ML052280344

July 2005 Monthly Operating Report for Davis-Besse Nuclear Power Station Unit 1

ML052280344
Person / Time
Site:	Davis Besse
Issue date:	08/11/2005
From:	Allen B FirstEnergy Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
3178
Download: ML052280344 (6)

Text

Davis-Besse Nuclear Power Station F~rstEa 5501 North State Route 2 Oak Harbo; Ohio 43449-9760 Docket No. 50-346 License No. NPF-3 Serial No. 3178 August 11, 2005 United States Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555-0001 Monthly Operating Report, July 2005 Davis-Besse Nuclear Power Station Unit I Ladies and Gentlemen:

Enclosed is a copy of the Monthly Operating Report for the Davis-Besse Nuclear Power Station for the month of July 2005.

Please direct questions to Brian D. Boles, Manager- Plant Engineering, at (419) 321-7302.

Very truly yours, Barry S. Allen Director - Site Operations Davis-Besse Nuclear Power Station KJA/s Enclosures cc: DB-I NRC/NRR Project Manager DB-l Senior Resident Inspector NRC Region III Administrator

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Docket No. 50-346 License No. NPF-3 Serial No. 3178 Distribution bcc: B. S. Allen, DB-2101 A. W. Bless, DB-3065 B. D. Boles, DB-1056 D. R. Converse, DB-3310 J. J. Grabnar, DB-3210 L. J. Kovach, DB-1056 A. R. Miller, DB-1056 G. C. Wilson, DB-2103 D. R. Wuokko, DB-3065 CNRB Administrator D. W. Jenkins, GO-18 R. Runo, GO-14 T. Schneider, A-GO-17 F. Heizer, PUCO B. Lewis, Utility Data Institute, Inc.

R. Schomaker, Framatome American Nuclear Insurers INPO Records Center Ohio EPA - DERR Compliance Utility Radiological Safety Board

Docket No. 50-346 License No. NPF-3 Serial No. 3178 Page 1 of 1 COMMITMENT LIST The following list identifies those actions committed to by the Davis-Besse Nuclear Power Station in this document. Any other actions discussed in the submittal represent intended or planned actions by Davis-Besse. They are described only as information and are not regulatory commitments. Please notify the Manager - Regulatory Compliance (419) 321-8585 at Davis-Besse of any questions regarding this document or associated regulatory commitments.

Commitments Due Date None N/A

I Docket No. 50-346 License No. NPF-3 Serial No. 3178 Enclosure 2 Monthly Operating Report for July 2005 (two pages to follow)

OPERATING DATA REPORT DOCKET NO. 50-0346 UNIT NAME Davis-Besse Unit 1 DATE 08/01/05 COMPLETED BY A. R. Miller TELEPHONE 419-321-7824 REPORTING PERIOD July, 2005 YEAR TO MONTH DATE CUMULATIVE 1 Design Electrical Rating (MWe-Net). 906 The nominal net electrical output of the unit specified by the utility and used for the purpose of plant design.

2 Maximum Dependable Capacity (MWe-Net). 882 The gross electrical output as measured at the output terminals of the turbine-generator during the most restrictive seasonal conditions minus the normal station service loads.

3 Number of Hours the Reactor Was Critical. 744.0 4,530.9 158,977.2 The total number of hours during the gross hours of the reporting period that the reactor was critical.

4 Number of Hours the Generator Was On Line. 744.0 4,514.0 156,180.1 (Also called Service Hours). The total number of hours during the gross hours of the reporting period that the unit operated with breakers closed to the station bus.

The sum of the hours the generator was on line plus the total outage hours should equal the gross hours In the reporting period.

5 Unit Reserve Shutdown Hours. 0.0 0.0 5,532.0 The total number of hours during the gross hours of the reporting period that the unit was removed from service for economic or similar reasons but was available for operation.

6 Net Electrical Energy (MWH). 651,020 4,001,583 128,911,806 The gross electrical output of the unit measured at the output terminals of the turbine-generator minus the normal station service loads during the gross hours of the reporting period, expressed in mega-watt hours. Negative quantities should not be used.

.1 UNIT SHUTDOWNS DOCKET NO. 50-346 UNIT NAME Davis-Besse #1 DATE 8/01/05 COMPLETED BY A.R. Miller REPORTING PERIOD: July, 2005 TELEPHONE (419) 321-7824 NO. DATE TYPE DURATION REASON (1) METHOD OF CAUSE/CORRECTIVE ACTIONS F: FORCED (HOURS) SHUTTING S: SCHEDULED DOWN (2) COMMENTS No Unit Shutdowns

SUMMARY

The reactor was at 100% power for the majority of the month. On July 3, the unit downpowered to approximately 93% for Main Turbine Control Valve and Combined Intermediate Valve Testing. On July 31, the unit downpowered to approximately 90% for Main Turbine Control Valve Testing, Main Turbine Combined Intermediate Valve Testing, Main Turbine Stop Valve Testing, and Control Rod Drive Quarterly Exercise Testing.

(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 E-Operator Training & Ucense Exam 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)