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EPID:L-2024-LRM-0009, Constellations Pre-Submittal Meeting Presentation About Peach Bottom ECCS Compensated Level System Replacement Project - July 22, 2024 (Open) |
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Category:Meeting Briefing Package/Handouts
MONTHYEARML24302A2422024-10-29029 October 2024 ECCS Compensated Level System Replacement Project Pre-Submittal Meeting Slides ML24200A2312024-07-22022 July 2024 Constellations Pre-Submittal Meeting Presentation About Peach Bottom ECCS Compensated Level System Replacement Project - July 22, 2024 ML24137A1882024-05-16016 May 2024 Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - NRC Presentation Slides ML24134A2032024-05-14014 May 2024 Lessons Learned for ECCS Digital I&C License Amendment - Rev 0 ML24131A1282024-05-14014 May 2024 Lessons Learned for ECCS Digital I&C License Amendment ML24121A1862024-05-14014 May 2024 Attachment 3: Peach Bottom ECCS Compensated Level System Replacement Project Presentation Material (Non-Proprietary Information) ML24100A7672024-04-11011 April 2024 Meeting Slides - Preapplication with Constellation on Planned Fleet Alternative Request to Adopt OMN-2 ML24089A2612024-04-0909 April 2024 Slides - Constellation - Pre-Application Regarding Hooded Masks 4/9/2024 Meeting Slides (L-2024-LLM-0041) ML24029A1742024-01-30030 January 2024 Constellation Pre-Application January 30, 2024, Meeting Slides - Proposed Alternative to Utilize Code Case N-932, Alternative Requirements for Acceptance of Containment Base Metal Corrosion or Erosion ML23317A0712023-11-14014 November 2023 NRC Pre-Submittal Meeting on November 14th, 2023 - TSTF-591 and Selected 50.69 License Condition Updates (EPID L-2023-LLM-0098) (Slides) ML23255A1042023-08-11011 August 2023 Slides - Constellation - Pre-Application EP 9/18/2023 Draft CEG Presubmittal SG Performance Monitoring Plan Meeting Handout ML23170A0082023-06-29029 June 2023 Decommissioning Presentation for NRC Pre-submittal Meeting, June 29, 2023 ML23157A0352023-06-0606 June 2023 Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - NRC Presentation Slides ML23094A1492023-04-11011 April 2023 Licensee Presentation on Whr Exemption Request for Public Meeting on April 11, 2023 ML23076A0442023-03-16016 March 2023 Pb U2 Scram Barrier Presentation KT Session ML21314A4472021-11-10010 November 2021 Slides for Presubmittial Meeting for Proposed Alternative to Adopt ASME Code Case N-921 to Extend the Inservice Inspection Interval ML21165A1942021-06-16016 June 2021 Joint Annual Assessment Meeting for Pa/Md/Nj/Ny Nuclear Power Plants - Webinar Presentation ML21165A2882021-06-16016 June 2021 Joint Annual Assessment for Pa/Md/Nj/Ny Nuclear Power Plants - Webinar Presentation (Updated) ML21095A0162021-04-0505 April 2021 2021 RIC Session T12 - DOE-Sponsored Light Water Reactor Sustainability Program ML20261G7322020-09-16016 September 2020 Pre-Submittal Slides Extend 120-month Isi/Ist Interval Under 50.55a ML20178A4202020-06-30030 June 2020 NEI Slides for June 30, 2020, Public Meeting on COVID-19 Response ML20170B0212020-06-23023 June 2020 NRC Pre-Submittal Meeting Byron Unit 2 One-Time Deferral of Reactor Pressure Vessel Head Penetration Nozzle (Rpvhpn) Inspections ML20175A8722020-06-23023 June 2020 Risk-Informed Inservice Inspection - U.S Nuclear Regulatory Commission (NRC) - Four Element Risk-Informed Approach ML20163A6552020-06-16016 June 2020 6-16-20 Byron Unit 2 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections ML20169A5592020-06-16016 June 2020 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections (Rev 1) ML20168A3192020-06-15015 June 2020 Joint Annual Assessment Meeting for Pa/Md Power Plants - Webinar Presentation ML19318F9512019-11-20020 November 2019 Presentation Slides for November 20, 2019, Pre-Application Meeting - Request for Revision to Quality Assurance Program Internal Audit Frequency ML19317C9952019-11-12012 November 2019 In-Service Testing Supplemental Position Indication Relief Request NRC Pre-Application Meeting November 18, 2019 ML19308B9262019-11-0505 November 2019 ACRS Plant License Renewal Subcommittee - Peach Bottom Atomic Power Station Units 2 and 3 Subsequent License Renewal Safety Evaluation Report (SER) with Confirmatory Item ML19256E3522019-09-12012 September 2019 Slides - Peach Bottom SLRA Dseis Public Meeting - Sep 12 2019 ML19256E3852019-09-12012 September 2019 SLR Dseis Public Meeting Sept 12 2019 - Scott Portzline - Former Three Mile Island Alert Presentation ML19157A0542019-06-0606 June 2019 Joint Annual Assessment Meeting (Webinar) for Pennsylvania Power Plants - NRC Presentation Slides ML19161A2572019-06-0404 June 2019 BWR Fleet Msv/Srv - Testing Frequency Relief Request NRC Pre-Application Meeting June 4, 2019 ML19151A6602019-05-31031 May 2019 BWR Fleet Mssv/Srv Testing Frequency Relief Request NRC Pre-Application Meeting June 4, 2019 ML19084A0982019-03-22022 March 2019 Potential Topics for Pre-Application Meetings for Peach Bottom SLRA ML19022A2002019-01-23023 January 2019 Request for Use of ASME Code Case N-879 for Exelon Nuclear Power Plants ML18347B3142018-12-19019 December 2018 Bwrvip/Asme Relief Request Discussion December 19, 2018 ML18334A2162018-11-30030 November 2018 Presentation Slides: Exelon BWR MSIV (Boiling-Water Reactor - Main Steam Isolation Valve) Leakage Optimization for NRC Pre-Submittal Meeting of December 6, 2018 ML18319A1272018-11-19019 November 2018 Slides for 11/19/18 Public Meeting - Exelon Fleet LAR for Common Language for TS 5.7 High Radiation Areas ML18144A6932018-05-31031 May 2018 License Amendment Request for Expanded Actions for LEFM Flow Meter Conditions - NRC Pre-Submittal Meeting May 31, 2018 ML18141A3072018-05-21021 May 2018 18 - SLR Status ML18054B3592018-02-27027 February 2018 Slide: NRC Pre-Submittal Meeting for Exelon Fleet LAR to Relocate TS Unit Staff Qualification ANSI Requirements to the QATR, February 27, 2018, Profile Info: Submitted by Frank Mascitelli ML17320A2002017-11-15015 November 2017 Insights from Implementing FLEX in the Peach Bottom Seismic PRA Model ML17257A1612017-09-19019 September 2017 September 19, 2017 Pre-application Public Meeting Presentation on Peach Bottom Subsequent License Renewal Application ML17142A2382017-05-25025 May 2017 OEDO-17-00280 - Briefing Package for Drop-In Visit on June 9, 2017, by Senior Management of Exelon Generation Company, LLC with Chairman Svinicki, Commissioner Baran, and Commissioner Burns ML16077A1562016-03-22022 March 2016 Fleet: Pre-application Teleconference with Exelon to Discuss a Potential License Amendment Request Regarding Operating Training Standards ML16075A3292016-03-16016 March 2016 OEDO-16-00165 - Briefing Package for Drop-In Visit on March 23, 2016, by Senior Management of Exelon Generation Company, LLC with the NRC Executive Director for Operations ML12159A2662012-06-11011 June 2012 County Generating Station Pre-Application Meeting Extended Power Uprate: Replacement Steam Dryers. June 11, 2012 ML12130A0992012-05-0909 May 2012 Annual Assessment Meeting Slides Presentation Rev. 0, 2012 ML12130A1172012-05-0909 May 2012 Pb 2012 Public Mtg Attendance Sheet April 2012 2024-07-22
[Table view] Category:Slides and Viewgraphs
MONTHYEARML24310A0672024-11-0505 November 2024 Constellation NRC Pre-Submittal Meeting Slides - Proposed Alternative for Reactor Vessel Closure Stud Exam Optimization ML24302A2422024-10-29029 October 2024 ECCS Compensated Level System Replacement Project Pre-Submittal Meeting Slides ML24200A2312024-07-22022 July 2024 Constellations Pre-Submittal Meeting Presentation About Peach Bottom ECCS Compensated Level System Replacement Project - July 22, 2024 ML24137A1882024-05-16016 May 2024 Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - NRC Presentation Slides ML24131A1282024-05-14014 May 2024 Lessons Learned for ECCS Digital I&C License Amendment ML24121A1862024-05-14014 May 2024 Attachment 3: Peach Bottom ECCS Compensated Level System Replacement Project Presentation Material (Non-Proprietary Information) ML24134A2032024-05-14014 May 2024 Lessons Learned for ECCS Digital I&C License Amendment - Rev 0 ML24100A7672024-04-11011 April 2024 Meeting Slides - Preapplication with Constellation on Planned Fleet Alternative Request to Adopt OMN-2 ML24089A2612024-04-0909 April 2024 Slides - Constellation - Pre-Application Regarding Hooded Masks 4/9/2024 Meeting Slides (L-2024-LLM-0041) ML24029A1742024-01-30030 January 2024 Constellation Pre-Application January 30, 2024, Meeting Slides - Proposed Alternative to Utilize Code Case N-932, Alternative Requirements for Acceptance of Containment Base Metal Corrosion or Erosion ML23317A0712023-11-14014 November 2023 NRC Pre-Submittal Meeting on November 14th, 2023 - TSTF-591 and Selected 50.69 License Condition Updates (EPID L-2023-LLM-0098) (Slides) ML23251A0782023-09-0606 September 2023 DRE1 Decom Pre-Submittal Slides ML23255A1042023-08-11011 August 2023 Slides - Constellation - Pre-Application EP 9/18/2023 Draft CEG Presubmittal SG Performance Monitoring Plan Meeting Handout ML23170A0082023-06-29029 June 2023 Decommissioning Presentation for NRC Pre-submittal Meeting, June 29, 2023 ML23157A0352023-06-0606 June 2023 Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - NRC Presentation Slides ML23094A1492023-04-11011 April 2023 Licensee Presentation on Whr Exemption Request for Public Meeting on April 11, 2023 ML23076A0442023-03-16016 March 2023 Pb U2 Scram Barrier Presentation KT Session NEI 99-01, Slides - Constellation - Pre-Application EP 2/23/2023 Meeting Slides2023-02-21021 February 2023 Slides - Constellation - Pre-Application EP 2/23/2023 Meeting Slides ML21314A4472021-11-10010 November 2021 Slides for Presubmittial Meeting for Proposed Alternative to Adopt ASME Code Case N-921 to Extend the Inservice Inspection Interval ML21165A1942021-06-16016 June 2021 Joint Annual Assessment Meeting for Pa/Md/Nj/Ny Nuclear Power Plants - Webinar Presentation ML21165A2882021-06-16016 June 2021 Joint Annual Assessment for Pa/Md/Nj/Ny Nuclear Power Plants - Webinar Presentation (Updated) ML21162A3322021-06-11011 June 2021 BWR Fleet Relief Request Associated with RPV Instrument Nozzle Repairs ML20261G7322020-09-16016 September 2020 Pre-Submittal Slides Extend 120-month Isi/Ist Interval Under 50.55a ML20178A4202020-06-30030 June 2020 NEI Slides for June 30, 2020, Public Meeting on COVID-19 Response ML20170B0212020-06-23023 June 2020 NRC Pre-Submittal Meeting Byron Unit 2 One-Time Deferral of Reactor Pressure Vessel Head Penetration Nozzle (Rpvhpn) Inspections ML20175A8722020-06-23023 June 2020 Risk-Informed Inservice Inspection - U.S Nuclear Regulatory Commission (NRC) - Four Element Risk-Informed Approach ML20163A6542020-06-18018 June 2020 2020 NRC Annual Assessment Webinar Presentation - Pennsylvania and Maryland Facilities (Beaver Valley, Calvert Cliffs, Limerick, Peach Bottom, Susquehanna) ML20169A5592020-06-16016 June 2020 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections (Rev 1) ML20163A6552020-06-16016 June 2020 6-16-20 Byron Unit 2 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections ML20168A3192020-06-15015 June 2020 Joint Annual Assessment Meeting for Pa/Md Power Plants - Webinar Presentation ML19308B9262019-11-0505 November 2019 ACRS Plant License Renewal Subcommittee - Peach Bottom Atomic Power Station Units 2 and 3 Subsequent License Renewal Safety Evaluation Report (SER) with Confirmatory Item ML19256E3522019-09-12012 September 2019 Slides - Peach Bottom SLRA Dseis Public Meeting - Sep 12 2019 ML19256E3852019-09-12012 September 2019 SLR Dseis Public Meeting Sept 12 2019 - Scott Portzline - Former Three Mile Island Alert Presentation ML19157A0542019-06-0606 June 2019 Joint Annual Assessment Meeting (Webinar) for Pennsylvania Power Plants - NRC Presentation Slides ML18347B3142018-12-19019 December 2018 Bwrvip/Asme Relief Request Discussion December 19, 2018 ML18334A2162018-11-30030 November 2018 Presentation Slides: Exelon BWR MSIV (Boiling-Water Reactor - Main Steam Isolation Valve) Leakage Optimization for NRC Pre-Submittal Meeting of December 6, 2018 ML18319A1272018-11-19019 November 2018 Slides for 11/19/18 Public Meeting - Exelon Fleet LAR for Common Language for TS 5.7 High Radiation Areas ML18275A3712018-09-25025 September 2018 Subsequent License Renewal Environmental Scoping Meeting 9-25-18 ML18141A3072018-05-21021 May 2018 18 - SLR Status ML18054B3592018-02-27027 February 2018 Slide: NRC Pre-Submittal Meeting for Exelon Fleet LAR to Relocate TS Unit Staff Qualification ANSI Requirements to the QATR, February 27, 2018, Profile Info: Submitted by Frank Mascitelli ML18017A1172018-01-18018 January 2018 NRC PBAPS SLRA Pre-Submittal Meeting Jan 2018 PM Copy ML17320A2002017-11-15015 November 2017 Insights from Implementing FLEX in the Peach Bottom Seismic PRA Model ML17257A1612017-09-19019 September 2017 September 19, 2017 Pre-application Public Meeting Presentation on Peach Bottom Subsequent License Renewal Application ML16106A2792016-04-15015 April 2016 Meeting Slides for License Amendment Request for Measurement Uncertainty Recapture Uprate NRC Pre-Submittal Meeting April 26, 2016 ML16077A1562016-03-22022 March 2016 Fleet: Pre-application Teleconference with Exelon to Discuss a Potential License Amendment Request Regarding Operating Training Standards ML13255A3762013-09-16016 September 2013 Soarca Peach Bottom Uncertainty Analysis (UA) Acrc Briefing - Sept 2013 ML12159A2662012-06-11011 June 2012 County Generating Station Pre-Application Meeting Extended Power Uprate: Replacement Steam Dryers. June 11, 2012 ML12130A0992012-05-0909 May 2012 Annual Assessment Meeting Slides Presentation Rev. 0, 2012 ML12124A0782012-04-26026 April 2012 Power Point Presentation: Peach Bottom - Timing and Criteria for RCS Failure ML1208701402012-03-27027 March 2012 Licensee Slides for Exelon Fleet Pre-Submittal Public Meeting 4-10-12 Licensed Operator Eligibility Requirements LAR 2024-07-22
[Table view] |
Text
Digital I&C Modernization Lessons Learned
Peach Bottom Units 2 and 3 Digital Upgrade Pre-application Meeting May 14, 2024 Outline
- Tiered Review Process vs Alternate Review Process
- Multi-Disciplinary Review Team
- Virtual Audits and Open Items
- Considerations for Major Digital I&C Upgrades
2 2 Pre-Application Meetings
- Early and frequent interaction has proven to be very beneficial:
- frequent communication between the NRC and applicants promotes the submission of high quality and complete applications
- helps licensees prepare a license amendment request (LAR) that can be accepted for review
- helps the staff prepare for the review
- helps identify potential issues that may arise during the licensing review and helps identify potential solutions
3 3 Tiered Review Process vs Alternate Review Process
Tier 1 Review Process CompleteDraft SE LA Issued LAR Submitted NRC: LAR (Phase 1) and Phase 2 Review, NRC:
(Phase 1) and Regulatory Audit(s) Regional Inspections of Site Activities Licensee & Vendor Tier 1 Licensee Activity:
Producing and Submitting Phase 2 Activities Supplement Information Modification High Level System and HW/SW Implementation and Concept System Requirements, Detailed Test Activities, Post FAT Licensee and Phase 0 Design, HW/SW Design including FAT Report Activities, SAT Meeting(s) Planning and Fabrication Alternate Review CompleteDraft SE LA Issued Process NRC: VOP and NRC:
LAR Submitted NRC: LAR Review and Vendor Inspections Regional Inspections Regulatory Audit(s)of Implementation of Site Activities
& Test Activities Timeline 4
Tiered Review Process vs Alternate Review Process
- The ISG-06 Enclosure B tables identify the typical information to be submitted depending on the applicable review process
- the tables assume a model case application and do not account for deviations from the ISG-06 guidance
- Actual applications submitted under the Alternate Review Process (ARP) have elements of the Tiered Review Process
- Elements of Tier 1 if supplemental information needs to be provided
- Elements of Tier 2 if there are changes from the pre-approved topical report
- Elements of Tier 3 if there are components not previous approved by a topical report
5 5 Tiered Review Process vs Alternate Review Process (continued)
- A tailored approach to the licensing review can be considered in order to determine:
- the licensing review schedule - what is a reasonable review time (based on the complexity of the modification and information availability) and does the schedule support the installation date
- information needs - it could be a mix of ARP and Tiered information from Enclosure B (depending on the modification and the review schedule)
- information availability - what is submitted and when
- A tailored approach could provide advantages to the licensee in terms of flexibility to address licensing process deviations
- however, because a tailored approach adapts to information availability and schedule changes, the review time may take longer than an ARP review
6 6 Information Availability
- If applications are submitted before key aspects of the design are completed (e.g., system requirements), then there could be delays in responding to NRC questions
- Supplemental information submittals extend the review schedule
- equipment qualification (EQ)
- human factors engineering (HFE)
- EQ testing is often deferred to later stages of the project and EQ summary reports (EQSRs) are provided as late supplements to the LAR
7 7 Multi-Disciplinary Review Team
- A digital I&C modification encompasses various technical disciplines:
- human factors engineering
- Depending on the application, the staff responsible for these disciplines may be involved in the licensing review, the inspections, or both
- The responsible staff reviews the information necessary to make a safety determination using the review criteria found in the Standard Review Plan (SRP) for all relevant review areas
- The guidance in ISG-06 is only applicable to the digital I&C portion of the review
8 8 Virtual Audits and Open Items
- Virtual audits of undocketed material and living documents (e.g., the VOP) have proven to be very effective
- The Open Items list is a tool intended to expedite the exchange of information to provide clarifications and identify requests for additional information (RAIs)
- Providing questions (e.g., open items) to the licensee in advance of virtual audit calls improved the effective use of the audit time
- In-person audits of the vendor should be performed during the licensing review to familiarize the technical reviewers and inspectors with the system and interfaces
9 9 Virtual Audits and Open Items (continued)
- Early coordination is needed to determine how the Open Items list will be controlled and updated
- this may need to be reinforced during the review period
- Use of multiple portals (e.g., for licensee and vendor) involves further coordination
- Some licensees implement more formal internal approval processes when developing responses to open items
- this results in longer times for providing responses and delays in the closure of open items or in creating follow-up open items
- in some cases, it may be more expedient to issue an RAI without first having an open item
10 10 Considerations for Major Digital I&C Upgrades
Major upgrades require additional review considerations:
- Integration of multiple safety systems (e.g., RPS, ESFAS) into the same platform
- Reduction of plant redundancy
- Major Control Room Upgrades
- use of components not previously approved or qualified for safety (e.g., video display units)
- common-cause failures can be introduced if manual controls and automatic controls for critical safety functions are not diverse
- additional review resources may be needed (e.g., HFE)
11 11 Use of New Components
- Some applications make use of components not previously approved in a topical report or that have not undergone equipment qualification
- Some components may have been previously approved, but not for the particular design application being incorporated
- This results in additional review time, which may include the following evaluations for the new components:
- Secure development and operational environment
- Human factors engineering
12 12 Equipment Qualification
- Early identification of components requiring qualification (environmental, seismic, electromagnetic interference/radiofrequency interference) is important to meet the review schedule
- Design process and procurement issues may delay the qualification of certain components, and thus, push the submittal of equipment qualification summary reports
13 13 Vendor Oversight Plan
- A VOP Summary is provided in the LAR per ISG-06, Revision 2, Section C.2.2
- The staff performs a virtual audit of the VOP
- There may be discrepancies between the VOP and the Summary, or key information missing from the VOP Summary
- Multiple revisions of the VOP and VOP Summary may occur during the licensing review
- The staff recognizes the need for guidance for developing the VOP and VOP Summary
- The staff plans to develop guidance after completion of current licensing applications
14 14 Vendor Inspections
- Performed using inspection procedure (IP) 43002 and IP 35710
- May be performed in parallel with the licensing review
- The maturity and complexity of the design will inform the timing and frequency of vendor inspections
- Design changes may occur following completion of design and implementation phases that will require regression analysis
- Results of FAT and SAT may trigger additional design changes
- Completion of vendor IV&V activities (e.g., reports) may occur later in lifecycle phases
15 15 Regional Inspections
- Depending on document availability, some remote documentation review activities may take place after the inspectors have returned to their offices
- Because of the ARP, the NRCs inspection approach in IP 52003 adjusted from only verifying installation activities to also verifying that the system was designed, developed, and tested in accordance with the amendment
- Early and frequent communication between the NRC (regional, vendor, technical reviewers, and cyber), licensee and vendor is critical due to the dynamic aspects of the digital I&C system development
16 16 FPGA Licensing Actions
- The staff has approved the use of Field Programmable Gate Arrays (FPGAs) in DI&C applications:
- Diablo Canyon Process Protection System & Emergency Safety Features Actuation System
- License Amendment dated December 21, 2016 (ML16139A008)
- NuScale Highly Integrated Protection System Platform Topical Report
17 17 Backup Slides
18 Tiered Review Process vs Alternate Review Process
Tiered Review Process Lifecycle Activities Alternate Review Process
Pre-Application - Design Concept - Pre-Application Meetings - High-Level System Design - Meetings
Licensing Review - Detailed HW and SW Design - Licensing Review
License Amendment Request - Fabrication - License Amendment Request Regulatory Audits - Implementation - Regulatory Audits
Supplemental Information - Factory Acceptance Testing -
- Site Acceptance Testing - Vendor and Regional Regional Inspections Inspections
- Site Installation -
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