The project would nearly eliminate the emissions associated with power and steam generation at the Dow plant in Seadrift, Texas. Getty Images

Dow, a major producer of chemicals and plastics, wants to use next-generation nuclear reactors for clean power and steam at a Texas manufacturing complex instead of natural gas.

Dow's subsidiary, Long Mott Energy, applied Monday to the U.S. Nuclear Regulatory Commission for a construction permit. It said the project with X-energy, an advanced nuclear reactor and fuel company, would nearly eliminate the emissions associated with power and steam generation at its plant in Seadrift, Texas, avoiding roughly 500,000 metric tons of planet-warming greenhouse gas emissions annually.

If built and operated as planned, it would be the first U.S. commercial advanced nuclear power plant for an industrial site, according to the NRC.

For many, nuclear power is emerging as an answer to meet a soaring demand for electricity nationwide, driven by the expansion of data centers and artificial intelligence, manufacturing and electrification, and to stave off the worst effects of a warming planet. However, there are safety and security concerns, the Union of Concerned Scientists cautions. The question of how to store hazardous nuclear waste in the U.S. is unresolved, too.

Dow wants four of X-energy's advanced small modular reactors, the Xe-100. Combined, those could supply up to 320 megawatts of electricity or 800 megawatts of thermal power. X-energy CEO J. Clay Sell said the project would demonstrate how new nuclear technology can meet the massive growth in electricity demand.

The Seadrift manufacturing complex, at about 4,700 acres, has eight production plants owned by Dow and one owned by Braskem. There, Dow makes plastics for a variety of uses including food and beverage packaging and wire and cable insulation, as well as glycols for antifreeze, polyester fabrics and bottles, and oxide derivatives for health and beauty products.

Edward Stones, the business vice president of energy and climate at Dow, said submitting the permit application is an important next step in expanding access to safe, clean, reliable, cost-competitive nuclear energy in the United States. The project is supported by the Department of Energy’s Advanced Reactor Demonstration Program.

The NRC expects the review to take three years or less. If a permit is issued, construction could begin at the end of this decade, so the reactors would be ready early in the 2030s, as the natural gas-fired equipment is retired.

A total of four applicants have asked the NRC for construction permits for advanced nuclear reactors. The NRC issued a permit to Abilene Christian University for a research reactor and to Kairos Power for one reactor and two reactor test versions of that company's design. It's reviewing an application by Bill Gates and his energy company, TerraPower, to build an advanced reactor in Wyoming.

X-energy is also collaborating with Amazon to bring more than 5 gigawatts of new nuclear power projects online across the United States by 2039, beginning in Washington state. Amazon and other tech giants have committed to using renewable energy to meet the surging demand from data centers and artificial intelligence and address climate change.

Republicans and Democrats, environmental groups and the oil and gas industry all oppose the temporary sites. Photo via uh.edu

Supreme Court confronts what to do with growing pile of nuclear waste

The Debate Continues

The Supreme Court will hear arguments Wednesday in a fight over plans to store nuclear waste at sites in rural Texas and New Mexico.President Joe Biden's administration and a private company with a license for the Texas facility appealed a ruling by the 5th U.S. Circuit Court of Appeals that found that the Nuclear Regulatory Commission exceeded its authority in granting the license. The outcome of the case will affect plans for a similar facility in New Mexico roughly 40 miles away.

On this issue, President Donald Trump's administration is sticking with the views of its predecessor, even with Texas Gov. Greg Abbott, a Republican ally of Trump, on the other side.

The push for temporary storage sites is part of the complicated politics of the nation’s so far futile quest for a permanent underground storage facility.

Here's what to know about the case.

Where is spent nuclear fuel stored now?

Roughly 100,000 tons of spent fuel, some of it dating from the 1980s, is piling up at current and former nuclear plant sites nationwide and growing by more than 2,000 tons a year. The waste was meant to be kept there temporarily before being deposited deep underground.

A plan to build a national storage facility northwest of Las Vegas at Yucca Mountain has been mothballed because of staunch opposition from most Nevada residents and officials.

The Nuclear Regulatory Commission has said that the temporary storage sites are needed because existing nuclear plants are running out of room. The presence of the spent fuel also complicates plans to decommission some plants, the Justice Department said in court papers.

Where would it go?

The NRC granted the Texas license to Interim Storage Partners LLC for a facility that could take up to 5,000 metric tons of spent nuclear fuel rods from power plants and 231 million tons of other radioactive waste. The facility would be built next to an existing dump site in Andrews County for low-level waste, such as protective clothing and other material that has been exposed to radioactivity. The Andrews County site is about 350 miles west of Dallas, near the Texas-New Mexico state line.

The New Mexico facility would be in Lea County, in the southeastern part of the state near Carlsbad. The NRC gave a license for the site to Holtec International.

The licenses would allow for 40 years of storage, although opponents contend the facilities would be open indefinitely because of the impasse over permanent storage.

Political opposition is bipartisan

Republicans and Democrats, environmental groups and the oil and gas industry all oppose the temporary sites.

Abbott is leading Texas' opposition to the storage facility. New Mexico Democratic Gov. Michelle Lujan Grisham also is opposed to the facility planned for her state.

A brief led by Republican Texas Sen. Ted Cruz on behalf of several lawmakers calls the nuclear waste contemplated for the two facilities an “enticing target for terrorists” and argues it's too risky to build the facility atop the Permian Basin, the giant oil and natural gas region that straddles Texas and New Mexico.

Elected leaders of communities on the routes the spent fuel likely would take to New Mexico and Texas also are opposed.

What are the issues before the court?

The justices will consider whether, as the NRC argues, the states forfeited their right to object to the licensing decisions because they declined to join in the commission’s proceedings.

Two other federal appeals courts, in Denver and Washington, that weighed the same issue ruled for the agency. Only the 5th Circuit allowed the cases to proceed.

The second issue is whether federal law allows the commission to license temporary storage sites. Opponents are relying on a 2022 Supreme Court decision that held that Congress must act with specificity when it wants to give an agency the authority to regulate on an issue of major national significance. In ruling for Texas, the 5th Circuit agreed that what to do with the nation’s nuclear waste is the sort of “major question” that Congress must speak to directly.

But the Justice Department has argued that the commission has long-standing authority to deal with nuclear waste reaching back to the 1954 Atomic Energy Act.

Ten-year-old radioactive waste is currently being debated about by New Mexico officials. Photo via Getty Images

Texas, New Mexico officials contemplate what to do with nuclear waste

in debate

Federal officials gathered Tuesday in southern New Mexico to mark the 25th anniversary of the nation’s only underground repository for radioactive waste resulting from decades of nuclear research and bomb making.

Carved out of an ancient salt formation about half a mile (800 meters) deep, the Waste Isolation Pilot Plant outside Carlsbad has taken in around 13,850 shipments from more than a dozen national laboratories and other sites since 1999.

The anniversary comes as New Mexico raises concerns about the federal government’s plans for repackaging and shipping to WIPP a collection of drums filled with the same kind of materials that prompted a radiation release at the repository in 2014.

That mishap contaminated parts of the underground facility and forced an expensive, nearly three-year closure. It also delayed the federal government’s multibillion-dollar cleanup program and prompted policy changes at labs and other sites across the U.S.

Meanwhile, dozens of boxes containing drums of nuclear waste that were packed at the Los Alamos National Laboratory to be stored at WIPP were rerouted to Texas, where they've remained ever since at an above-ground holding site.

After years of pressure from Texas environmental regulators, the U.S. Department of Energy announced last year that it would begin looking at ways to treat the waste so it could be safely transported and disposed of at WIPP.

But the New Mexico Environment Department is demanding more safety information, raising numerous concerns in letters to federal officials and the contractor that operates the New Mexico repository.

“Parking it in the desert of West Texas for 10 years and shipping it back does not constitute treatment,” New Mexico Environment Secretary James Kenney told The Associated Press in an interview. “So that’s my most substantive issue — that time does not treat hazardous waste. Treatment treats hazardous waste.”

The 2014 radiation release was caused by improper packaging of waste at Los Alamos. Investigators determined that a runaway chemical reaction inside one drum resulted from the mixing of nitrate salts with organic kitty litter that was meant to keep the interior of the drum dry.

Kenney said there was an understanding following the breach that drums containing the same materials had the potential to react. He questioned how that risk could have changed since the character and composition of the waste remains the same.

Scientists at Sandia National Laboratories in Albuquerque were contracted by the DOE to study the issue. They published a report in November stating that the federal government's plan to repackage the waste with an insulating layer of air-filled glass micro-bubbles would offer “additional thermal protection."

The study also noted that ongoing monitoring suggests that the temperature of the drums is decreasing, indicating that the waste is becoming more stable.

DOE officials did not immediately answer questions about whether other methods were considered for changing the composition of the waste, or what guarantees the agency might offer for ensuring another thermal reaction doesn't happen inside one of the drums.

The timetable for moving the waste also wasn't immediately clear, as the plan would need approval from state and federal regulators.

Kenney said some of the state's concerns could have been addressed had the federal government consulted with New Mexico regulators before announcing its plans. The state in its letters pointed to requirements under the repository's permit and federal laws for handling radioactive and hazardous wastes.

Don Hancock, with the Albuquerque-based watchdog group Southwest Research and Information Center, said shipments of the untreated waste also might not comply with the Nuclear Regulatory Commission's certification for the containers that are used.

“This is a classic case of waste arriving somewhere and then being stranded — 10 years in the case of this waste,” Hancock said. “That’s a lesson for Texas, New Mexico, and any other state to be sure that waste is safe to ship before it’s allowed to be shipped.”

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Houston Energy and Climate Startup Week announces 2025 dates, key events

comeback tour

Six local organizations focused on the energy transition have teamed up to bring back Houston Energy and Climate Startup Week.

The second annual event will take place Sept. 15-19, according to an announcement. The Ion District will host many of the week's events.

Houston Energy and Climate Startup Week was founded in 2024 by Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Houston Energy Transition Initiative (HETI), Digital Wildcatters and Activate.

“Houston Energy and Climate Startup Week was created to answer a fundamental question: Can we achieve more by working together than we can alone?” Jane Stricker, senior vice president at the Greater Houston Partnership and executive director of HETI, said in the release.

So far, events for the 2025 Houston Energy and Climate Startup Week include an introduction to climatetech accelerator Activate's latest cohort, the Rice Alliance Energy Tech Venture Forum, a showcase from Greentown Labs' ACCEL cohort, and Halliburton Labs Pitch Day.

Houston organizations New Climate Ventures and Digital Wildcatters, along with Global Corporate Venturing, are slated to offer programming again in 2025. And new partners, Avatar Innovations and Decarbonization Partners, are slated to introduce events. Find a full schedule here.

Other organizations can begin entering calendar submissions starting in May, according to the release.

Last year, Houston Energy and Climate Startup Week welcomed more than 2,000 attendees, investors and industry leaders to more than 30 events. It featured more than 100 speakers and showcased more than 125 startups.

"In 2024, we set out to build something with lasting impact—rooted in the ingenuity of Houston’s technologists and founders. Thanks to a collaborative effort across industry, academia, and startups, we’ve only just begun to showcase Houston’s strengths and invite others to be part of this movement," Stricker added in the release. "We can’t wait to see the city rise to the occasion again in 2025.”

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.

Here are 10+ must-attend Houston energy transition events for Q2 2025

On the Agenda

Editor's note: Spring is here, and this quarter is packed with must-attend events for those in the energy transition sector. Houston plays host to myriad summits, conferences, and expos that you won't want to miss. Mark your calendars and begin registering today. Please note: this article may be updated to include additional events.

March 31-April 2 — World Hydrogen North America 2025

Seize the opportunity to connect with industry leaders from across the hydrogen value chain, fostering long-term business partnerships and exploring potential collaborations. Engage with prominent off-takers, both nationally and internationally, and gain first-hand insights into the latest projects shaping the future of hydrogen in the USA and Canada.

This event begins March 31 at the Marriott Marquis. Click here to register.

April 1-2 — 8th Annual LNG Summit USA

The LNG Summit USA brings together leaders in the LNG sector, who in turn bring solutions to glaring industry challenges. The event addresses key challenges and opportunities within the LNG industry and the broader energy landscape. The conference will also provide insights into alternative energy options that could potentially replace or complement LNG.

This event begins April 1. Click here to register.

April 17 — 2025 UH Energy Symposium Series on Plastics Circularity

Celebrating its 12th year, the UH Energy Symposium Series tackles critical issues impacting the energy sector. This year’s focus on plastics circularity will bring together industry leaders, researchers, and visionaries to explore the intersection of plastics, sustainability, and energy.

This event begins at 8 am on April 17 at UH Student Center South. Click here to register.

April 28-30 — PPDM Energy Data Convention Houston 2025

This flagship conference is dedicated to exploring the latest advancements and trends in energy data, offering opportunities for networking, knowledge exchange, and collaboration. Gain insights into cutting-edge data management practices and how they can enhance operational efficiency, support strategic decision-making, and contribute to achieving long-term objectives. Highlights include keynote presentations from renowned experts, interactive panel discussions, hands-on workshops, and an exhibitor showcase.

This event begins April 28 at Norris Conference Center. Click here to register.

May 12-15 — Enverus Evolve Conference

Staying ahead of the curve in the energy sector is critical. This conference is designed to equip energy leaders with foresight in the energy market, providing cutting-edge technological know-how, sessions and networking opportunities industry leaders, and offering practical guidance on how to apply technology to solve big problems.

This event begins May 12 at Hilton Americas Houston. Click here to register.

May 27-28 — 6th American LNG Forum

Join LNG industry professionals, innovators, and policymakers to discover groundbreaking technologies that are driving the future of liquified natural gas. Topics will include market dynamics and decarbonization strategies, offering attendees the chance to connect, learn, and become part of the LNG revolution.

This event begins May 27 at the Westin Galleria Houston. Click here to register.

May 28-30 — CHARGE North America

This intimate, immersive experience is tailored to forward-thinking energy professionals. The conference includes hands-on interactive workshops led by top strategists; real-world case studies; and insights from leading speakers on resilient branding, consumer expectations, and climate action. Attendees will engage in panel discussions on sustainability and energy diversification and enjoy exclusive networking opportunities with global executives and innovators.

This event begins May 28 at The Ion. Click here to register.

May 29-30 — 5th Annual American Hydrogen Forum

Connect with hydrogen industry leaders, innovators, and policymakers at the American Hydrogen Forum. Discover groundbreaking technologies and strategies focusing on hydrogen fuel cell technology, hydrogen energy, and low-carbon hydrogen solutions.

This event begins May 29 at the Westin Galleria Houston. Click here to register.

June 4-5 — 2025 AWS Energy Symposium

The fourth annual AWS Energy Symposium is the premier AWS event for the energy industry. Hear from leading energy and utility customers, partners, and startups about how they're using AWS to scale innovation and transform their organizations. The event is invitation only and is geared toward senior leaders and director-level executives from across the energy value chain. Click here to submit a registration request.

June 11-12 — Energy Projects Conference & Expo

The Energy Projects Conference & Expo (EPC Show) is the largest event in North America for professionals working at the heart of major energy projects. The show will bring together five leading conferences under one roof for the first time, uniting 3,000-plus engineering, construction, commissioning, supply chain, operations, and maintenance professionals. Conference subjects span LNG exporting, hydrogen and ammonia, midstream, petrochem and refining, and sustainable aviation fuels.

This event begins June 11 at the George R Brown Convention Center. Click here to register.

June 25-26 — Carbon Capture Technology Expo

Tackling climate change is one of the biggest global challenges that requires immediate action, and many industrial sectors are now looking to new technology to help meet net-zero emission targets. The Carbon Capture Technology Expo is North America's leading event for carbon capture, utilization, and storage. The expo offers opportunities to network with industry frontrunners and best-in-class solution providers.

This event begins June 25 at NRG Center. Click here to register. It is co-located with the Hydrogen Technology Conference & Expo North America. Expo passes are free.