Spent Fuel Management & Nuclear Materials (SFM&NM) April 2014 Update

2. A presentation to the Spent Fuel Management and Nuclear Materials Working Group of the West Cumbria Sites Stakeholder Group Spent Fuel Management & Nuclear Materials (SFM&NM) April 2014 Update Stan Baker, Head of Business, Spent Fuel Management

3. Recap: The NDA Mandates given to SFM Complete the reprocessing of all Magnox fuels (Magnox Operating Programme known as MOP) Processing of First Generation Spent Fuels which have provided significant and diverse contribution to UK and International generation capacity. Receive and process other NDA material. Complete Thorp reprocessing contracts by 2018 Processing of Second Generation Fuels (Oxide fuels) - which have continued to provide significant contribution to UK and International generation capacity Interim safe store all remaining AGR lifetime fuel arisings Receipt and interim storage of fuel from the current generation of UK oxide reactors. The planned lifetimes of many of these reactors are being extended Managed closure of the Sellafield MOX Plant Plant rundown and Post Operational Clean Out of the first Sellafield MOX Plant Available to receive Dounreay material December 2014 Hazard reduction and ongoing storage of plutonium bearing materials Treatment of reprocessing products and storage of UK plutonium Operate the Wet Inlet Facility The receipt and storage of material from customer 14 September 2014 3

4. SFM: A reminder of the Plants and Processes SIXEP (Site Ion Exchange Plant) Transport to Sellafield EDF AGR Reactors (6) Inlet Cells (3) flasks Fuel Handling Plant Dungeness Sizewell Oldbury Wylfa AGR Decan Magnox fuel elements Dismantle AGR fuel elements Chapelcross Waste Streams Calder Magnox Reprocessing Plant Thorp Reprocessing Plant Waste Streams Conditioning and Treatment Waste Streams Conditioning and Treatment Uranium and Plutonium Product Finishing and Storage Uranium and Plutonium Product Finishing and Storage Evaporation and Vitrification 14 September 2014 4

5. SFM Headlines January to end of March 2014 • The Magnox Reprocessing revised forecast for 2013/14 of 550Tes was not achieved due to a number of plant issues within the Reprocessing facilities. • The revised year end Thorp shearing target of 335Tes was exceeded - A significant achievement in the final weeks of the financial year which saw an average of 18% uplift in AGR weekly processing rates. • The AGR programme achieved its dismantling target with healthy skip stocks. Fuel receipts from the stations were disrupted during March due to a suspension in fuel movements imposed by edf to enable the re-licensing of the transport flasks. • The MEB removals and Boral insert removal work target was exceeded. Progress towards achieving the ability to caustic dose the pond was recovered during the period. • In the Plutonium Management Facilities Receipts of both Magnox and Thorp material exceeded the in year performance plan with sufficient product storage space available to support reprocessing. • The Plutonium store consolidation programme achieved its targets early. The refills and transfers target were not achieved due to delays in the return of analytical results and delays in regulator approvals.

6. SFM year end summary • 2013-14 was a challenging year for SFM • Magnox Reprocessing shutdown unexpectedly because of a blockage in the ferrous sulphamate line • An earlier than planned outage in the Thorp plant was taken in support of Evaporator C inspection • Given the above, we achieved the revised targets and continued to support the strategic imperatives of our programmes. • The blockage in the Magnox Reprocessing plant was cleared successfully • Support to high hazard reduction programmes continued • SFM Post Operational Clean Out (POCO) Operating Unit was established and is preparing for the end of reprocessing. • The Magnox throughput improvement programme (MTIP) continues to deliver enhanced risk mitigation and restore capability. • Thorp delivery assurance programme (TDAP) was created and delivered to NDA

7. Magnox Reprocessing

8. Ongoing Receipt of AGR Fuel

9. Thorp Reprocessing

10. Safe Storage of Plutonium

11. Overseas Plutonium Return (SMP)

12. Wet Inlet Facility

13. Operations Division • Spent Fuel management is now part of Operations Division under the site’s Chief Operating Officer. • The Key focus of Operations Division is to drive the completion of the Magnox and Thorp reprocessing programmes and the organisation is shaped to enable this. • As the Operations Division Organisation develops individuals will be released to support the Decommissioning programme