ML20199K933

Monthly Operating Rept for Dec 1998 for Nine Mile Point Nuclear Station,Unit 1.With

ML20199K933
Person / Time
Site:	Nine Mile Point
Issue date:	12/31/1998
From:	Close R, Rich Smith NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NMP91481, NUDOCS 9901270070
Download: ML20199K933 (5)

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.Ni apra $ Mohawk' January 15, 1999 NMP91481 l i

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U.S. Nuclear Regulatory Commission I Attention: Document Control Desk Washington, D.C. 20555 1 l

RE: Nine Mile Point Nuclear Station Unit #1 Docket No. 50-220 DPR-63  !

Subject:

Operating Statistics and Shutdowns - December 1998 l

Gentlemen:

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

Very truly yours, 7

/drd 4'M Robert G. Smith Plant Manager- NMP1

/lh Enclosures pc: H.J. Miller, Regional Administrator, Region 1 G.K. Hunegs, Senior Resident inspector 9901270070 981231 PDR ADOCK 05000220 R pg i

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NIAGARA MOHAWK POWER CORPORATION i I

NINE MILE POINT NUCLEAR STATION UNIT #1 NARRATIVE OF OPERATING EXPERIENCE i

The plant operated during the month of December 1998 with a Unit Availability Factor  ;

of 100.0% and a Net Design Electrical Capacity Factor of 100.2%. There were no -  ;

challenges to the Electromatic Relief Valves or Safety Valves. Reductions in Capacity  ;

Factorwere negligible.

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

UNIT NAME: NMP#1 DATE: 1/08/98 REPORT MONTH-December 1998 PREPARED BY: R. S. Close TELEPHONE- (315) 349-1282 Method of Ucensee Cause & Corrective Duration Shutting Event System Component Action to No-Date Type' (H a rs) Reas d h RW# W W hm Rum Reactors No entries this month.

1 2 3 4 5 F: Forced Reason: Method: Exhibit G - Instructions Exhibit I-Same Source S: Scheduled A-Equipment Faiture (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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'I OPERATING DATA REPORT DOCKET NO.: 50-220  !

DATE: 1/08/99 PREPARED BY: R.S. Close TELEPlIONE: (315) 349-1282 l OPERATING STATUS  !

1. Unit Name: Nine Mile Point Unit #1

2. Reporting Period: December 1998 Notes

3. Licensed Thermal Power (MWt): 1850

4. Nameplate Rating (Gross Mwe): 642 l l S. Design Electrical Rating (Net Mwe): 613 l

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

- 7. Maximum Dependable Capacity (Net Mwe): 565

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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 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 8760.0 256,777.2

12. Number of Ilours Reactor Was Critical 744.0 8109.2 175,111.6

13. Reactor Reserve Shutdown flours 0 0 1,204.2 14.11ours Generator On Line 744.0 8085.3 171,064.1 j 15. Unit Reserve Shutdown llours 0 0 20.4 l 16. Gross Thermal Energy Generated (MWII) 1,371,352.0 14,828,243.0 292,302,989.0

17. Gross Electrical Energy Generated (MWII) 469,283.0 4,978,710.0 97,331,603.0 y

18. Net Electrical Energy Generated (MWil) 456,953.0 4,845,979.0 94,406,107.0

19. Unit Service Factor 100.0 92.3 66.6 l 20. Unit Availability Factor 100.0 92.3 66.6 l 21. Unit Capacity Factor (Usiw ius' .4et) 108.7 97.9 61.1

22. Unit Capacity Factor (Usm. % Net) 100.2 90.2 59.4 23; Unit Forced Outage Rate 0.0 7.7 22.2

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

The next refueling outage is currently scheduled to begin 4/12/99; Duration is 43 days.

I 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

. . DATE:1/08/99 PREPARED BY: R. S. Close TELEPilONE: (315) 349-1282-MONTil December 1998 DAY AVERAGE DAILY POWER LEVEL ' DAY AVERAGE DAILY POWER LEVEL (Mwe-Net) (Mwe-Net)

I 1 615 17 614 2 615 18 614 3 614 19 614 4 612 20 615 5 613 21 614 j 6 613 22 615 7 614 23 615 -

8 613 24 615 9 614 25 616 10 615 26 615 11 615 27 615 i: 12 - 614 28 615 i

13 613 29 614 14 614 30 615

15 614 31 615 16 614  ;

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! 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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