ML071910447

Response to Generic Letter 2006-02, Grid Reliability and the Impact on Plant Risk and the Operability of Offsite Power

ML071910447
Person / Time
Site:	Pilgrim
Issue date:	07/20/2007
From:	James Kim NRC/NRR/ADRO/DORL/LPLI-1
To:	Balduzzi M Entergy Nuclear Operations
kim J, NRR/ADRO/DORL, 415-4125
References
GL-06-002, RG-1.155, TAC MD1017
Download: ML071910447 (7)

Text

July 20, 2007 Mr. Michael A. Balduzzi Sr. Vice President & COO Regional Operations, NE Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601

SUBJECT:

PILGRIM NUCLEAR POWER STATION - RESPONSE TO GENERIC LETTER (GL) 2006-02 GRID RELIABILITY AND THE IMPACT ON PLANT RISK AND THE OPERABILITY OF OFFSITE POWER (TAC NO. MD1017)

Dear Mr. Balduzzi:

On February 1, 2006, the U.S. Nuclear Regulatory Commission (NRC) issued 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 RA/RC 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.

By letter dated April 3, 2006, (ADAMS Accession No. ML060950434) you responded to the information request of GL 2006-02. Based on the information you provided, the NRC 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 at 301-415-4125.

Sincerely,

/RA/

James Kim, Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-293 cc: See next page

ML060950434) you responded to the information request of GL 2006-02. Based on the information you provided, the NRC 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 at 301-415-4125.

Sincerely,

/RA/

James Kim, Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-293 cc: See next page DISTRIBUTION:

PUBLIC RidsNrrDorlLpl1-1 RidsOgcRP GWilson LPLI-1 R/F RidsNrrLASLittle RidsAcrsAcnwMailCenter RidsNrrPMJKim RidsRgn1MailCenter JRobinson ACCESSION NO.: ML071910447 OFFICE LPL1-1/PM LPL1-1/LA EEEB/BC LPL1-1/BC NAME JKim SLittle GWilson MKowal DATE 7/10/07 7/18/07 7/20/07 7/20/07 Pilgrim Nuclear Power Station cc:

Regional Administrator, Region I Director, Massachusetts Emergency U. S. Nuclear Regulatory Commission Management Agency 475 Allendale Road Attn: James Muckerheide King of Prussia, PA 19406-1415 400 Worcester Road Framingham, MA 01702-5399 Senior Resident Inspector U. S. Nuclear Regulatory Commission Mr. William D. Meinert Pilgrim Nuclear Power Station Nuclear Engineer Post Office Box 867 Massachusetts Municipal Wholesale Plymouth, MA 02360 Electric Company P.O. Box 426 Chairman, Board of Selectmen Ludlow, MA 01056-0426 11 Lincoln Street Plymouth, MA 02360 Mr. Kevin H. Bronson Site Vice President Chairman Entergy Nuclear Operations Nuclear Matters Committee Pilgrim Nuclear Power Station Town Hall 600 Rocky Hill Road 11 Lincoln Street Plymouth, MA 02360-5508 Plymouth, MA 02360 Mr. Robert G. Smith Chairman, Duxbury Board of Selectmen General Manager, Plant Operations Town Hall Entergy Nuclear Operations 878 Tremont Street Pilgrim Nuclear Power Station Duxbury, MA 02332 600 Rocky Hill Road Plymouth, MA 02360-5508 Office of the Commissioner Massachusetts Department of Mr. Stephen J. Bethay Environmental Protection Director, Nuclear Safety Assurance One Winter Street Entergy Nuclear Operations Boston, MA 02108 Pilgrim Nuclear Power Station 600 Rocky Hill Road Office of the Attorney General Plymouth, MA 02360-5508 One Ashburton Place 20th Floor Mr. Bryan S. Ford Boston, MA 02108 Manager, Licensing Entergy Nuclear Operations MA Department of Public Health Pilgrim Nuclear Power Station Radiation Control Program 600 Rocky Hill Road Schrafft Center, Suite 1M2A Plymouth, MA 02360-5508 529 Main Street Charlestown, MA 02129 Secretary of Public Safety Executive Office of Public Safety One Ashburton Place Boston, MA 02108

Pilgrim Nuclear Power Station cc:

Mr. John T. Herron Sr. Vice President Ms. Charlene D. Faison Entergy Nuclear Operations Manager, Licensing 1340 Echelon Parkway Entergy Nuclear Operations Jackson, MS 39213 440 Hamilton Avenue White Plains, NY 10601 Mr. Oscar Limpias Vice President, Engineering Mr. Ernest J. Harkness Entergy Nuclear Operations Director, Oversight 440 Hamilton Avenue Entergy Nuclear Operations, Inc.

White Plains, NY 10601 1340 Echelon Parkway Jackson, MS 39213 Mr. John A. Ventosa GM, Engineering Mr. William C. Dennis Entergy Nuclear Operations Assistant General Counsel 440 Hamilton Avenue Entergy Nuclear Operations White Plains, NY 10601 440 Hamilton Avenue White Plains, NY 10601 Mr. Joseph P. DeRoy VP, Operations Support Ms. Stacey Lousteau Entergy Operations, Inc. Treasury Department 1340 Echelon parkway Entergy Services, Inc.

Jackson, MS 39213 639 Loyola Avenue New Orleans, LA 70113 Mr. Michael Kansler President & CEO/CNO Mr. James Sniezek Entergy Nuclear Operations 5486 Nithsdale Drive 1340 Echelon Parkway Salisbury, MD 21801-2490 Jackson, MS 39213 Mr. Michael D. Lyster Mr. John F. McCann 5931 Barclay Lane Director, Nuclear Safety & Licensing Naples, FL 34110-7306 Entergy Nuclear Operations 440 Hamilton Avenue Mr. Garrett D. Edwards White Plains, NY 10601 814 Waverly Road Kennett Square, PA 19348 Mr. John Doering P.O. Box 189 Parker Ford, PA 19457