DCL-04-103, July 2004 Monthly Operating Report for Diablo Canyon Units 1 and 2

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July 2004 Monthly Operating Report for Diablo Canyon Units 1 and 2
ML042380454
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 08/16/2004
From: Becker J
Pacific Gas & Electric Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-04-103, GL-97-002
Download: ML042380454 (6)
v • d • e


Text

51 Pacifc Gas and E Flectrc 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 August 16, 2004 PG&E Letter DCL-04-103 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 OperatinQ ReDort for July 2004

Dear Commissioners and Staff:

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

Sincerely, James R. Becker Imp/3386/R0262673.

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
  • Wolf Creek

Enclosure 1 PG&E Letter DCL-04-103 JULY 2004, OPERATION SUMMARIES DIABLO CANYON POWER PLANT UNITS I AND 2 Summary of Unit 1 Operation Unit 1 began July in Mode 1 (Power Operation) at approximately 100 percent power.

On July 21, 2004, operators initiated an unplanned technical specification required.

shutdown and took the unit off-line to repair Component Cooling Water leak (crack) inside containment (Reference NRC Event Number 40890). On July 22, 2004, the reactor was taken to Mode 3 (Hot Standby). On July 24, 2004, after completing repairs, operators paralleled the unit to the grid, and initiated a ramp to full power. 'The unit ended the month in Mode 1 at approximately 100 percent power.

Summary of Unit 2 Operation Unit 2 began July in Mode 1 at approximately 100 percent power. On July 24, 2004, operators performed a planned ramp of the unit to approximately 50 percent reactor power to remove biofouling from the condenser tube sheet and water box. On July 25, 2004, after completing condenser maintenance, operators ramped the unit to approximately 100 percent power. The unit ended the month in Mode 1 at approximately 100 percent power.

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-04-103 OPERATING DATA REPORT DOCKET NO.: 50-275 UNIT NAME: Diablo Canyon Unit 1 DATE: 8/16/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: July 2004

1. IDesign Electrical Rating (Mwe - Net): 1 1,103
2. Maximum Dependable Capacity (Mwe - Net): 1,087 This Month YTD Cumulative
3. Number of Hours Reactor Critical: 703.8 3,328.4 146,315.2
4. Number of Hours Generator On-Line: 693.0 3,197.1 144,666.7 5.5 Unit Reserve Shutdown Hours: 0.0 0.0 0.0
6. Net Electrical Energy Generated (MWH): 745,643 3,189,612 149,981,342 1

Enclosure 2 PG&E Letter DCL-04-103 UNIT SHUTDOWNS DOCKET NO.: 50-275 UNIT NAME: Diablo Canyon Unit 1 DATE: 8/16/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: July 2004 NO. DATE TYPE DURATION REASON' METHOD CAUSE & CORRECTIVE (YMMDD) F (Forced) (HOURS) OF ACTIONS S(Scheduled)UTlNG COMMENTSSl 2 040721 F 51.0 D 1 U1Tech Spec Required Shutdown to repair a leak (crack) in the Component Cooling

'Water supply to the Reactor Coolant Pump 1-3 lube oil cooler.

Reference NRC Event Number 40890.

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-04-103 OPERATING DATA REPORT DOCKET NO.: 50-323 UNIT NAME: Diablo Canyon Unit 2 DATE: 8/16/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: July 2004

1. I Design Electrical Rating (MWe - Net): 1 1,119
2. Maximum Dependable Capacity (MWe - Net): 1,087 This Month YTD Cumulative
3. Number of Hours Reactor Critical: 744.0 5,111.0 143,760.9
4. Number of Hours Generator On-Line: 744.0 5,111.0 142,225.1
5. Unit Reserve Shutdown Hours: 0.01 0.0 0.0
6. Net Electrical Energy Generated (MWH): 802,027 5,489,223 149,906,440 3

Enclosure 2 PG&E Letter DCL-04-103 UNIT SHUTDOWNS DOCKET NO.: 50-323 UNIT NAME: Diablo Canyon Unit 2 DATE: 8/16/2004 COMPLETED BY: L. Parker TELEPHONE: (805) 545-3386 REPORT MONTH: July 2004 NO. DATE TYPE DURATION REASON1 METHOD CAUSE & CORRECTIVE (YYMMD ced) (HOURS) OF ACTIONS S(Schduld) SHUTTING COMMENTS N/AThere were no shutdowns this month.

1. Reason i 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

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