Corporate report
Sellafield Ltd Annual Report and Accounts 2025/26
Sellafield Ltd’s Annual Report and Accounts for 2025/26 sets out our progress in delivering one of the UK’s most complex environmental clean-up programmes.
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Key highlights for 2025/26 include:
- continuing to retrieve, treat and safely store waste from the legacy ponds and silos, including removing 70 tonnes of waste from the Magnox Swarf Storage Silo
- achieving a UK first by processing the first can of plutonium residue into a form suitable for disposal, marking an important milestone in a long-term risk reduction programme
- investing in innovation to accelerate delivery and reduce risk, including deploying a robotic arm in an active nuclear glovebox for the first time at Sellafield
- successfully transitioning from an Upper Tier to Lower Tier COMAH site, reflecting progress in reducing major accident risks