Solid Radioactive Waste Strategy Report.pdf - UK EPR

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EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 24 / 257 Decommissioning · The Base Case assumes that decommissioning begins when the station is shut down and ceases generating electricity for the last time; · The Base Case assumes that the final site end state will be such that all station buildings and facilities have been removed, the site returned to a state agreed with the regulators and the planning authority and released from the control of the nuclear site licence; · Early decommissioning of the reactor and maintenance of the interim storage facilities for 100 years (from generation of the first waste package). Waste Minimisation Operators are expected to set down the steps they will take throughout all of the stages of the station’s life to ensure that waste activity and volumes are minimised throughout reactor life; for example by careful segregation of waste arisings and by minimisation of secondary wastes. 2.2 EPR Waste Strategy Lifecycle One of a number of possible EPR waste strategy lifecycles is summarised below (Table 1). This is an indicative decommissioning programme only. Decomissioning programmes will be defined by the utilities.
EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 25 / 257 Table 1: Possible EPR Waste Strategy Lifecycle Activity Year Reactor Operation (60 years) Start of EPR 0 Shutdown of EPR +60 (assuming no life extension) First operational waste processed +1 Last operational waste processed +61 First fuel discharge to pool +1.5 Last fuel discharge to pool +60 Reactor Decommissioning (12 years) Decontamination of primary circuit +61 Dismantling of Nuclear Island +66 to +72 Dismantling of primary circuits +66 to +70 End of decommissioning +72 ILW Interim Storage Facility (100 years) Start of operation +1 End of operation +100 First ILW package to facility +1 Last ILW package to facility +70 Last ILW package to leave facility for disposal +100 Spent fuel Interim Storage Facility (100 years) Start of operation +10 End of operation +100 First spent fuel assembly to facility +10 Last spent fuel assembly to facility +70 Last spent fuel assemblies to leave ISF for disposal +100 Geological Disposal Facility available +100
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