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.

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.

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.”

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.

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 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.

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.

Kairos Power accomplished another step forward for its Hermes 2 reactor plans as the Nuclear Regulatory Commission this week published its final environmental assessment and finding of no significant impact.

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.

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.

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.

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.

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.

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.

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.

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.”

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.

The Department of Energy, in its 2023 Year in Review released on December 20, noted that its cleanup program in 2023 had successes in treating liquid tank waste, carrying out deactivation and decommissioning, remediating groundwater and soil contamination, and reducing risk at its various sites across the nation.

William “Ike” White, senior advisor in the DOE's Office of Environmental Management, said that the office “realized numerous accomplishments in 2023 that not only reduce risks but help position cleanup sites for the next phase of progress. In addition, our workforce’s efforts over the past year led to a cleaner environment while also boosting DOE’s national security missions, supporting scientific innovation, and enabling a better future.”

The Department of Energy’s Office of Environmental Management said a new regulatory partnership framework established in recent years by the Oak Ridge Office of Environmental Management (OREM), its contractor United Cleanup Oak Ridge (UCOR), the Environmental Protection Agency, and the Tennessee Department of Environment and Conservation (TDEC) is ushering in a new chapter of accelerated cleanup at the department’s Oak Ridge Reservation in Tennessee.

The Department of Energy’s Office of Environmental Management announced it has completed a second of its 2023 priorities at Oak Ridge in as many months with the demolition of the Low Intensity Test Reactor, known as Building 3005, at the Tennessee site.

Watch a video of Building 3005 and its decommissioning here.