DCL-04-155, October 2004 Monthly Operating Report for Diablo Canyon Units 1 and 2

October 2004 Monthly Operating Report for Diablo Canyon Units 1 and 2

ML043240110
Person / Time
Site:	Diablo Canyon
Issue date:	11/12/2004
From:	Becker J Pacific Gas & Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-04-155, GL-97-002, OL-DPR-80, OL-DPR-82
Download: ML043240110 (3)

Text

WI Pacific Gasand R's Electric Company James R.Becker Diablo Canyon Power Plant Vice President-Diablo Canyon PO. Box 56 Operations and Station Director Avila Beach, CA 93424 805.545.3462 November 12, 2004 Fax: 805.545.4234 PG&E Letter DCL-04-155 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Monthly Operating Report for October 2004

Dear Commissioners and Staff:

Enclosed is the Monthly Operating Report for Diablo Canyon Power Plant, Units 1 and 2, for October 2004. This report is submitted in accordance with Technical Specification 5.6.4 and NRC Generic Letter 97-02.

Sincerely, James R. ce Imp/3386/R0265724 Enclosures cc/enc: Paul R. Fox, American Nuclear Insurers Robert D. Glynn, Jr.

Bruce S. Mallett, NRC Regional Administrator, Region IV David L. Prouix, NRC Senior Resident Inspector Gregory M. Rueger Girija S. Shukla, NRC Project Manager INPO Record Center A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

• Comanche Peak

• Diablo Canyon

• Palo Verde

• South Texas Project

• Wolf Creek I

OPERATING DATA REPORT DOCKET NO. 50-275 UNIT NAME Diablo Canyon 1 DATE i,4vemDer U3, ,zU4 COMPLETED BY Larry Parker TELEPHONE 805-545-3386 REPORTING PERIOD: October 2004

1. Design Electrical Rating 1,103.00

2. Maximum Dependable Capacity (MWe-Net) 1,087.00 This Month Yr-to-Date Cumulative

3. Number of Hours the Reactor was Critical :745.00 5,537.37 148,524.17

4. Number of Hours Generator On-line - . 745.00 - 5,406.11 146,875.71

5. Reserve Shutdown Hours

• 0.00 0.00 0.00

6. Net Electrical Energy Generated (MWHrs) 820.255.00 - 5.626.884.00 152,418,614.00 UNIT SHUTDOWNS Type Method of N F: Forced Duration R . Shutting Cause & Corrective Action No. Date S: Scheduled (Hours) Reason 1 Down 2 Comments

SUMMARY

Unit 1 remained in Mode 1 (Power Operation) at approximately 100 percent power during October.

I 2 Reason: Method:

A Equipment Failure (Explain) I Manual B Maintenance or Test - 2 Manual Trip/Scram C Refueling 3 Automatic TriplScram D Regulatory Restriction 4 Continuation E Operator Training & License Examination 5 Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

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OPERATING DATA REPORT DOCKET NO. 50-323 UNIT NAME Diablo Canyon 2 DATE November 03, 2004 COMPLETED BY Larry Parker TELEPHONE 805-545-3386 REPORTING PERIOD October 2004

1. Design Electrical Rating 1,119.00

2. Maximum Dependable Capacity (MWe-Net) 1,087.00 This Month Yr-to-Date Cumulative

3. Number of Hours the Reactor was Critical 579.10 7,154.10 145,804.00

4. Number of Hours Generator On-line 578.37 7,153.37 144,267.50

5. Reserve Shutdown Hours 0.00 0.00 0.00

6. Net Electrical Energy Generated (MWHrs) 616,085.00 7,667,389.00 152,084,606.00 UNIT SHUTDOWNS Type Method of F: Forced Duration Shutting Cause &Corrective Action No. Date S: Scheduled (Hours Reason 1 2

_Down Comments 1 10125/2004 S 166.63 C 1 Unit 2 Refueling Outage 12 is scheduled to I__ I _ I_ I_ I_ I_complete in December.

SUMMARY

Unit 2 began October in Mode 1 (Power Operation) at approximately 100 percent power. On October 3, 2004, operators initiated a planned ramp of the unit to approximately 50 percent power in order to remove biofouling from the main condenser tube sheet and water box. On October 4, 2004, following maintenenace, operators initiated a ramp to return the unit to approximately 100 percent power. On October 25, 2004, after 559 days at power, operators separated Unit 2 from the grid to begin refueling outage 12. Unit 2 ended the month in Mode 6 (Refueling).

I 2 Reason: Method:

A Equipment Failure (Explain) I Manual B Maintenance or Test 2 Manual Trip/Scram C Refueling 3 Automatic Trip/Scram D Regulatory Restriction 4 Continuation E Operator Training & License Examination 5 Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

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