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| | number = ML15125A168 | | | number = ML15125A168 |
| | issue date = 04/25/2015 | | | issue date = 04/25/2015 |
| | title = Peach Bottom, Unit 2 Power Ascension - 108% Hold Point Decision | | | title = Power Ascension - 108% Hold Point Decision |
| | author name = Ennis R B | | | author name = Ennis R |
| | author affiliation = NRC/NRR/DORL/LPLI-2 | | | author affiliation = NRC/NRR/DORL/LPLI-2 |
| | addressee name = Ainger K | | | addressee name = Ainger K |
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| | docket = 05000277, 05000278 | | | docket = 05000277, 05000278 |
| | license number = | | | license number = |
| | contact person = Ennis R B, NRR/DORL/LPLI-2, 415-1420 | | | contact person = Ennis R, NRR/DORL/LPLI-2, 415-1420 |
| | case reference number = TAC MF4792 | | | case reference number = TAC MF4792 |
| | document type = E-Mail | | | document type = E-Mail |
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| =Text= | | =Text= |
| {{#Wiki_filter:From: Ennis, Rick Sent: Saturday, April 25, 2015 1:12 PM To: Ken Ainger Cc: Kevin Borton (kevin.borton@exeloncorp.com); David Neff; Rommel, John C.:(GenCo-Nuc); Broaddus, Doug; Wilson, George; Lund, Louise; Uhle, Jennifer; Basavaraju, Chakrapani; Pettis, Robert; Ross-Lee, MaryJane; Lubinski, John; Thorp, John; Bower, Fred; Barber, Scott; Turilin, Andrey; Hansell, Samuel; Smith, Brian; Lin, Brian; Vik Shah; Vik Shah (home) (vnshah@sbcglobal.net); Stephen Hambric; Samir Ziada | | {{#Wiki_filter:From: Ennis, Rick Sent: Saturday, April 25, 2015 1:12 PM To: Ken Ainger Cc: Kevin Borton (kevin.borton@exeloncorp.com); David Neff; Rommel, John C.:(GenCo-Nuc); Broaddus, Doug; Wilson, George; Lund, Louise; Uhle, Jennifer; Basavaraju, Chakrapani; Pettis, Robert; Ross-Lee, MaryJane; Lubinski, John; Thorp, John; Bower, Fred; Barber, Scott; Turilin, Andrey; Hansell, Samuel; Smith, Brian; Lin, Brian; Vik Shah; Vik Shah (home) |
| | (vnshah@sbcglobal.net); Stephen Hambric; Samir Ziada |
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| ==Subject:== | | ==Subject:== |
| Peach Bottom Unit 2 Power Ascension - 108% Hold Point Decision Ken, Sorry I missed your calls earlier today. In response to your voicemail, yes, the email I sent this morning with RAI-11 provided the status update (by 3:00 pm today) promised in my 4/24 email | | Peach Bottom Unit 2 Power Ascension - 108% Hold Point Decision |
| | | : Ken, Sorry I missed your calls earlier today. In response to your voicemail, yes, the email I sent this morning with RAI-11 provided the status update (by 3:00 pm today) promised in my 4/24 email below. |
| below. | | Also, with respect to the 96 hour review period for the 108% hold point, and decision regarding further power ascension (mentioned in the email below), the staff has decided that it has objections to further power ascension. We believe that further power ascension is not warranted at this time based on the issues discussed in RAI-11. As noted in the RAI: |
| | | The NRC staff has reviewed the information the licensee provided and has determined that additional information, as described below, needs to be provided to help inform the staffs decision on the acceptability of the proposed change in methodology as well as power ascension beyond 108% of 3514 MWt. |
| Also, with respect to the 96 hour review period for the 108% hold point, and decision regarding further power ascension (mentioned in the email below), the staff has decided that it has objections to further power ascension. We believe that further power ascension is not warranted at this time based on the issues discussed in RAI-11. As noted in the RAI: | | We dont have all the needed staff for a call today. It looks like we could support a call on Sunday 4/26 at either of the following time periods: |
| | | 12:30 - 1:15 pm 4:15 - 5:00 pm Please let me know if you have any questions. |
| The NRC staff has reviewed the information the licensee provided and has determined that additional information, as described below, needs to be provided to help inform the staff's decision on the acceptability of the proposed change in methodology as well as power ascension beyond 108% of 3514 MWt. | | : Thanks, Rick From: Ennis, Rick Sent: Friday, April 24, 2015 6:14 PM To: Ken Ainger Cc: Broaddus, Doug; Kevin Borton (kevin.borton@exeloncorp.com); Rommel, John C.:(GenCo-Nuc); |
| | | David Neff |
| We don't have all the needed staff for a call today. It looks like we could support a call on Sunday 4/26 at either of the following time periods: | |
| 12:30 - 1:15 pm 4:15 - 5:00 pm | |
| | |
| Please let me know if you have any questions. | |
| | |
| Thanks, Rick | |
| | |
| From: Ennis, Rick Sent: Friday, April 24, 2015 6:14 PM To: Ken Ainger Cc: Broaddus, Doug; Kevin Borton (kevin.borton@exeloncorp.com); Rommel, John C.:(GenCo-Nuc); | |
| David Neff | |
|
| |
|
| ==Subject:== | | ==Subject:== |
| Peach Bottom Unit 2 Power Ascension - Feedback Regarding 108% Call Today | | Peach Bottom Unit 2 Power Ascension - Feedback Regarding 108% Call Today |
| | |
| Here's some feedback from the NRC staff and contractor internal discussions following our call today with Exelon and Westinghouse concerning the Peach Bottom Unit 2 power ascension 108% information:
| |
| : 1) The NRC and its contractors are still having in ternal discussions regarding the information Exelon provided for the 108% hold point at Peach Bottom Unit 2.
| |
| : 2) There are still concerns regarding the methodology. The concerns relate whether the proper modes were selected in the analysis. The raises uncertainty regarding whether the stresses currently calculated are correct. The staff and contractors are working over the weekend to specifically document these concerns. It is likely that additional information will be needed to address the methodology concerns.
| |
| : 3) We have not yet made a decision regarding power ascension from 108% to 112.4%. Further internal discussions are needed to determine if there is reasonable assurance of structural integrity of the steam dryer at the full EPU power level given the concerns with the methodology. The staff plans to make a decision prior to the end of the 96 hour license condition review period (i.e., by 7:40 pm on Sunday 4/26).
| |
| : 4) Rick Ennis will contact Ken Ainger by 3:00 pm on Saturday, 4/25 with a status update.
| |
| : 5) Doug Broaddus will call Scot Greenlee tonight to pass on the above info.
| |
| | |
| Please let me know if you have any questions.
| |
|
| |
|
| Thanks, Rick}} | | Heres some feedback from the NRC staff and contractor internal discussions following our call today with Exelon and Westinghouse concerning the Peach Bottom Unit 2 power ascension 108% information: |
| | : 1) The NRC and its contractors are still having internal discussions regarding the information Exelon provided for the 108% hold point at Peach Bottom Unit 2. |
| | : 2) There are still concerns regarding the methodology. The concerns relate whether the proper modes were selected in the analysis. The raises uncertainty regarding whether the stresses currently calculated are correct. The staff and contractors are working over the weekend to specifically document these concerns. It is likely that additional information will be needed to address the methodology concerns. |
| | : 3) We have not yet made a decision regarding power ascension from 108% to 112.4%. |
| | Further internal discussions are needed to determine if there is reasonable assurance of structural integrity of the steam dryer at the full EPU power level given the concerns with the methodology. The staff plans to make a decision prior to the end of the 96 hour license condition review period (i.e., by 7:40 pm on Sunday 4/26). |
| | : 4) Rick Ennis will contact Ken Ainger by 3:00 pm on Saturday, 4/25 with a status update. |
| | : 5) Doug Broaddus will call Scot Greenlee tonight to pass on the above info. |
| | Please let me know if you have any questions. |
| | : Thanks, Rick}} |
Letter Sequence Other |
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MONTHYEARML15040A7202015-03-12012 March 2015 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit No. 2 Project stage: Withholding Request Acceptance ML15083A5592015-03-24024 March 2015 Extended Power Uprate: Response to Replacement Steam Dryer Requests for Additional Information Project stage: Other ML15033A4892015-03-27027 March 2015 NRC Staff Review of Replacement Steam Dryer Re-Benchmarking to Support Extended Power Uprate Power Ascension Project stage: Approval ML15086A3332015-03-27027 March 2015 Request for Additional Information Regarding Replacement Steam Dryer Analysis, Exelon Generation Company, Llc. Peach Bottom Atomic Power Station - Unit 2 Project stage: RAI ML15096A0082015-04-0505 April 2015 Extended Power Uprate: Response to Replacement Steam Dryer Requests for Additional Information Project stage: Other ML15084A3422015-04-0606 April 2015 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit No. 2 Project stage: Withholding Request Acceptance ML15099A7482015-04-0909 April 2015 Power Ascension Hold at 104% of 3514 Mwt Project stage: Other ML15110A0982015-04-10010 April 2015 E-Mail Peach Bottom Unit 2 - Power Ascension Hold at 104% of 3514 Mwt Project stage: Other ML15091A1342015-04-16016 April 2015 Summary of Closed Meeting Held on March 26, 2015, with Exelon Generation Company, LLC to Discuss Steam Dryer Analysis for Peach Bottom Atomic Power Station, Unit No. 2 Project stage: Meeting ML15125A1682015-04-25025 April 2015 Power Ascension - 108% Hold Point Decision Project stage: Other ML15127A5182015-05-0505 May 2015 Draft Request for Additional Information (Tac No. MF4792) Project stage: Draft RAI ML15127A5262015-05-0505 May 2015 Draft Request for Additional Information (Attachment 2) Project stage: Draft RAI ML15110A0852015-05-12012 May 2015 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit No. 2 Project stage: Withholding Request Acceptance ML15135A4372015-05-15015 May 2015 Approval of Steam Dryer Methodology and Resumption of EPU Power Ascension Project stage: Other ML15135A4022015-05-15015 May 2015 Extended Power Uprate: Response to Replacement Steam Dryer Request for Additional Information Project stage: Request ML15127A2082015-05-19019 May 2015 Approval of Revision to Methodology for Establishing Replacement Steam Dryer Strain Limits Project stage: Other ML15196A6372015-07-15015 July 2015 Error Identified in Letter from Exelon to NRC Re Predicted Strain Ratios Provided in Response to Request for Additional Information (RAI-11) Project stage: Response to RAI 2015-04-05
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Category:E-Mail
MONTHYEARML24002A7132023-12-29029 December 2023 Supplement - Peach Bottom Security Rule Exemption Request ISFSI Docket No. Reference (EPID L-2023-LLE-0032) (Updated) (Email) ML23352A3242023-12-18018 December 2023 Acceptance of Requested Licensing Action Request for Alternative Schedule to Complete Decommissioning Beyond 60 Years of Permanent Cessation of Operations (EPID L- 2023-LLN-0004) ML23331A9112023-11-22022 November 2023 Supplement - Peach Bottom Security Rule Exemption Request ISFSI Docket No. Reference ML23304A0182023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - Peach Bottom 2 & 3 - Exemption from Security Rule (L-2023-LLE-0032) ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23237B3972023-08-24024 August 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Alternative Request to Use Updated BWRVIP Guidelines ML23163A2292023-06-12012 June 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-580, Revision 1 ML22354A2622022-12-20020 December 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Request to Use Certain Provisions of the 2019 Edition of the ASME BPV Code, Section XI ML22325A0052022-11-18018 November 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-273-A, Revision 2 ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits ML22118A3312022-04-28028 April 2022 NRR E-mail Capture - Peach Bottom - Formal RAI for Proposed Alternative I5R-14, Revision 1 ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 ML22024A1852022-01-24024 January 2022 Acceptance for Review of Relief Request Associated with Reactor Pressure Vessel N-16A Nozzle Repair ML22020A0642022-01-13013 January 2022 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21301A0672021-10-28028 October 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-541 ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21252A0482021-09-0707 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet Alternative Request for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21215A3502021-08-0303 August 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-554 ML21154A0142021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0132021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0112021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21134A0152021-05-14014 May 2021 Acceptance Ventilation Filter Testing LAR ML21117A0442021-04-26026 April 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting ML21084A2532021-03-24024 March 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Transfer Application ML21062A0652021-03-0101 March 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting ML21049A2572021-02-18018 February 2021 Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237) ML21091A1782021-02-0202 February 2021 Ti 2515/194 Inspection Documentation Request ML21033A8552021-02-0202 February 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet Alternative Request to Expand the Use ASME Codes Cases N-878 and N-880 ML21012A1302021-01-12012 January 2021 Request for Additional Information - TSTF-505 ML20357A0972020-12-21021 December 2020 Request for Additional Information - TSTF-505 ML20350B5582020-12-14014 December 2020 NRR E-mail Capture - Exelon Generation Company, LLC -Alternative Request for Documentation of Replacement of Pressure Retaining Bolting ML20343A3492020-12-0707 December 2020 Acceptance of Requested Licensing Action: Peach Bottom Relief Request for N-16 Nozzle ML20324A6472020-11-19019 November 2020 Acceptance of Requested Licensing Action: Peach Bottom One-time Exemption App. B Sect. VI.C.3.(I)(1) Force on Force (COVID-19) ML20314A0282020-11-0606 November 2020 Verbal Relief for Penetration Nozzle ML20283A7722020-10-0909 October 2020 Submittal of Pennsylvania Letter Requesting Exemption from Biennial Exercise Requirements for Pennsylvania Nuclear Power Plants in Calendar Year 2020 ML20276A0762020-10-0202 October 2020 Acceptance of Requested Licensing Action, One-Time Acceptance for Review - Peach Bottom of Exemption from 10 CFR 50, Appendix E, Biennial Emergency Preparedness Exercise Requirements Due to COVID-19 Pandemic ML20266G3032020-09-22022 September 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet Request to Use Paragraph IWA-5120 of the 2017 Edition of the ASME B&PV Code, Section XI ML20239A7982020-08-25025 August 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet License Amendment Request to Adopt TSTF-568, Revision 2 ML20217L3462020-08-0404 August 2020 Audit Plan Regarding License Amendment Request to Implement Riskinformed Extended Completion Times (L-2020-LLA-0120) ML20191A0182020-07-0101 July 2020 NRR E-mail Capture - Exelon Fleet RR for SPI for Appendix J Valves ML20178A1392020-06-26026 June 2020 Acceptance Review for Peach Bottom - License Amendment Request for TSTF-505 ML20153A7042020-06-0101 June 2020 NRR E-mail Capture - Preliminary RAI for Fleet Request to Use Alternative OMN-26 ML20149K4312020-05-22022 May 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-566 ML20135H1972020-05-14014 May 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Extend Safety Relief Valve Test Interval ML20122A2302020-05-0101 May 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of Fleet License Amendment Request to Adopt TSTF-566 ML20077F6112020-03-16016 March 2020 E-mail: the U.S. Nuclear Regulatory Commission'S Record of Decision Regarding Exelon'S Subsequent License Renewal Application for Peach Bottom Atomic Power Station Units 2 and 3 ML20070R2282020-03-10010 March 2020 Request for Additional Information - RR ML20063G1362020-02-27027 February 2020 NRR E-mail Capture - Exelon Generation Company, LLC -Acceptance of Proposed Alternative to Extend Safety Relief Valve Test Frequency (EPIDs L-2020-LLR-0014 Through L-2020-LLR-0018) ML20057E5562020-02-26026 February 2020 Availability of the Final Supplemental Environmental Impact Statement for Subsequent License Renewal of Peach Bottom Atomic Power Station, Units 2 and 3 2023-09-21
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Text
From: Ennis, Rick Sent: Saturday, April 25, 2015 1:12 PM To: Ken Ainger Cc: Kevin Borton (kevin.borton@exeloncorp.com); David Neff; Rommel, John C.:(GenCo-Nuc); Broaddus, Doug; Wilson, George; Lund, Louise; Uhle, Jennifer; Basavaraju, Chakrapani; Pettis, Robert; Ross-Lee, MaryJane; Lubinski, John; Thorp, John; Bower, Fred; Barber, Scott; Turilin, Andrey; Hansell, Samuel; Smith, Brian; Lin, Brian; Vik Shah; Vik Shah (home)
(vnshah@sbcglobal.net); Stephen Hambric; Samir Ziada
Subject:
Peach Bottom Unit 2 Power Ascension - 108% Hold Point Decision
- Ken, Sorry I missed your calls earlier today. In response to your voicemail, yes, the email I sent this morning with RAI-11 provided the status update (by 3:00 pm today) promised in my 4/24 email below.
Also, with respect to the 96 hour0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> review period for the 108% hold point, and decision regarding further power ascension (mentioned in the email below), the staff has decided that it has objections to further power ascension. We believe that further power ascension is not warranted at this time based on the issues discussed in RAI-11. As noted in the RAI:
The NRC staff has reviewed the information the licensee provided and has determined that additional information, as described below, needs to be provided to help inform the staffs decision on the acceptability of the proposed change in methodology as well as power ascension beyond 108% of 3514 MWt.
We dont have all the needed staff for a call today. It looks like we could support a call on Sunday 4/26 at either of the following time periods:
12:30 - 1:15 pm 4:15 - 5:00 pm Please let me know if you have any questions.
- Thanks, Rick From: Ennis, Rick Sent: Friday, April 24, 2015 6:14 PM To: Ken Ainger Cc: Broaddus, Doug; Kevin Borton (kevin.borton@exeloncorp.com); Rommel, John C.:(GenCo-Nuc);
David Neff
Subject:
Peach Bottom Unit 2 Power Ascension - Feedback Regarding 108% Call Today
Heres some feedback from the NRC staff and contractor internal discussions following our call today with Exelon and Westinghouse concerning the Peach Bottom Unit 2 power ascension 108% information:
- 1) The NRC and its contractors are still having internal discussions regarding the information Exelon provided for the 108% hold point at Peach Bottom Unit 2.
- 2) There are still concerns regarding the methodology. The concerns relate whether the proper modes were selected in the analysis. The raises uncertainty regarding whether the stresses currently calculated are correct. The staff and contractors are working over the weekend to specifically document these concerns. It is likely that additional information will be needed to address the methodology concerns.
- 3) We have not yet made a decision regarding power ascension from 108% to 112.4%.
Further internal discussions are needed to determine if there is reasonable assurance of structural integrity of the steam dryer at the full EPU power level given the concerns with the methodology. The staff plans to make a decision prior to the end of the 96 hour0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> license condition review period (i.e., by 7:40 pm on Sunday 4/26).
- 4) Rick Ennis will contact Ken Ainger by 3:00 pm on Saturday, 4/25 with a status update.
- 5) Doug Broaddus will call Scot Greenlee tonight to pass on the above info.
Please let me know if you have any questions.
- Thanks, Rick