ML23031A253
| ML23031A253 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 12/07/2022 |
| From: | Briana Deboer, Anthony Dimitriadis Division of Nuclear Materials Safety I |
| To: | Indian Point Decommissioning Oversight Board |
| References | |
| Download: ML23031A253 (1) | |
Text
INDIAN POINT ENERGY CENTER DECOMMISSIONING OVERSIGHT BOARD
Dry Spent Fuel Storage Cask Basics
Cask Design and Evaluation Cutaway of spent fuel storage cask shows spent fuel assemblies surrounded by steel and thick concrete shielding
Casks come in different sizes Image of ISFSI Pad at Indian Point
Plants use Special Transporters
Aging Management What materials aging mechanisms can affect the safety functions of storage casks?
Materials + Environments => aging mechanisms and effects Time-Limited Aging Analysis (TLAA): Time-based calculations Aging Management Program (AMP): Activities to detect or prevent aging effects and perform corrective actions NUREG-2214 ML9214A111
High Burnup Fuel NRC guidance on storage and transportation of high burnup fuel published in NUREG-2224 (ML20191A321)
The Department of Energys high burnup fuel research program will evaluate the effects of drying operations and storage
NRC Inspections Ensure ISFSI meets regulations during construction and operation Cover pad design and construction Observe dry runs without spent fuel Monitor cask loading Routine monitoring Regional Inspection Program - Routine Inspections
Regional Inspection Program - Dry Runs
Dry Run training exercise must include:
Loading, Closure/Welding, Handling, and movement to ISFSI pad.
Spent Fuel Security ISFSI security key features:
Armed security officers, intrusion detection, alarm assessment, and response Defense against design basis attacks During decommissioning, the security posture has a strong focus on ISFSI.
As long as fuel is on site, security is maintained
Emergency Planning Emergency planning is required for ISFSIs at reactor sites and at stand-alone facilities The emergency plan includes emergency actions level Emergency plans could include both nuclear and non-nuclear emergencies
ISFSI at Indian Point 69 Holtec HI-STORM 100s currently loaded 127 expected to be loaded by the end of 2023
Summary ISFSIs continue to be inspected for safety and security ISFSIs remain robust and are secured around the clock 24/7 NRC staff will continue to monitor aging management inspections
Questions?