ML12338A006

November 20, 2012, Summary of Public Meeting with Northern States Power Company of Minnesota to Discuss the Extended Power Uprate Gap Analysis

ML12338A006
Person / Time
Site:	Monticello
Issue date:	12/13/2012
From:	Beltz T Plant Licensing Branch III
To:
Beltz T
Shared Package
ML12338A007	List: ML12338A006
References
TAC MD9990
Download: ML12338A006 (8)

Text

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LICENSEE: Northern States Power Company of Minnesota FACILITY: Monticello Nuclear Generating Plant

SUMMARY

OF THE NOVEMBER 20, 2012, PUBLIC MEETING WITH NORTHERN STATES POWER COMPANY OF MINNESOTA TO DISCUSS THE EXTENDED POWER UPRATE GAP ANALYSIS (TAC NO. MD9990)

On November 20, 2012, the U.S. Nuclear Regulatory Commission (NRC) staff held a Category 1 public meeting with representatives of Northern States Power Company of Minnesota, doing business as Xcel Energy, at NRC headquarters. The purpose of the meeting was for the licensee to present the results of its extended power uprate (EPU) gap analysis. The gap analysis identifies changes to information previously submitted to the NRC in the EPU license amendment request (LAR) application and supplements. The enclosure to this summary contains the list of participants.

The licensee introduced its EPU gap analysis in a slide presentation (docketed at Agencywide Documents Access and Management System (ADAMS) Accession No. ML12335A173). The presentation summarized the history and current status of the Monticello EPU review, and provided the methodology for how the gap analysis results were identified and dispositioned.

The focus of the meeting was a discussion of the gap analysis results, which Xcel Energy summarized in a table (docketed at ADAMS Accession No. ML12335A176). The NRC staff questioned the licensee on various aspects of the table and provided the following comments listed below:

Topic NRC Staff Comment(s) on Proposed Disposition

• Identify the ten MOVs Motor-Operated Valves

• Identify the impact on functional performance (MOVs)

• Discuss compliance with generic guidance

• Discuss remaining in compliance with 10 CFR 50 .55(a)

Grid Stability

• Staff requests MISO [Midwest Independent Transmission Assessment System Operator] letter be provided for review Environmental

• Staff requests a discussion of the changes and to provide Qualification (EQ) validation of EQ parameters Battery Capacity

• No specific comments

-2 Topic NRC Staff Comment(s) on Proposed Disposition

• Staff understands that General Electric - Hitachi (GEH) is working on revising this calculation related to possible Main Steam Line High changes to choke flow rates Flow Trip

• Staff requests changes, when available, to be submitted for review

• Staff indicates a potential for follow-up discussions

• As long as changes are administrative in nature (i.e.,

results of calculations are unaffected), a brief description of Changes to Calculations the changes submitted on the docket should be sufficient

• If set point values are affected, then the staff requests the updated calculation be submitted for review Steam Dryer

• No specific comments Reactor Water Cleanup Impact on Reactor Water

• Staff requests that information related to change be submitted for review Quality EPU LAR for Pressure-Temperature Limits

• No specific comments Re~ort LAR

• Staff requests verification that offsite dose still meets the limits of 40 CFR 190 with the addition of hydrogen water Noble Metals chemistry and noble metal injection Modification

• Licensee informed that there may be follow-up requests for additional information from NRC staff Abnormal Operating Procedure (AOP)

• Staff requests information regarding the AOP change if the turbine backpressure limit is changed Change Energy Core Cooling System (ECCS) Pump

• No specific comments Flow Rates Residual Heat Removal Core Spray Pump Room Post-Loss-of-Coolant

• No specific comments Accident Heatup Final Feedwater

• Staff commented on how GEH evaluated the effect of the Temperature change

TODic NRC Staff Comment(s) on Proposed Disposition Piping Components

• Staff indicates that the change needs to be submitted and Requiring Further placed on the docket Analysis

• Staff indicates that the change needs to be submitted and placed on the docket Alternative Source Term

• Describe the changes from the previous submittals

• Discuss if the changes are still bounding

• This will allow the staff to perform confirmatory calculations Condenser Free Volume

• Staff requests a table summarizing what changed and the assumptions being made Technical Support

• Staff requests a table summarizing what changed and the Center Dose Calc assumptions being made

• Staff indicates that the change needs to be submitted and placed on the docket Risk Assessment

• Staff requests a qualitative summary as to the change in Core Damage Frequency and Large Early Release Frequency Computer Codes Used

• No specific comments High-Energy Line Break

• No specific comments Turbine Bypass Valve Capacity

• No specific comments

• Staff requests that the current licensing basis be clearly defined Appendix R

• Clarification of the current requirement for 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> to

200°F

• Note: NRC fire protection staff requested validation of any changes impacting the fire protection analyses Containment Accident Pressure Review of Appendix R

• No specific comments

-4 Togic NRC Staff Comment(s) on Proposed Disposition Reactor Head Spray Nozzle Fatigue

• No specific comments Assessment Emergency Operating Plan (EOP) Flow Chart for Anticipated Transfer

• Staff requests a copy of the EOP flowchart for ATWS Without Scram (ATWS)

Avoidance of Trip of Both Reactor Feed Pumps on

• No specific comments, other than the staff will want to know if there is a commitment change Transients

• Staff indicates that information of what was reviewed to reach the conclusion that there are on impacts to the EA Environmental needs to be submitted and placed on the docket Assessment (EA)

• Staff recommends that the applicant refer to 10 CFR 50.92 when submitting changes list of Modifications

• No specific comments Required

• Provide a supplemental reload licensing report

• Provide an ECCS evaluation

• Staff requests a detailed discussion of changes to electrical equipment loading and capacities since the last submittal, Other NRC Staff including diesel generators Requests

• If Part 21 related to loss of stator cooling affects rvlNGP, provide an analytical assessment

• Staff requests review of RIS 2008-30 for applicability to MGNP Members of the public participated by telephone. No portion of this meeting was closed to the public because no proprietary information or security-related information was discussed by the participants. Before the meeting adjourned, all participants were given the opportunity to comment on any aspects of the meeting. No comment or feedback was provided.

- 5 Please direct any inquiries to me at 301-415-3049 or e-mail terry.beltz@nrc.gov.

~ ~--

Terry A. Beltz, Senior Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket 1\10. 50-263

Enclosure:

List of Participants cc w/encl: Distribution via ListServ

LIST OF PARTICIPANTS MEETING BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND NORTHERN STATES POWER COMPANY OF MINNESOTA MONTICELLO NUCLEAR GENERATING PLANT EXTENDED POWER UPRATE GAP ANALYSIS PRESENTATION NOVEMBER 20,2012 NAME ORGANIZATION Briana Balsam f\I RC/NRR/DLR/RERB Chakrapani Basavaratu N RC/NRR/DE/EMCB Terry Beltz NRC/NRR/DORLlLPL3-1 William Bentley ** TVA Joel Beres IVlNGP John Bjorseth Xcel Energy Kevin Borton Exelon Robert Carlson N RC/N RR/DORLlLPL3-1 William Cheever ** MNGP Nicholas DiFrancesco N RC/N RR/DORLlLPL3-2 DyLanne Duvigneaud NRC/NRR/DRNAADB Gene Eckholt Xcel Energy Steve Frankl NRC/RES/DSNRSAB Peter Glass ** Xcel Energy Steve Hammer ** MNGP Nathan Haskell Xcel Energy Denzel Housley ** TVA Naeem Iqbal NRC/NRR/DRNAFPB Chris Jackson NRC/NRR/DSS/SRXB William Jessup N RC/NRRIDE/EMCB Steve Jones NRC/f\lRR/DSS/SBPB Aziz Khanifar Xcel Energy Michelle Kichline NRC/NRR/DRNAADB Jeff Kitsembel ** State of Wisconsin George Lapinsky ** NRC/NRRIDRNAHPB Nancy Martinez NRC/NRR/DLR/RERB Matthew McConnell NRC/NRR/DE/EEEB Tony McMurtray NRC/NRR/DE/EPTB Tim Mossman NRC/NRR/DE/EICB Marty Murphy I\JRC/NRR/DE/EMCB Ivy Netzel ** Performance Power Systems Aloysius Obodoako NRC/NRR/DE/ESGB John Osborne ** TVA (Browns Ferry)

Ben Parks ** N RC/N RR/DSS/SRXB Jigar Patel NRC/NRR/DRNAPLA Enclosure

LIST OF PARTICIPANTS (continued)

NAME ORGANIZATION Roger Pedersen NRC/NRRIDRAlAHPB Dave Pennington ** MNGP Ahsan Sallman NRCIt\! R RIDSS/SCVB Travis Tate I'J RC/NRRIDRAIMDB Jeff Tollefson ** MNGP Alexander Tsirigotis NRC/NRRIDE/EMCB

• • Participated by telephone Acronyms for List of Participants MDB Accident Dose Branch AFPB Fire Protection Branch AHPB Health Physics & Human Performance Branch APLA PRA Licensing Branch DE Division of Engineering DLR Division of License Renewal DORL Division of Operating Reactor Licensing DRA Division of Risk Assessment DSS Division of Safety Systems EEEB Electrical Engineering Branch EICB Instrumentation and Controls Branch EMCB Mechanical & Civil Engineering Branch ESGB Steam Generator Tube Integrity & Chemical Engineering Branch EPTB Component Performance & Testing Branch LPL3-1 Plant Licensing Branch 111-1 LPL3-2 Plant Licensing Branch 111-2 rvlNGP Monticello Nuclear Generating Plant NRC U.S. Nuclear Regulatory Commission NRR Office of Nuclear Reactor Regulation RERB Environmental Review & Guidance Update Branch RES Office of Nuclear Research SBPB Balance-of-Plant Branch SCVB Containment and Ventilation Branch SRXB Reactor Systems Branch TVA Tennessee Valley Authority 2

-5 Please direct any inquiries to me at 301-415-3049 or e-mail terry.beltz@nrc.gov.

Terry A. Beltz, Senior Project Manager IRAJ Plant Licensing Branch" 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-263

Enclosure:

List of Participants cc w/encl : Distribution via ListServ DISTRIBUTION :

PUBLIC LPL3-1 R/F BBalsam, NRR MMcConnell, NRR RidsAcrsAcnw_MailCTR Resource CBasavaratu, NRR AMcMurtray, NRR RidsNrrDorlLpl3-1 Resource DDuvigneaud , NRR TMossman, NRR RidsNrrLASRohrer Resource Nlqbal, NRR MMurphy, NRR RidsNrrPMMonticelio Resource CJackson, NRR AObodoako, NRR RidsRgn3MailCenter Resource WJessup, NRR BParks, NRR RidsOgcRp Resource SJones, NRR JPatel, NRR TWertz, NRR MKichline, NRR ASallman, NRR TSantos, EDO Region 3 GLapinsky, NRR TTate, NRR NMartinez, NRR ATsirigotis, NRR Package: ML12338A007 Meeting Notice: ML12311A334 Meeting Summary: ML12338A006 EPU Gap Analysis Results Presentation Slides: ML12335A173 EPU Ga~ Analysis - Details of Differences with NRCC orrespondence: ML12335A176 OFFICE LPL3-1/PM LPL3-1/LAit LPL3-2/LA LPL3-1/BC LPL3-1/PM NAME TBeltz ELee SRohrer RCarlson TBeltz DATE 12/12/12 12/12/12 12/12/12 12/13/12 12/13/12 OFFICIAL RECORD COpy