ML071860255

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 TAC MD0961, MD0962, MD0984, MD1002 and MD1003

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 Silas Kennedy, Sr. Resident Inspector Constellation Generation Group U.S. Nuclear Regulatory Commission 750 East Pratt Street P.O. Box 287 Baltimore, MD 21202 St. Leonard, MD 20685 Mr. John M. Heffley Kenneth Kolaczyk, Sr. Resident Inspector Senior Vice President and R.E. Ginna Nuclear Power Plant Chief Nuclear Officer U.S. Nuclear Regulatory Commission Constellation Generation Group 1503 Lake Road 1997 Annapolis Exchange Parkway Ontario, NY 14519 Suite 310 Annapolis, MD 21401 Leonard Cline, Sr. Resident Inspector U.S. Nuclear Regulatory Commission Mr. James A. Spina, Vice President P.O. Box 126 Calvert Cliffs Nuclear Power Plant, Inc. Lycoming, NY 13093 Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Mr. R. I. McLean, Manager Lusby, MD 20657-4702 Nuclear Programs Power Plant Research Program Mr. John T. Carlin, Vice President Maryland Department of Natural Resources R.E. Ginna Nuclear Power Plant 580 Taylor Avenue (B wing, 3rd floor)

R.E. Ginna Nuclear Power Plant, LLC Tawes State Office Building 1503 Lake Road Annapolis, MD 21401 Ontario, NY 14519 Mr. John P. Spath Mr. Keith J. Polson New York State Energy, Research, and Vice President Nine Mile Point Development Authority Nine Mile Point Nuclear Station, LLC 17 Columbia Circle P.O. Box 63 Albany, NY 12203-6399 Lycoming, NY 13093 Mr. Paul Eddy Mr. Carey Fleming, Esquire New York State Department of Sr. Counsel - Nuclear Generation Public Service Constellation Generation Group, LLC 3 Empire State Plaza, 10th Floor 750 East Pratt Street, 17th floor Albany, NY 12223 Baltimore, MD 21202 Mr. Jay S. Gaines Regional Administrator, Region I Director, Licensing U.S. Nuclear Regulatory Commission Calvert Cliffs Nuclear Power Plant 475 Allendale Road 1650 Calvert Cliffs Parkway King of Prussia, PA 19406 Lusby, MD 20657-4702

Constellation Energy Generation Group cc:

President Mr. James R. Evans Calvert County Board of LIPA Commissioners P.O. Box 129 175 Main Street Lycoming, NY 10393 Prince Frederick, MD 20678 Mr. Charles Donaldson, Esquire Ms. Kristen A. Burger, Esquire Assistant Attorney General Maryland People's Counsel New York Department of Law 6 St. Paul Centre 120 Broadway Suite 2102 New York, NY 10271 Baltimore, MD 21202-1631 C. Adrienne Rhodes Ms. Patricia T. Birnie, Esquire Chairman and Executive Director Co-Director State Consumer Protection Board Maryland Safe Energy Coalition 5 Empire State Plaza, Suite 2101 P.O. Box 33111 Albany, NY 12223-1556 Baltimore, MD 21218 Mr. Mark J. Wetterhahn, Esquire Charles Donaldson, Esquire Winston & Strawn Assistant Attorney General 1700 K Street, NW New York Department of Law Washington, DC 20006 120 Broadway New York, NY 10271 Mr. Roy Hickok NRC Technical Training Center Ms. Thelma Wideman, Director 5700 Brainerd Road Wayne County Emergency Management Chattanooga, TN 37411-4017 Office Wayne County Emergency Operations Mr. Michael Balboni Center Deputy Secretary for Public Safety 7336 Route 31 State Capitol, Room 229 Lyons, NY 14489 Albany, NY 12224 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