ML051370358

April 2005 Monthly Operating Report for San Onofre, Units 2 and 3

ML051370358
Person / Time
Site:	San Onofre
Issue date:	05/12/2005
From:	Scherer A Southern California Edison Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML051370358 (9)

Text

SOUTHERN CALIFORNIA A. Edward Schierer EDISON' Manager of Nuclear Regulatory Affairs An III,\ITR TO ~Company May 12, 2005 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject:

Docket Nos. 50-361 and 50-362 Monthly Operating Reports for April 2005 San Onofre Nuclear Generating Station, Units 2 and 3 Gentlemen:

As required by Technical Specification 5.7.1.4 of Facility Operating Licenses NPF-10 and NPF-15, this letter provides the Monthly Operating Reports for April 2005 for San Onofre Nuclear Generating Station, Units 2 and 3, Attachments 1 and 2, respectively.

The number of hours in the reporting period and other affected parts of this report have been appropriately adjusted for the change to Daylight Saving Time on April 3, 2005.

If you have any questions, please contact Mr. C. E. Williams at (949) 368-6707.

Sincerely, Attachments 1 and 2 cc: B. S. Mallett, Regional Administrator, NRC Region IV B. M. Pham, NRC Project Manager, San Onofre Units 2 & 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 & 3 P.O. Box 128 San Clementc, CA 92672 949-368-7501 Fax 949-368-7575

Attachment I Monthly Operating Report, April 2005 San Onofre Nuclear Generating Station, Unit 2

MONTHLY OPERATING REPORT Docket No: 50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS - 2 UNIT 2 Date: May 12,2005 April 2005 Completed by: C. E. Williams Telephone: (949) 368-6707 Page 2 of 4 OPERATING DATA REPORT 1 l Design Electrical Rating (Net MWe) l 1070 2 l Maximum Dependable Capacity (Net MWe) l 1070 This Month Yr-to-Date Cumulative 3 Number of Hours in Period 719 2,879 190,248 4 Number of Hours Reactor Was Critical

• 694 2,286 155,517 5 Hours Generator On-line

• 1 683 2,236 153,428 6 Unit Reserve Shutdown Hours

• 0 0 0 7 Net Electrical Energy Generated (MWh)

• I 754,654 2,386,183 164,570,163

• Rounded

MONTHLY OPERATING REPORT Docket No: 50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS - 2 UNIT 2 Date: May 12, 2005 April 2005 Completed by: C. E. Williams Telephone: (949) 368-6707 Page 3 of 4 UNIT SHUTDOWNS Number 2005-03 Date (YY/MM/DD) 05/04/17 Type (1) F Duration (Hours)* 36 Reason (2) A Method of Shutting Down the Reactor (3) 1 Cause/Corrective Actions/Comments Pre-planned manual reactor shutdown (Include LER number, if any) to repair steam generator E089 feedwater isolation valve 2HV4052. No LER is required.

• Rounded (1) F-Forced S-Scheduled (2) Reason: A-Equipment Failure (Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Examination F-Administrative G-Operational Error (Explain)

H-Other (Explain)

(3) Method: I-Manual 2-Manual Trip/Scram 3-Automatic TriplScram 4-Continuation from Previous Month (Explain) 5-Other (Explain)

MONTHLY OPERATING REPORT Docket No: 50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS - 2 UNIT 2 Date: May 12, 2005 April 2005 Completed by: C. E. Williams Telephone: (949) 368-6707 Page 4 of 4

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH Date Time 04/01/05 0000 Unit in Mode 1.

04/17/05 0301 Manually tripped Main Turbine at approximately 19% power.

04/17/05 0309 Manual reactor trip. Unit in Mode 3.

04/18/05 0339 Unit entered Mode 2.

04/18/05 0410 Reactor critical.

04/18/05 1037 Unit entered Mode 1.

04/18/05 1523 Main Generator synchronized to the grid.

04/19/05 1530 Unit in Mode 1 at essentially full power.

04/30/05 2400 Unit in Mode 1 at essentially full power.

Note: There were no challenges to the pressurizer safety valves during the month.

Attachment 2 Monthly Operating Report, April 2005 San Onofre Nuclear Generating Station, Unit 3

MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS - 3 UNIT 3 Date: May 12, 2005 April 2005 Completed by: C. E. Williams Telephone: (949) 368-6707 Page 2 of 4 OPERATING DATA REPORT I1 Design Electrical Rating (Net MWe) l 1080 2 lMaximum Dependable Capacity (Net MWe) l 1080 This Month Yr-to-Date Cumulative 3 Number of Hours in Period 719 2,879 184,799 4 Number of Hours Reactor Was Critical

• 719 2,879 152,669 5 Hours Generator On-line

• 719 2,879 150,443 6 Unit Reserve Shutdown Hours

• 0 0 0 1 7 Net Electrical Energy Generated (MWh)

• 810,096 3,076,185 159,594,030

• Rounded

MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS - 3 UNIT 3 Date: May 12, 2005 April 2005 Completed by: C. E. Williams Telephone: (949) 368-6707 Page 3 of 4 UNIT SHUTDOWNS Number lN/Al Date (YY/MM/DD) N/A Type (1) N/A Duration (Hours)* NIA Reason (2) NIA Method of Shutting Down the Reactor (3) N/A Cause/Corrective Actions/Comments NIA (Include LER number, if any)

• Rounded (1) F-Forced S-Scheduled (2) Reason: A-Equipment Failure (Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Examination F-Administrative G-Operational Error (Explain)

H-Other (Explain)

(3) Method: 1-Manual 2-Manual Trip/Scram 3-Automatic Trip/Scram 4-Continuation from Previous Month (Explain) 5-Other (Explain)

MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS - 3 UNIT 3 Date: May 12, 2005 April 2005 Completed by: C. E. Williams Telephone: (949) 368-6707 Page 4 of 4

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH Date Time 04/01/05 l 0000 I Unit in Mode 1.

04/30/05 1 2400 1 Unit in Mode 1.

Note: There were no challenges to the pressurizer safety valves during the month.