ML071860255
| ML071860255 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs, Nine Mile Point, Ginna  |
| Issue date: | 07/26/2007 |
| From: | Pickett D NRC/NRR/ADRO/DORL/LPLI-1 |
| To: | Heffley J Constellation Generation Group |
| Pickett D, NRR/DORL, 415-1364 | |
| References | |
| GL-06-002, TAC MD0961, TAC MD0962, TAC MD0984, TAC MD1002, TAC MD1003 | |
| Download: ML071860255 (5) | |
Text
July 26, 2007 Mr. John M. Heffley Senior Vice President and Chief Nuclear Officer Constellation Generation Group 1997 Annapolis Exchange Parkway Suite 310 Annapolis, MD 21401
SUBJECT:
CONSTELLATION GENERATION GROUP - CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS. 1 AND 2, R.E. GINNA NUCLEAR POWER PLANT, NINE MILE POINT NUCLEAR 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. MD0961, MD0962, MD0984, MD1002 AND MD1003)
Dear Mr. Heffley:
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 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
J. M. Heffley 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 (LOOP) Probability; (6) Interface With Transmission System Operator During Extended Plant Maintenance.
By letters dated April 3, 2006 (ADAMS Accession No. ML060970108), and January 31, 2007 (ADAMS Accession No. ML070380101), 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 301-415-1364.
Sincerely,
/RA/
Douglas V. Pickett, Senior Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-317, 50-318, 50-244, 50-220, and 50-410 cc: See next page
ML060970108), and January 31, 2007 (ADAMS Accession No. ML070380101), 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 301-415-1364.
Sincerely,
/RA/
Douglas V. Pickett, Senior Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-317, 50-318, 50-244, 50-220, and 50-410 cc: See next page DISTRIBUTION:
PUBLIC RidsNrrPMDPickett RidsNrrLASLittle LPLI-1 R/F RidsNrrDorlLpl1-1 RidsNrrDeEeeb RidsOgcRp RidsNrrAcrsAcnwMailCenter RidsNrrDprPgcb RidsNrrPMMDavid JRobinson Accession: ML071860255 OFFICE NRR/LPL1-1 NRR/LPL1-1/PM NRR/LPL1-1/PM NRR/LPL1-1/LA NRR/EEEB/BC NRR/LPL1-1/BC NAME DWoodyatt DPickett MDavid SLittle GWilson MKowal DATE 7/ 19 /2007 7/ 24 /2007 7/ 24 /2007 7/ 18 /2007 7/25/2007 7/26/2007
Constellation Energy Generation Group Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2 R.E. Ginna Nuclear Power Plant Nine Mile Point Nuclear Station, Unit Nos. 1 and 2 cc:
Mr. Michael J. Wallace, President Constellation Generation Group 750 East Pratt Street Baltimore, MD 21202 Mr. John M. Heffley Senior Vice President and Chief Nuclear Officer Constellation Generation Group 1997 Annapolis Exchange Parkway Suite 310 Annapolis, MD 21401 Mr. James A. Spina, Vice President Calvert Cliffs Nuclear Power Plant, Inc.
Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702 Mr. John T. Carlin, Vice President R.E. Ginna Nuclear Power Plant R.E. Ginna Nuclear Power Plant, LLC 1503 Lake Road Ontario, NY 14519 Mr. Keith J. Polson Vice President Nine Mile Point Nine Mile Point Nuclear Station, LLC P.O. Box 63 Lycoming, NY 13093 Mr. Carey Fleming, Esquire Sr. Counsel - Nuclear Generation Constellation Generation Group, LLC 750 East Pratt Street, 17th floor Baltimore, MD 21202 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Silas Kennedy, Sr. Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 287 St. Leonard, MD 20685 Kenneth Kolaczyk, Sr. Resident Inspector R.E. Ginna Nuclear Power Plant U.S. Nuclear Regulatory Commission 1503 Lake Road Ontario, NY 14519 Leonard Cline, Sr. Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 126 Lycoming, NY 13093 Mr. R. I. McLean, Manager Nuclear Programs Power Plant Research Program Maryland Department of Natural Resources 580 Taylor Avenue (B wing, 3rd floor)
Tawes State Office Building Annapolis, MD 21401 Mr. John P. Spath New York State Energy, Research, and Development Authority 17 Columbia Circle Albany, NY 12203-6399 Mr. Paul Eddy New York State Department of Public Service 3 Empire State Plaza, 10th Floor Albany, NY 12223 Mr. Jay S. Gaines Director, Licensing Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702
Constellation Energy Generation Group cc:
President Calvert County Board of Commissioners 175 Main Street Prince Frederick, MD 20678 Ms. Kristen A. Burger, Esquire Maryland People's Counsel 6 St. Paul Centre Suite 2102 Baltimore, MD 21202-1631 Ms. Patricia T. Birnie, Esquire Co-Director Maryland Safe Energy Coalition P.O. Box 33111 Baltimore, MD 21218 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 Ms. Thelma Wideman, Director Wayne County Emergency Management Office Wayne County Emergency Operations Center 7336 Route 31 Lyons, NY 14489 Ms. Mary Louise Meisenzahl Administrator, Monroe County Office of Emergency Preparedness 1190 Scottsville Road, Suite 200 Rochester, NY 14624 Supervisor Town of Scriba Route 8, Box 382 Oswego, NY 13126 Mr. James R. Evans LIPA P.O. Box 129 Lycoming, NY 10393 Mr. Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 C. Adrienne Rhodes Chairman and Executive Director State Consumer Protection Board 5 Empire State Plaza, Suite 2101 Albany, NY 12223-1556 Mr. Mark J. Wetterhahn, Esquire Winston & Strawn 1700 K Street, NW Washington, DC 20006 Mr. Roy Hickok NRC Technical Training Center 5700 Brainerd Road Chattanooga, TN 37411-4017 Mr. Michael Balboni Deputy Secretary for Public Safety State Capitol, Room 229 Albany, NY 12224