October 29, 2024, 7:03AMRadwaste SolutionsBruce Fox, David Lowe, Jack Reust, and Sean McCutcheon The U.S. Navy’s Surface Ship Support Barge arrives in Mobile, Ala., for demolition after being towed by sea from Virginia. (Photos: APTIM)
The U.S. Navy’s Surface Ship Support Barge, converted in the 1960s from a WWII T2 tanker to a support barge to accept spent nuclear fuel during the refueling of nuclear aircraft carriers, was dismantled and disposed of by the nuclear decommissioning company APTIM as a first-of-its-kind vessel dismantlement project for the Navy. The project was executed under contract with Naval Sea Systems Command; however, regulatory oversight was accomplished through an interagency framework agreement between the U.S. Navy and the Nuclear Regulatory Commission.
The Sellafield nuclear site in Cumbria, England. (Photo: NEA/OECD)
Despite progress made over the past years, the United Kingdom’s Nuclear Decommissioning Authority (NDA) has not seen an adequate return on investment in cleaning up the Sellafield nuclear site on England’s Cumbria coast, according to a new report by the U.K.’s National Audit Office, which scrutinizes government spending.
The S5G prototype, which was constructed to simulate submarine operations and could mimic ocean-like conditions, is positioned inside a subgrade basin. (Photo: IEC)
The Department of Energy is proposing to fully decommission the Submarine 5th Generation General Electric (S5G) prototype at the Naval Reactors Facility on the Idaho National Laboratory site. Along with the Environmental Protection Agency and the state of Idaho, the DOE has initiated a 30-day public comment period (ending November 14) on the planned end state for the facility and its defueled reactor vessel.
The USACE tackles the former military reactor in Alaska
October 11, 2024, 3:00PMRadwaste SolutionsThe U.S. Army Corps of Engineers, Baltimore District A team member wearing a powered air-purifying respirator prepares to enter the SM-1A vapor containment structure. (Photo: USACE/David Gray)
With the recent mobilization at the site of the former SM-1A nuclear power plant at Fort Greely, Alaska, the Radiological Health Physics Regional Center of Expertise, located at the U.S. Army Corps of Engineers’ Baltimore District, began its work toward the decommissioning and dismantlement of its third nuclear power plant, this time located just 175 miles south of the Arctic Circle.
The JCB excavator robot developed by Forth Engineering for the Sellafield nuclear site.
Robotics is fast becoming a go-to for nuclear decommissioning advances, and several organizations working in West Cumbria, England, the hub of the United Kingdom’s energy sector, have formed a partnership to share insight and work together to address common challenges and opportunities. Cumbria Robotics Cluster is an ambitious initiative powered by the Industrial Solutions Hub (iSH) to harness and expand the region’s renowned capabilities in cutting-edge engineering and problem solving.
Decommissioning begins on the closed Wisconsin power plant
Wisconsin’s Kewaunee nuclear power plant as it appeared in May of this year. A number of ancillary buildings have already been demolished and their waste removed. The intermodal waste transportation staging areas can be seen to the left. The site ISFSI is out of view to the right. (Photo: EnergySolutions)
In October 2012, Dominion Energy announced it was closing the Kewaunee nuclear power plant, a two-loop 574-MWe pressurized water reactor located about 27 miles southeast of Green Bay, Wis., on the western shore of Lake Michigan. At the time, Dominion said the plant was running well, but that low wholesale electricity prices in the region made it uneconomical to continue operation of the single-unit merchant power plant.
The Sellafield nuclear site in Cumbria, England. (Photo: Simon Ledingham)
The Nuclear Decommissioning Authority (NDA), the government agency charged with cleaning up the United Kingdom’s nuclear sites, has awarded three contracts totaling £30 million (about $39 million) for research into new decommissioning techniques.
Remote equipment is used to remove components from the Garigliano reactor vessel. (Photo: Sogin)
Sogin (Società Gestione Impianti Nucleari), the state-owned company responsible for the decommissioning of Italy’s nuclear plants and the management of radioactive waste, announced on July 30 that it has completed the first phase of dismantling Garigliano nuclear power plant’s reactor vessel with the removal of contaminated metal components from the deflector.
The Vallecitos Nuclear Center site in northern California. (Photo: Wikimedia Commons)
By an order dated April 25, the Nuclear Regulatory Commission has approved the transfer of ownership of Vallecitos Nuclear Center from GE Hitachi Nuclear Energy to NorthStar Group Services for nuclear decontamination, decommissioning, and environmental site restoration.
Workers at the West Valley Demonstration Project prepare a large tank for loading after removing it from a liquid waste cell of the Main Plant Process Building. (Photo: DOE)
The Department of Energy’s Office of Environmental Management and its cleanup contractor at the West Valley Demonstration Project have removed the largest of nine tanks from a liquid waste cell as part of the ongoing demolition of the Main Plant Process Building, the office announced on February 6.
The Pilgrim nuclear power plant. (Photo: Holtec)
The state of Massachusetts is looking to require Holtec, the owners of the Pilgrim nuclear power plant, to analyze water evaporation at the plant for potential air pollution as the unit is decommissioned.
At a hearing this week with a state Department of Environmental Protection panel, officials said that more study is needed on nonradioactive contaminants in about 1 million gallons of water that Holtec has proposed discharging into Cape Cod Bay.
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.
The Palisades nuclear power plant. (Photo: Entergy)
The Nuclear Regulatory Commission has granted Holtec Decommissioning International’s request to revise the emergency preparedness plan for the Palisades nuclear power plant in Covert, Mich., to reflect the plant’s decommissioning status.
The Crystal River-3 nuclear power plant.
The Nuclear Regulatory Commission announced that it will hold a hybrid public meeting on December 7 to discuss the license termination process and to accept comments on the remaining cleanup activities under the license termination plan for the Crystal River-3 nuclear power plant in Crystal River, Fla.
The Zion nuclear plant site as it appeared earlier this year. (Photo: Tim Gregoire)
The Nuclear Regulatory Commission has released for “unrestricted use” most of the land on and around where the Zion nuclear power plant once operated in northeastern Illinois. This means that any residual radiation is below the NRC’s limits and there will be no further regulatory controls by the agency for that portion of the property.