ML071620401

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Response to Generic Letter 2006-02 Grid Reliability and the Impact on Plant Risk and the Operability of Offsite Power (Tac No. MD1010)
ML071620401
Person / Time
Site: Palisades Entergy icon.png
Issue date: 06/22/2007
From: Mahesh Chawla
NRC/NRR/ADRO/DORL/LPLIII-1
To: Balduzzi M
Entergy Nuclear Operations
Chawla M, NRR/DORL, 415-8371
References
GL-06-002, TAC MD1010
Download: ML071620401 (7)


Text

June 22, 2007 Mr. Michael Balduzzi Sr. Vice President, Regional Operations NE Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601

SUBJECT:

PALISADES - RESPONSE TO GENERIC LETTER 2006-02 GRID RELIABILITY AND THE IMPACT ON PLANT RISK AND THE OPERABILITY OF OFFSITE POWER (TAC NO. MD1010)

Dear Mr. Balduzzi:

On February 1, 2006, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2006-02, Grid Reliability and the Impact on Plant Risk and the Operability of Offsite Power (Agencywide Document Access and Management System (ADAMS) Accession No. ML060180352) to all holders of operating licenses for nuclear power reactors except those who have permanently ceased operation and have certified that fuel has been removed from the reactor vessel. GL 2006-02 notified licensees of the NRC staffs need for information in four areas as follows:

(1) use of protocols between the nuclear power plant (NPP) and the transmission system operator (TSO), independent system operator (ISO), or reliability coordinator/authority (RC/RA) and the use of transmission load flow analysis tools (analysis tools) by TSOs to assist NPPs in monitoring grid conditions to determine the operability of offsite power systems under plant technical specifications. (The TSO, ISO, or RC/RA is responsible for preserving the reliability of the local transmission system. In this GL, the term TSO is used to denote these entities);

(2) use of NPP/TSO protocols and analysis tools by TSOs to assist NPPs in monitoring grid conditions for consideration in maintenance risk assessments; (3) offsite power restoration procedures in accordance with Section 2 of NRC Regulatory Guide (RG) 1.155, Station Blackout; and (4) losses of offsite power caused by grid failures at a frequency equal to or greater than once in 20 site-years in accordance with RG 1.155.

Subsequent to the GL, the NRC issued a Request For Additional Information (RAI), (ADAMS Accession No. ML063380308) regarding the resolution of GL 2006-02 to 63 of 65 holders of operating licenses for nuclear power reactors. The RAI requested licensees respond to questions in the following areas:

M. Balduzzi (1) Switchyard Minimum Voltage; (2) Loss of Real-Time Contingency Analysis (RTCA) Capability; (3) Verification of RTCA Predicted Post-Trip Voltage; (4) Identification of Applicable Single Contingencies; (5) Seasonal Variation in Grid Stress (reliability and Loss-of-offsite power (LOOP)

Probability; (6) Interface With Transmission System Operator During Extended Plant Maintenance.

The transfer of ownership of Palisades Nuclear Plant from Consumers Energy Company (Consumers) to Entergy Nuclear Palisades (ENP) occurred on April 11, 2007. By letter(s) dated July 21, 2006 (ADAMS Accession No. ML062050349) and January 29, 2007 (ADAMS Accession No. ML070300054), Nuclear Management Company, LLC (NMC) (the former licensee),

responded to the information request of GL 2006-02 and the subsequent RAI. Based on the information which was provided, the staff has concluded that compliance is being maintained with NRC regulatory requirements governing electric power sources and associated personnel training and considers your response to GL 2006-02 complete.

If you have any questions, please contact me 301-415-8371.

Sincerely,

/RA/

Mahesh Chawla, Project Manager Plant Licensing Branch 3-1 Division of Operating Licensing Office of Nuclear Reactor Regulation Docket No. 50-255 cc: See next page

ML062050349) and January 29, 2007 (ADAMS Accession No. ML070300054), Nuclear Management Company, LLC (NMC) (the former licensee),

responded to the information request of GL 2006-02 and the subsequent RAI. Based on the information which was provided, the staff has concluded that compliance is being maintained with NRC regulatory requirements governing electric power sources and associated personnel training and considers your response to GL 2006-02 complete.

If you have any questions, please contact me 301-415-8371.

Sincerely,

/RA/

Mahesh Chawla, Project Manager Plant Licensing Branch 3-1 Division of Operating Licensing Office of Nuclear Reactor Regulation Docket No. 50-255 cc: See next page DISTRIBUTION PUBLIC LPL3-1 r/f RidsNrrDorlLpl3-1 RidsNrrPMMChawla RidsNrrLATHarris RidsOGCRp RidsAcrsAcnwMailCenter RidsNrrDirsltsb JRobinson RidsRgn3MailCenter RidsNrrDorlDpr ADAMS Accession No. ML071620401 OFFICE LPL3-1/PM LPL3-1/LA EEEB/BC LPL3-1/(A)BC NAME MChawla THarris GWilson TTate DATE 6/21/07 6/21/07 06/18/07 6/22/07

April 20, 2007 Palisades Plant cc:

Regional Administrator, Region III U.S. Nuclear Regulatory Commission Suite 210 2443 Warrenville Road Lisle, IL 60532-4351 Supervisor Covert Township P. O. Box 35 Covert, MI 49043 Office of the Governor P. O. Box 30013 Lansing, MI 48909 U.S. Nuclear Regulatory Commission Resident Inspector's Office Palisades Plant 27782 Blue Star Memorial Highway Covert, MI 49043 Michigan Department of Environmental Quality Waste and Hazardous Materials Division Hazardous Waste and Radiological Protection Section Nuclear Facilities Unit Constitution Hall, Lower-Level North 525 West Allegan Street P.O. Box 30241 Lansing, MI 48909-7741 Michigan Department of Attorney General Special Litigation Division 525 West Ottawa St.

Sixth Floor, G. Mennen Williams Building Lansing, MI 48913 Mr. Michael R. Kansler President & CEO/CNO Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601 Mr. John T. Herron Sr. Vice President Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601 Sr. Vice President, Engineering and Technical Services Entergy Nuclear Operations, Inc.

1340 Echelon Parkway Jackson, MS 39213 Mr. Bruce C. Williams Vice President, Oversight Entergy Nuclear Operations, Inc.

1340 Echelon Parkway Jackson, MS 39213 Mr. Christopher J. Schwarz Site Vice President Entergy Nuclear Operations, Inc.

Palisades Nuclear Plant 27780 Blue Star Memorial Highway Covert, MI 49043 General Manager, Plant Operations Entergy Nuclear Operations, Inc.

Palisades Nuclear Plant 27780 Blue Star Memorial Highway Covert, MI 49043 Mr. Oscar Limpias Vice President, Engineering Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601 Mr. John F. McCann Director, Nuclear Safety & Licensing Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601 April 20, 2007 Ms. Charlene D. Faison Manager, Licensing Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601 Mr. Ernest J. Harkness Director of Oversight Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601 Mr. William Dennis Assistant General Counsel Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601 Mr. Joseph DeRoy Vice President, Operations Support Entergy Nuclear Operations, Inc.

1340 Echelon Parkway Jackson, MS 39213 Laurie A. Lahti, Manager, Licensing Regulatory Affairs Entergy Nuclear Operations, Inc.

Palisades Nuclear Plant 27780 Blue Star Memorial Highway Covert, MI 49043