ML071370638
| ML071370638 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/06/2007 |
| From: | Geoffrey Miller NRC/NRR/ADRO/DORL/LPLI-2 |
| To: | St.Pierre G Florida Power & Light Energy Seabrook |
| Miller G, NRR/DORL, 415-2481 | |
| References | |
| GL-06-002, TAC MD1032 | |
| Download: ML071370638 (5) | |
Text
June 6, 2007 Mr. Gene F. St. Pierre, Site Vice President c/o James M. Peschel Seabrook Station P. O. Box 300 Seabrook, NH 03874
SUBJECT:
SEABROOK STATION, UNIT NO. 1 - RESPONSE TO GENERIC LETTER 2006-02 GRID RELIABILITY AND THE IMPACT ON PLANT RISK AND THE OPERABILITY OF OFFSITE POWER (TAC NO. MD1032)
Dear Mr. St. Pierre:
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 (TSs). (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:
(1)
Switchyard Minimum Voltage,
G. St. Pierre (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 letters dated April 3, 2006 (ADAMS Accession No.ML060950462), and January 31, 2007 (ADAMS Accession No.ML070430281), you responded to the information request of GL 2006-02 and the subsequent RAI. Based on the information you 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 301-415-2481 Sincerely,
/ra/
G. Edward Miller, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-443 cc: See next page
ML060950462), and January 31, 2007 (ADAMS Accession No.ML070430281), you responded to the information request of GL 2006-02 and the subsequent RAI. Based on the information you 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 301-415-2481 Sincerely,
/ra/
G. Edward Miller, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-443 cc: See next page DISTRIBUTION PUBLIC GWilson, NRR RidsRgn1MailCenter(GMatakas)
LPL1-2R/F RidsNrrRMGMiller RidsNrrDorlLplI-2(HChernoff)
RidsOgcRp RidsNrrLAMOBrien CJackson, NRR RidsNrrDorlDpr MMcConnell, NRR RidsAcrsAcnwMailCenter Accession Number: ML071370638 OFFICE LPL1-2/PM LPL1-2/LA DE/EEEB/BC LPL1-2/BC NAME GEMiller MOBrien GWilson HChernoff DATE 5/22/07 5/30/07 6/6/07 6/6/07
Seabrook Station, Unit No. 1 cc:
Mr. J. A. Stall Senior Vice President, Nuclear and Chief Nuclear Officer Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Peter Brann Assistant Attorney General State House, Station #6 Augusta, ME 04333 Resident Inspector U.S. Nuclear Regulatory Commission Seabrook Nuclear Power Station P.O. Box 1149 Seabrook, NH 03874 Town of Exeter 10 Front Street Exeter, NH 03823 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Office of the Attorney General One Ashburton Place, 20th Floor Boston, MA 02108 Board of Selectmen Town of Amesbury Town Hall Amesbury, MA 01913 Mr. Robert Poole Federal Emergency Management Agency Region I 99 High Street, 6th Floor Boston, MA 02110 Mr. Tom Crimmins Polestar Applied Technology One First Street, Suite 4 Los Altos, CA 94019 John Giarrusso Massachusetts Emergency Management Agency 400 Worcester Road Framingham, MA 01702-5399 Ms. Kelly Ayotte, Attorney General Mr. Orvil Fitch, Deputy Attorney General 33 Capitol Street Concord, NH 03301 Mr. Christopher M. Pope, Director Homeland Security & Emergency Mgmt.
New Hampshire Department of Safety Bureau of Emergency Management 33 Hazen Drive Concord, NH 03301 Mr. M. S. Ross, Managing Attorney Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Rajiv S. Kundalkar Vice President - Nuclear Engineering Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 James M. Peschel Regulatory Programs Manager FPL Energy Seabrook, LLC PO Box 300 Seabrook, NH 03874 Ms. Marjan Mashhadi Senior Attorney Florida Power & Light Company 801 Pennsylvania Ave., NW Suite 220 Washington, DC 20004
Seabrook Station, Unit No. 1 cc:
Mr. Mark E. Warner Vice President, Nuclear Operations Support Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420