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{{#Wiki_filter:NextEra Approach to Resolution of Tornado Missile Protection Point Beach Nuclear Plant Units 1 & 2 May 1, 2018 2 AGENDA*Introductions
{{#Wiki_filter:NextEra Approach to Resolution of Tornado Missile Protection Point Beach Nuclear Plant Units 1 & 2 May 1, 2018
*Current Status
 
*Compensatory Measures
AGENDA
*Resolution Strategy
* Introductions
*Conclusion 3 INTRODUCTIONS
* Current Status
*NRC*NextEra Point Beach Team-Steve Catron, Fleet Licensing Manager-Anil Julka, Reliability & Risk Manager
* Compensatory Measures
-Eric Schultz, PB Licensing Manager
* Resolution Strategy
-Lori Christensen, PB Licensing Project Manager
* Conclusion 2
*3 4CURRENT STATUS
 
*Background
INTRODUCTIONS
*Initial Nonconformance Declaration (U1 & U2)-Turbine Driven Auxiliary Feedwater Pumps (TDAFPs) for unprotected steam supply piping
* NRC
*Extent of Condition (U1 & U2)-TDAFPs for unprotected turbine exhaust stacks-Main Steam Isolation Valves, Main Steam Safety Valves, Atmospheric Dump Valves-Emergency Diesel Generator (EDG) Fuel Oil Storage Tank T-175B*4Station implemented enforcement discretion guidance documentsEGM 15-002 and DSS-ISG-2016-01 5 COMPENSATORY MEASURES
* NextEra Point Beach Team
*Immediate Compensatory Measures-Per DSS-ISG-2016-01 guidance
    - Steve Catron, Fleet Licensing Manager
*Comprehensive Compensatory Measures-Procedurally controlled measures-FLEX equipment sharing
    - Anil Julka, Reliability & Risk Manager
*Other Discernable Changes from Original Station Design-FLEX implementation-Station modifications (design basis and beyond design basis)
    - Eric Schultz, PB Licensing Manager
*5Compensatory measures in place; original station design improved over time and enhanced ability to mitigate a tornado missile event 6 RESOLUTION STRATEGY
    - Lori Christensen, PB Licensing Project Manager
*The resolution strategy is to validate that Tornado Missile is not a significant hazard for the site-LAR submittal and approval will clear nonconformances
                                                      *3 3
*Options Considered for LAR Development-TMRE (Point Beach was a pilot plant)-Site-specific High Winds PRA (RG 1.200, Rev. 2)
 
*Selected Option -Site-specific High Winds PRA (RG 1.200, Rev. 2)
CURRENT STATUS
*6License Amendment Request will screen out tornado missile as a significant hazard for the site 7 RESOLUTION STRATEGY
* Background
*Site-specific High Winds PRA-Industry leader-Developed in 2013Updated to reflect as-built/as-operated plant
* Initial Nonconformance Declaration (U1 & U2)
*7Site-specific High Winds PRA is peer-reviewed to ASME Standard and Regulatory Guide 1.200, Revision 2 8 CONCLUSION
    - Turbine Driven Auxiliary Feedwater Pumps (TDAFPs) for unprotected steam supply piping
*Entered Enforcement Discretion Process per EGM 2015-002
* Extent of Condition (U1 & U2)
*License Amendment Request submittal based on Site-Specific High Winds PRA-Site PRA concludes Tornado Missile is below the regulatory threshold in the Standard Review Plan and screens out as a significant hazard
    - TDAFPs for unprotected turbine exhaust stacks
*Plan to submit LAR in second half of 2018
    - Main Steam Isolation Valves, Main Steam Safety Valves, Atmospheric Dump Valves
*8License Amendment Request will screen out tornado missile as a significant hazard for the site}}
    - Emergency Diesel Generator (EDG) Fuel Oil Storage Tank T-175B Station implemented enforcement discretion guidance documents EGM 15-002 and DSS-ISG-2016-01
                                                                    *4 4
 
COMPENSATORY MEASURES
* Immediate Compensatory Measures
      - Per DSS-ISG-2016-01 guidance
* Comprehensive Compensatory Measures
      - Procedurally controlled measures
      - FLEX equipment sharing
* Other Discernable Changes from Original Station Design
      - FLEX implementation
      - Station modifications (design basis and beyond design basis)
Compensatory measures in place; original station design improved over time and enhanced ability to mitigate a tornado missile event
                                                                            *5 5
 
RESOLUTION STRATEGY
* The resolution strategy is to validate that Tornado Missile is not a significant hazard for the site
      - LAR submittal and approval will clear nonconformances
* Options Considered for LAR Development
      - TMRE (Point Beach was a pilot plant)
      - Site-specific High Winds PRA (RG 1.200, Rev. 2)
* Selected Option
      - Site-specific High Winds PRA (RG 1.200, Rev. 2)
License Amendment Request will screen out tornado missile as a significant hazard for the site
                                                                              *6 6
 
RESOLUTION STRATEGY
* Site-specific High Winds PRA
    - Industry leader
    - Developed in 2013 Updated to reflect as-built/as-operated plant Site-specific High Winds PRA is peer-reviewed to ASME Standard and Regulatory Guide 1.200, Revision 2
                                                                      *7 7
 
CONCLUSION
* Entered Enforcement Discretion Process per EGM 2015-002
* License Amendment Request submittal based on Site-Specific High Winds PRA
      - Site PRA concludes Tornado Missile is below the regulatory threshold in the Standard Review Plan and screens out as a significant hazard
* Plan to submit LAR in second half of 2018 License Amendment Request will screen out tornado missile as a significant hazard for the site
                                                                              *8 8}}

Latest revision as of 07:35, 21 October 2019

NextEra Approach to Resolution of Tornado Missile Protection May 1, 2018
ML18108A015
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 05/01/2018
From:
Point Beach
To:
Division of Operating Reactor Licensing
Chawla M, NRR/DORL/LPLIII, 415-8371
References
Download: ML18108A015 (8)


Text

NextEra Approach to Resolution of Tornado Missile Protection Point Beach Nuclear Plant Units 1 & 2 May 1, 2018

AGENDA

  • Introductions
  • Current Status
  • Compensatory Measures
  • Resolution Strategy
  • Conclusion 2

INTRODUCTIONS

  • NRC
  • NextEra Point Beach Team

- Steve Catron, Fleet Licensing Manager

- Anil Julka, Reliability & Risk Manager

- Eric Schultz, PB Licensing Manager

- Lori Christensen, PB Licensing Project Manager

  • 3 3

CURRENT STATUS

  • Background
  • Initial Nonconformance Declaration (U1 & U2)

- Turbine Driven Auxiliary Feedwater Pumps (TDAFPs) for unprotected steam supply piping

  • Extent of Condition (U1 & U2)

- TDAFPs for unprotected turbine exhaust stacks

- Main Steam Isolation Valves, Main Steam Safety Valves, Atmospheric Dump Valves

- Emergency Diesel Generator (EDG) Fuel Oil Storage Tank T-175B Station implemented enforcement discretion guidance documents EGM 15-002 and DSS-ISG-2016-01

  • 4 4

COMPENSATORY MEASURES

  • Immediate Compensatory Measures

- Per DSS-ISG-2016-01 guidance

  • Comprehensive Compensatory Measures

- Procedurally controlled measures

- FLEX equipment sharing

  • Other Discernable Changes from Original Station Design

- FLEX implementation

- Station modifications (design basis and beyond design basis)

Compensatory measures in place; original station design improved over time and enhanced ability to mitigate a tornado missile event

  • 5 5

RESOLUTION STRATEGY

  • The resolution strategy is to validate that Tornado Missile is not a significant hazard for the site

- LAR submittal and approval will clear nonconformances

  • Options Considered for LAR Development

- TMRE (Point Beach was a pilot plant)

- Site-specific High Winds PRA (RG 1.200, Rev. 2)

  • Selected Option

- Site-specific High Winds PRA (RG 1.200, Rev. 2)

License Amendment Request will screen out tornado missile as a significant hazard for the site

  • 6 6

RESOLUTION STRATEGY

- Industry leader

- Developed in 2013 Updated to reflect as-built/as-operated plant Site-specific High Winds PRA is peer-reviewed to ASME Standard and Regulatory Guide 1.200, Revision 2

  • 7 7

CONCLUSION

  • License Amendment Request submittal based on Site-Specific High Winds PRA

- Site PRA concludes Tornado Missile is below the regulatory threshold in the Standard Review Plan and screens out as a significant hazard

  • Plan to submit LAR in second half of 2018 License Amendment Request will screen out tornado missile as a significant hazard for the site
  • 8 8