DCL-04-044, March 2004 Monthly Operating Report for Diablo Canyon Units 1 and 2

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

ML041140231
Person / Time
Site:	Diablo Canyon
Issue date:	04/15/2004
From:	Becker J Pacific Gas & Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-04-044, GL-97-002
Download: ML041140231 (6)

Text

WI Pacific Gas annd Electdc 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 Fax: 805.545.4234 April 15, 2004 PG&E Letter DCL-04-044 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 March 2004

Dear Commissioners and Staff:

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

Sincerely,

\-

James R. ecker snf/4509/R0256845 Enclosures cctenc: 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 Caltaway

• Comanche Peak

• Diablo Canyon

• Palo Verde

• South Texas Project

• Wolf Creel

Enclosure I PG&E Letter DCL-04-044 MARCH 2004, OPERATION SUMMARIES DIABLO CANYON POWER PLANT UNITS I AND 2 Summary of Unit 1 Operation Unit 1 began the month in Mode 1 (Power Operation) at approximately 85 percent power. On March 22, 2004, after 461 days at power, operators reduced power, separated the unit from the grid, and manually shut down the reactor to Mode 3 (hot standby) to start refueling outage 12 (1R12). The unit ended the month in No Mode with the core fully off-loaded (defueled).

Summary of Unit 2 Operation Unit 2 remained in Mode 1, at approximately 100 percent power, during March 2004.

There were no significant operational activities.

Actuations of Pressurizer Safety or Power-Operated Relief Valves There were no challenges to the pressurizer power-operated relief valves, pressurizer safety valves, or steam generator safety valves.

Enclosure 2 PG&E Letter DCL-04-044 OPERATING DATA REPORT DOCKET NO.: 50-275 UNIT NAME: Diablo Canyon Unit 1 DATE: 4/06/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: March 2004 I 1. I Design Electrical Rating (Mwe - Net): l 1,103 l 2. lMaximum Dependable Capacity (Mwe - Net): l 1,087 l This Month YTD Cumulative

3. Number of Hours Reactor Critical: 507.5 1923.5 144,910.3

4. Number of Hours Generator On-Line: 507.1 1,923.1 143,392.7

5. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

6. Net Electrical Energy Generated (MWH): 468,414 1,953,144 148,744,874 1

Enclosure 2 PG&E Letter DCL-04-044 UNIT SHUTDOWNS DOCKET NO.: 50-275 UNIT NAME: Diablo Canyon Unit 1 DATE: 4/06/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: March 2004 NO. DATE TYPE DURATION REASON' METHOD CAUSE & CORRECTIVE (YMMDD) F(Forced) (HOURS) OF ACTIONS S (Scheduled) SHUTTING COMMENTS DOWN 2 CMET 1 040322 S 236.9 C I Scheduled refueling shutdown at the end of L cycle 12 (1R12)

1. Reason 2. Method A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation from Previous Month E-Operator Training/License Examination 5-Other F-Administrative G-Operational Error (Explain)

H-Other (Explain) 2

Enclosure 2 PG&E Letter DCL-04-044 OPERATING DATA REPORT DOCKET NO.: 50-323 UNIT NAME: Diablo Canyon Unit 2 DATE: 4/06/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: March 2004 I 1. I Design Electrical Rating (MWe - Net): l 1,119 l

2. Maximum Dependable Capacity (MWe - Net): l 1,087 This Month YTD Cumulative

3. Number of Hours Reactor Critical: 744.0 2,160.0 140,809.9

4. Number of Hours Generator On-Line: 744.0 2,160.0 139,274.1

5. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

6. Net Electrical Energy Generated (MWH): 810,936 2,321,735 146,738,952 3

Enclosure 2 PG&E Letter DCL-04-044 UNIT SHUTDOWNS DOCKET NO.: 50-323 UNIT NAME: Diablo Canyon Unit 2 DATE: 4/06/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: March 2004 NO. DATE TYPE DURATION REASON' METHOD CAUSE & CORRECTIVE

.MMDD F(Foroed) (HOURS) OF ACTIONS (VYMM) S Sdceduled) SHUTTING COMMENTS DOWN2 N/A There were no shutdowns this month.

1. Reason 2. Method A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation from Previous Month E-Operator Training/License Examination 5-Other F-Administrative G-Operational Error (Explain)

H-Other (Explain) 4