ML23363A094
| ML23363A094 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 01/03/2024 |
| From: | Joel Wiebe Plant Licensing Branch III |
| To: | Constellation Energy Generation |
| Wiebe J | |
| References | |
| EPID L-2023-LRM-0067 | |
| Download: ML23363A094 (1) | |
Text
January 3, 2024 LICENSEE:
Constellation Energy Generation, LLC FACILITY:
Braidwood, Units 1 and 2
SUBJECT:
SUMMARY
OF OCTOBER 4, 2023, PRESUBMITTAL MEETING BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND CONSTELLATION ENERGY GENERATION, LLC, REGARDING REVISING TECHNICAL SPECIFICATION 3.7.9, ULTIMATE HEAT SINK (UHS) (EPID L-2023-LRM-0067)
On October 4, 2023, an observation public meeting was held between the staff of the U.S.
Nuclear Regulatory Commission (NRC) and representatives of Constellation Energy Generation, LLC (Constellation), via webinar. The purpose for this meeting was for Constellation to brief the NRC staff on a future request to revise Technical Specification 3.7.9, Ultimate Heat Sink (UHS), to use a diurnal curve methodology.
The meeting notice and agenda were published on the NRCs public webpage on August 29, 2023 (Agencywide Documents Access Management System (ADAMS) Accession No. ML23275A044). The licensee-furnished presentation materials are located at ADAMS Accession No. ML23272A062.
A list of meeting attendees/affiliations is provided as an Enclosure to this meeting summary.
Summary Constellation stated that actions are necessary to increase the UHS temperature margin because over the last several years environmental conditions have resulted in the UHS temperature approaching the current 102°F (degree Fahrenheit) limit. Constellations proposed solution is to use a maximum diurnal temperature that changes based on the time of day. The maximum diurnal temperature will be justified by engineering calculations.
The NRC staff asked clarifying questions regarding the proposed application and Constellation provided clarifications.
There were no final determinations or regulatory decisions made by the NRC staff during the meeting.
Public Participation No members of the public responded to the NRC staffs request for comments or questions and no meeting feedback forms were received.
Please direct any inquiries to me at 301-415-6606 or by e-mail at Joel.Wiebe@nrc.gov.
/RA/
Joel S. Wiebe, Senior Project Manager Plant Licensing Branch, III Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-456, 50-457
Enclosure:
List of Attendees cc w/encl: Listserv
Enclosure LIST OF ATTENDEES/AFFILIATION/ORGANIZATION
SUMMARY
OF OCTOBER 4, 2023, PRESUBMITTAL MEETING BETWEEN THE NRC AND CONSTELLATION ENERGY GENERATION, LLC, REGARDING REVISING TECHNICAL SPECIFICATION 3.7.9, ULTIMATE HEAT SINK (UHS)
ATTENDEES (16)
AFFILIATION/ORGANIZATION Jeff Whited Nuclear Regulatory Commission (NRC)
Joel Wiebe NRC Joshua Wilson NRC Gordon Curran NRC David Nold NRC Brian Wittick NRC Ahsan Sallman NRC Kevin Lueshen Constellation Energy Generation, LLC (Constellation)
Lisa Zurawski Constellation Richard Schliessmann Constellation Dane Brunswick Constellation Iba Ello Fletcher Constellation Danii Gantt Constellation Brian Seawright Constellation Krish Kripakaran Constellation Giovanni Panici Constellation Michael Snider Constellation
ML23363A094 OFFICE NRR/DORL/LPL3/PM NRR/DORL/LPL3/LA NRR/DORL/LPL3/BC NRR/DORL/LPL3/PM NAME JWiebe SRohrer JWhited JWiebe DATE 12/29/2023 1/2/24 1/2/24 1/3/24