ML20153B200

Monthly Operating Rept for Aug 1998 for Nmpns,Unit 1.With

ML20153B200
Person / Time
Site:	Nine Mile Point
Issue date:	08/31/1998
From:	Coleman D, Rich Smith NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NMP91476, NUDOCS 9809230010
Download: ML20153B200 (5)

Text

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, i NIAGARA MDHAWK ,

NWNE N MEAMMW ROAD. P.O. BOX 63, LYCOMING, NEW YORK 13090 GENERATlON BUSINESS GROUP i

September 14, 1998 NMP91476 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 RE: Nine Mile Point Nuclear Station Unit #1 Docket No. 50-220 DPR-63

Subject:

Operating Statistics and Shutdowns - August 1998 Gentlemen:

Submitted herewith is the Operating Data Report, Unit Shutdowns and Power Reductions, and a Narrative of Operating Experience for August 1998 for the Nine Mile Point Nuclear Station Unit #1. Submittal of this information complies with Section 6.9.1.c of the Unit #1 Technical Specifications.

Very truly yours, j

{

Robert G. Smith Plant Manager - NMP1 , Y\

llh /9 Enclosures /

pc: H.J. Miller, Regional Administrator, Region 1 B.S. Norris, Senior Resident inspector 9900230010 99083120 W ADOCK 0

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NIAGARA MOHAWK POWER CORPORATION NINE MILE POINT NUCLEAR STATION UNIT #1 NARRATIVE OF OPERATING EXPERIENCE The plant operated during the month of August 1998 with a Unit Availability Factor of 100.0% and a Net Design Electrical Capacity Factor of 95.2%. Reductions in Capacity Factor were due to elevated lake temperatures and corresponding reductions i plant efficiency. On August 21/22,1998, a control rod sequence exchange was performed.

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, ,e OPERATING DATA REPORT DOCKET NO : 50-220 DATE: 9/02/98 PREPARED BY: D. E. Coleman TELEPlIONE: (315) 349-2558 OPERATING STATUS

1. Unit Name: Nine Mile Point Unit #1

2. Reporting Period: August 1998 Notes

3. Licensed Thermal Power (MWt): 1850

4. Nameplate Rating (Gross Mwe): 642

5. Design Electrical RLting (Net Mwe): 613 1

6. Maximum Dependable Capacity (Gross Mwe): 584  !

7. Maximum Dependable Capacity (Net Mwe): 565

8. If Changes Occur in Capacity Ratings (Items Number 3 through 7) Since Last Report, Give Reasons:

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9. Power Level To Wliich Restricted, If Any (Net MWe):

10. Reasons For Restrictions,If Any:

This Month Yr-to-Date Cumulative

11. Ilours in Reporting Period 744.0 5831.0 253,848.2

12. Number of flours Reactor Was Critical 744.0 5180.2 172,182.6

13. Reactor Reserve Shutdown llours 0 0 1,204.2

14. Ilours Generator On-Line 744.0 5156.3 168,135.1

15. Unit Reserve Shutdown llours 0 0 20.4 l

16. Gross Thermal Energy Generated (MWII) 1,370,008.0 9,437,078.0 286,911,824.0 l

17. Gross Electrical Energy Generated (MWil) 446,629.0 3,173,265.0 95,526,158.0

18. Net Electrical Energy Generated (MWil) 434,191.0 3,088,746.0 92,648,874.0

19. Unit Service Factor 100.0 88.4 66.2

20. Unit Availability Factor 100.0 88.4 66.2

21. Us Capacity Fector (Using MDC Net) 103.3 93.8 60.6 j

22. Una C:;.4 city Factor (Using DER Net) 95.2 tt6.4 58.9 l

23. Unit Forced Outage Rate 0.0 11.6 22.5

24. Shutdowns Scheduled Over Next 6 Months (Type. Date and Duration of Each):

25. If shutdown At End of Report Period. Estimated Date of Startup:

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3 OPERATINO DATA REPORT NINE MILE POINT UNIT 1 DOCKET NO.: 50-220

, . DATE:9/02/98 PREPARED BY: D. E. Coleman TELEPHONE: (315) 349-2558 MONTl! August 1998 l

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1 (Mwe-Net) (Mwe-Net)  !

1 580 17 579 l

2 579 18 583 3 578 19 608 4 577 20 5%  ;

5 578 21 582 6 583 22 570  ;

7 603 23 586 8 600 24 583 l 9 601 25 579 10 587 26 579 I i1 576 27 577 i

12 602 28 575 l 13 584 29 575 14 584 30 575 15 581 31 575 16 579 l

i INSTRUCTIONS l On this format, list the average daily unit power level in Mwe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO: 50-220 NINE MILE POINT UNIT 1 -

UNIT NAME- NMP#1 *'

DATE: 9/02/98 REPORT MONTH-August 1998 PREPARED BY: D.E.Coleman TELEPHONE: (315) 349-2558 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to pgo; Date Type' (Hours) Reason8 Down Reactor8 Report # Code' Code' Prevent Recurrence No entries this month.

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1 2 3 4 5 F. Arced Reason: Method: Exhibit G -Instructions Exhibit 1-Same Source S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File (NUREG-0161)

D-Regulatory Restriction 4-Other (Explain)

E-Operator Training & Ucense Exam F-Administrative G-Operational Error (Explain)

H-Other (Explain)

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