Briefing Slides on Browns Ferry Nuclear Power Plant, Unit 1 Restart| ML070120142 |
| Person / Time |
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| Site: |
Browns Ferry  |
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| Issue date: |
01/10/2007 |
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| From: |
Reyes L
NRC/EDO |
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| To: |
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| References |
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| Download: ML070120142 (30) |
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Text
COMMISSION BRIEFING SLIDES/EXHIBITS BRIEFING ON BROWNS FERRY UNIT 1 RESTART JANUARY 10, 2007
Browns Ferry Unit 1 Restart January 10, 2007 ILuis Reyes, Executive Director for Operations
Agenda
" Inspection Status
Licensing Status
" License Amendments, Relief Requests, Exemptions
" Special Programs
License Renewal
- Application submitted on January 6, 2004
" ACRS approval letter of March 23, 2006
" Licenses renewed for all 3 units on May 4, 2006
" Over 9,000 staff hours for Unit 1 reviews (16,000 staff hours for Units 2 & 3) .
/4
License Amendments, Relief Requests, Exemptions
- 21 aimendments submitted for restart
- 17 completed, remainder are on schedule
- 12 relief requests and 3 exemptions completed
- About 13,000 staff hours 5
Special Programs U
" Review of generic letters and bulletins
" About 8,000 staff hours 6
Unit I Power Uprate o Unit I uprate to 105% for restart
- Draft safety evaluation to ACRS on December 1, 2006
- ACRS subcommittee meets on January 16, 2007
- ACRS full committee meets on February 1, 2007 7
Extended Power Uprate Issues For The 3 Units
" Steam Dryer Integrity
" Large Transient Testing
" Containment Accident Pressure
" Fuel Methodology 8
Regulatory Oversight
- Requirements for inspections
- Key features used from IMC 0350
- Transition to ROP
- Reactor Oversight Process (ROP)
-4 of the 7 cornerstones already in use 9
Inspection Status
" Remaining Inspections
- System Preoperability Checklist
- Operational Readiness Assessment Team
- Restart and Power Ascension Testing Inspections 10
Performance Assessment
- NRC to TVA letter dated 8/15/06 discussed plant performance
" Unit I Enforcement History
Restart Inspection Status E-Open Items with scheduled inspections El Open Items with field inspection complete N Closed Items 12
IMC 2509 Restart Process Panel & Regional Panel Management recommends briefed on ORAT estart I.
NRR/Rll
< Consultatio 13
Summary
" Unit I preparations continue to be performed in a safe manner
" ORAT inspection will provide insight into status of readiness
- Request authority for Unit I restart in accordance with IMC 2509 14
Acronyms
" ACRS- Advisory Committee on Reactor Safeguards
- IMC- Inspection Manual Chapter
" EPU- Extended Power Uprate
- NRR,- Office of Nuclear Reactor Regulation 15
Acronyms
- ORAT- Operational Readiness Assessment Team SRA- Regional Administrator
- SPOC- System Pre-Operability Checklist 16
TENNE TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT UNIT 1 RESTART NRC Commission Briefing January 10, 2007 AUTOR ALLE
Agenda 0 Introduction Karl Singer
- Unit-1 Recovery Overview Ashok Bhatnagar
- Recovery Process Masoud Bajestani
- Operational Readiness Brian O'Grady
- Conclusion Karl Singer Karl Singer 2
Introduction -ft AH
- We are Confident that it is Safe to Operate Browns Ferry Unit 1
- Identical to Units 2 & 3 restart processes o Rigorous design and modification process through turnover to operations o Extensive testing, self assessments and quality oversight o Unit 1 returns to service with improved margins
- Operational perspective throughout modification and testing
- Time and resources to do the job right Karl Singer 3
[,
M Control Rod Drive Accumulators Elevation 565 West side November 2006 G" 'M hf.j
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I A
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f1~
'U December 2006 4
MI Reactor Water Cleanup Pump 1A Elevation 593 December 2002 N
Deeme 20011 December 2006 5
IMI Standby Liquid Control Elevation 639 May 2002 I I U 1W N I
December 2006 K')
6
Unit 1 Recovery
" Regulatory Framework Agreed to Between NRC and TVA
" Unit 1 Recovery Based on Lessons Learned from Units 2 & 3
" Scope of Unit 1 Restart Project Incorporated:
- The same restart programs as Units 2 & 3
- The same upgrades as installed on Units 2 & 3 including Power Uprate (105%)
- Unit 1 has the Same Licensing Basis as Units 2 & 3
" Unit 1 is Operationally Similar to Units 2 & 3
" Effective Recovery Process used for Units 2 & 3 Yielded a Ten Yearý Gross Capacity Factor - 91.5%
Ashok Bhatnagar 7
Rigorous Recovery Process Project is 98% Complete
- All design modification packages issued
- Bulk of design modifications implemented o Drywell work complete o Reactor Building work essentially complete o Remaining work is primarily balance of plant systems o NRC inspection of 26 of 30 Special Programs complete
- 38 Systems modification complete
- Two Phased approach to system completion o Modification and component testing complete o System and surveillance testing complete Masoud Bajestani 8
System Turnover & Test
- Purpose
- Post-maintenance and post-modification component testing
- System testing
- Integrated system testing
- Organizations Involved
- Key Elements
- Rigorous / Disciplined approach to demonstrating system operability
- Results to date Brian O'Grady 9
System Turnover & Test
- Fuel Load Completed December 22, 2006
- Power Ascension Test Program
- Systematic, controlled approach to full power
- Single pump trip tests
- Large transient testing o Generator load reject o Main steam line isolation valve closure Brian O'Grady 10
Trained/Qualified Staff IIVAI
" Staffed for Safe Three Unit Operation
- Successful Transition to an Operating Organizational Structure
- Experienced staff
- Licensed on all three Units Brian O'Grady 11
Comprehensive Oversight
- Department Self Assessments
- Challenge Boards
- Corrective Action Program
- Operational Readiness Assessment Program
- Nuclear Safety Review Board (with external members)
- Institute of Nuclear Power Operation Review
" Nuclear Assurance
- Formal program audits
- Focused assessments
- Unit 1 Startup Oversight Plan
- NRC Inspection Activities Brian O'Grady 12
Conclusion IRAI
" Work is Nearly Done
- Recovery Processes are Effective and Yielding Positive Results in our Testing
" Readiness Reviews and Assessments Complete
- Plant Ownership is Imposing High Standards of Nuclear Safety
" Regulatory Process and Communications are Sound Karl Singer 13