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)

Text

L i

s,

.N apra $ Mohawk' i

January 15, 1999 NMP91481 l

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

RE:

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

Subject:

Operating Statistics and Shutdowns - December 1998 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.

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

l

NIAGARA MOHAWK POWER CORPORATION i

NINE MILE POINT NUCLEAR STATION UNIT #1 I

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.

i i

+

j i

l i

l

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 Date Type' (H a rs)

Reas d h

RW#

W W

hm Rum No-s Reactor 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)

l l

i l

'I OPERATING DATA REPORT DOCKET NO.: 50-220 DATE: 1/08/99 PREPARED BY: R.S. Close TELEPlIONE: (315) 349-1282 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

S. 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:

l

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:

l l

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 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.'

i I

l Y

.