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Rice University team finds economical way to recycle data center heat into power

waste not

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.

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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.

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This article originally ran on InnovationMap.

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Houston companies partner to advance industrial carbon capture tech

green team

Carbon Clean and Samsung E&A, both of which maintain their U.S. headquarters in Houston, have formed a partnership to accelerate the global use of industrial carbon capture systems.

Carbon Clean provides industrial carbon capture technology. Samsung E&A offers engineering, construction and procurement services. The companies say their partnership will speed up industrial decarbonization and make carbon capture more accessible for sectors that face challenges in decarbonizing their operations.

Carbon Clean says its fully modular columnless carbon capture unit, known as CycloneCC, is up to 50 percent smaller than traditional units and each "train" can capture up to 100,000 tonnes of CO2 per year.

“Our partnership with Samsung E&A marks a major milestone in scaling industrial carbon capture,” Aniruddha Sharma, chair and CEO of Carbon Clean, said in a news release.

Hong Namkoong, CEO of Samsung E&A, added that the partnership with Carbon Clean will accelerate the global rollout of carbon capture systems that “are efficient, reliable, and ready for the energy transition.”

Carbon Clean and Samsung E&A had previously worked together on carbon capture projects for Aramco, an oil and gas giant, and Modec, a supplier of floating production systems for offshore oil and gas facilities. Aramco’s Americas headquarters is also in Houston, as is Modec’s U.S. headquarters.

Major Houston energy companies join new Carbon Measures coalition

green team

Six companies with a large presence in the Houston area have joined a new coalition of companies pursuing a better way to track the carbon emissions of products they manufacture, purchase and finance.

Houston-area members of the Carbon Measures coalition are:

  • Spring-based ExxonMobil
  • Air Liquide, whose U.S. headquarters is in Houston
  • Mitsubishi Heavy Industries, whose U.S. headquarters is in Houston
  • Honeywell, whose Performance Materials and Technologies business is based in Houston.
  • BASF, whose global oilfield solutions business is based in Houston
  • Linde, whose Linde Engineering Americas business is based in Houston

Carbon Measures will create an accounting framework that eliminates double-counting of carbon pollution and attributes emissions to their sources, said Amy Brachio, the group’s CEO. The model is expected to take two years to develop, and between five and seven years to scale up, Bloomberg reported.

The coalition wants to create a system that will “unleash markets and competition,” unlock investments and speed up the pace of emissions reduction, said Brachio, former vice chair of sustainability at professional services firm EY.

“If you can’t measure it, you can’t manage it,” said Darren Woods, chairman and CEO of ExxonMobil. “The first step to reducing global emissions is to know where they’re coming from — and today, we don’t have an accurate system to do this.”

Other members of the coalition include BlackRock-owned Global Infrastructure Partners, Banco Satanader, EY and NextEra Energy.

“Transparent and consistent emissions accounting is not just a technical necessity — it’s a strategic imperative. It enables smarter decisions and accelerates real progress across industries and borders,” said Ken West, president and CEO of Honeywell Energy and Sustainability Solutions.

Wind and solar supplied over a third of ERCOT power, report shows

power report

Since 2023, wind and solar power have been the fastest-growing sources of electricity for the Electric Reliability Council of Texas (ERCOT) and increasingly are meeting stepped-up demand, according to a new report from the U.S. Energy Information Administration (EIA).

The report says utility-scale solar generated 50 percent more electricity for ERCOT in the first nine months this year compared with the same period in 2024. Meanwhile, electricity generated by wind power rose 4 percent in the first nine months of this year versus the same period in 2024.

Together, wind and solar supplied 36 percent of ERCOT’s electricity in the first nine months of 2025.

Heavier reliance on wind and solar power comes amid greater demand for ERCOT electricity. In the first nine months of 2025, ERCOT recorded the fastest growth in electricity demand (5 percent) among U.S. power grids compared with the same period last year, according to the report.

“ERCOT’s electricity demand is forecast to grow faster than that of any other grid operator in the United States through at least 2026,” the report says.

EIA forecasts demand for ERCOT electricity will climb 14 percent in the first nine months of 2026 compared with the same period this year. This anticipated jump coincides with a number of large data centers and cryptocurrency mining facilities coming online next year.

The ERCOT grid covers about 90 percent of Texas’ electrical load.

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