ML20198T060

Monthly Operating Rept for Dec 1997 for Nine Mile Point Nuclear Station,Unit 1

ML20198T060
Person / Time
Site:	Nine Mile Point
Issue date:	12/31/1997
From:	Abbott R, Coleman D NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NMP91466, NUDOCS 9801260419
Download: ML20198T060 (5)

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NIAGARA MOHAWK G E N E R ATIO N BUSINESS GROUP NMP91466,1998 January 15 U.f). 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 1

Subject:

Operating Statistics and Shutdowns - December 1997 Gentlemen:

Submitted herewith is the Report of Operating Statistics, Unit Shutdowns and Power Reductions, and a Narrative of Operating Experience for December 1997 for the Nirie Mile Point Nuclear Station Unit #1.

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Very truly yours, 1

f)f$ke Richard B. Abbot:

Plant Manager - Unit One Ilh A

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Enclosures pc:

lI.J. Miller, Regional Administrator, Region 1 B.S. Norris, Senior Realdent inspector AN E

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I OPERATING DATA REPORT DOCKET No.: 50-220 DATE: 1/08/98 PREPARED 5'": D. E. Coleman TELEPIsuaE: (315) 349-2558 OPERATING STATUS

1. Unit Name: Nine Mile Point Unit #1

2. Reporting Period: Ikcember 1997 Notes

3. Licemed Thermal Power (MWI):

1850

4. Nameplate Rating (Gross MWe):

642

5. Design Electrical Rating (Net MWe):

613 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:

9. Power level To Which Restricted, if Any (Net MWe):

10. Resums For Restrictiom,if Any:

This Month Yr-to-Date Cumulative

11. Ilours in Reporting Period 744.0 8760.0 248,017.2

12. Number of Ilours Reactor Was Critical 547.5 4725.4 167,002.4

13. Reactor Reserve Shutocan llours 0

0 1,204.2

14. Ilours Generator On-Line 522.7 4622.6 162,978.4

15. Unit Reserve Shutdown lloura 0

0 20.4

16. Gross lhermal Energy Generated (MWil) 918,250.0 8,267,966.0 277,474,746.0

17. Gross Electrical Energy Generated (MWil) 313,861.0 2,774,437.0 92,352,893.0

!!L Net Electrical Energy Generated (MWil) 305,262.0 2,698,574.0 89,560,128.0

19. Unit Service Factor 70.3 52.8 65.7

20. Unit Availability Factor 70.3 52.8 65.7

21. Unit capacity Factor (Using MDC Net) 72.6 54.5 59.9

22. Unit Capacity Factor (Using DER Net) 66.9 50.3 58.3

23. Unit Forced Outage Rate 29.7 35.3 22.8 24, Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each):

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

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l NIAGARA MOHAWK POWER CORPORATION NINE MILE POINT NUCLEAR STA*Il0N UNIT #1 NARRATIVE OF OPERATING EXPERIENCE The station ope:4tcJ during the month of December 1997 with a Unit Availability Factor of 70.3% and... Vet De ign Electrical Capacity Factor of 66.9%. There were no challenges to the Electromatic Relief Valves. Reductions in Capacity Factor were due to the continued forced outage to rept r Eny tgency Condensers. The tube bundles for all 4 Emergency Condensers were replaced. The Outage was completed on December 10, 1997 @ 0516 when the unit was synchronized to the grid. The duration of the outage was 2,060 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> (85.8 days). Also, on December 19 & 20,1997, power was reduced to recover 4 control rods which were inserted for corrective maintenance work.

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i OPERATING DATA REPORT DOCKLT NO,: 50-22e a,

DATE:!/8/98..

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PREPARED BY: D. E. Coleman TELEPilONE: (315) 349-2998 i

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MONTil Decemtwr 1997 i

DAY

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

(Mwe Net) 1 0

17 619 2-0 18 619 s

- 3 0

19 601 4

0 20 582 5

0 21 617 6 i

.0 22 618 0 23 619 8

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25 618 l

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- 26 619 11 428 27 619

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12 594 28 618 13 543 29 619 14 615 30 619 15 618 31 618 16 619 t

INSTRUCTIONS

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On this firmat, list the average daily unit power level in Mwe-Net for each day in the reporting month. Compute to the nearest whole inegawatt.

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