ML071110005
| ML071110005 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 05/15/2007 |
| From: | Thorpe-Kavanaugh M NRC/NRR/ADRO/DORL/LPLIII-2 |
| To: | Jennifer Davis Detroit Edison |
| Thorpe-Kavanaugh, Meghan, LPL3-1 | |
| References | |
| GL-06-002, RG-1.155, TAC MD0981 05-341 | |
| Download: ML071110005 (5) | |
Text
May 15, 2007 Mr. Jack M. Davis Senior Vice President and Chief Nuclear Officer Detroit Edison Company Fermi 2 - 210 NOC 6400 North Dixie Highway Newport, MI 48166
SUBJECT:
FERMI 2 RESPONSE TO GENERIC LETTER 2006-02 GRID RELIABILITY AND THE IMPACT ON PLANT RISK AND THE OPERABILITY OF OFFSITE POWER (TAC NO. MD0981)
Dear Mr. Davis:
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 operating licenses for nuclear power reactors.
Jack M. Davis 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. ML060950506) and January 26, 2007 (ADAMS Accession No. ML070370204) 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 at 301-415-5735.
Sincerely, Adrian Muniz /RA/ for Meghan Thorpe-Kavanaugh, Project Manager Plant Licensing Branch III-2 Division of Operating Licensing Office of Nuclear Reactor Regulation Docket No. 50-341 cc: See next page
ML060950506) and January 26, 2007 (ADAMS Accession No. ML070370204) 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 at 301-415-5735.
Sincerely, Adrian Muniz /RA/ for Meghan Thorpe-Kavanaugh, Project Manager Plant Licensing Branch III-2 Division of Operating Licensing Office of Nuclear Reactor Regulation Docket No. 50-341 cc: See next page DISTRIBUTION:
PUBLIC RidsOGCRp RidsAcrsAcwnMailCenter RidsRgn3MailCenter RidsNrrPMMThorpe-Kavanaugh LPL3-1 RidsNrrDorlDpr RidsNrrDorlLpl3-1 JRobinson RidsNrrLATHarris TBloomer, EDO, Rgn III AMuniz ADAMS Accession No.: ML071110005 OFFICE NRR/LPL3-1/PM NRR/LPL3-2/PM NRR/LPL3-1/LA NRR/EEEB/BC NRR/LPL3-1/BC NAME MThorpe-Kavanaugh SSands THarris GWilson LRaghavan DATE 05/10/07 05/10/07 05/15/07 04/26/07 05/15/07
Fermi 2 cc:
David G. Pettinari Legal Department 688 WCB Detroit Edison Company 2000 2nd Avenue Detroit, MI 48226-1279 Michigan Department of Environmental Quality Waste and Hazardous Materials Division Radiological Protection and Medical Waste Section Nuclear Facilities Unit Constitution Hall, Lower-Level North 525 West Allegan Street P.O. Box 30241 Lansing, MI 48909-7741 U.S. Nuclear Regulatory Commission Resident Inspector's Office 6450 N Dixie Highway Newport, MI 48166 Mr. M. V. Yudasz, Jr., Director Monroe County Emergency Management Division 965 South Raisinville Road Monroe, MI 48161 Regional Administrator, Region III U.S. Nuclear Regulatory Commission Suite 210 2443 Warrenville Road Lisle, IL 60532-4351 Ronald W. Gaston Manager, Nuclear Licensing Detroit Edison Company Fermi 2 - 200 TAC 6400 North Dixie Highway Newport, MI 48166 Supervisor - Electric Operators Michigan Public Service Commission P.O. Box 30221 Lansing, MI 48909 Wayne County Emergency Management Division 10250 Middlebelt Road Detroit, MI 48242 Mr. Donald K. Cobb Assistant Vice President - Nuclear Generation Detroit Edison Company 6400 North Dixie Highway Newport, MI 48166