TVA files for construction permit for Clinch River SMR

Tue, May 6, 2025, 2:29PMNuclear News

The U.S. Nuclear Regulatory Commission this week shared a portion of the construction permit application from the Tennessee Valley Authority to build a small modular reactor at the Clinch River nuclear site in Oak Ridge, Tenn.

In anticipation of TVA’s filing, NRC staff scheduled two public meetings in Oak Ridge for today, to discuss the agency’s process for licensing nuclear power plants.

Another building prepares to come down at Oak Ridge’s Y-12 complex

Wed, Apr 30, 2025, 2:30PMNuclear News
Workers with UCOR perform sampling and deactivation tasks in the basement of Beta-1 at the Y-12 National Security Complex at Oak Ridge. (Photo: DOE)

The Department of Energy’s Office of Environmental Management said that crews with the Oak Ridge Office of Environmental Management (OREM) and its cleanup contractor UCOR are preparing to demolish another deteriorating Manhattan Project–era building at the Y-12 National Security Complex at Oak Ridge, Tenn.

TVA to file for Clinch River SMR construction permit by June

Mon, Apr 21, 2025, 8:45PMNuclear News
Deacy (left) speaks with senior project manager Mike McDowell (center) and civil construction manager Buck Collins (right) outside the construction trailer at the Clinch River site in Tennessee. (Photo: TVA)

In a Q&A posted on TVA’s website last week about a “new nuclear heyday,” Bob Deacy shared his vision for the Clinch River nuclear site in Oak Ridge, Tenn.—and some news about next steps for the company’s small modular reactor plans.

The Tennessee Valley Authority’s senior vice president for the Clinch River project, Deacy described his vision for up to four SMRs built on plots smaller than a football field with state-of-the-art digital equipment and a newly trained workforce providing reliable 24/7 power to the grid.

Legacy waste removed from Oak Ridge after 50 years

Fri, Apr 18, 2025, 12:23PMNuclear News
OREM team members with the transport cask used to ship the legacy waste out of state for permanent disposal. (Photo: DOE)

Oak Ridge National Laboratory has successfully removed legacy radioactive waste stored for more than five decades, marking a significant cleanup milestone. The Oak Ridge Office of Environmental Management (OREM) and cleanup contractor UCOR processed and shipped highly radioactive source material, including radium-226 and boron, out of state for permanent disposal.

General Kenneth Nichols and the Manhattan Project

Wed, Apr 2, 2025, 8:01PMANS Nuclear Cafe

Nichols

The Oak Ridger has published the latest in a series of articles about General Kenneth D. Nichols, the Manhattan Project, and the 1954 Atomic Energy Act. The series has been produced by Nichols’ grandniece Barbara Rogers Scollin and Oak Ridge (Tenn.) city historian David Ray Smith. Gen. Nichols (1907–2000) was the district engineer for the Manhattan Engineer District during the Manhattan Project.

As Smith and Scollin explain, Nichols “had supervision of the research and development connected with, and the design, construction, and operation of, all plants required to produce plutonium-239 and uranium-235, including the construction of the towns of Oak Ridge, Tennessee, and Richland, Washington. The responsibility of his position was massive as he oversaw a workforce of both military and civilian personnel of approximately 125,000; his Oak Ridge office became the center of the wartime atomic energy’s activities.”

PG&E launches AI solution at Diablo Canyon

Thu, Nov 14, 2024, 9:13PMNuclear News

Diablo Canyon will host a commercial installation of the first on-site generative artificial intelligence deployment at a U.S. nuclear plant.

Pacific Gas & Electric is deploying Atomic Canyon’s Neutron Enterprise to assist the utility’s management of datasets associated with operations of Diablo Canyon. The software, which runs on Nvidia’s full-stack AI platform, enables intelligent document processing, computation of semantic embeddings, and generative capabilities. Its infrastructure allows nuclear facilities to process and analyze vast amounts of complex documentation with unprecedented speed and accuracy, according to the company.

Oak Ridge community roundtable explores workforce challenges

Thu, Nov 7, 2024, 6:00PMNuclear News
OREM manager Jay Mullis (center) discusses the demographics of the current Oak Ridge workforce and the skills needed in the years ahead to advance cleanup at ORNL and the Y-12 National Security Complex. (Photo: DOE)

Federal and contractor officials, community leaders, and educators gathered in Knoxville, Tenn., on October 29 for a roundtable event focused on ensuring the Oak Ridge Office of Environmental Management (OREM) and its partners have the resources and infrastructure needed to support a robust, talented workforce in the years ahead.

TerraPower reaches market-scale production of Ac-225

Fri, Oct 4, 2024, 2:30PMNuclear News

TerraPower Isotopes, a subsidiary of Bellevue, Wash.–based TerraPower, announced it is now producing actinium-225 at commercial scale, making the medical isotope available to the pharmaceutical industry through weekly production runs. As a result, TerraPower Isotopes said its actinium, after further manufacturing, is now used in multiple drug developers’ radiopharmaceuticals in human clinical trials across the globe.

Oak Ridge’s Mercury Treatment Facility receives new tanks

Wed, Sep 25, 2024, 2:29PMRadwaste Solutions
Workers prepare to remove from a specialized transportation trailer the first of three sludge-settling tanks for Oak Ridge’s Mercury Treatment Facility. (Photo: DOE)

Workers with the Oak Ridge Office of Environmental Management (OREM) and its contractor UCOR have finished installing the first of three large sludge-settling tanks for the Mercury Treatment Facility at the site’s Y-12 National Security Complex. The tanks, each of which will be 38 feet tall and 15 feet wide with a capacity of 36,000 gallons, provide a visible sign of ongoing progress on the facility where much of the construction has so far been below ground.

Oak Ridge is Orano’s preferred site for enrichment, with no commitments yet

Thu, Sep 5, 2024, 2:30PMNuclear News
Tennessee officials and lawmakers joined Orano representatives to announce Orano’s selection of Oak Ridge as its preferred site for a uranium enrichment facility. (Photo: tn.gov)

On September 4, Tennessee Gov. Bill Lee announced that Orano had selected Oak Ridge as its preferred site to build a “multibillion-dollar” uranium centrifuge enrichment facility. For Tennessee, the announcement underscores Oak Ridge’s draw for nuclear technology companies. For Orano and the nuclear power community, the announcement is another sign the nation is edging closer to adding front-end nuclear fuel cycle capacity.

K-25 viewing platform takes shape at Oak Ridge

Wed, Aug 21, 2024, 8:02PMRadwaste Solutions
Construction crews work to erect the platform’s structural framework. (Photo: DOE)

Crews are making significant progress on the construction of the K-25 viewing platform at the Oak Ridge Reservation in Tennessee, the Department of Energy’s Office of Environmental Management announced on August 20. When completed next year, the elevated platform will offer a sweeping panoramic view of the massive 44-acre footprint of the K-25 Building, which once produced enriched uranium used in the weaponry that ended World War II.

WM2025 to focus on impact of advanced technology on waste management

Fri, Aug 16, 2024, 5:02PMRadwaste Solutions
The OECD Nuclear Energy Agency’s William Magwood addresses the plenary audience of the 2024 Waste Management Conference in Phoenix. (Photo: WM Symposia)

Waste Management Symposia announced that the theme of next year’s Waste Management Conference (WM2025) will be “Empowering A Sustainable Future—Advanced Technologies, AI, and Workforce Development across the Nuclear Landscape.” To be held in Phoenix, Ariz., March 9–13, the conference will showcase how new technologies and the evolving digital world are transforming the global nuclear landscape, supply chains, infrastructure, and work norms.

Construction begins on Kairos’s fluoride salt–cooled test reactor

Tue, Jul 30, 2024, 8:00PMNuclear News
Workers begin construction at the Hermes site in Oak Ridge, Tenn. (Photo: Kairos Power)

Earlier today, on a site in Oak Ridge, Tenn., that was formerly home to the K-33 Gaseous Diffusion Plant, Kairos Power marked the start of construction on its low-power demonstration reactor. Named Hermes, the 35-MWt test reactor claims status as the first Gen IV reactor to be approved for construction by the Nuclear Regulatory Commission and the first non–light water reactor to be permitted in the United States in more than 50 years.

Proof of concept: The Molten Salt Reactor Experiment in Nuclear News

Thu, May 9, 2024, 8:00PMNuclear News
The December 1960 issue of NN, which announced plans to build the MSRE, paired with a still image from a 1969 video on the MSRE produced by ORNL.

By late 1960, when the U.S. Atomic Energy Commission authorized plans to build a Molten Salt Reactor Experiment (MSRE) at Oak Ridge National Laboratory, the lab already had about 13 years of experimentation with molten salt reactors under its longest-serving lab director, Alvin Weinberg. The MSRE operated from 1965 to 1969, proving that molten salt reactors could operate reliably, and with alternatives to uranium-235 too.

DOE-EM finishes cleanup of legacy Oak Ridge reactor lab site

Fri, May 3, 2024, 6:25PMRadwaste Solutions
UCOR employees use a crane to load the Low Intensity Test Reactor vessel for transport to its final disposition location in Clive, Utah. (Photo: DOE)

The Department of Energy’s Office of Environmental Management announced that the 30-foot-long, 37,600-pound reactor vessel from Oak Ridge National Laboratory’s Low Intensity Test Reactor was shipped to EnergySolutions’ low-level radioactive waste facility in Clive, Utah, in late April.

Labor pact to boost pay, benefits to Oak Ridge cleanup workers

Mon, Apr 1, 2024, 2:30PMRadwaste Solutions
From left, Erik Olds, OREM deputy manager; Jay Mullis, OREM manager; Brandon Bishop, NABTU secretary-treasurer; Sean McGarvey, NABTU president; Ken Rueter, UCOR president and CEO; William “Ike” White, DOE-EM senior advisor; and Jeff Avery, DOE-EM principal deputy assistant secretary.

The Department of Energy’s Office of Environmental Management announced the signing of a project labor agreement (PLA) between Oak Ridge Office of Environmental Management (OREM) contractor UCOR and North America’s Building Trades Unions (NABTU). The agreement, which allows for flexibility in wage increases and other incentives, is expected to help recruit and retain skilled construction trade workers at the DOE site in Tennessee.

X-energy’s helium coolant and fuel handling test facility gets EA/FONSI

Mon, Mar 11, 2024, 5:00PMNuclear News
Concept art of the planned X-energy helium test facility. (Image: DOE OCED)

The Department of Energy’s Office of Clean Energy Demonstrations issued a final environmental assessment (EA) and finding of no significant impact in February for a cost-shared X-energy project to construct and operate a helium test facility (HTF) in Oak Ridge, Tenn. According to the EA, construction would begin in early 2024 and take X-energy and its contracted partner, Kinectrics, about one year to complete. the facility would then operate for six years, with the possibility of extensions for up to an additional 20 years, to test equipment for a demonstration of X-energy’s high-temperature, gas-cooled reactor technology and also to “serve the reactor community at large as the technology continues to develop and is adopted around the world.”

DOE sets 2024 cleanup goals for Oak Ridge

Wed, Jan 10, 2024, 9:59PMRadwaste Solutions
Oak Ridge crews will begin demolition of the 325,000-sqaure-foot Alpha-2 facility this year, marking the first teardown of a former uranium enrichment facility at Y-12. (Photo: DOE)

The Department of Energy announced that its Oak Ridge Office of Environmental Management (OREM) is moving ahead with a slate of projects this year that will alter the Tennessee site’s skyline, remove inventories of nuclear waste, and complete a major phase of cleanup.