Pile Fuel Cladding Silo Programme

The Pile Fuel Cladding Silo (PFCS) is a legacy silo on the Sellafield site. It was built in the 1950’s and was filled over the following few decades. Waste in the silo primarily consists of aluminium pile fuel cladding, but it also has significant quantities of Magnox Swarf and other miscellaneous items. It is one of the most significant radiological challenges in the UK

Cavendish Nuclear, as part of a joint venture, is tasked with the delivery of plant and equipment capable of accessing the historic waste, removing it and transferring it into containers for safe interim storage.

Working in collaboration with Sellafield Ltd, we are solving complex problems with practical solutions to facilitate the earliest possible start of retrieval operations. To achieve this vision, the plant provided will enable access to the silo, remove waste and containerise it ready for transport and safe storage prior to final disposal.

The breadth of expertise on the project allows us to develop a design that meets the functional requirements by the most efficient means. Our extensive knowledge of setting to work and commissioning plants to perform complex operations on nuclear licenced sites is embedded in our solutions at the design stage. Our engineering teams understand that the best solutions are usually employ the simplest manufacturing techniques and use proven technology and equipment that is readily available from the supply chain.

The programme is reaping the rewards of a totally collaborative working environment. The silo access element of the project was delivered on time, within cost and to exacting standards and quality. The retrievals element of the project is now on target to meet an aggressive schedule to retrieve the first container of waste in June 2019.  This is a staggering 3 years ahead of schedule with a cost saving in excess of £400m against the previous scheme.

Sellafield Limited
£600 Million
2011 -2021
Design and Engineering, Manufacture, Assembly, Test, Install and Commission

Click image below to download the full PFCS Case Study.