the view from heti

New initiative to drive efforts to deploy first advanced small modular nuclear reactor

The International Energy Agency has determined that nuclear energy production would need to increase 80 percent globally by 2040 to stay on track with sustainability targets, including international climate goals. Photo via houston.org

A new initiative from X-energy, bolstered by Dow, is powering low-carbon emissions energy. X-energy, LLC is a nuclear reactor and fuel design engineering company. The company was selected by the U.S. Department of Energy in 2020 to receive up to $1.2 billion under the Advanced Reactor Demonstration Program Cooperative Agreement in federal cost-shared funding to develop, license, build, and demonstrate an operational advanced reactor and fuel fabrication facility within a 10-year span.

In 2022, X-energy announced a $50 million joint development agreement with multinational chemical giant Dow to demonstrate the first-grid advanced nuclear reactor at an industrial site. As part of the agreement, Dow is now a sub-awardee under X-energy’s ARDP with the DOE. At the time of the announcement, Dow also brought to light its intention to take a minority equity stake in X-energy.

Last month, the University of Texas at Austin Cockrell School of Engineering hosted a panel discussion with Governor Abbott, he noted “Texas is the energy capital of the world” Abbott said, “When you look at the fact that Texas is the fastest-growing state with regard to population and businesses, you know that our demand for power is only going to increase.” Abbott also said, “We’re going to be studying and evaluating the reliability, the safety of nuclear power. If it passes all the tests, we will be looking to dramatically expand nuclear power in the state of Texas for the primary purpose of providing reliable, dispatchable power to our grid.”

The International Energy Agency has determined that nuclear energy production would need to increase 80 percent globally by 2040 to stay on track with sustainability targets, including international climate goals.

Dow and X-energy are slated to install an Xe-100 high-temperature, gas-cooled reactor plant at one of Dow’s sites in Seadrift, between Corpus Christi and Houston, which produces more than 4 million pounds each year of materials used in packaging, footwear, wire and cable insulation and solar cell membranes. It also is expected to reduce the plant’s emissions by 440,000 metric tons of carbon dioxide equivalent annually, as steps by Michigan-based Dow toward achieving goals of carbon neutrality by 2050 and reducing carbon emissions by 30 percent by 2030.

Jim Fitterling, Dow chairman and CEO, noted in a press release issued in early March, “The utilization of X-energy’s fourth generation nuclear technology will enable Dow to take a major step in reducing our carbon emissions while delivering lower carbon footprint products to our customers and society,” he said. “The collaboration with X-energy and the DOE will serve as a leading example of how the industrial sector can safely, effectively and affordably decarbonize.”

X-energy will install four of its Xe-100 reactors at the coastal site with each unit designed to produce 80 megawatts of energy fueled by the company’s baseball-sized uranium fuel kernels, encased in layers of pyrolytic carbon, silicon carbide and porous carbon. The reactors will partly be constructed by Fort Worth-based Paragon Energy Solutions, LLC, a supply chain management company that focuses its efforts on tackling the nuclear industry’s most difficult challenges. The Xe-100 modular reactor is one of two designs selected by the DOE to receive $80 million each of initial cost-shared funding to build an advanced reactor demonstration plant that can be operational within seven years.

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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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A View From HETI

The funding will support the construction of the Hertha Chalyx plant. Photo courtesy Hertha Metals

Conroe-based Hertha Metals has closed a $133.65 million Series A round that includes a $65 million equity investment from the Pentagon. The startup uses a one-step process to convert iron into molten steel or high-purity iron.

Khosla Ventures and Doerr Capital co-led the round, with participation from CEV, Pear Ventures, Gates Frontier, Niterra SUISO no MORI Fund, Toyota Ventures, and Siemens Financial Services.

The federal investment came from the U.S. Department of Defense’s Industrial Base Analysis and Sustainment program. The program aims to strengthen and modernize the U.S. Defense Industrial Base, a network that researches, designs, builds, and maintains military weapons, equipment, technology, and services.

The Series A funding will finance construction of Hertha Chalyx, a plant that will be capable of producing 10,000 metric tons of steel-grade and magnet-grade high-purity iron.

Hertha says Chalyx will provide U.S.-made material for manufacturers of rare-earth magnets. Today, China controls more than 90 percent of the global manufacturing of rare-earth magnets.

Rare-earth magnets can be found in fighter jets, smart bombs, submarines, satellites, drones and other military hardware. These magnets are also key components in electric vehicle motors, wind turbines, computer hard drives, smartphones, headphones, cordless tools and an array of other products.

“Every electric vehicle, aerospace platform, radar system, and data center depends on domestic iron and magnet feedstock suppliers,” Laureen Meroueh, founder and CEO of Hertha, said in a press release.

“Hertha Chalyx closes that gap,” she added. “We are building the supply chain this country needs, and we are doing it by providing a domestic cost-competitive option for manufacturers while unlocking safer and cleaner production.”

Hertha says Chalyx, alongside its Pi100 pilot project, will be the first modern-day “iron and steel innovation complex.” The startup expects to break ground on Chalyx this year.

Since its founding in 2022, Hertha has raised more than $150 million from investors.

This spring, Hertha led the manufacturing category on Fast Company’s list of the World’s Most Innovative Companies of 2026.

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