A technician in blue uniform operates industrial plant equipment with a handheld pendant at the Sellafield site Sellafield Ltd Cumbria, England Sellafield Ltd Sellafield Ltd — Sellafield Ltd (Asse Ii, GB). Contains public sector information licensed under the Open Government Licence v3.0 · Open Government Licence v3.0 · source page

Sellafield Ltd says its work operating, developing and decommissioning the Sellafield site is carrying out the biggest environmental restoration effort in Europe. The firm says it works toward the country's safety, security and energy needs.

The company says Sellafield is the only place in the country where every form of nuclear waste can be managed safely, with its teams working to keep the waste secure until a permanent disposal site is available. Sellafield also accepts and holds spent nuclear fuel delivered from Britain's power stations and is charged with guarding the country's biggest stockpile of nuclear materials.

Sellafield has previously helped bring about the world's first commercial-scale nuclear power station. The company says all its activities are driven by a single purpose, and its published priorities include cutting high-hazard risks, managing nuclear waste and delivering major projects.

Why it matters
Sellafield is the UK's only site able to manage every form of nuclear waste until a permanent disposal facility becomes available.

The story so far — Sellafield

  1. July 9, 2026 Sellafield says it is the only UK site able to manage all forms of nuclear waste this story
  2. July 10, 2026 Sellafield Teams Finish Complex Retrieval of Flocculant From Legacy Tank
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