Hinkley Point B, an Advanced Gas-cooled Reactor (AGR) plant, has formally entered its decommissioning phase. The Office for Nuclear Regulation (ONR) approved the relicensing of the Hinkley Point plant from 
EDF Energy to Nuclear Restoration Services (NRS), a subsidiary of the Nuclear Decommissioning Authority (NDA). This transfer of responsibility signifies the start of the site's decommissioning activities.
The plant, which began generating electricity in February 1976, was permanently shut down in August 2022 after producing over 311 terawatt-hours. Following its shutdown, the process of removing all nuclear fuel commenced. The final fuel elements left the site on November 28 of the previous year. More than 4,900 elements of used fuel were packaged into specialized transport flasks and sent to the Sellafield site in Cumbria for storage. In January 2026, the ONR granted Hinkley Point B Fuel-Free Verification status, confirming the complete removal of nuclear fuel and enabling its transition to decommissioning.
The ONR received EDF Energy's application for decommissioning in September 2024. After a public consultation and a detailed assessment of EDF's environmental statement and Habitats Regulations Assessment by ONR inspectors, the plans were approved in late October 2025. The new license, effective upon site transfer, outlines the conditions for the site's operation during decommissioning. NRS will undertake the dismantling and demolition of the plant and buildings, along with site clearance and restoration. NRS is also responsible for decommissioning the adjacent Hinkley Point A site.
This transition makes Hinkley Point B the first AGR site in England to move to NRS for decommissioning. The process involved collaboration with government, the NDA group, EDF, the Environment Agency, and the Nuclear Liabilities Fund to prepare the site for transfer. The ONR confirmed that NRS demonstrated the necessary skills and capabilities for safe decommissioning. Hinkley Point B is the second AGR site to transfer to the NDA for decommissioning, following Hunterston B earlier this year in April.
