ML071580606

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Handout for Pre-application Meeting for Monticello Extended Power Uprate
ML071580606
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 06/05/2007
From: Weinkam E
Nuclear Management Co
To:
Office of Nuclear Reactor Regulation
References
TAC MD5531
Download: ML071580606 (23)


Text

Committed to NuclearExcellence Pre-application Meeting for Monticello Extended Power Uprate (EPU)

June 5, 2007 Committed oNularES R

Agenda Ilntroductions Objectives

Background

Project Overview License Amendment Request Power Range Neutron Monitoring System Future Plans Project Time Line Summary and Conclusions Commifted to "S=r~c~),~

2-

Objectives Discuss:

  • -Unit operational strategy

- EPU project strategy

- Submittal format

- One concurrent submittal

, Obtain NRC feedback

" Submittal format

° Concurrent submittal Ni~i~'h Committed to NudearErceil~~'

3

Background

Initial License (1970)

- 1670 MWt Original Licensed Thermal Power (OLTP)

Extended Power Uprate (1998)

- 1775 MWt (106.3% of OLTP)

- First EPU in the industry Extended Power Uprate (2009)

- Constant Pressure Power Uprate (CPPU)

- 2004 MWt (120% of OLTP)

Committed to Nuc10ar xcee 4

Unit Operational Strategy Renewed Operating License Dry Fuel Storage

.ife Cycle Management (LCM)

Extended Power Uprate-(EPU)

COMMMIOte t uerESKOr~

5

EPU Project Goals

.oals

- Maintain or improve safety and risk profile

-Improve equipment reliability NMC""%

Commitedto~dweelrFxeZeý 6

EPU Project Principles

01low existing regulatory processes Use industry operating experience C.oordinate with License Renewal and Life Cycle Management projects VMinimize the impact on day-to-day operation Extract the value from standardization, iconomies of scale, with minimal dupl COmmittdf No c--rEXS:

7

Project Organization EPU Project

-- Licensing ----------------- Manager Analyses and Engineering Operations ARaProject Liaison Liaison LANProject Manager Ccmmjfled *0 NucderEwWcer~m:.,O 8

Project Implementation 1hased power increase over two

)perating cycles:

Phase I (2009): Operate to electrical generator limits Phase 11 (2011): Upgrade the electric generator Committed to Nuclar" Os 9

Planned Phase I Modifications

'team d ryers (if required)

Power Range Neutron Monitoring System nstrumentation and setpoints Various BOP modifications to be dentified in License Amendment Request Committed to NuclearFxcte 10

Planned Phase 11 Modifications Various BOP Modifications to be identified in the License Amendment Request mMCt -

Comm~lwto/*uc/ear xc~reffeI

'-g 11

Steam Dryer Evaluations April 2007 visual inspection results satisfactory Strain gauges installed during 2007 refueling outage Steam dryer vibration monitoring using the guidance of the BWR Vessel and Internals Project (BWRVIP)

Guidance from Regulatory Guid**e*"*6 NMCim 12

Containment Overpressure Credit Durrently licensed for containment verpressure credit

.PU analysis will be consistent with "ecent BWR EPUs Comm/fled toNjerýc~te, 13

License Amendment Request 3ased on GE licensing topical report

- NEDC-33004P-A, "Constant Pressure Power Uprate Licensing Topical Report," July 2003 (CPPU or CLTR)

- No increase in maximum steam dome pressure

- Not pursuing concurrent changes specifically excluded in topical Alternate Source Term already approved

~NM C~mMI~ed to Nudear~xceIfoW 14

License Amendment Request GE plant specific Power Uprate Safety Ana lysis Report (PUSAR)

- Technical report summarizing generic or plant specific analyses for EPU

- PUSAR follows licensing topical report format Commlftdtdo NucoaEvei 15

License Amendment Request BWR EPU License Amendment Request format after RS-001

- PUSAR in licensing topical report format

- RS-001 matrices mark-up with plant licensing basis

-RS-001 safety evaluation template mark-up

- Matrix cross-referencing RS-001 to.icst PUSAR Commiftd4 oýNu"rES:ier~

16

License Amendment Request Planned NMC EPU LAR format

- PUSAR reformatted to RS-001

- Regulatory evaluation and conclusion sections of the RS-001 safety evaluation templates will be within the PUSAR

- Specific Monticello licensing bases section provided (Monticello is not a GDC plant)

- NMC intends to request exception to the I rge transient test requirements Commi-ted"toN rES 17

License Amendment Request Potential benefits of planned format

- Eliminates safety evaluation template mark-up

- Eliminates RS-O01 to PUSAR topic-cross reference

- Provides complete information for reviewer Committed te NudeSc:lr 18

Power Range Neutron Monitoring GE Standard Nuclear Measurement Analysis and Control (NUMAC) Power Range Neutron Monitoring (PRNM)

System Digital replacement for original Average Power Range Monitor (APRM) equipment Includes the stability Option III Oscillation Power Range Monitor (OPRM) (

Co,ýMmffed to Nuda"srer-19

Power Range Neutron Monitoring Stability Option III OPRM trip capabilities

-SER for NEDC-3241 OP-A:

  • OPRM function monitored for one cycle with trips deactivated
  • Based on lack of industry experience
  • -NMC plans to activate OPRM trip capabilities at start up from March 2009 outage Precedent exists for activating OPRM trip functions at first startup Co*
  • mmJtd l20
  • .... . .. . . . .. ... .. .. . .. . . . "*2 0

Future Plans Submittals following EPU approval:

- Maximum Extended Load Line Limit Analysis Plus (MELLLA+)

  • GE Topical in NRC review

- Detect and Suppress Solution - Confirmation Density (DSS-CD)

° GE Topical approved November 2006 commite t "udeR-x~~

I 21

Project Time Line M007 2008 2009 2010 2011 I Monitoring FIV FIV ods for EPU Monitoring Monitoring V Submittal NRC Approval 4RC Review of PRNMS

& Stability Option III V Submittal VNRC

. Approval V Submittal 14NRC DSS-CD Stability NRC Review Approval Solution LAR Prep V Submittal 14¥NRC Approval MELLLA+ LAR NRC Review A EPU Phase I & PRNMS Installation A EPU Phase 11

~mentation

Summary and Conclusions EPU Strategy

- PRNMS submittal last quarter 2007 EPU submittal first quarter 2008 RS-O01 Format

- Implementation in two phases (2009, 2011)

Duestions/Discussion Committed to Nuderr sm 23