ML071070539
| ML071070539 | |
| Person / Time | |
|---|---|
| Site: | Millstone, Kewaunee, Surry, North Anna  |
| Issue date: | 05/03/2007 |
| From: | Siva Lingam NRC/NRR/ADRO/DORL/LPLII-1 |
| To: | Christian D Virginia Electric & Power Co (VEPCO) |
| Lingam, Siva NRR/DORL 415-1564 | |
| References | |
| GL-06-002, TAC MD0992, TAC MD0999, TAC MD1000, TAC MD1004, TAC MD1005, TAC MD1038, TAC MD1039 | |
| Download: ML071070539 (6) | |
Text
May 3, 2007 Mr. David A. Christian Senior Vice President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711
SUBJECT:
KEWAUNEE POWER STATION, MILLSTONE POWER STATION, UNIT NOS.
2 AND 3, NORTH ANNA POWER STATION, UNIT NOS. 1 AND 2, SURRY POWER STATION, UNIT NOS. 1 AND 2, RESPONSE TO GENERIC LETTER (GL) 2006-02, GRID RELIABILITY AND THE IMPACT ON PLANT RISK AND THE OPERABILITY OF OFFSITE POWER (TAC NOS. MD0992, MD0999, MD1000, MD1004, MD1005, MD1038 AND MD1039)
Dear Mr. Christian:
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.
D. Christian 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, (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 probability),
(6)
Interface with transmission system operator during extended plant maintenance.
By letters dated April 3, 2006 (ADAMS Accession No. ML060950094) and January 30, 2007 (ADAMS Accession No. ML070310282), you responded to the information request of GL 2006-02 and the subsequent RAI. 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 301-415-1564.
Sincerely,
/RA/
Siva P. Lingam, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-305, 50-336, 50-423, 50-338, 50-339, 50-280, and 50-281 cc: See next page
ML060950094) and January 30, 2007 (ADAMS Accession No. ML070310282), you responded to the information request of GL 2006-02 and the subsequent RAI. 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 301-415-1564.
Sincerely,
/RA/
Siva P. Lingam, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-305, 50-336, 50-423, 50-338, 50-339, 50-280, and 50-281 cc: See next page DISTRIBUTION:
Public RidsAcrsAcnwMailCenter RidsOgcRp LPL2-1 R/F RidsNrrDprPgcb(CJackson) RidsRgn2MailCenter(EGuthrie)
RidsNrrDorlLpl2-1(EMarinos) RidsNrrLAMOBrien RidsNrrDprPgcb(JRobinson)
RidsNrrPMSLingam RidsNrrDeEeeb(GWilson)
RidsNrrDorlLpl3-1(LRaghavan)
RidsNrrPMMChernoff RidsNrrPMJHughey RidsNrrDorlLpl1-2(HChernoff)
ADAMS Accession No. ML071070539 OFFICE NRR/LPL2-1/PM NRR/LPD2-1/LA NRR/DE/EEEB/BC NRR/LPL2-1/BC NAME SLingam:nc MOBrien GWilson EMarinos DATE 4/17/07 4/30/07 5/1/07 5/3/07
North Anna Power Station, Units 1 & 2; Surry Power Station, Units 1 & 2; Kewaunee Power Station; and Millstone Power Station, Unit Nos. 2 and 3 cc:
Mr. C. Lee Lintecum County Administrator Louisa County Post Office Box 160 Louisa, Virginia 23093 Ms. Lillian M. Cuoco, Esq.
Senior Counsel Dominion Resources Services, Inc.
Building 475, 5 th floor Rope Ferry Road Waterford, Connecticut 06385 Dr. W. T. Lough Virginia State Corporation Commission Division of Energy Regulation Post Office Box 1197 Richmond, Virginia 23218 Old Dominion Electric Cooperative 4201 Dominion Blvd.
Glen Allen, Virginia 23060 Mr. Chris L. Funderburk, Director Nuclear Licensing & Operations Support Dominion Resources Services, Inc.
Innsbrook Technical Center 5000 Dominion Blvd.
Glen Allen, Virginia 23060-6711 Office of the Attorney General Commonwealth of Virginia 900 East Main Street Richmond, Virginia 23219 Senior Resident Inspector North Anna Power Station U. S. Nuclear Regulatory Commission P. O. Box 490 Mineral, Virginia 23117 Mr. Jack Davis Site Vice President North Anna Power Station Virginia Electric and Power Company Post Office Box 402 Mineral, Virginia 23117-0402 Dr. Robert B. Stroube, MD, MPH State Health Commissioner Office of the Commissioner Virginia Department of Health Post Office Box 2448 Richmond, Virginia 23218 Mr. Donald E. Jernigan Site Vice President Surry Power Station Virginia Electric and Power Company 5570 Hog Island Road Surry, Virginia 23883-0315 Senior Resident Inspector Surry Power Station U. S. Nuclear Regulatory Commission 5850 Hog Island Road Surry, Virginia 23883 Chairman Board of Supervisors of Surry County Surry County Courthouse Surry, Virginia 23683
North Anna Power Station, Units 1 & 2; Surry Power Station, Units 1 & 2; Kewaunee Power Station; and Millstone Power Station, Unit Nos. 2 and 3 cc:
Resident Inspectors Office U.S. Nuclear Regulatory Commission N490 Hwy 42 Kewaunee, WI 54216-9510 Regional Administrator, Region III U.S. Nuclear Regulatory Commission Suite 210 2443 Warrenville Road Lisle, IL 60532-4351 David Zellner Chairman - Town of Carlton N2164 County B Kewaunee, WI 54216 Mr. Jeffery Kitsembel Electric Division Public Service Commission of Wisconsin PO Box 7854 Madison, WI 53707-7854 Ms. Leslie N. Hartz Dominion Energy Kewaunee, Inc.
Kewaunee Power Station N490 Highway 42 Kewaunee, WI 54216 Mr. Thomas L. Breene Dominon Energy Kewaunee, Inc.
Kewaunee Power Station N490 Highway 42 Kewaunee, WI 54216 Plant Manager Kewaunee Power Station N490 Highway 42 Kewaunee, WI 54216-9511 Edward L. Wilds, Jr., Ph.D.
Director, Division of Radiation Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 First Selectmen Town of Waterford 15 Rope Ferry Road Waterford, CT 06385 Charles Brinkman, Director Washington Operations Nuclear Services Westinghouse Electric Company 12300 Twinbrook Pkwy, Suite 330 Rockville, MD 20852 Senior Resident Inspector Millstone Power Station c/o U.S. Nuclear Regulatory Commission P. O. Box 513 Niantic, CT 06357 Mr. J. W. Bill Sheehan Co-Chair Nuclear Energy Advisory Council 19 Laurel Crest Drive Waterford, CT 06385 Ms. Nancy Burton 147 Cross Highway Redding Ridge, CT 00870
North Anna Power Station, Units 1 & 2; Surry Power Station, Units 1 & 2; Kewaunee Power Station; and Millstone Power Station, Unit Nos. 2 and 3 cc:
Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terrys Plain Road Simsbury, CT 06070 Mr. Joseph Roy Director of Operations Massachusetts Municipal Wholesale Electric Company P.O. Box 426 Ludlow, MA 01056 Mr. David W. Dodson Licensing Supervisor Dominion Nuclear Connecticut, Inc.
Building 475, 5th Floor Roper Ferry Road Waterford, CT 06385 Mr. J. Alan Price Site Vice President Dominion Nuclear Connecticut, Inc.
Building 475, 5th Floor Rope Ferry Road Waterford, CT 06385