ML23117A374
| ML23117A374 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 05/02/2023 |
| From: | NorthStar Group Services |
| To: | Reactor Decommissioning Branch |
| Hood T | |
| References | |
| Download: ML23117A374 (15) | |
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Decommissioning Lessons Learned NorthStar Vermont Yankee Project May 2, 2023
2 VY: GE 3/4 BWR with Mark I Containment Constructed 1967-1971 Operation 1972-2014 Original design 1592 MWt (540MWe) uprated in 2006 to 1912MWt (620MWe)
Vermont Yankee has a small footprint compared to many commercial nuclear facilities:
Site property is approximately 140 acres Original Operating Protected Area is 12 acres ISFSI Protected Area 1.3 acres
2014 2015 2013 2016 August 27, 2013 Entergy announces it will cease operations December 29, 2014 Permanent Shutdown April 2016 Implemented Permanently Defueled Emergency Plan September 23, 2013 Entergy submits notification of intent to cease operations to the NRC January 12, 2015 Fuel permanently removed from reactor vessel Commercial Operations began in 1972 2020 2018 February 5, 2015 Implement Post-Shutdown Emergency Plan 2017 2019 SAFSTOR I SAFSTOR II ISFSI Operations 2018 Implemented ISFSI Emergency Plan 3
January 11, 2019 Acquired by NorthStar
2014 2015 2013 2016 August 27, 2013 Entergy announces it will cease operations December 29, 2014 Permanent Shutdown April 2016 Implemented Permanently Defueled Emergency Plan September 23, 2013 Entergy submits notification of intent to cease operations to the NRC January 12, 2015 Fuel permanently removed from reactor vessel Commercial Operations began in 1972 2020 2018 February 5, 2015 Implement Post-Shutdown Emergency Plan 2017 2019 ISFSI Operations 2018 Implemented ISFSI Emergency Plan 3
- ISFSI Physical Security Plan
- ISFSI Emergency Plan and EALs
- Tech Specs Permanent Removal of Fuel from SFP
- Exemption Request Re 10 CFR 72.212 (2 Yrs. cooled fuel, High DHR)
- LAR - Cyber Security Milestone 8 Extension
- License Transfer Application
- Exemption Request re 10 CFR 72.212 (CoC Note 19)
- 10 CFR 20.2002 Alternate Disposal Request U.S. Ecology - Idaho
- LAR - Emergency Plan all Fuel in SFP (14)
- Exemption Request Commingled Funds Request
Records Retention
- LAR - Emergency Plan (Zirc fire window)
- LAR - Mitigation Strategy License Condition
- LAR - Cyber Security Implementation Schedule
- LAR - Defuel Tech Specs (Certified Fuel handler)
- Irradiated Fuel Management Plan (IMFP)
- Decommissioning Cost Estimate (DCE)
- Post Shutdown Decom Activities Report (PSDAR)
- Exemption Request Insurance 10CFR50.54(NEIL)
- Exemption Request Insurance 10CFR140 (ANI)
- LAR - Post Shutdown Emergency Plan SAFSTOR I SAFSTOR II
- Exemption Request for Security Training and Force-on-Force Exercises Prompt Decommissioning
Corporate Headquarters - New York City Regional Offices:
Austin, Boston, Chicago, Cincinnati, Dallas, Denver, Los Angeles, NYC/New Jersey, Houston, Orlando, Philadelphia, Portland, San Francisco, Seattle, Tampa NorthStar Group Services, Inc.
5 Leading provider of highly technical infrastructure and environmental services in the United States Founded 1986 Over 30 Offices Nationwide Safety - 2022 EMR 0.69 Backlog exceeds $3 billion Annual Revenue more than $1 billion
$10 billion in projects since 1986 7,500+ Annual Projects Largest Integrated Decommissioning and Demolition Company in the World Nationwide Branch Network
6 With NorthStar safety is not just a goal, it is a responsibility. With statistics below the industry average for 25 years, safety is one of Northstars main competitive advantages.
NorthStar remains committed to delivering quality work with the safety and health of our employees as a top priority. This responsibility goes far beyond compliance with regulatory requirements, exceeding minimum standards, and helps us to achieve sustainable safe work environments on every project.
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- SAFETY with all we do: Target Zero (accidents)
Nuclear, Radiological, Environmental, Industrial Do it right. Do it safe.
Reactor Vessel Segmentation with Orano 8
Work plan Sequence GE BWR Mark I Reactor Vessel 5 1/2 thick forged carbon steel walls, clad with stainless steel 55 height (not including head) 17 internal diameter Reactor Head alone 60 tons (10 1/2 thick and 22 tall at flange)
Reactor Vessel approx. 390 tons 3-D Modeling of reactor and associated components allowed for significant optimization of cutting and packaging plans Reactor vessel and all internal components have been disposed.
Reactor Vessel Segmentation ALARA OE 9
Work plan Sequence Select components evaluated as GTCC Waste were packaged into a single dry cask for storage at the VY ISFSI Specialized tooling of multiple varieties were used for cutting processes Cutting and packaging work was broken into sequences Generally activities started at the top of the vessel and worked downward 17 spec built Custom Boxes were used of 11 different sizes Precise geometries were obtained during cutting to optimize packaging and self shielding of segmented components Most cutting operations were performed underwater
VY Material Handling Safety OE 10
Safety /Regulatory/Production 12 Shipping 3-4 rail cars per week to WCS (averaging about 11 per month)
Total Number of Shipments to Date: 599 Total Weight 66,955,320 lbs (34,478 tons)
Total Activity 35,620 curies Since VY ownership under NorthStar:
1.4 Million Person Hours worked (and counting) with no OSHA recordable lost time events Zero Cited Regulatory Violations On track to finish Decommissioning years ahead of 2030 committed completion date
Decommissioning Lessons Learned Crystal River 3 (CR3) 13
14 CR3 Plant Information B&W PWR 2,609 MWt (860 Mwe)
Operations 1977-2011; all fuel on pad in 2018 NRC Operating License transferred from Duke Energy to Accelerated Decommissioning Partners (ADP) on October 1, 2020 ADP: Joint Venture of NorthStar Group Services and Orano Decommissioning Holdings Decommissioning Status RV/RVI segmentation and packaging in Orano Optimized Segmentation using only 3 main large packages 2 GTCC canisters transferred to ISFSI Waste Shipments to WCS by rail ongoing with VY OE incorporated as lesson learned On track to finish ahead of 2027 target completion date Decommissioning Lessons Learned Crystal River 3 (CR3)
15 SIMPLE PRIORITIES SAFETY with all we do: Target Zero ( accidents)
Nuclear, Radiological, Environmental, Industrial Do it right. Do it safe.