A digital twin of Purdue’s reactor appears on monitors in Stylianos Chatzidakis’s lab. Chatzidakis observes PhD student Zach Dahm, seated, as he toggles through different views. (Purdue University photo/John Underwood)
A research reactor built in 1962 that was converted to digital control and operation in 2019 is aiding the development of advanced nuclear reactors, such as small modular reactors and microreactors. An article published by Purdue University describes how Purdue University Reactor Number One (PUR-1), currently the only facility to be licensed for a fully digital safety and control system by the Nuclear Regulatory Commission, is being used to perform “first-of-a-kind experiments that are unique to the nuclear sector.”
A view of the DOME microreactor testbed, which is managed by the National Reactor Innovation Center. (Image: NRIC)
The National Reactor Innovation Center is accepting applications from developers ready to take a fueled microreactor to criticality inside the former Experimental Breeder Reactor-II containment building at Idaho National Laboratory, now repurposed as DOME—a microreactor test bed. According to a Department of Energy announcement, DOME will be ready to receive the first experimental reactor in the fall of 2026, with testing likely to begin in 2027.
Simulator instructor Marc Widener at the controls of a new crane simulator for the Savannah River Site’s Defense Waste Processing Facility.
The Department of Energy’s Office of Environmental Management said it will use a new simulator to help train operators on the safe and efficient movement of a remotely operated crane at the Defense Waste Processing Facility (DWPF) at the Savannah River Site in South Carolina. The DWPF, where Savannah River’s liquid high-level radioactive waste is vitrified and placed into storage containers, uses an unmanned bridge crane system to install and replace equipment in the high-humidity, high-radiation, and harsh chemical environment of the facility’s processing cells.
A rendering of the Clinch River SMR. (Image: TVA)
The Tennessee Valley Authority announced yesterday that it has submitted a construction permit application to the Nuclear Regulatory Commission for the construction of a GE Vernova Hitachi Nuclear Energy BWRX-300 small modular reactor at the Clinch River nuclear site in Oak Ridge, Tenn.
Urenco staff at the facility in Eunice, N.M. (Photo: Urenco)
Urenco USA has initiated production of enriched uranium in its newest gas centrifuge enrichment cascade—the first in a planned expansion of its Eunice, N.M., facility announced in July 2023. When the expansion is complete, early in 2027, the site will have increased its capacity by about 15 percent, adding about 700,000 separative work units (SWU) per year, the company said May 19.
Participants listen to a speaker at the IAEA SMR School in Nairobi, Kenya. (Photo: IAEA)
An initiative to educate government, regulatory, and industry representatives around the world about small modular reactors has been launched by the International Atomic Energy Agency, with the first such “SMR School” workshop, which was hosted by the government of Kenya in the capital city of Nairobi from on May 5–9.
The unfinished reactor containment building at Unit 2 of the V.C. Summer nuclear power plant in September 2024. (Photo: South Carolina's Nuclear Advisory Council)
Santee Cooper is satisfied with the response generated by its initial request for proposals to buy what remains of the Summer-2 and -3 nuclear power plant project in South Carolina. The RFP was issued in January and the application window closed May 5.
The NS Savannah in 1962. (Photo: DOE)
In commemoration of National Maritime Day, there will be an open house on the NS Savannah this Sunday, May 18, in Baltimore, Md. The world’s first nuclear-powered merchant ship, Savannah was built through a joint program between the Atomic Energy Commission and the Maritime Administration (MARAD) as part of President Eisenhower’s Atoms for Peace program.
Learn more: For more details on Sunday’s tour of the Savannah, click here.
Summer progress; Waterford news; safety report of Northeast plants
Unit 1 of the VC Summer nuclear power plant. (Photo: DJ Slaw)
Here’s a look at some recent announcements from the Nuclear Regulatory Commission.
Summer SLR: The NRC this month published its final environmental impact statement for Summer Unit 1’s subsequent license renewal application. Dubbed a supplemental EIS, the report is an important step in determining if Dominion Energy can continue operating its 966-MWe Westinghouse pressurized water reactor unit for an additional 20 years beyond August 6, 2042, the current end of its license.