The cooling pipes that snake along the surface of the vacuum vessel thermal shield will be removed and replaced. Here, on a right-hand outboard panel, workers determine the impact of pipe removal on the surface of the component. (Photo: ITER Organization)
ITER’s machine assembly phase began about two and a half years ago. Now, staff are reversing some of that assembly work to make needed repairs. According to a news article published by the ITER Organization on January 9, ITER is “facing challenges common to every industrial venture involving first-of-a-kind components.” Over one year after problems were first detected and less than two months after they were made public in late November, tests and analysis are producing a clearer picture of necessary repairs to the tokamak’s thermal shield panels and vacuum vessel sectors.
“There is no scandal here,” said ITER director general Pietro Barabaschi. “Such things happen. I've seen many issues of the kind, and much worse.”
A rendering of Holtec’s SMR-160 plant. (Image: Holtec International)
Small modular reactor developers Holtec International and GE Hitachi Nuclear Energy (GEH) are both looking to the United Kingdom as a prime location for deployment of their units—the SMR-160 and BWRX-300, respectively.
On December 19, Holtec Britain announced that it is poised to enter the United Kingdom’s generic design assessment (GDA) process for the SMR-160 early in 2023, enabling the start of construction of the first U.K. unit as soon as 2028. (The GDA, developed by the Office for Nuclear Regulation and the Environment Agency, gauges the safety, security, and environmental protection aspects of a nuclear plant design. Successfully completing the assessment culminates in a design acceptance confirmation from ONR and a statement of design acceptability from the Environment Agency.)
The Palisades nuclear power plant. (Photo: Entergy)
Holtec International is apparently not ready to give up on the Palisades nuclear power plant just yet. Despite having been denied federal funds last month for a possible reopening of the Covert, Mich., facility, the company this week announced its intention to reapply.
Artist’s rendering of the proposed TRISO-X World Headquarters and Commercial Fuel Facility at the Horizon Center Industrial Park in Oak Ridge, Tenn. (Image: X-energy)
The Nuclear Regulatory Commission has accepted an application from X-energy's fuel subsidiary, TRISO-X LLC, for a proposed TRISO-X Fuel Fabrication Facility (TF3) in Oak Ridge, Tenn., X-energy announced last week. A 30-month review schedule has been developed by the NRC that would be completed by June 2025, assuming TRISO-X provides sufficient responses to expected requests for additional information (RAIs) within 30 to 60 days of their issuance. On December 16, the NRC announced that it would seek public input on the scope of its environmental review and environmental impact statement for the application and published a notice in the Federal Register.
A color-enhanced image of the inside of a NIF preamplifier support structure. (Image: LLNL/Damien Jemison)
On December 5, researchers at the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory achieved fusion energy breakeven. It was a gain for stockpile stewardship that also—as headlines gushed prior to the Department of Energy’s December 13 announcement—boosted the prospects of inertial fusion energy (IFE). The timing of the landmark achievement may have been especially welcome to private fusion companies with inertial or hybrid magneto-inertial confinement concepts, because it occurred as the DOE was getting ready to consider applications for $50 million in funding for fusion pilot plant design work.