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Category:Meeting Summary
MONTHYEARML23157A3202023-06-26026 June 2023
Summary of April 26, 2023, Meeting with Duke Energy to Discuss a Shearon Harris Nuclear Power Plant, Unit 1 Planned License Amendment Request Related to Turbine Control System and Reactor Protection System Circuitry
ML23151A1232023-05-31031 May 2023
Public Meeting Summary - 2022 Annual Assessment Meeting Regarding Shearon Harris Nuclear Plant
ML22167A1852022-06-30030 June 2022
Summary of June 6, 2022, Meeting with Duke Energy to Discuss Shearon Harris Nuclear Power Plant, Unit 1 Closeout of Generic Safety Issue (GSI) 191
ML22129A0062022-05-10010 May 2022
Summary of April 20, 2022, Meeting with Duke Energy Progress, LLC, to Discuss Proposed License Amendment Request to Revise Reactor Coolant System Pressure Isolation Valve Operational Leakage Surveillance Requirement Frequency (L-2022-LRM 00
ML22130A0302022-05-0909 May 2022
Summary of Public Meeting on 2021 Annual Assessment Meeting Regarding Brunswick Steam Electric Plant, Docket Nos. 50-325 and 50-324; and Shearon Harris Nuclear Power Plant, Docket No. 50-400, Meeting Number 20220350
ML21341A5542021-12-29029 December 2021
Summary of November 29, 2021, Meeting with Duke Energy Progress, LLC and Duke Energy Carolinas, LLC to Discuss a Planned License Amendment Request to Relocate
ML21172A2672021-08-13013 August 2021
Regulatory Audit Summary Related to the Review of LAR to Revise 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors, Categorization Process to Reflect an Alternative Seis
ML21131A1472021-05-11011 May 2021
Public Meeting Summary 2020 Annual Assessment Meeting Regarding Brunswick Steam Electric Plant, Docket Nos. 50-325 and 50-324; and Shearon Harris Nuclear Power Plant, Docket No. 50-400, Meeting Number 20210385
ML20136A2222020-05-15015 May 2020
Har - Bru 2019 Aam Meeting Summary
ML19331A8062020-01-29029 January 2020
Summary of November 13, 2019 Closed Meeting with Duke Energy Carolinas, LLC and Duke Energy Progress, LLC, to Discuss Security-Related Information for Its Licensed Facilities
ML19329A0232019-11-27027 November 2019
Summary of October 29, 2019 Conference Call with Duke Energy Progress, LLC Regarding the Fall 2019 Steam Generator Tube Inspections
ML19241A2902019-09-24024 September 2019
Summary of August 22, 2019, Meeting with Duke Energy Progress, LLC Proposed License Amendment Request to Adopt Risk-Informed Completion Times
ML19220A6702019-08-26026 August 2019
Summary of August 7, 2019, Meeting with Duke Energy Progress, LLC and Duke Energy Carolinas, LLC to Discuss a Proposed License Amendment Request for a Common Emergency Plan
ML19113A0652019-05-14014 May 2019
Summary of Meeting with Duke Energy to Discuss Proposed License Amendment Request for Shearon Harris, Unit 1, Technical Specification Changes Associated with Departure from Nucleate Boiling Ratio Safety Limit
ML19120A1342019-05-0606 May 2019
3/15/19 Summary of Public Meeting with Nuclear Entergy Institute, Duke Energy, and Southern Nuclear Operating Company Post-Pilot Implementation of Tornado Missile Risk Evaluator Methodology at Vogtle, Units 1 and 2 and Shearon Harris, Unit
ML19123A3522019-05-0202 May 2019
Public Meeting Summary - Shearon Harris Nuclear Plant, Docket No. 50-400
ML19087A0622019-04-11011 April 2019
Summary of March 25, 2019, Public Teleconference with Duke Energy to Discuss the Request for Additional Information Response Regarding the Proposed Alternative to the Depth Sizing Qualification Requirement (Duke Energy Fleet Relief Request
ML18361A6712019-01-0808 January 2019
Summary of Meeting with Duke Energy Progress, LLC to Discuss License Amendment Request for Shearon Harris Unit 1, Regarding 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures,
ML18352A3572019-01-0808 January 2019
Summary of Meeting with Duke Energy Progress, LLC to Discuss Proposed License Amendment Request for Shearon Harris Nuclear Power Plant, Unit 1, Regarding Emergency Plan Changes
ML18355A8142019-01-0707 January 2019
Summary of December 20, 2018, Teleconference Meeting with Duke Energy Progress, LLC to Discuss a Proposed License Amendment Request for Shearon Harris Unit 1, Regarding a Risk-Informed Essential Services Chilled Water System TS
ML18094A2632018-08-17017 August 2018
Summary of 01/18/2018, Public Meeting with Nuclear Energy Institute, Duke Energy, Southern Nuclear Operating Co., Entergy Operations, Inc. to Discuss Development of Tornado Missile Risk Evaluator Methodology
ML18109A0912018-04-19019 April 2018
Summary of 2017 Annual Assessment Public Meeting Regarding Shearon Harris Nuclear Plant, Docket No. 50-400
ML18088A0732018-04-0303 April 2018
March 27, 2018, Summary of Presubmittal Meeting with Duke Energy Progress, LLC to Discuss a Proposed Relief Request for Shearon Harris Nuclear Power Plant, Unit 1
ML18064A1332018-03-19019 March 2018
Summary of February 27, 2018, Meeting with Duke Energy Progress, LLC to Discuss Proposed License Amendment Request for Shearon Harris Nuclear Power Plant, Unit 1, Regarding Emergency Plan Emergency Action Level Scheme Changes (L-2017-LRM-00
ML17340A1302017-12-22022 December 2017
Summary of November 29, 2017, Meeting with Duke Energy Progress, LLC to Discuss Proposed License Amendment Requests to Implement the Requirement of 10 CFR 50.69 at Brunswick, Shearon Harris, and H. B. Robinson
ML17340A0612017-12-0808 December 2017
11/8/17 Summary of Teleconference with Entergy Operations, Inc., Tornado Missile Risk Evaluator with Applicability to Submittals from Duke Energy and Southern Nuclear Operating Co, Inc.
ML17244A0742017-09-28028 September 2017
8/17/2017 Summary of Public Meeting with Nuclear Energy Institute and Licensees to Discuss the Tornado Missile Risk Evaluation Tool for Grand Gulf, Shearon Harris, and Vogtle, Units 1 and 2
ML17257A0992017-09-26026 September 2017
Summary of Public Meeting with Nuclear Energy Institute and Licensees to Discuss the Tornado Missile Risk Evaluation Tool for Grand Gulf, Shearon Harris, and Vogtle, Units 1 and 2
ML17223A1212017-08-17017 August 2017
Summary of August 3, 2017, Meeting with Duke Energy Progress, LLC on Proposed License Amendment Request to Implement Fuel Reload Design Methodology Reports for Shearon Harris and H. B. Robinson
ML17145A3142017-05-25025 May 2017
EOC Meeting Summary
ML16286A0152016-11-0101 November 2016
Summary Of September 29, 2016, Duke Energy Progress, LLC. To Discuss Proposed License Amendment Request Regarding Shearon Harris Nuclear Power Plant, Unit 1, BWR Storage Rack Inserts And The Spent Fuel Pool Criticality Analysis (CAC No. MF8327)
ML16235A2382016-10-17017 October 2016
Summary of the July 12-13, 2016 Audit Supporting the U.S. Nuclear Regulatory Commission Review of DPC-NE-1008-P, Nuclear Design Methodology Using CASMO-5/SIMULATE-3 for Westinghouse Reactors
ML16125A0992016-05-20020 May 2016
Summary of May 2, 2016, Meeting with Duke Energy Progress, Inc. to Discuss Fuel Reload Design Methodology Reports and Proposed Supplement to a License Amendment Request Regarding Shearon Harris and H.B. Robinson
ML16134A1552016-05-12012 May 2016
Public Meeting Summary - 2015 Annual Assessment Public Meeting Regarding Shearon Harris Nuclear Plant
ML16112A3772016-04-25025 April 2016
Summary of Meeting with Duke Energy Progress, Inc. to Discuss the Shearon Harris Nuclear Plant, Unit 1, TSTF-425 LAR Request for Additional Information Reponses
ML16034A5242016-03-11011 March 2016
Summary of February 1, 2016, Pre-submittal Meeting with Duke Energy Regarding Consolidation of Emergency Operations Facilities
ML16035A4802016-02-12012 February 2016
Jsc Meeting Summary Attachment
ML15280A2532015-11-25025 November 2015
Summary of Mtg. with Duke Energy Progress Inc. to Discuss Fuel Reload Design Methodology Reports & Proposed License Amendment Request Shearon Harris Nuclear Power Plant Unit 1 and H.B. Robinson Steam Electric Plant Unit No. 2 (MF6701/MF6702
ML15202A4752015-09-24024 September 2015
Summary of Meeting with Duke Energy Progress, Inc. to Discuss Shearon Harris Nuclear Power Plant, Unit 1, Proposed License Amendment Request Regarding Technical Specifications for the Pressurizer and Main Steam Line Safety Valves (MF6233)
ML14129A3352014-05-0909 May 2014
Summary of Category 1 Public Meeting - Annual Assessment of Shearon Harris Nuclear Plant
ML13312A9882013-11-0808 November 2013
Summary of Public Meeting with Duke Energy Carolinas, LLC, to Provide Opportunities to Discuss the Planned Fukushima-Related Modifications
ML13204A2672013-09-27027 September 2013
07/09/13 Summary of Meeting with Duke Energy Regarding a Nonconservative Technical Specification Loss of Offsite Power Voltage Setpoint License Amendment Request
ML13218B3692013-09-27027 September 2013
7/30/2013 - Summary of Meeting with Duke Energy Regarding a Change to the Emergency Response Facility Activation Timeliness and Criteria
ML13225A2932013-08-12012 August 2013
7/23-24/2013, Summary of Meeting 2013 U.S. Nuclear Regulatory Commission (NRC) Initial Exam Writers' Workshop
ML13171A3292013-06-20020 June 2013
Public Meeting Summary, Category 3, NRC Special Inspection on Reactor Vessel Head Nozzle Repair of Shearon Harris Nuclear Plant
ML13155A1052013-06-12012 June 2013
May 2, 2013, Summary of Meeting with Duke Energy Concerning the Relocation of the Emergency Operating Facilities
ML13151A2262013-05-30030 May 2013
Meeting Summary - Category 1 Public Meeting Annual Assessment - Shearon Harris Nuclear Plant - Docket 50-400
ML12277A0252012-11-0202 November 2012
10/2/12 Summary of Meeting with Duke Energy Carolinas to Discuss Nonconservative Technical Specifications License Amendment Requests
ML12242A4322012-08-28028 August 2012
Summary of Category 1 Public Meeting - Regulatory Conference and Predecisional Enforcement Conference
ML12107A0012012-04-16016 April 2012
Meeting Summary - Category 1 Public Meeting - Annual Assessment of Shearon Harris Nuclear Plant
2023-06-26
[Table view] |
Text
June 26, 2023 LICENSEE: Duke Energy FACILITIES: Shearon Harris Nuclear Power Plant, Unit 1
SUBJECT:
SUMMARY
OF APRIL 26, 2023, MEETING WITH DUKE ENERGY TO DISCUSS A SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 PLANNED LICENSE AMENDMENT REQUEST RELATED TO TURBINE CONTROL SYSTEM AND REACTOR PROTECTION SYSTEM CIRCUITRY (EPID NO. L-2023-LRM-0027)
On April 26, 2023, a virtual observation public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Duke Energy (Duke, the licensee). The purpose of the meeting was to discuss a planned license amendment request (or LAR) to be submitted Under Risk-Informed Process for Evaluations (RIPE) related to Turbine Control System (TCS) and Reactor Protection System (RPS) circuitry for the Shearon Harris Nuclear Power Plant, Unit 1 (Harris). The meeting notice and agenda, dated April 13, 2023, are available in the Agencywide Documents Access and Management System (ADAMS) Accession No. ML23103A036. A list of attendees is provided in the enclosure.
The licensee presented (ML23114A067) and discussed the following:
Description of the issue o Licensee received a green non-cited violation:
Performance deficiency - failure to ensure independence between the TCS circuits and trains of RPS circuits.
System Design and Operation:
o RPS - generates signals that acuate a reactor trip.
o Engineered Safety Features Actuation System (ESFAS) - generates signals that actuate engineered safety features.
o TCS - non-safety related, controls valve position, speed and/or load of turbine.
Current Licensing Basis:
o Updated Final Safety Analysis Report (UFSAR), Section 8.3.1.2.30 - Cables and conduits routed in non-Category I structures associated with safety related functions or anticipatory trips (i.e., turbine trip on reactor trip, reactor trip on turbine trip, loss of feedwater) are designed to meet Institute of Electrical and Electronics Engineers (IEEE)-Standard 279-1971 including redundancy, separation, and single failure criteria
Application of RIPE Process:
o Applicable guidance documents.
o RIPE Process Criteria:
Technically acceptable Probabilistic Risk Assessment (PRA):
TSTF-505.
Integrated Decision-Making Panel (IDP).
Implementation of Title 10 of the Code of Federal Regulations (10 CFR) 50.69.
o PRA Analysis PRA Model Consistent with model utilized for Risk-Informed Completion Time (RICT) Program.
Includes high winds hazard.
Does not quantitively asses seismic or external flooding hazards.
based on meeting screening criteria.
Strategy Quantitative Risk Assessment to calculate change in core damage frequency (CDF) and large early release frequency (LERF).
Single basic event to reflect a potential common cause event for the functions susceptible to impacts of the current circuitry configuration.
Hot short within the portion of the RPS and SSPS [Solid State Protection System] circuitry in proximity to the TCS circuitry is the surrogate failure mode.
The targets of interest from which to assess potential impacts to the associated cables are selected to be the 48 Volt SSPS power supplies utilized for the SSPS cabinets.
PRA Results meet the RIPE criteria for minimal safety impact.
NRC staff discussed the following:
Question on the power supply and electrical connections of the TTS (TCS) and RPS.
What would a hot short lead to?
Are both reactor trip on turbine trip and turbine trip on reactor trip anticipatory?
o Is the risk of both trips considered in the PRA model?
Has an IDP been performed?
How will defense-in-depth, safety margin, and performance monitoring, be addressed?
How was the probability determined?
o What is the basis for the creation of basic event?
What is the importance of the 48V power supply in the PRA model?
What would PRA numbers look like if not crediting manual actions or automatic diverse means?
There is a statement on slide 5 of the licensee presentation that IEEE 279-1971 does not apply from actuating device to TCS.
o Is this a statement that Duke is looking for the NRC to approve (and make conforming changes)?
What is the relation between the low-risk numbers and where the IEEE separation begins and ends?
How is safety function maintained with what remains of RPS, once failures postulated?
Is the licensee in compliance with IEEE 279-1971 in current design basis, but UFSAR conflicts?
Staff discussed the other licensing options, such as an exemption or alternative/relief from 10 CFR 50.55a.
There were seven members of the public in attendance.
There was one question from a member of the public related to if the licensee submits an exemption, should defense-in-depth and safety margins still be considered. The staff responded that the RIPE guidance has five questions that should be considered (which include deterministic aspects, such as defense-in-depth and safety margins).
Please direct any inquiries to me at 301-415-3867, or Michael.Mahoney@nrc.gov.
Sincerely,
/RA/
Michael Mahoney, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-400
Enclosure:
List of Attendees cc: Listserv
LIST OF ATTENDEES APRIL 26, 2023, PUBLIC MEETING WITH FLORIDA POWER AND LIGHT/NEXTERA SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 PLANNED LICENSE AMENDMENT REQUEST RELATED TO TURBINE CONTROL SYSTEM AND REACTOR PROTECTION SYSTEM CIRCUITRY TO BE SUBMITTED UNDER THE RISK-INFORMED PROCESS FOR EVALUATIONS Name Organization Michael Mahoney U.S. Nuclear Regulatory Commission (NRC)
John Hughey NRC Michelle Kickline NRC Ming Li NRC David Wrona NRC Micheal Waters NRC Antonios Zoulis NRC Matthew Fannon NRC Adam Wilson NRC Peter Boguszewski NRC Casey Smith NRC Meena Khanna NRC Eben Allen NRC Richard Stattel NRC Ed Miller NRC Dennis Earp Duke Energy (Duke)
Andrew Lipetzky Duke Heather Szews Duke Brian Mayall Duke Ryan Treadway Duke Jordan Vaughn Duke Nick Martenelli Duke Brett Titus Public - NEI Andrew Mauer Public - NEI Maria Zamber Public - Entergy (Waterford)
Tony Brown Public Jarrett Mack Public - FPL Bradley Dolan Public Andrea Maioli Public Enclosure
Package: ML23157A319 Meeting Notice: ML23103A036 Meeting Summary: ML23157A320 NRC-001 OFFICE NRR/DORL/LPL2-2/PM NRR/DORL/LPL2-2/LA NRR/DORL/LPL2-2/BC NAME MMahoney RButler DWrona DATE 06/26/2023 06/20/2023 06/26/2023
