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Category:Meeting Briefing Package/Handouts
MONTHYEARML24232A2052024-08-12012 August 2024 Presentation Slides for Dresden End-of-Cycle Meeting ML24172A1092024-08-0707 August 2024 Scoping Power Point Presentation ML24127A0952024-05-0606 May 2024 License Renewal Public Scoping Meeting May 2024 ML24100A7672024-04-11011 April 2024 Meeting Slides - Preapplication with Constellation on Planned Fleet Alternative Request to Adopt OMN-2 ML24089A2612024-04-0909 April 2024 Slides - Constellation - Pre-Application Regarding Hooded Masks 4/9/2024 Meeting Slides (L-2024-LLM-0041) ML24040A0722024-02-13013 February 2024 Energy Solution Feb 13 Pubic Meeting Slides on TMI-2 Decommissioning ML24029A1742024-01-30030 January 2024 Constellation Pre-Application January 30, 2024, Meeting Slides - Proposed Alternative to Utilize Code Case N-932, Alternative Requirements for Acceptance of Containment Base Metal Corrosion or Erosion ML24003A1812024-01-0808 January 2024 Handout - Byron-Braidwood Core Monitoring and Support System LAR Pre-Submittal Meeting January 8,2024 ML23345A0362023-12-11011 December 2023 ATWS Uet December 11, 2023 Pre-submittal Meeting Slides ML23317A0712023-11-14014 November 2023 NRC Pre-Submittal Meeting on November 14th, 2023 - TSTF-591 and Selected 50.69 License Condition Updates (EPID L-2023-LLM-0098) (Slides) ML23272A0622023-09-29029 September 2023 Ultimate Heat Sink Temperature Tech Spec Limit Change ML23229A4832023-08-17017 August 2023 RR 20-Year ISI Pre-Submittal NRC Meeting Handout ML23229A0132023-08-17017 August 2023 Relief Request for Alternative Requirements for Byron Unit 1 Reactor Pressure Vessel Inservice Inspection Intervals NRC Meeting Handout ML23255A1042023-08-11011 August 2023 Slides - Constellation - Pre-Application EP 9/18/2023 Draft CEG Presubmittal SG Performance Monitoring Plan Meeting Handout ML23172A2092023-06-28028 June 2023 LRA - NRC Pre-Submittal Meeting Slides ML23172A2102023-06-28028 June 2023 CPS Lr Pre-Submittal Meeting Presentation ML23173A0472023-06-28028 June 2023 SLRA - NRC Presubmittal Meeting Slides - 6-28-23 ML23173A0462023-06-28028 June 2023 DNPS SLR Pre-submittal Meeting Presentation Rev. 1 ML23165A0242023-06-27027 June 2023 June 27, 2023, Dresden Nuclear Power Station Subsequent License Renewal Environmental Pre-application Public Meeting - NRC Slides ML23145A1322023-06-27027 June 2023 June 27, 2023, Dresden Nuclear Power Station Subsequent License Renewal Environmental Pre-application Public Meeting - Constellation Slides ML23145A1342023-06-14014 June 2023 June 27, 2023, Clinton Power Station License Renewal Environmental Pre-application Public Meeting - Constellation Slides ML23165A0162023-06-14014 June 2023 June 27, 2023, Clinton Power Station License Renewal Environmental Pre-application Public Meeting - NRC Slides ML23163A1642023-06-12012 June 2023 2022 Braidwood/Byron End-of-Cycle Meeting Presentation ML23055A2712023-03-0202 March 2023 March 2, 2023, Preapplication Meeting to Discuss Planned Amendments to Adopt TSTF-505 and 10 CFR 50.69 (EPID L-2023-LRM-0007) - Slides ML23033A6662023-02-0909 February 2023 Summary of Public Meeting with Constellation Energy Generation, LLC (Constellation) to Discuss Its Request for Alternatives for Certain Steam Generator Weld Inspections for Calvert Cliffs 1 & 2, Byron 1 & 2, Braidwood 1 & 2, and Ginna ML23033A6672023-01-30030 January 2023 Public Call with Constellation January 30, 2023 (Slides) ML22311A5112022-11-0707 November 2022 Pool Swell License - Amendment Request ML22159A3332022-06-0909 June 2022 Presentation Slides for Braidwood and Byron 2021 End of Cycle Meeting ML21320A0672021-11-17017 November 2021 NRC Pre-Submittal Meeting - Braidwood, Unit 2, LAR for Removal of Unit 2 License Condition for Closure Stud Hole Location No. 35 (EPID L-2021-LRM-0089) (Slides) ML21314A4472021-11-10010 November 2021 Slides for Presubmittial Meeting for Proposed Alternative to Adopt ASME Code Case N-921 to Extend the Inservice Inspection Interval ML21194A1582021-07-13013 July 2021 and Lasalle Nuclear Generating Stations 2020 Annual Assessment Meeting Slides ML21194A1822021-07-13013 July 2021 and Quad Cities Nuclear Generating Stations 2020 Annual Assessment Meeting Slides ML21166A3722021-06-15015 June 2021 End-of-Cycle Meeting Presentation ML21141A0102021-05-21021 May 2021 La Salle County Station, Units 1 and 2, May 27, 2021 Pre Submission Public Meeting Slides (EPID-L-2021-LRM-0052) ML21130A6252021-05-12012 May 2021 NRC Pre-Submittal Meeting - Braidwood LAR for Ultimate Heat Sink (EPID L-2021-LRM-0040) (Slides) ML21078A0952021-03-0808 March 2021 Session W20 - James Petty - Slide Deck 3 ML21021A0652021-01-21021 January 2021 NRC Pre-Application Meeting - Clinton One-Time Extension of the Containment Type a Leak Rate Test Frequency (Meeting Handout) ML20258A0302020-09-22022 September 2020 Decommissioning Licensing Action Submittal Plan for Byron and Dresden Stations Early Shutdowns ML20261G7322020-09-16016 September 2020 Pre-Submittal Slides Extend 120-month Isi/Ist Interval Under 50.55a ML20238B8662020-08-25025 August 2020 Hq Online EOC Slides ML20238B8572020-08-25025 August 2020 Quad 2019 Hq Online EOC Slides ML20209A5322020-07-24024 July 2020 2019 Braidwood and Byron End-of-Cycle Presentation ML20178A4202020-06-30030 June 2020 NEI Slides for June 30, 2020, Public Meeting on COVID-19 Response ML20175A8722020-06-23023 June 2020 Risk-Informed Inservice Inspection - U.S Nuclear Regulatory Commission (NRC) - Four Element Risk-Informed Approach ML20170B0212020-06-23023 June 2020 NRC Pre-Submittal Meeting Byron Unit 2 One-Time Deferral of Reactor Pressure Vessel Head Penetration Nozzle (Rpvhpn) Inspections ML20169A5592020-06-16016 June 2020 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections (Rev 1) ML20163A6552020-06-16016 June 2020 6-16-20 Byron Unit 2 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections ML20091L0432020-04-0101 April 2020 Public Meeting Handout for Braidwood, Unit 2, April 1, 2020 ML19318F9512019-11-20020 November 2019 Presentation Slides for November 20, 2019, Pre-Application Meeting - Request for Revision to Quality Assurance Program Internal Audit Frequency ML19317C9952019-11-12012 November 2019 In-Service Testing Supplemental Position Indication Relief Request NRC Pre-Application Meeting November 18, 2019 2024-08-07
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Exelon Experience with Power Uprates RIC 2004 Emergent Technical Issues Session T-11 Chris Crane President and Chief Nuclear Officer Exelon Nuclear March 11, 2004
Power Uprates The majority of Exelon power uprates are complete with 887 MWe added to fleet capacity with 76 MWe scheduled in 2006 Gross MW 76 480 293 963 114 2000 2001 2002 2003-2005 2006 Annual Increm ent 2
Exelon Power Uprate Details LaSalle Unit 1 120 LaSalle Unit 2 Braidwood Unit 1 100 Braidwood Unit 2 80 Byron Unit 1 Byron Unit 2 We Gained 60 Dresden Unit 2 TMI Unit 1 40 Braidwood Unit 2 20 Byron Unit 1 Clinton Unit 1 0 Dresden Unit 3 2000 2001 2002 2006 Quad Cities Unit 1 Year of Uprate Quad Cities Unit 2 Clinton Unit 1 3
Exelon Results of Power Uprates
- Majority of power uprates successful with the following exceptions:
- Quad Cities Unit 1 and 2 experienced Dryer structural integrity and steam line component (Electromatic Relief Valve (ERV)) vibration issues
- Dresden Unit 2 and 3 both experienced varying degrees of Dryer cracking and both units had isokinetic probes dislodged and migrated to the feedwater sparger 4
Root Causes of Uprate Issues
- Steam Dryer Failures High cycle fatigue due to increased amplitude of flow induced and acoustic loading from increased main steam line velocities
Accelerated aging due to EPU related increase in main steam line vibration levels
Conclusion
- Quad Cities and Dresden are the exceptions to successful power uprates
- Refrain from fast track temptation on power uprates
- Implement a proactive vibration monitoring plan
- Evaluate steam flow effects on steam dryer and other steam flow sensitive components
- Evaluate pre-existing operational margin limitations against the uprate expected effects 6
Current Industry Response
- Active dialogue with NRC via Issues Program Groups and Industry Executive Leadership
- BWR Owners Group
- BWR VIP
- Issues Programs active in assessing generic issues
- Generic Insights will be appropriately factored into Issues Programs and NEI Materials Initiative 7
BWR Future Activity
- For BWR Fleet in U.S., active assessment by executive leadership of need for generic versus plant specific solutions. Working with GE at the executive level
- Near Term determination of technology and design review needs to bound structural and acoustic design requirements for some plant types 8
Overall Industry Focus
- Licensees and Issues Programs recognize the need to determine safety significance of any emergent issues
- Active engagement with the NRC will serve the needs of all stakeholders
- New design and technology insights may emerge from IP scope and near term work 9