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Sellafield is located on the West Cumbrian coast on the western outskirts of the Lake District National Park. The site has been operational since the 1940s and led the development of the UK’s nuclear industry, from the production of plutonium for the country’s nuclear deterrent programme through to the development of nuclear power generation. The site is home to Calder Hall, the world’s first commercial nuclear power station which operated between 1956 and 2003. Since the closure of Calder Hall and the three Windscale Reactors (Windscale Advanced Gas-cooled Reactor, Windscale Pile 1 and Windscale Pile 2) electricity is no longer generated at the site. The focus of Sellafield Ltd is now on the remediation and clean-up of the hundreds of nuclear and non-nuclear facilities across the site; safe and secure storage of special nuclear materials; and the safe retrieval of nuclear waste from the legacy ponds and silos, for storage in modern facilities.


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Sellafield Main Gate

Sellafield awards £45 million contract to LTi Metaltech to supply products, supporting safe plutonium storage and progress toward long‑term disposa


Sellafield Robot Swabbing

Sellafield’s Remote Technologies Group is the first to use an innovative contamination swabbing tool for quadruped robots, developed through the RA


Sellafield Fellside Units

A familiar feature of the Sellafield skyline has disappeared as major progress is made in the demolition of redundant boiler units at Fellside, the


Sellafield Ltd ground-breaking digital hub

Sellafield Ltd joins forces with local partners and supply chain to fund the creation of LEVELS – a state-of-the-art digital centre in Whitehaven,


Gary McKee awarded MBE

Sellafield Ltd employee Gary McKee has been awarded an MBE in the King’s 2026 New Year Honours List.


UK Plutonium Milestone

The NDA group has delivered a UK-first nuclear milestone, marking a significant step toward permanently disposing of the nation’s plutonium legacy.


Image: Sellafield Ltd

Altrad will join forces with supply chain partners across three key areas of a new Sellafield Ltd framework, which in total is worth up to £4.6bn.<


Sellafield spares to be manufactured in Cumbria

A Cumbria-based collaboration has won a £29.9 million contract to supply spare parts to Sellafield.


Sellafield Ltd awards £2.9bn infrastructure contracts

Three companies have won contracts with a total value of up to £2.9bn to supply key non-nuclear infrastructure works on the Sellafield site.


Multi million-pound government investment for pioneering plutonium disposal technology

The NDA group has been allocated £154 million in government funding to develop specialised capabilities to enable plutonium disposal.