimsa, Managing Partner at ClimateIC, said in the release. “The XGS team is uniquely primed to meet the moment, bringing together innovative technology and leading engineering talent with the deep experience in infrastructure development and financing critical to deploying large-scale energy systems at speed.”

As part of the financing deal, Mano Nazar, ClearSky Senior Advisor and the former Chief Nuclear Officer of NextEra Energy, will join the XGS Energy Board of Directors.

“XGS’s advanced geothermal technology is uniquely positioned to deliver abundant energy to the grid faster than any other baseload energy technology at a time of unprecedented demand for energy resources,” Nazar said in a news release. “We are excited to partner with XGS to deliver on their mission of sustainable, reliable, and scalable geothermal energy.”

XGS is known for its next-gen closed-loop geothermal well architecture. The company saw massive growth in the Houston market last year and recently completed a 100-meter field demonstration in central Texas. The new funding supports the XGS’s multi-gigawatt project pipeline.

The recent financing also builds on an oversubscribed Series A round led by Constellation Technology Ventures, VoLo Earth Ventures, and Valo Ventures that closed last year.

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

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

switch flipped

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.

———

This article originally ran on InnovationMap.

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Texas data center proposed by U.S. Army could use more power than El Paso

Big Data

The U.S. Army is proposing developing a gargantuan, 3-gigawatt data center complex on Fort Bliss property that within a few years would consume more electricity than all of El Paso Electric’s 460,000 customers combined – even as questions about its development, water usage and air pollution remain unanswered.

If built, it would be the third major data center project in the El Paso region, along with Meta Platform’s $10 billion facility in Northeast and the $165 billion Project Jupiter campus that Oracle and OpenAI are building in Santa Teresa, New Mexico. The combined scale and size of the three facilities could quickly transform the Borderland into one of the nation’s core hubs of power generation and AI infrastructure.

The publicly-traded investment firm Carlyle Group would pay to build and operate the Fort Bliss data center – one of several planned in a national rollout under President Donald Trump’s administration to rapidly increase artificial intelligence technology for the Department of Defense.

At Fort Bliss, the Army is “targeting an initial operating capacity of about 100 megawatts on the compute side” by next year, David Fitzgerald, deputy undersecretary of the Army, said during a meeting with reporters April 22. An official estimated cost for the project has yet to be released.

By 2029, the complex on military land in far East El Paso would require 3 gigawatts of electricity, Fitzgerald said. By comparison, El Paso Electric currently maintains about 2.9 gigawatts of generation capacity across its entire system that spans from Hatch, New Mexico, to Van Horn, Texas. The highest customer demand the power company has ever seen was just over 2.3 gigawatts during the summer of 2023.

And whether most El Pasoans are on board with the rapid buildout of another data center here is not a question that Army leadership is asking at this point.

“What we’re trying to do is find where are the common interests, common ground that we can solve for?” Fitzgerald said, referring to coordinating with El Paso city leaders on the data center project.

“The state of modern warfare and future warfare is largely going to depend on the ability to capture, process and utilize massive amounts of data,” he said. “So, the reality is, this is a strategic priority, not just for the Army, but for the entire Department of War. So, we need these capabilities, and we need to put them somewhere.”

Combined-cycle natural gas turbines are the “most likely” source of electricity generation for the facility, said Jeff Waksman, an assistant secretary of the Army and former member of Trump’s first administration.

Waksman said the facility would undergo environmental review before construction starts.

Still, there are far more outstanding questions than answers about the proposed Fort Bliss data center.

It’s unclear if the facility would connect to El Paso Water’s water system. The city-owned water utility pointed out that Fort Bliss Water provides water service for the installation. However, El Paso Water can provide “backup” service to the base, according to the project solicitation documents.

“EPWater was just recently brought into the discussion, and we only have preliminary information,” El Paso Water said in a statement. “The construction and water use would be entirely on federal property.”

El Paso Electric said it’s also uncertain whether the data center will connect to the utility’s power grid and will figure that out in the future. To date, the Army hasn’t made a formal request for service from El Paso Electric.

Officials from the U.S. Army “confirmed that questions regarding the power source and whether it will be connected to the regional grid remain under review and have plans to establish a data center with a projected demand of 3 gigawatts,” El Paso Electric said in a statement. “Ultimately, decisions about these matters will be made by Fort Bliss leadership, and we defer to them for further comment.”

A representative with Carlyle Group at a recent community meeting didn’t answer questions or provide details about the proposed data center facility and the related power generation source.

Carlyle Group did not respond to a request for comment.

Army officials said they don’t yet have a definitive agreement in place with Carlyle, which was conditionally selected to enter into exclusive negotiations, so few details are finalized.

However, the Army has set a short timeline to start operating by late 2027. That means construction will have to start soon, Fitzgerald said.

“The ideal endstate is that we would be at least (operational) by the end of ’27, which is moving pretty quick,” Fitzgerald said. “That would mean construction would need to begin in the not-so-distant future.”

Water, electricity concerns

Meeting three gigawatts of electricity demand with natural gas-fired turbines – cited by Army officials as the most likely power source – would likely produce huge amounts of greenhouse gases in a central area of El Paso, such as carbon dioxide, as well as other harmful pollutants including particulate matter.

And even if the data center doesn’t take service from El Paso Water and instead receives water from wells managed by Fort Bliss, it would rely on groundwater pumped out of the Hueco Bolson aquifer, the city’s main source of water.

The solicitation issued by the Army cites water risk for El Paso as “extremely high” and notes that most of Fort Bliss’ water supply comes from wells within the installation.

Fitzgerald said the Army is aware of the public’s concern that the data center could unsustainably guzzle El Paso’s groundwater to cool the data center’s computer servers. He said the facility will be “water neutral.”

It’s also not clear how the project could replace the same amount of water that it consumes.

It’s possible the Kay Bailey Hutchison Desalination Plant – co-owned by El Paso Water and the U.S. Army – could play a role in making the data center water neutral. But El Paso Water said it has no details about how the data center facility could achieve water neutrality.

El Paso Water is “more than willing to continue to share ideas for best practices in sustainability to help protect our regional water resources,” the utility said in its statement.

As far as electricity generation, Army officials said they don’t know if El Paso Electric would build a new power plant to serve the data center. It’s also possible that Carlyle Group or another private company could build its own power generation source for the data center that’s isolated from the power grid El Pasoans use every day.

“We have to decide whether El Paso Electric is going to be the ones building whatever is coming, or if this is going to be some independent power producer,” Waksman said.

El Paso Electric is planning to develop a 366 megawatt power plant made up of over 800 small gas generators to power Meta’s data center. The utility will build more generation in the coming years to meet 1 gigawatt of total demand from Meta’s facility. Meanwhile, as the technology giant Oracle develops Project Jupiter, the company said Monday it is seeking to power the campus using 2.45 gigawatts of fuel cell power systems provided by the company Bloom Energy.

For perspective, 3.45 gigawatts – the combined projected demand of those two major data centers – is enough electricity to power as many as a million homes, depending on the time of day and weather.

The Fort Bliss project would have to meet environmental regulatory requirements, and the developer needs to include a plan for providing utilities and infrastructure needs such as access to the facility, according to a request for proposals issued by the Army in December 2025. Army officials emphasized the project would not impact El Pasoans’ water or electric bills.

Who is Carlyle Group?

Carlyle Group is a global investment management firm that oversees $477 billion of assets from entities such as pension funds.

The company invests that money by buying businesses ranging from wine producers to Asian telecommunications companies, or by developing infrastructure projects such as renewable energy generation and data centers. The company in 2025 posted distributable earnings of nearly $1.7 billion on $4.8 billion in revenue.

The Army wants to build the facility at Fort Bliss in partnership with Carlyle because the installation has a large amount of available, unused land and because of the water and electricity infrastructure already in place in El Paso, Fitzgerald said.

The Carlyle data center planned for El Paso is part of a wider U.S. military effort to quickly build infrastructure that supports the use of artificial intelligence — both on the battlefield and in running its day-to-day operations, according to government documents.

Army officials nodded to the use of AI in drone warfare and targeting systems. And a hyperscale data center facility can also securely house information such as the military’s cloud database that details pay and entitlements for every U.S. soldier, said Maj. Gen. Curtis Taylor, commanding general of the 1st Armored Division and Fort Bliss.

Data centers are “essential parts of power projection,” Taylor said. “But we have to protect those servers. And that’s why there’s great utility in building that infrastructure on military installations.”

The Fort Bliss facility would be located on a plot of land near the intersection of Loop 375 and Montana Avenue. The site is just east of the Camp East Montana immigrant detention facility, and near El Paso Electric’s gas-fired Montana power station.

The plan is for Carlyle to utilize the majority of the data center’s capacity for its business needs, and the military would have access to a more secure portion of the data center for its own uses.

The Army is developing another similar data center project in Dugway, Utah. Other Army bases identified as potential sites include Fort Hood in Texas and Fort Bragg in North Carolina.

The U.S. Air Force in October issued a solicitation saying it is “accepting proposals for the development of Artificial Intelligence data centers,” on unused land at different bases, including in California, Georgia, Arizona and Tennessee. The push was enabled by executive orders signed by Trump that seek to speed up permitting and development timelines for AI data centers.

Would the Fort Bliss data center pay taxes?

A privately-financed data center on Fort Bliss would likely have to pay some taxes – unlike on-base government facilities – but there’s a lot of uncertainty.

Carlyle Group is leasing the land for the data center under an “enhanced use lease” that allows branches of the military to rent under-used land on bases.

Land on federal installations is not subject to state or local taxes. However, the statute that authorizes the U.S. military to lease excess land to private entities says that “the interest of a lessee of property leased under this section may be taxed by State or local governments.”

So, while the land the data center is built on would not be subject to taxation, the structures housing the data center could be subject to local property taxes.

But it depends on how the deal is structured, including factors such as whether Carlyle or the Army ultimately takes ownership of the buildings.

The Army in January awarded a contract to Korean-owned Hanwha Defense USA, which will invest $1.3 billion to develop a munitions factory at a base in Pine Bluff, Arkansas, using an enhanced use lease.

Fitzgerald, the Army undersecretary, acknowledged the public pushback to other data centers such as Meta and Project Jupiter. But he said the Army wants to ensure the project is developed “the right way.”

“There are always elements that will kind of make this an ‘us versus them’ sort of a construct, but I don’t think we view it that way from the Army,” he said. “I think there’s a path here that will benefit not just the installation, but the community as well.”

CenterPoint launches real-time tracker to map Houston’s power grid upgrades

resiliency plan

Houstonians can now track electronic infrastructure improvements via CenterPoint’s new Community Progress Tracker, part of the company’s ongoing Greater Houston Resiliency Initiative.

The tracker allows users to search by zip code and see completed work in real time, as well as updates on upcoming projects that highlight infrastructure improvements and efforts to strengthen the power grid in the face of extreme weather. Users can view icons on a map that track automation and intelligence projects, storm-resilient pole and equipment installations, undergrounding work and tree trimmings.

CenterPoint had installed 10,000 storm-resilient poles, cleared 1,600 miles of higher-risk vegetation, completed 99 miles of power line undergrounding and hardened 220 miles of power lines by the end of Q1 2026, according to the company.

For the rest of 2026, CenterPoint aims to install 35,000 stronger, storm-resilient poles, clear high-risk vegetation from 8,000 miles of power lines and harden 500 transmission structures against storms.

Via centerpointenergy.com

“We are proud of the progress made in 2025, which helped deliver more than 100 million fewer outage minutes when compared to 2024, and we are determined to make even more progress in 2026 as we work toward our defining goal: building the nation's most resilient coastal grid,” Nathan Brownell, CenterPoint's vice president of resilience and capital delivery, said in a news release. “To date, we are ahead of schedule in making critical 2026 GHRI improvements, and we will continue to build the stronger, smarter infrastructure necessary to further improve systemwide reliability and strengthen resiliency, reducing the likelihood and impact of outages for our customers.”

Woodlands-based company signs deal to develop 200 MW battery storage project

power deal

The Woodlands-based Plus Power announced this month that it has entered into a 20-year energy storage agreement with Tennessee Valley Authority (TVA), one of the largest public energy providers in the U.S.

Through the agreement, Plus Power and TVA will develop the Crawfish Creek Energy Storage project, a 200-megawatt / 800-megawatt-hour utility-scale battery energy storage facility in Jackson County, Alabama.

Construction on Crawfish Creek Energy Storage is expected to begin in 2028, and commercial operation is planned for the summer of 2029. The project will store electricity when demand is low and release it during peak periods, helping improve grid reliability, affordability, and energy security, according to a news release.

"Battery storage is essential to protecting the reliable, affordable electricity our region depends on to power next-generation technologies," Monika Beckner, TVA vice president, power supply & fuels, said in the release. "Projects like Crawfish Creek strengthen the Valley's energy security, improve our ability to manage extreme conditions, and help unleash American energy."

TVA selected Plus Power for the project in 2025 via a request for proposal to supply new capacity resources needed across the region. Plus Power currently owns and operates nine facilities that provide enhanced power reliability to Arizona, Hawaii, Maine, Massachusetts and Texas, totaling 1,650 megawatts/4,150 megawatt-hours. With this deal, Plus Power is entering its seventh state market and expanding into the Southeast.

"Plus Power is proud to support energy resilience in Jackson County and the Tennessee Valley, a key region for America's military, aerospace, and nuclear innovation," Brian Duncan, chief commercial officer at Plus Power, said in a news release. "Battery energy storage systems are flexible and millisecond-fast, making Crawfish Creek uniquely suited to meet the region's evolving needs. We are excited to partner with TVA to deliver a resource that supports economic expansion while strengthening American energy dominance and security.”