L-24-243, License Renewal Application for the Perry Nuclear Power Plant Revision O - Supplement 6
| ML24312A368 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 11/07/2024 |
| From: | Penfield R Energy Harbor Nuclear Corp |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| L-24-243 | |
| Download: ML24312A368 (1) | |
Text
L-24-243 November 7, 2024 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
SUBJECT:
Perry Nuclear Power Plant, Unit No. 1 Docket No. 50-440, License No. NPF-58 Perry Nuclear Power Plant Rod L. Penfield Site Vice President 10 Center Road Perry, Ohio 44081 10 CFR 54 License Renewal Application for the Perry Nuclear Power Plant Revision O - Supplement 6
REFERENCES:
1.
Letter L-23-146, from Rod L. Penfield to the Nuclear Regulatory Commission, dated July 3, 2023, submitting the Perry Nuclear Power Plant License Renewal Application Revision O (ADAMS Accession No. ML23184A081) 2.
Nuclear Regulatory Commission issuance of Conforming License Amendment 203 to Facility Operating License NPF-58 (Enclosure 1) for the license transfer for the Perry Nuclear Power Plant (ADAMS Accession Nos. ML24057A075 and ML24057A077) 3.
Letter L-24-110, from Rod L. Penfield to the Nuclear Regulatory Commission, dated July 3, 2024, submitting 10 CFR 54.21 (b) Annual Amendment to the Perry Nuclear Power Plant License Renewal Application (ADAMS Accession No. ML24185A092)
- 4. Letter from Lauren K. Gibson to Rod L. Penfield, Perry Nuclear Power Plant, Unit No. 1 dated September 25, 2023 - Aging Management Audit Plan Regarding the License Renewal Application Review (ADAMS Accession No. ML23261B019) 5.
Letter L-24-189, from Rod L. Penfield to the Nuclear Regulatory Commission, dated August 7, 2024, submitting the Perry Nuclear Power Plant License Renewal Application Revision 0, Supplement 1 (Non-Proprietary) (ADAMS Accession No. ML24220A270) 6555 SIERRA DRIVE IRVING, TEXAS 75039 o 214-812-4600 VISTRACORP.COM
Perry Nuclear Power Plant L-24-243 Page 2 of 3 6.
Letter L-24-020, from Rod L. Penfield to the Nuclear Regulatory Commission, dated June 27, 2024, submitting the Perry Nuclear Power Plant License Renewal Application Revision 0, Supplement 2 (ADAMS Accession No. ML24180A010)
- 7. Letter L-24-108, from Rod L. Penfield to the Nuclear Regulatory Commission, dated July 24, 2024, submitting the Perry Nuclear Power Plant License Renewal Application Revision 0, Supplement 3 (ADAMS Accession No. ML24206A150) 8.
Letter L-24-200, from Rod L. Penfield to the Nuclear Regulatory Commission, dated September 5, 2024, submitting the Perry Nuclear Power Plant License Renewal Application Revision 0, Supplement 4 Revision 1 (ADAMS Accession No. ML24249A123) 9.
Letter*L-24-179, from Rod L. Penfield to the Nuclear Regulatory Commission, dated October 21, 2024, submitting the Perry Nuclear Power Plant License Renewal Application Revision 0, Supplement 5 (ADAMS Accession No. ML24295A352)
- 10. Letter L-24-207, from Rod L. Penfield to the Nuclear Regulatory Commission, dated September 16, 2024, submitting the License Renewal Application for the Perry Nuclear Power Plant - Response to Requests for Additional Information - Set 1 (ADAMS Accession No. ML24260A266)
- 11. Letter L-24-208, from Rod L. Penfield to the Nuclear Regulatory Commission, dated October 2, 2024, submitting the License Renewal Application for the Perry Nuclear Power Plant -
Response to Requests for Additional Information - Round 1 (Set 2) (ADAMS Accession No. ML24276A083)
- 12. Letter L-24-226, from Rod L. Penfield to the Nuclear Regulatory Commission, dated October 31, 2024, submitting the License Renewal Application for the Perry Nuclear Power Plant
- Response to Request for Confirmatory Information - Set 1 (ADAMS Accession No. ML24305A134)
On July 3, 2023, Energy Harbor Nuclear Corp. submitted a license renewal application (LRA) for the Facility Operating License for the Perry Nuclear Power Plant, Unit No. 1 (PNPP) (Reference 1 ).
Subsequent to the submittal of the PNPP LRA, the PNPP Facility Operating License has been transferred to Vistra Operations Company LLC (VistraOps) per conforming license Amendment 203 and the license transfer transaction was closed on March 1, 2024 (Reference 2). The license transfer changes impacting the PNPP LRA are documented in the annual amendment required by 1 O CFR 54.21 (b ), submitted on July 3, 2024 (Reference 3).
During the Nuclear Regulatory Commission (NRC) staff's aging management audit of the PNPP LRA (Reference 4 ), the PNPP Staff agreed to supplement the LRA with clarifying information which has led to several LRA supplements (References 5 through 9). In addition, the PNPP Staff has provided responses to the NRC Staff's Requests for Additional Information (RAls) (References 10 and 11) and Request for Confirmatory Information (RCls) (Reference 12).
This letter provides Supplement 6 of the PNPP LRA, which provides LRA updates to address previous NRC Staff issues from the LRA audit or RAls related to Time-Limited Aging Analysis (TLAA) issues.
6555 SIERRA DRIVE IRVING, TEXAS 75039 o 214-812-4600 VISTRACORP.COM
Perry Nuclear Power Plant L-24-243 Page 3 of 3 For ease of reference, an index listing the supplemented LRA tables and the associated attachments is provided.
The regulatory commitments identified in Appendix A, Table A.3 of the PNPP LRA are not impacted by this LRA supplement. If there are any questions or if additional information is required, please contact Mr. Mark Bensi, PNPP License Renewal Manager at (440) 280-6179 or via email at Mark.Bensi@vistracorp.com.
I declare under penalty of perjury that the foregoing is true and correct. Executed on November 7, 2024.
- ja y
Rod L. Penfield '/
Attachments:
NRC Region Ill Administrator NRC Resident Inspector NRR Project Manager Executive Director, Ohio Emergency Management Agency, State of Ohio (NRC Liaison)
Utility Radiological Safety Board 6555 SIERRA DRIVE IRVING, TEXAS 75039 o 214-812-4600 VISTRACORP.COM
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachments Index Page 1 of 2 PNPP LRA Supplement 6 Attachments Index for ART/USE LRA Tables Attachment No.
LRA Section, Table or Appendix Supplemented Subject Source 1
Table 4.2-2 Chemistry values used as input to the ART and USE TLAA calculations Response to RAI NVIP RAI-10231-R1 (Vistra Letter L-24-208, ) and PNPP Condition Report 2024-02321 2
Table 4.2-3 Chemistry values used as input to the ART and USE TLAA calculations Response to RAI NVIP RAI-10231-R1 (Vistra Letter L-24-208, ) and PNPP Condition Report 2024-02321
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachments Index Page 2 of 2 The attachments incorporate the Perry Nuclear Power Plant LRA changes made via the LRA supplements, the annual update and RAI responses which were submitted via the following Vistra correspondence:
Therefore, the LRA updates depicted in the attachments are made on clean LRA pages that reflect the LRA updates from the previously docketed Vistra correspondence listed above.
Revisions to LRA tables may be shown by providing excerpts from each affected table, i.e., only the affected parts of the table may be included in the attachment.
Consistent with LRA supplements and the annual update, changes for the attachments are indicated by red, bolded and underlined text for added text and strikethrough for text to be deleted.
Note that text editing changes to some of the attachments such as spacing, font consistency changes etc., are not indicated via coloring as these are inconsequential.
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachment 1 Page 1 of 3 LRA Section: Table 4.2-2 LRA Page Number(s): 4.2-7 and 4.2-8
References:
TRP-059.3-02 and PNPP LRA Supplement 1 (Vistra Letter L-24-109, Attachments 7 and 8), NVIP RAI-10231-R1 and PNPP Response to LRA NRC RAIs Set 2 (Vistra Letter L-24-208, Attachment 3), and PNPP Condition Report (CR) 2024-02321 Description of Change: During their review of the PNPP LRA, the NRC staff noted that the
%Cu and %Ni content values for Lower Shell Plate (i.e., Heat Nos C2448-1, C2448-2 and A1068-1) in LRA Tables 4.2-2 and 4.2-3 were inconsistent with the check values (i.e.,
measurements taken from the product form) documented in the CMTRs. PNPP agrees that these material chemistry values used as input to the ART and USE calculations were non-conservative. As addressed in PNPP CR 2024-02321 and the response to the NRCs Set 2 RAIs (Vistra Letter L-24-208, Attachment 3), an update of the ART and USE calculations using the appropriate material chemistry values was to be completed. The ART and USE calculations have been updated, and so PNPP LRA Table 4.2-2 (as revised by PNPP LRA Supplement 1 (Vistra Letter L-24-109) is revised to provide the USE calculation results using the appropriate material chemistry values.
PNPP Section 3.4.2.2.3, as previously modified by PNPP LRA Supplement 1 (Vistra Letter L-24-109), Page 3.4-14, is revised as follows:
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachment 1 Page 2 of 3 Table 4.2-2 PNPP RPV Beltline USE Data for 54 EFPY Description Code No.
Heat No.
Cu (wt.
%)
Initial USE (ft-lb)
Fluence @
1/4t (n/cm2)
Decrease 54 EFPY USE (ft-lb)
Upper-Intermediate Shell Plate 23-1-3 C2432-1 0.05 61 1.68E+17 7.2 56 Upper-Intermediate Shell Plate 23-1-2 C2432-2 0.08 57 1.68E+17 7.2 52 Upper-Intermediate Shell Plate 23-1-1 C2453-1 0.08 75 1.68E+17 7.2 69 Lower-Intermediate Shell Plate 22-1-1 C2557-1 0.05 84 3.33E+18 14.6 71 Lower-Intermediate Shell Plate 22-1-3 A1155-1 0.06 114 3.33E+18 14.6 97 Lower-Intermediate Shell Plate 22-1-2 B6270-1 0.06 94 3.33E+18 14.6 80 Lower Shell Plate 21-1-1 C2448-1 0.06 0.08 61 3.35E+17 8.5 55 Lower Shell Plate 21-1-2 C2448-2 0.06 0.08 59 3.35E+17 8.5 53 Lower Shell Plate 21-1-3 A1068-1 0.08 56 3.35E+17 8.5 51 Upper-Intermediate Shell Axial Weld BG, BJ, BK 5P6214B 0.03 88 1.61E+17 7.1 81 Lower Intermediate Shell Axial Weld BD, BF 5P6214B 0.03 88 2.34E+18 13.4 76 Lower Intermediate Shell Axial Weld BD, BF 627260 0.06 104 2.34E+18 14.3 89 Lower Intermediate Shell Axial Weld BD, BF 626677 0.01 90 2.34E+18 13.4 77 Lower Intermediate Shell Axial Weld BE 5P6214B 0.03 88 3.28E+18 14.6 75 Lower Intermediate Shell Axial Weld BE 626677 0.01 90 3.28E+18 14.6 76
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachment 1 Page 3 of 3 Description Code No.
Heat No.
Cu (wt.
%)
Initial USE (ft-lb)
Fluence @
1/4t (n/cm2)
Decrease 54 EFPY USE (ft-lb)
Lower Intermediate Shell Axial Weld BE 624063 0.03 105 3.28E+18 14.6 89 Lower Intermediate Shell Axial Weld BE 627069 0.01 112 3.28E+18 14.6 95 Lower Shell Axial Weld BA, BB, BC 5P6214B 0.03 88 3.32E+17 8.5 80 Upper Int./Lower Int. Shell Girth Weld AC 492L4871 0.03 126 1.68E+17 7.2 116 Upper Int./Lower Int. Shell Girth Weld AC 04T931 0.03 148 1.68E+17 7.2 137 Upper Int./Lower Int. Shell Girth Weld AC 412L4711 0.02 163 1.68E+17 7.2 151 Upper Int./Lower Int. Shell Girth Weld AC 05T776 0.06 103 1.68E+17 7.7 95 Lower Int./Lower Shell Girth Weld AB 4P7216 (single wire) 0.03 82 3.55E+17 8.6 74 Lower Int./Lower Shell Girth Weld AB 4P7216 (tandem wire) 0.03 82 3.55E+17 8.6 74
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachment 2 Page 1 of 4 LRA Section: Table 4.2-3 LRA Page Number(s): 4.2-11 through 4.2-13
References:
TRP-059.3-02 and PNPP LRA Supplement 1 (Vistra Letter L-24-109, Attachments 7 and 8), NVIP RAI-1023-R1 and PNPP Response to LRA NRC RAIs Set 2 (Vistra Letter L-24-208, Attachment 3), and PNPP Condition Report (CR) 2024-02321 Description of Change: During their review of the PNPP LRA, the NRC staff noted that the
%Cu and %Ni content values for Lower Shell Plate (i.e., Heat Nos C2448-1, C2448-2 and A1068-1) in LRA Tables 4.2-2 and 4.2-3 were inconsistent with the check values (i.e.,
measurements taken from the product form) documented in the CMTRs. PNPP agrees that these material chemistry values used as input to the ART and USE calculations were non-conservative. As addressed in PNPP CR 2024-02321 and the response to the NRCs Set 2 RAIs (Vistra Letter L-24-208, Attachment 3), an update of the ART and USE calculations using the appropriate material chemistry values was to be completed. The ART and USE calculations have been updated, and so PNPP LRA Table 4.2-3 (as revised by PNPP LRA Supplement 1 (Vistra Letter L-24-109) is revised to provide the ART calculation results using the appropriate material chemistry values.
PNPP LRA Table 4.2-3, Pages 4.2-11 through 4.2-13, is revised as follows:
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachment 2 Page 2 of 4 Table 4.2-3 PNPP Beltline RPV Material ART Data for 54 EFPY Description Code No.
Heat No.
Initial RTNDT
(°F)
Chemistry Chemistry Factor
(°F)
Adjustments for 1/4t RTNDT (°F)
Margin Terms ART (°F)
Cu (wt.
%)
Ni (wt. %)
i (°F)
(°F)
Upper-Intermediate Shell Plate 23-1-3 C2432-1 0
0.05 0.61 31 4.8 0.0 2.4 9.6 Upper-Intermediate Shell Plate 23-1-2 C2432-2 10 0.08 0.61 51 7.9 0.0 3.9 25.7 Upper-Intermediate Shell Plate 23-1-1 C2453-1 0
0.08 0.63 51 7.9 0.0 3.9 15.7 Lower-Intermediate Shell Plate 22-1-1 C2557-1 10 0.05 0.63 36.43 25.4 0.0 8.5 52.4 Lower-Intermediate Shell Plate 22-1-3 A1155-1
-10 0.06 0.63 37 25.8 0.0 12.9 41.6 Lower-Intermediate Shell Plate 22-1-2 B6270-1
-30 0.06 0.63 37 25.8 0.0 12.9 21.6 Lower Shell Plate 21-1-1 C2448-1 10 0.06 0.08 0.65 0.69 37 51 8.7 11.9 0.0 4.3 6.0 27.3 33.9 Lower Shell Plate 21-1-2 C2448-2 10 0.06 0.08 0.65 0.69 37 51 8.7 11.9 0.0 4.3 6.0 27.3 33.9 Lower Shell Plate 21-1-3 A1068-1 10 0.08 0.67 0.64 51 11.9 0.0 6.0 33.9
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachment 2 Page 3 of 4 Description Code No.
Heat No.
Initial RTNDT
(°F)
Chemistry Chemistry Factor
(°F)
Adjustments for 1/4t RTNDT (°F)
Margin Terms ART (°F)
Cu (wt.
%)
Ni (wt. %)
i (°F)
(°F)
Upper-Intermediate Shell Axial Weld BG, BJ, BK 5P6214B
-40 0.03 0.94 43.28 6.5 0.0 3.2
-27.0 Lower Intermediate Shell Axial Weld BD, BF 5P6214B
-40 0.03 0.94 43.28 26.3 0.0 13.1 12.6 Lower Intermediate Shell Axial Weld BD, BF 627260
-30 0.06 1.08 82 49.8 0.0 24.9 69.6 Lower Intermediate Shell Axial Weld BD, BF 626677
-20 0.01 0.85 20 12.2 0.0 6.1 4.3 Lower Intermediate Shell Axial Weld BE 5P6214B
-40 0.03 0.94 43.28 30.0 0.0 14.0 18.0 Lower Intermediate Shell Axial Weld BE 626677
-20 0.01 0.85 20 13.9 0.0 6.9 7.7 Lower Intermediate Shell Axial Weld BE 624063
-50 0.03 1.00 41 28.4 0.0 14.2 6.9 Lower Intermediate Shell Axial Weld BE 627069
-60 0.01 0.94 20 13.9 0.0 6.9
-32.3 Lower Shell Axial Weld BA, BB, BC 5P6214B
-40 0.03 0.94 43.28 10.1 0.0 5.0
-19.8 Upper Int./Lower Int. Shell Girth Weld AC 492L4871
-50 0.03 0.98 41 6.3 0.0 3.2
-37.4
Perry Nuclear Power Plant LRA Supplement 6 L-24-243 Attachment 2 Page 4 of 4 Description Code No.
Heat No.
Initial RTNDT
(°F)
Chemistry Chemistry Factor
(°F)
Adjustments for 1/4t RTNDT (°F)
Margin Terms ART (°F)
Cu (wt.
%)
Ni (wt. %)
i (°F)
(°F)
Upper Int./Lower Int. Shell Girth Weld AC 04T931
-60 0.03 1.00 41 6.3 0.0 3.2
-47.4 Upper Int./Lower Int. Shell Girth Weld AC 412L4711
-60 0.02 0.91 27 4.2 0.0 2.1
-51.7 Upper Int./Lower Int. Shell Girth Weld AC 05T776
-70 0.06 0.92 82 12.6 0.0 6.3
-44.7 Lower Int./Lower Shell Girth Weld AB 4P7216 (single wire)
-20 0.03 0.79 41 9.9 0.0 5.0
-0.2 Lower Int./Lower Shell Girth Weld AB 4P7216 (tandem wire)
-20 0.03 0.81 41 9.9 0.0 5.0
-0.2