Nuclear Waste Services (NWS), which manages the disposal of the United Kingdom’s low-level radioactive waste, announced this week that a major milestone has been reached at its Low Level Waste Repository in West Cumbria, England, as work begins on the final capping of legacy disposal trenches and vaults at the site.

The United Kingdom’s Nuclear Decommissioning Authority has announced that it will establish a Plutonium Ceramics Academic Hub with the Universities of Manchester and Sheffield. The announcement follows a decision by the U.K. government in January to immobilize the country’s inventory of civil separated plutonium at the Sellafield nuclear site, mitigating the material’s long-term safety and security risks.

The Nuclear Regulatory Commission has updated its guidance for nuclear power plant owners and operators in estimating the cost of decommissioning their reactors. Licensed power reactor operators are required under NRC regulations to annually adjust the estimated costs (in current year U.S. dollars) of decommissioning their plants to ensure that adequate funds are available when needed.

The U.K. government’s Nuclear Waste Services said it has identified three “areas of focus” in its search to find a suitable site and a willing community to host a geologic disposal facility (GDF) for the country’s most hazardous radioactive waste. The areas are within three communities currently involved in the siting process—Mid Copeland and South Copeland in Cumbria, and East Lincolnshire, England.

Nuclear Newswire has learned that the Trump administration last week requested that all members of the Nuclear Waste Technical Review Board resign, except for the board’s chair, Peter Swift.

Finland’s Radiation and Nuclear Safety Authority (STUK) stated that if everything goes well, it can complete the assessment of the operating license for the country’s deep geologic repository for spent nuclear fuel “well before the end of the year.”

A recent Bulletin of the Atomic Scientists article cautions that uncertainty regarding the management of wastes generated by small and advanced reactors could drive up costs, making them uncompetitive with existing light water reactor technology.

Another calendar year has passed. Before heading too far into 2025, let’s look back at what happened in 2024 in the nuclear community. In today's post, compiled from Nuclear News and Nuclear Newswire are what we feel are the top nuclear news stories from October through December 2024.

The Department of Energy has agreed to hold a 30-day review and comment period on a draft environmental analysis associated with a proposed plan for retrieving, grouting, and transporting some of Hanford’s low-activity tank waste for out-of-state disposal.

The National Nuclear Security Administration’s strategy for managing nuclear waste from nuclear weapons maintenance and modernization activities is not comprehensive and does not fully address all statutory requirements, according to a report by the Government Accountability Office.

It's been another successful publishing year for the American Nuclear Society's Nuclear News, Radwaste Solutions, the online Nuclear Newswire, and the NN Daily newsletter.

For Nuclear News, below are the publishing themes for 2025.

If you have story ideas for any of these themes or for Radwaste Solutions, please contact Nucnews@ans.org.

The Department of Energy’s Oak Ridge Office of Environmental Management (OREM) and contractor United Cleanup Oak Ridge (UCOR) have finished fieldwork and have begun monitoring groundwater elevations for a study at the Environmental Management Disposal Facility (EMDF) project site in Tennessee.

The Department of Energy’s Idaho Cleanup Project (ICP) has improved transuranic waste operations to address aging waste containers being stored at the Advanced Mixed Waste Treatment Project (AMWTP) at the Idaho National Laboratory Site, the DOE’s Office of Environmental Management announced on December 10.

Finland’s regulatory authority, the Radiation and Nuclear Safety Authority (STUK), announced that it was further delaying issuing a statement on the safety case for the Onkalo spent nuclear fuel repository until 2025, saying that Posiva’s license application material is not yet ready.

While the United States was celebrating Thanksgiving Day, Canada’s Nuclear Waste Management Organization (NWMO) announced that it has selected a site in northwestern Ontario for a deep geologic repository to hold the country’s spent nuclear fuel

DeepGeo, a Rhode Island–based company seeking to develop multinational spent nuclear fuel repositories, and Denmark-based thorium reactor developer Copenhagen Atomics have signed a collaboration agreement that will see the companies work together on the management of nuclear fuels and waste streams associated with a thorium breeder reactor.

As of last week, crews with Department of Energy cleanup contractor Idaho Environmental Coalition (IEC) processed more than 142,000 gallons of radioactive sodium-bearing tank waste at Idaho’s Integrated Waste Treatment Unit (IWTU) this year.

The Department of Energy’s estimated overall liability for failing to dispose of the country’s commercial spent nuclear fuel jumped as much as 10 percent this year, from a range of $34.1 billion to $41 billion in 2023 to a range of $37.6 billion to $44.5 billion in 2024, according to a financial audit of the DOE’s Nuclear Waste Fund (NWF) for fiscal year 2024.

A five-year, $17.8 million contract has been awarded to Waste Control Specialists for the long-term management and storage of elemental mercury, the Department of Energy’s Office of Environmental Management announced on November 21.

Orano completed the 13th and final rail shipment of vitrified high-level nuclear waste from France to Germany. The company announced that the four casks of vitrified HLW arrived at Germany’s intermediate storage facility at Philippsburg in the early evening of November 20.