ML20162A153
| ML20162A153 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/25/2020 |
| From: | Michael Wentzel Plant Licensing Branch II |
| To: | Jim Barstow Tennessee Valley Authority |
| Wentzel M | |
| References | |
| EPID L-2020-LRM-0023 | |
| Download: ML20162A153 (4) | |
Text
June 25, 2020 LICENSEE:
Tennessee Valley Authority FACILITY:
Browns Ferry Nuclear Plant, Units 1, 2 and 3
SUBJECT:
SUMMARY
OF JUNE 8, 2020, PARTIALLY CLOSED MEETING WITH TENNESSEE VALLEY AUTHORITY TO DISCUSS A PLANNED LICENSE AMENDMENT (EPID L-2020-LRM-0023)
On June 8, 2020, the U.S. Nuclear Regulatory Commission (NRC) staff held a partially closed meeting with representatives of the Tennessee Valley Authority (the licensee) to discuss a planned license amendment request (LAR) regarding the use of ATRIUM-11 fuel at Browns Ferry Nuclear Plant, Units 1, 2, and 3 (Browns Ferry). The meeting was partially closed to allow for the discussion of proprietary information. The meeting notice and agenda for this meeting, dated May 21, 2020, are available at Agencywide Documents Access and Management System (ADAMS) Accession No. ML20142A445. The licensees slides for the meeting are available at ADAMS Accession No. ML20156A281. A list of attendees is enclosed. No regulatory decisions were made at this meeting.
The licensees presentation described its approach for transitioning to the use of ATRIUM-11 fuel at Browns Ferry. The licensee stated that Framatome advanced methods would be needed to support the use of ATRIUM-11 fuel and that the LAR would propose the incorporation of those methods into the Browns Ferry technical specifications. Based on the licensees evaluations, no other changes to the technical specifications would be needed to support the transition. The licensee stated that the LAR would be based on previous, similar requests for Brunswick Steam Electric Plant, Units 1 and 2, and Susquehanna Steam Electric Station, Units 1 and 2. The licensee stated that its LAR would address the requests for additional information received for the two precedent requests. In addition, the licensee stated that the LAR would include a request to adopt TSTF-564, Revision 2, Safety Limit MCPR [Minimum Critical Power Ratio] (ADAMS Accession No. ML18297A361). Separate from this LAR, the licensee stated that it intended to submit a LAR to revise the spent fuel pool criticality analysis to support the receipt and storage of ATRIUM-11 fuel in the Browns Ferry spent fuel pool racks. The NRC staff asked why the LAR would be separate from the ATRIUM-11 LAR, to which licensee responded that it had evaluated the need to submit the LAR and decided it was necessary based on a statement in the safety evaluation supporting the issuance of the Extended Power Uprate amendments that indicated that the spent fuel pool criticality analysis bounded ATRIUM-10XM fuel. Further, the licensee stated that, because the revised criticality analysis is only necessary to support the receipt and storage of ATRIUM-11, it views the two requests as being separate.
The licensee identified two outstanding issues related to the planned LAR that need to be resolved. The first issue is related to whether or not the NRC staff intended to perform confirmatory TRACE analyses. The NRC staff responded that these analyses are usually performed to support interactions with the Advisory Committee on Reactor Safeguards and that
it needed to confirm whether that would be necessary for this LAR. The second issue relates to incorporation of an unapproved topical report addressing the Best-estimate Enhanced Option III (BEO-III) method to determine MCPR versus time. The topical report is currently under review by the NRC staff. The licensees preferred approach would be to incorporate the generically approved topical report as a part of the LAR. However, if the topical report approval timing does not support that, the licensee stated that it would most likely submit the LAR incorporating the methodology of the draft topical report and provide site-specific justification for its use at Browns Ferry. In that scenario, the licensee could update the LAR to reference the approved topical report, should it get approved in a timely fashion.
The NRC staff asked the licensee whether it intended to submit a LAR to update the Browns Ferry source term to account for the use of ATRIUM-11, similar to what was done at one of the precedent sites. The licensee responded that it would review the need to update the source term in accordance with the regulations at Section 50.59, Changes, tests and experiments, of Title 10 of the Code of Federal Regulations. Additionally, the NRC staff requested that the licensee include a discussion in the LAR of changes in the decay heat and any impacts to the containment analyses from the use of ATRIUM-11 fuel.
Representatives from Xcel Energy participated in the meeting as members of the public. No comments or public meeting feedback forms were received.
Please direct any inquiries to me at 301-415-6459 or Michael.Wentzel@nrc.gov.
/RA/
Michael J. Wentzel, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-259, 50-260, and 50-296
Enclosure:
List of Attendees cc: Listserv
Enclosure LIST OF ATTENDEES JUNE 8, 2020, PARTIALLY CLOSED MEETING WITH TENNESSEE VALLEY AUTHORITY REGARDING A PLANNED LICENSE AMENDMENT REQUEST FOR BROWNS FERRY NUCLEAR PLANT, UNITS 1, 2 AND 3 Name Organization Robert Beaton U.S. Nuclear Regulatory Commission (NRC)
Elijah Dickson NRC Matthew Hamm NRC Scott Krepel NRC Robert Lukes NRC Mathew Panicker NRC Ahsan Sallman NRC Michael Wentzel NRC Brandon Wise NRC Tom Eichenberg Tennessee Valley Authority (TVA)
Tracy Orf TVA Christine Setter TVA Greg Storey TVA Steve Mazurkiewicz Framatome Alan Meginnis Framatome Kris Mitchell Framatome Jeff Morris Framatome Doug Pruitt Framatome Earl Riley Framatome Robert Schnepp Framatome Dan Tinkler Framatome Jim Tolar Framatome Scott Tylinski Framatome Tony Will Framatome Richard Loeffler Xcel Energy Sean Martin Xcel Energy
- via e-mail OFFICE NRR/DORL/LPL2-2/PM*
NRR/DORL/LPL2-2/LA*
NRR/DORL/LPL2-2/BC*
NRR/DORL/LPL2-2/PM*
NAME MWentzel BAbeywickrama UShoop (KGreen for)
MWentzel DATE 06/18/2020 06/10/2020 06/24/2020 06/25/2020