License Renewal. Long Term Operations of Nuclear Power Plants in the United States. Michael P Gallagher Vice President Exelon License Renewal Projects
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1 License Renewal Long Term Operations of Nuclear Power Plants in the United States Michael P Gallagher Vice President Exelon License Renewal Projects Stockholm, Sweden January 21, 2015
2 Exelon Generation Portfolio IL Wind Quad Cities Byron SE Chicago Exelon City Solar Dresden Braidwood LaSalle Clinton Grande Prairie Falls Fairless Hills Pennsbury OR Wind ID Wind MN Wind Ft. Calhoun (OPPD) West Valley Sunnyside MO Wind Nine Mile Point R. E. Ginna MI Wind Wyman (AM) Oyster Creek Salem (AM) Mystic Fore River Framingham New Boston West Medway Handsome Lake Keystone(AM) Conemaugh (AM) Colver (AM) Limerick Moser Three Mile Island Safe Harbor (AM) Peach Bottom Muddy Run Croydon Delaware Richmond Schuylkill Southwark Eddystone Chester AVSR 1 (In Development) KS Wind SEGS (AM) Nuclear Coal Gas/Oil Intermediate* NM Wind Quail Run Texas Wind Handley Wolf Hollow Colorado Bend Mountain Creek LaPorte Hillabee MD Wind Conowingo Notch Cliff Perryman Philadelphia Road Westport Riverside Gould Street Peakers Renewables (Hydro, Wind, Solar, Landfill Gas) Calvert Cliffs * Eddystone, Handley, Mountain Creek, Mystic and Riverside also have peakers (AM) Asset Management (ownership interest only) (OPPD) Exelon Nuclear Partners operates Ft. Calhoun, a MW plant, under contract with Omaha Public Power District, which owns the facility and its output 2
3 Exelon Operated NPPs 3
4 Key Points 1. Long Term Operations of NPP greater than 40 years is a reality in the United States 2. NPP are safely operated by implementation of the Current Licensing Basis (CLB) and Aging Management Programs 3. Aging Management Programs are maintained current through the use of operating experience and corrective action programs 4. Operating NPP beyond 60 years is technically feasible 5. United States NPP owners are planning to apply for licenses to operate beyond 60 years 4
5 US License Renewal Industry Status 75 units approved; 19 units under NRC review First unit operated beyond 40 years starting in units operating beyond 40 years at end of 2014 Overall Aging Management Programs have been effectively implemented Obtaining Licenses for beyond 60 years is the next step 5
6 Exelon License Renewal Status Original License Date Submitted Approved Renewed License Date Calvert Cliffs 1 &2 July 31, 2014 August 13, 2016 Peach Bottom 2 & 3 Aug 08, 2013 July 02, 2014 April 10, 1998 March 23, 2000 July 31, 2034 August 13, 2036 July 02, 2001 May 07, 2003 Aug 08, 2033 July 02, 2034 Ginna Sept 18, 2009 August 1, 2002 May 19, 2004 Sept 18, 2029 Dresden 2 & 3 Dec 22, 2009 Jan 12, 2011 Quad Cities 1 & 2 Dec 14, 2012 Dec 14, 2012 NMP 1 & 2 Aug 22, 2009 Oct 31, 2026 Jan 03, 2003 Oct 28, 2004 Dec 22, 2029 Jan 12, 2031 Jan 03, 2003 Oct 28, 2004 Dec 14, 2032 Dec 14, 2032 May 27, 2004 Oct 31, 2006 Aug 22, 2029 Oct 31, 2046 Oyster Creek April 09, 2009 July 22, 2005 April 8, 2009 April 09, 2029 TMI 1 April 19, 2014 Jan 08, 2008 Oct 22, 2009 April 19, 2034 Salem 1 & 2 (partially owned; operated by PSEG) Aug 13, 2016 April 18, 2020 Aug 18, 2009 June 30, 2011 Aug 13, 2036 April 18, 2040 Limerick 1 & 2 Oct 26, 2024 June 22, 2029 Byron 1 & 2 Oct 31, 2024 Nov 06, 2026 Braidwood 1 & 2 Oct 17, 2026 Dec 18, 2027 LaSalle 1 & 2 April 17, 2022 Dec 16, 2023 June 22, 2011 Oct 20, 2014 Oct 26, 2044 June 22, 2049 May 29, 2013 May 29, 2013 Dec 9, 2014 Clinton Sept 29, 2026 March 2021 Planned 6
7 License Renewal Rule 10 CFR 54 The License Renewal Rule Safety Application Part 54 Environmental Report Part 51 Application may not be submitted until the plant has operated for 20 years New license can be extended 20 years beyond current license 10 CFR (d): a renewed license can subsequently be renewed Existing rule is adequate and proven for Second License Renewal 7
8 License Renewal Rule Principles The regulatory process is adequate to ensure that the current licensing basis provides an acceptable level of safety, with the possible exception of the detrimental effects of aging on certain systems, structures, and components, and Each plant's current licensing basis is required to be maintained during the renewal term. 8 8
9 License Renewal Aging Management Programs
10 Part 54 Application Integrated Plant Assessment Scope Screen Aging Management Review Systems, components and structures within the scope of 10CFR54: Safety Related Non-Safety Related that could prevent a safety function Regulated Events- SBO, EQ, Fire, PTS, ATWS SCOPE Active Passive Or Active? Passive Periodically Replaced? Yes No Aging Management Review Structures & Components not subject to Additional Aging Management Review Managed by Existing Activities? Yes No Modify existing or add new programs Demonstration that the effects of Aging are adequately managed 10
11 Aging Management program 10 Element Review 1. Scope of Program 2. Preventive Actions 3. Parameters Monitored/Inspected 4. Detection of Aging Effects 5. Monitoring and Trending 6. Acceptance Criteria 7. Corrective Actions 8. Confirmation Process 9. Administrative Controls 10. Operating Experience 11
12 36 Mechanical GALL Aging Management Programs XI.M1 ASME Section XI Inservice Inspection, Subsections IWB, IWC, and IWD XI.M2 Water Chemistry XI.M3 Reactor Head Closure Stud Bolting XI.M4 BWR Vessel ID Attachment Welds XI.M5 BWR Feedwater Nozzle XI.M6 BWR Control Rod Drive Return Line Nozzle XI.M7 BWR Stress Corrosion Cracking XI.M8 BWR Penetrations XI.M9 BWR Vessel Internals XI.M10 Boric Acid Corrosion XI.M11B Cracking of Nickel-Alloy Components and Loss of Material Due to Boric Acid-Induced Corrosion in Reactor Coolant Pressure Boundary Components (PWRs only XI.M12 Thermal Aging Embrittlement of Cast Austenitic Stainless Steel (CASS) XI.M16A PWR Vessel Internals XI.M17 Flow-Accelerated Corrosion XI.M18 Bolting Integrity XI.M19 Steam Generators XI.M20 Open-Cycle Cooling Water System XI.M21A Closed Treated Water Systems. XI.M22 Boraflex Monitoring XI.M23 Inspection of Overhead Heavy Load and Light Load (Related to Refueling) Handling Systems XI.M24 Compressed Air Monitoring XI.M25 BWR Reactor Water Cleanup System XI.M26 Fire Protection XI.M27 Fire Water System XI.M29 Aboveground Metallic Tanks XI.M30 Fuel Oil Chemistry XI.M31 Reactor Vessel Surveillance XI.M32 One-Time Inspection XI.M33 Selective Leaching XI.M35 One-time Inspection of ASME Code Class 1 Small Bore-Piping XI.M36 External Surfaces Monitoring of Mechanical Components XI.M37 Flux Thimble Tube Inspection XI.M38 Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components XI.M39 Lubricating Oil Analysis XI.M40 Monitoring of Neutron-Absorbing Materials Other than Boraflex XI.M41 Buried and Underground Piping and Tanks 12
13 8 Structural & 6 Electrical & 3 TLAA GALL Aging Management Programs Structural XI.S1 ASME Section XI, Subsection IWE XI.S2 ASME Section XI, Subsection IWL XI.S3 ASME Section XI, Subsection IWF XI.S4 10 CFR Part 50, Appendix J XI.S5 Masonry Walls XI.S6 Structures Monitoring XI.S7 RG 1.127, Inspection of Water-Control Structures Associated with Nuclear Power Plants XI.S8 Protective Coating Monitoring and Maintenance Program. Electrical XI.E1 Insulation Material for Electrical Cables and Connections Not Subject to 10 CFR Environmental Qualification XI.E2 Insulation Material for Electrical Cables and Connections Not Subject to 10 CFR Environmental Qualification Requirements Used in Instrumentation Circuits XI.E3 Inaccessible Power Cables Not Subject to 10 CFR Environmental Qualification Requirements XI.E4 Metal Enclosed Bus XI.E5 Fuse Holders XI.E6 Electrical Cable Connections Not Subject to 10 CFR Environmental Qualification Requirements Time Limited Aging Analysis X.M1 Fatigue Monitoring X.S1 Concrete Containment Tendon Prestress X.E1 Environmental Qualification (EQ) of Electric Components 13
14 Developing & Maintaining Effective Aging Management Programs (AMP) Plant Specific OE Industry OE Codes & Standards Research GALL Develop/Modify Aging Management Programs Implement Activities Corrective Action Program NO Criteria Met? YES Continue Monitoring Modify AMP Repair/ Replacement Use of Corrective Action, Operating Experience and ongoing research ensures existing AMPs remain effective for Second License Renewal. 14
15 License Renewal Industry Research for Long Term Operations
16 EPRI Report Assessment of R&D Supporting Aging Management Programs for Long-Term Operations Three categories of AMPs Category 1 R&D support to address knowledge gaps for 60 to 80 years operation to better understand and manage materials performance Category 2 R&D supporting role where aging degradation is well characterized Category 3 No New R&D role identified EPRI & DOE have concluded that there are no generic show stoppers for SLR. Only 8 AMPs were identified as Category 1. This means that the existing AMP is sufficient to detect aging effects and will continue to be improved with ongoing research. 16
17 Materials Category 1 Summary On-Going R&D for Long Term Operations GALL AMP Name Potential LTO Impact on AMP AMP ID XI.M9 BWR Vessel Internals Irradiation and environmental effects on material performance XI.M11B XI.M12 Cracking of Nickel-Alloy Components and Loss of Material Due to Boric Acid-Induced Corrosion in Reactor Coolant Pressure Boundary Components Thermal Aging Embrittlement of Cast Austenitic Stainless Steel (CASS) Environmental effects on material performance Thermal aging and possible irradiation effects on material performance XI.M16A PWR Vessel Internals Irradiation and environmental effects on material X.M31 Reactor Vessel Surveillance Neutron fluence on reactor pressure vessel materials 17
18 Structural & Electrical Category 1 Summary On-Going R&D for Long Term Operations GALL AMP AMP Name Potential LTO Impact on AMP ID XI.S6 Structures Monitoring ASR susceptibility and irradiation effects on material properties GALL AMP AMP Name Potential LTO Impact on AMP ID XI.E1 Insulation Material for Electrical Cables and Connections Not Subject to 10 CFR Environmental Qualification Requirements Combined effects of thermal and radiation exposure XI.E2 Insulation Material for Electrical Cables and Connections Not Subject to 10 CFR Environmental Qualification Requirements Used In Instrumentation Circuits Combined effects of thermal and radiation exposure 18
19 Key Points 1. Long Term Operations of NPP greater than 40 years is a reality in the United States 2. NPP are safely operated by implementation of the Current Licensing Basis (CLB) and Aging Management Programs 3. Aging Management Programs are maintained current through the use of operating experience and corrective action programs 4. Operating NPP beyond 60 years is technically feasible 5. United States NPP owners are planning to apply for licenses to operate beyond 60 years 19
20 License Renewal Questions?
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