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 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.

After decades of planning and weeks of preparation and checks, the first batch of legacy waste has been retrieved from the Pile Fuel Cladding Silo at the Sellafield nuclear site in West Cumbria, England. According to Sellafield Ltd., the site license company, a state-of-the-art robotic arm was used to reach into the silo and, for the first time, remove and repackage the waste for longer-term storage.

These retrievals mark a significant achievement in progress toward the cleanup and decommissioning of one of the most hazardous buildings on the site, according to Sellafield Ltd., which made the announcement on August 16.

Watch a video about the Pile Fuel Cladding Silo and Sellafield’s waste retrieval operations here.

Robotics experts from Sandia National Laboratories and representatives from the Department of Energy Office of Environmental Management’s Technology Development Office recently visited the Sellafield nuclear site in England to discuss how robotics, artificial intelligence, and other emerging tools can be developed and used in nuclear cleanup operations.

Technical specialist Peter King (left) and Sam Jay, UAV engineer and chief pilot, at Sellafield’s Engineering Centre of Excellence, with the Flyability Elios 3 drone. (Photo: Sellafield)

Sellafield Ltd., a subsidiary of the U.K. government’s Nuclear Decommissioning Authority, announced that drone pilots have successfully completed two firsts in the use of unmanned aerial vehicles (UAV) at the Sellafield nuclear site in Cumbria, England.

According to the company, the flights, which accessed a Sellafield building with limited space using a light detection and ranging (lidar) sensor and a radiation dosimeter, are helping improve the safety of employees during the decommissioning of the site’s legacy buildings.

Mapping flight: First, an Elios 3 drone equipped with a lidar sensor was able to successfully collect data from a site building. The data will be processed to produce a 3D model of the area, which will help inform engineering decisions. According to Sellafield, the mapping flight marks a major milestone for the site’s UAV team, enabling unparalleled efficiency in mapping and 3D modeling.

The Nuclear Decommissioning Authority, the governmental organization responsible for the cleanup and decommissioning of the United Kingdom’s 17 nuclear sites, has released its business plan for the fiscal years running from April 1, 2023, through March 31, 2026. The plan provides a summary of the activities and progress the NDA expects to make at its nuclear sites over the next three years.

In introducing the report, NDA group chief executive officer David Peattie wrote, “This business plan sets out a challenging program of work, reducing hazards while contributing to a globally significant sustainability agenda, developing our people, and supporting our communities.”

The full report Nuclear Decommissioning Authority Business Plan: 1 April 2023 to 31 March 2026 can be found here.

In December 2022, UCC UK became the first nuclear diving company in more than 60 years to enter Sellafield’s PFSP. (Photo: Sellafield Ltd.)

Underwater Construction Corporation (UCC) UK Ltd. announced that it has recently completed a nuclear diving pilot project at the Pile Fuel Storage Pond (PFSP) at the Sellafield nuclear site in Cumbria, England. UCC UK said the project marks a significant decommissioning milestone for Sellafield, demonstrating the capability of the company’s methods and equipment to remediate the legacy nuclear pond while limiting worker dose.

The oldest pool on the Sellafield site, the PFSP was constructed between the late 1940s and early 1950s as a storage and cooling facility for irradiated fuel and isotopes from the two Windscale reactors and was in full operation until 1962. Then through the mid-1970s, the pond facility, one of six on the site, was used for storage of intermediate-level waste and fuel from the U.K. nuclear program.

The second of three machines that will be used to safely remove waste from the Magnox Swarf Storage Silo at the Sellafield nuclear site in the United Kingdom has successfully been assembled, it was announced by Sellafield Ltd., a subsidiary of the U.K. government’s Nuclear Decommissioning Authority.

A video showing how waste is removed and the Magnox Swarf Storage Silo prepared for decommissioning has been posted to YouTube and can be found here.

The United Kingdom’s Nuclear Decommissioning Authority (NDA) has announced the signing of a memorandum of understanding with Cwmni Egino to support the development of a small-scale nuclear project in North Wales.

Dounreay Site Restoration Ltd. (DSRL) and the Robotics and Artificial Intelligence in Nuclear (RAIN) Hub, a consortium of universities led by the University of Manchester, are working together on the development of robots capable of accessing areas that are inaccessible or unsafe for humans to work in. The robots will be used to inspect and characterize Dounreay’s laboratories, buildings, and structures as the United Kingdom prepares to decontaminate and decommission the nuclear site.

The government of the United Kingdom on January 31 announced the launch of Nuclear Waste Services. The new organization brings together site operator Low Level Waste Repository Limited, geological disposal facility developer Radioactive Waste Management Limited, and the Nuclear Decommissioning Authority’s (NDA) Integrated Waste Management Program.

According to the U.K. government, Nuclear Waste Services will maintain current commitments to the Low-Level Waste Repository in West Cumbria, the geological disposal facility program, and the communities involved with both, while also creating a business with the capability to manage U.K. nuclear waste “safely and securely for generations to come.”

The U.K. government and EDF have agreed to improved arrangements for the decommissioning of Britain’s seven advanced gas-cooled reactor nuclear power plants, which are due to reach the end of their operational lives this decade.

The U.K.’s Bradwell Magnox site after being placed in “care and maintenance."

The National Audit Office (NAO) of the United Kingdom reported on September 11 that the total cost of the work needed to put the country’s Magnox nuclear sites into “care and maintenance” has increased by up to an estimated £2.7 billion (about $3.5 billion) since the office’s last estimate in 2017. The NAO, which scrutinizes U.K. public spending, released its findings in a report examining the Nuclear Decommissioning Authority’s (NDA) management of a renegotiated decontamination and decommissioning contract with Cavendish Fluor Partnership.

The inspection desk in use at Sizewell A.

A piece of British nuclear history may be coming to a movie theatre (or streaming service) near you. The United Kingdom’s Nuclear Decommissioning Authority (NDA) sold, at auction, a reactor in-core inspection desk to an Oxford-based film studio known to have been involved with productions such as World War Z, Iron Man 2, and Harry Potter and the Deathly Hallows.

The inspection desk, which was used to remotely check conditions deep inside the gas-cooled reactors at Sizewell A nuclear power plant in Suffolk, England, received a high bid of £10,200 (about $13,000), according to a September 7 press notice from Magnox Ltd., the NDA company responsible for the cleanup of the U.K.’s former Magnox reactors. The desk was last used in 2005, just before the site stopped generating electricity.

The global engineering company Jacobs, under a contract with Radioactive Waste Management Ltd. (RWM), will be studying the release of radioactivity from irradiated graphite taken from reactor core samples at the United Kingdom’s nuclear power plants. According to Jacobs, the research will support RWM, a subsidiary of the U.K. government’s Nuclear Decommissioning Authority, in its analysis of graphite behavior and the options for graphite waste management in the future.