ML112280389
| ML112280389 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 08/18/2011 |
| From: | Xcel Energy |
| To: | Division of Operating Reactor Licensing |
| Wengert, Thomas | |
| References | |
| Download: ML112280389 (16) | |
Text
1 Pre-Application Meeting for Prairie Island Nuclear Generating Plant (PINGP)
Extended Power Uprate (EPU)
NRC Headquarters Rockville, MD August 18, 2011
2
Introductions
Jim Molden - Vice President of Engineering, Regulatory Affairs and Projects Tom Verbout - Manager, Prairie Island EPU and LCM Projects Scott McCall - Prairie Island Design Engineering Manager Gene Eckholt - Nuclear Projects Licensing Manager
3 Objectives
Background
Project Overview Licensing Action Interfaces License Amendment Request (LAR)
Questions/Discussion Agenda
4 Objectives Open Communications with NRC EPU Project Status Update Discuss EPU License Amendment Request Development and Content Discuss Interfaces Between EPU and other Licensing Actions Obtain NRC Feedback and Expectations
5 Background
Initial Licenses
- Unit 1 Operating License Issued August 1973
- Unit 2 Operating License Issued October 1974
- 1650 MWt Original Licensed Thermal Power (OLTP)
Renewed Operating Licenses issued in June 2011
- Unit 1 Renewed Operating License Expires August 2033
- Unit 2 Renewed Operating License Expires October 2034
6 Background
Measurement Uncertainty Recapture (MUR)
Uprate
- Implemented October 2010
- 1677 MWt Licensed Power Level
- 1683 MWt Analyzed Power Level Extended Power Uprate
- 1804 MWt Licensed Power Level (~109 % of OLTP)
- 1811 MWt Analyzed Power Level
- Unit 1 Implementation 1R29, 2014
- Unit 2 Implementation 2R29, 2015
Project Overview 2009 2010 2011 2012 2013 2014 2015
= Submittal
= NRC Approval Key:
= Implementation C26 C27 C28 C29 C28 U1 EPU 1R26 1R27 1R28 1R29 2R26 2R27 2R28 2R29 U2 EPU EPU - Phase 3 - Material Procurement EPU - Phase 4 - Modification Design EPU - Phase 5 - U1 Implementation EPU - Phase 6 - U2 Implementation EPU - Phase 7 - Project Closeout C25 C26 C27 U1 Vibration Monitoring U2 Vibration Monitoring EPU - Phase 2 - LAR Development NRC Review
8 Project Overview Major Modifications
- Main Generator Rewind (Rotor and Stator)
- Generator Step-up Transformer Replacement
- High Pressure Turbine Replacement
- Moisture Separator Reheater (MSR) Replacement
- Auxiliary Feedwater System Upgrades
- Same Basic System Design with Larger Pumps and Larger Recirculation Lines Pre-Implementation Modification
- Vibration Monitoring for Flow Induced Vibration (to be installed 1 cycle prior to EPU implementation on each unit)
9 Project Overview Project Status
- NSSS Systems
- Safety Analysis of Events Impacted by EPU Complete 3/4 Demonstrates Safety Analysis Limits are Met at EPU Conditions
- Major Components Analysis Complete 3/4 Demonstrates Components Capable of Operation at Uprated Conditions Maintaining Adequate Margins
- Methodology Changes Identified
- RAVE (Locked Rotor/Loss of RC Flow Analyses) 3/4 RAVE Methodology WCAP-16259-P-A Approved by an SER dated September 15, 2005 3/4 Will be Submitted for Plant-Specific Approval by the EPU LAR
10 Project Status
- Margin Management
- Impact of EPU on Plant Margin Being Evaluated 3/4 Overall Margin Impact of EPU Evaluated Prior to Submittal 3/4 Review Process Includes Plant Margin Review Board 3/4 Margin Impact Also Evaluated as Part of the Modification Process Project Overview
11 Project Overview Project Status
- BOP Systems
- System and Program Evaluations 95% Complete
- Auxiliary Feedwater System Modification 3/4 Preliminary Design Option Chosen
- Component Cooling Pump Impellers
- Electrical Systems Analyses
- Preliminary MISO Study Completed 3/4 Based on Assumed Prior-Queued Projects 3/4 Additional Power Assumptions Bound EPU Design 3/4 Need for Additional Capacitor Banks and Voltage Support Identified
12 Project Overview Status of LAR Development
- Licensing Report Sections
- 95% Drafted
- LAR Submittal Packages
- Under Development
13 Licensing Action Interfaces 2008 2009 2010 2011 2012 2013 2014 2015
= Submittal
= NRC Approval Key:
= Implementation C25 C26 C27 C28 C29 C25 C26 C27 C28 U1 EPU 1R25 1R26 1R27 1R28 1R29 2R25 2R26 2R27 2R28 2R29 U2 EPU U2 RSG RSG Submittals EPU - U1/U2 Spent Fuel Pool Criticality Alternative Source Term Leak Before Break NFPA-805
14 License Amendment Request EPU License Amendment Request Approach
- Content and Structure in Accordance with RS-001, Review Standard for Extended Power Uprates
- Content and structure followed closely
- PINGP is not designed to GDCs
- Applicable Operating Experience Reviewed and Considered in EPU LAR
- Continuous Process Through EPU Implementation
- Includes Review of Applicable NRC Requests for Additional Information (RAIs)
- LAR Content will be Frozen Prior to Submittal
- Necessary to Support Validation and Final Reviews
15 License Amendment Request NRC Acceptance Review Expectations
- Acceptance Review Expectations Appear to be Changing
- Recent Acceptance Review RAI
- All Structural Modifications and/or Additions Identified and Designed
- All Structural Evaluations and Required Calculations Completed
- Component Level Detailed Design Not Scheduled for Completion Prior to PINGP EPU LAR Submittal.
- Significant Impact on Schedule for Submittal of PINGP EPU LAR
- AFW System Redesign
- Piping Support Modifications
- Feedwater Isolation
16 Questions/Discussion