ML20249B497

Monthly Operating Rept for May 1998 for Nine Mile Point Nuclear Station,Unit 1

ML20249B497
Person / Time
Site:	Nine Mile Point
Issue date:	05/31/1998
From:	Coleman D, Rich Smith NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NMP91471, NUDOCS 9806230225
Download: ML20249B497 (5)

Text

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NIAGARA MOHAWK G E N E R ATIO N

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BUSINESS GROUP June 15, 1998 NMP91471 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 RE:

Nine Mile Point Nuclear Station Unit #l Docket No. 50-220 DPR-63

Subject:

Operating Statistics and Shutdowns - May 1998 Gentlemen:

Submitted herewith is the Operating Data Report, Unit Shutdowns and Power Reductions, and a Narrative of Operating Experience for May 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, Robert G. Smith Plant Manager-NMP1

/lh Enclosures pc:

H.J. Miller, Regional Administrator, Region 1 g

B.S. Norris, Senior Resident inspector

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9806230225 900531 PDR ADOCK 05000220 R

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OPERATING DATA REPORT DOCKET NO.: 50-220 DATE: 6/05/98 PREPARED BY: D. E. Coleman TELEPIlONE: (315) 349-2558 OPERATING STATUS

1. Unit Name: Nine Mile Point Unit #1

2. Reporting Period: May 1998 Notes

3. Licensed Thermal Power (MWt):

1850

4. Nanteplate 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 (1tems Number 3 through 7) Since Last Report, Give Reasons:

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

10. Reasons For Restrictions, if Any:

This Month Yr-to-Date Cumulative

~ 11. Ilours in Reporting Period 744.0 3623.0 251,640.2

12. Number ofIlours Reactor Was Critical -

143.9 2972.2 169,974.6

13. Reactor Reserve Shutdown liours 0

0 1,204.2

14. Hours Generator On-Line 126.1 2948.3 165,927.1

15. Unit Reserve Shutdown llours 0

0 20.4

16. Gross Thermal Energy Generated (MWH)

'208,644.0 5,377,131.0 282,851,877.0

17. Gross Electrical Energy Generated (MWH) 69,069.0 1,842,245.0 94,195,138.0

18. Net Electrical Energy Generated (MWH) 67,160.0 1,794,491.0 91,354,619.0

' 19. Unit Service Factor 16.9 81.4 65.9

20. Unit Availability Factor 16.9 81.4 65.9

- 31. Unit Capacity Factor (Using MDC Net) 16.0 87.7 60.3

22. Unit Capacity Factor (Using DER Net) 14.7 80.8 58.6

23. Unit Forced Outage Rate 83.1 18.6 22.7

24. Shutdowns Sched'ded 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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OPERATING DATA REPORT NINE MILE POINT UNIT 1 DOCKET NO.: 50-220

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DATE:6/05/98

,4 PREPARED BY: D. E. Coleman TELEPilONE: (315) 349-2558 MONTH May 1998 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (Mwe-Net)

(Mwe-Net) 1 0

17 0

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18 0

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0-25 0

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11 0

27 393 12 0

28 563 13 0

29 605 14 0

30 606

- 15..

0 31 608 16 0

INSTRUCTIONS 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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~ NIAGAPA MOHAWK POWER CORPORATION NINE MILE POINT NUCLEAR STATION UNIT #1 I

NARRATIVE OF OPERATING EXPERIENCE The station operated during the month of May 1998 with a Unit Availability Factor of 16.9% and a Net Design Electrical Capacity Factor of 14.7%. Reductions in Capacity Factor were due to a forced ' outage which started on April 28,1998 and was completed l

on May 26,1998. The unit was removed from service due to inoperability of Control Room Emergency Ventilation System. Necessary modifications were made prior to staitup. The unit was placed back in service on May 26,1998 @ 1755.

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