The Hunterston B nuclear power station in 2018. (Photo: Thomas Nugent/CC BY-SA 2.0)
Unit B1 at Scotland’s two-unit Hunterston B nuclear power plant was taken off line for good on November 26 after nearly 46 years of operation. A 490-MWe advanced gas-cooled reactor, the unit entered commercial operation in June 1976. Its companion AGR, Unit B2, which entered operation in March 1977, is scheduled for retirement in January.
Artist’s rendering of a BWRX-300 plant. (Photo: GE Hitachi Nuclear Energy)
Ontario Power Generation (OPG) has selected GE Hitachi Nuclear Energy (GEH) as its technology partner for the Darlington nuclear new-build project. The companies will work to deploy GEH’s BWRX-300 small modular reactor at OPG’s Darlington nuclear plant, located in Clarington, Ontario.
Jamie Weaver with the neutron depth profiling instrument. (Photo: T. Barvitskie/NIST)
The newest generation of lithium-ion batteries now being developed uses thin-film, solid-state technology and could soon safely power cell phones, electric vehicles, laptops, and other devices. However, like all batteries, solid-state lithium-ion batteries have a drawback: Impedance—electrical resistance—can build up as batteries are discharged and recharged, limiting the flow of electric current.
The USS Enterprise was officially decommissioned in February 2017.
The USS Enterprise (CVN-65), the world's first nuclear-powered aircraft carrier, has been named an ANS Nuclear Historic Landmark. The designation was officially recognized on December 1 during the ANS Winter Meeting in Washington, D.C.
The inscription on the plaque presented by ANS reads, “In recognition of the most advanced nuclear engineering technology of the 1950s and for her 51 years of service to our nation, the USS Enterprise (CVN-65) is designated as an ANS Nuclear Historic Landmark.”
Spent fuel in dry cask storage at the closed Kewaunee nuclear power plant. (Photo: NAC International)
The Department of Energy has restarted its consent-based siting process for identifying sites to store the nation’s spent nuclear fuel. Yesterday, the DOE issued a request for information that “will be used to further develop DOE’s consent-based siting process and overall waste management strategy in an equitable way.”
Artist's rendition of the Versatile Test Reactor. (Source: DOE)
Electrician Ralph Bisla conducts tests of the finishing line inside Hanford’s WTP Low-Activity Waste Facility. (Photo: DOE)
Having completed all startup testing of components and systems, the Waste Treatment and Immobilization Plant (WTP) at the Hanford Site near Richland, Wash., has moved to the commissioning phase, the Department of Energy’s Office of Environmental Management (EM) announced last week. During the commissioning phase, the final steps will be taken to prepare for the vitrification of radioactive and chemical waste as part of Hanford’s Direct-Feed Low-Activity Waste (DFLAW) program.
The Vogtle-3 turbine building (left) and containment (right) in October. (Photo: Georgia Power)
The Nuclear Regulatory Commission will increase its oversight of Vogtle-3—one of the two Westinghouse AP1000 reactors under construction at the Vogtle nuclear power plant in Waynesboro, Ga.—after finalizing two inspection findings involving the unit’s safety-related electrical cable raceway system. Vogtle’s operator, Southern Nuclear, was informed of the decision in a November 17 letter.
The agency had launched a special inspection at Vogtle-3 in June of this year to determine the cause and extent of construction quality issues in the raceway system, which consists primarily of conduits and cable trays designed to prevent a single event from disabling redundant safety-related equipment.
SwRI engineers used LIDAR point cloud data to reconstruct a high-resolution image of a facility that houses electric turbines at the nuclear power plant. 3D cubes, or voxels, on the left provide spatial information on the turbine facility. Point clouds were reconstructed to create the high-resolution image of the turbines on the right. SwRI specializes in data visualizations to identify damage and potential hazards following accidents at nuclear power plants and other hazardous facilities. (Graphic: SwRI)
During the EnRicH 2021 European Robotics Hackathon, Southwest Research Institute’s unmanned aircraft system (UAS or drone) explored and mapped the interior of a nuclear power plant, detecting radiation sources autonomously, without the aid of a human pilot.
SwRI’s UAS technology can potentially assist in life-saving search-and-rescue missions and hazardous inspections at industrial facilities and infrastructure following natural disasters and other incidents.
Diablo Canyon nuclear plant. (Photo: PG&E)
Last April, Entergy had to close its Indian Point nuclear plant. That’s despite the plant’s being recognized as one of the best-run U.S. nuclear plants. That’s also despite its 20-year license extension process having been nearly completed, with full support from the Nuclear Regulatory Commission.
This closure was due in large part to opposition by antinuclear environmental groups. These groups also mobilized existing negative public opinion on nuclear energy to get politicians to oppose the plant’s license extension. Another factor is unfair market conditions. Nuclear energy doesn’t get due government support—unlike solar, wind, and hydro—despite delivering clean, zero-emissions energy.