ML20195G539

Monthly Operating Rept for May 1999 for Seabrook Station, Unit 1.With

ML20195G539
Person / Time
Site:	Seabrook
Issue date:	05/31/1999
From:	Diprofio W, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-99057, NUDOCS 9906160098
Download: ML20195G539 (5)

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North Aksne Energy Service Corporation I'* 8- 3a North. Seabrook, Nil 03874 Atlantic 3o334749321 The Northeast Utilities System June 10,1999

' Docket No. 50-443 NYN-99057 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Seabrook Station May 1999 Monthly Operating Report  ;

l Enclosed please find Monthly Operating Report 99-05. This report addresses the operating and shutdown experience relating to Seabrook Station Unit I for the month of May,1999 and is 1 submitted in accordance 'with the requirements of Seabrook Station Technical Specification 6.8.1.5..

I Sh'ould1 you require further information regarding this. matter, please . contact Mr. James M. Peschel, Regulatory Compliance Manager, at (603) 773-7194.

Very truly yours, NORTH ATLANTIC ENERGY SERVICE CORP.

/lEAA2 i T .D'ilrofio[

Station Director l- {

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H. J. Miller, NRC Region I Administrator I, i J. T. Harrison, NRC Project Manager, Project Directorate 1-2

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R. K. Iiorson, NRC Senior Resident Inspector )

N 1 N 990531 gDR- ADOCM 05000443 '.

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L OPERATING DATA REPORT

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, DOCKET NO. 50443 l UNIT Seabrook i

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DATE June 1,1999 COMPLETED BY P.E. Nardone TELEPilONE (603) 773-7074 OPERATING STATUS

1. Unit Name: Seabrook Station Umt I i

2. Reporting Period: MAY 1999 )

3. Licensed Thermal Power (MWt): 3411.0

4. Nameplate Rating (Gross MWe): 1242.0

5. Design Electrical Rating (Net MWe): 1148.0

6. Maximum Dependable Capacity (Gross MWe): 1204.0 i

7. Maximum Dependable Capacity (Net MWe): 1155.3 i

8. If Changes Occur in Capacity Ratings (Items Number 3 through 7) Since Last Item 7 changed to reflect revised Report, Give Reasons: metering requirements. Decrease due {

to additional transformer, breaker and bus losses that were not previously accounted for.

9. Power Level To Which Restricted, if Any (Net MWe): None

10. Reasons For Restrictions, If Any: Not Applicable his Month Yr-to-Date Cumulative

11. Ilours in Reporting Period 744.0 3623.0  !!0640.0

12. Number of flours Reactor Was Critical 484.2 2528.9 66591.8

13. Reactor Reserve Shutdown flours 0.0 0.0 953.3

14. Ilours Generator On-Line 388.2 2428.6 63955.8

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWil) I136402 8044717 212205091

17. Gross Elec. Energy Generated (MWII) 392902 2837786 74195732

. 18. Net Electrical Energy Generated (MWil) 374720 2727484 71313570

• 19. Unit Service Factor 52.2 67.0 81.3

• 20. Unit Availability Factor 52.2 67.0 81.3

• 21. Unit Capacity Factor (Using MDC Net) 43.6 65.0 79.2

• 22. Unit Capacity Factor (Using DER Net) 43.9 65.6 79.5

• 23. Unit Forced Outage Rate 10.8 1.9 7.1

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

25. If Shut Down At End Of Report Period. Estimated Date of Not ApplicaNe Startup:

• NOTE: ' Cumulative

• values based on total hours starting 8/19/90, date Regular Full Power Operation began.

Increased MDC values (Items 6 & 7) starting 12/01/95.

Updated item 4 per NUREG-0020 in July 1998.

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.,. ,, AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50443 UNIT Seabrook I i DATE June 1,1999 COMPLETED BY P.E. Nardone TELEPilONE (603) 773 7074 1 MONTil MAY, 1999 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 17 1047 2 0 18 1021 3 0 19 503 4 0 20 0 5 0 21 88 6 0 22 921 7 0 23 1161 8 0 24 1162 9 0 25 1162 10 0 26 1147 11 0 27 1162 12 0 28 1162 13 20 29 1162 14 293 30 1162 15 518 31 1162 16 761 -

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

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,4" . REFUELING INFORMATION REQUEST DOCKET NO. 50-443

,  ;. UNIT Seabrooki DATE June 1.1999 f

COMPLETED BY . P.E. Nardone TELEPliONE (603) 773 7074

1. L Name of Facility: Seabrook Unit 1 2 7 cheduled S date for next refueling shutdown: Refueling Outage 7, 10/21/00

3. ' Scheduled date for restart following refueling: Refueling Outage 7, i1/24/00 [ 35 days ]

4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendment?

N/A

5. Schedule date(s) for submitting hcensing action and supporting information:

N/A

6. . Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed

. design or performance analysis methods, significant changes in fuel desigr., new operating procedures:

= N/A 7b The number of fuel assemblies (a) in the core (b) in the spent fuel storage pool and (c) in the new fuel storage vault -

(a): 193_ (b) 456 (c) 0

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8. The p' resent licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies:

- Present licensed capacity: 1236 No increase in storage capacity requested or planned.

- 9. The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:

Licensed capacity of 1236 fuel assemblies based on two annual and twelve eighteen-month refuelings with full core offload capability.

The current licensed capacity.is adequate until at least the year 2010.

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