ML20237B450

Monthly Operating Rept for July 1998 for Seabrook Station

ML20237B450
Person / Time
Site:	Seabrook
Issue date:	07/31/1998
From:	Diprofio W, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-98099, NUDOCS 9808180280
Download: ML20237B450 (5)

Text

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'\ . North Atlantic Energy Senice Corporation

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• IW II" 3M 8""""' ^" "'4 Ak'idIlkIC (M)3) 474-9321 I The Northeast Utilitien Sptem I l

August 14,1998 l l

Docket No. 50-443 i l

NYN-98099 United States Nuclear Regulatory Commission Attention: Document Control Desk i- Washington, DC 20555-0001 Seabrook Station Monthly Operatine Report Enclosed please find Monthly Operating Report 98-07. This report addresses the operating and shutdown experience relating to Seabrook Station Unit 1 for the month of July,1998 and is submitted in accordance with the requirements of Seabrook Station Technical Specification 6.8.1.5.

Should you require further information regarding this matter, please contact  !

Mr. Terry L. Harpster, Director of Licensing Services, at (603) 773-7765.

Very truly yours, NORTH ATLANTIC ENERGY SERVICE CORP.

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AlaL4 R Dil roffo 5~ '

Station Direct r

11. J. Miller, NRC Region I Administrator J. T. Ilarrison, NRC Project Manager, Project Directorate 1-3 R. K. Lorson, NRC Senior Resident Inspector I

9808190280 980731 PDR ADOCK 05000443 R PDR ;

OPERATING DATA REPORT

• l DOCKET NO. 50-443 -

UNIT Seabrook 1 DATE August 1,1998 s 8 COMPLETED BY P.E. Nardone TELEPIIONE (603) 773 7074 OPERATING STATUS

1. Urut Name: Seabrook Station Unit 1

2. Reporting Period: JULY 1998

3. Licensed Thermal Power (MWt): 3411

4. Nameplate Rating (Gross MWe): 1242

5. Design Electrical Rating (Net MWe): 1148

6. Maximum Dependable Capacity (Gross MWe): 1204

7. Maximum Dependable Capacity (Net MWe): 1158

8. If Changes Occur in Capacity Ratings (items Number 3 through 7) Since Last Updated item 4 per NUREG4X)20 Report, Give Reasons:

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

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

11. Ilours in Reporting Period 744.0 5087.0 103344.0

12. Number of Ilours Reactor Was Crrucal 528.9 4034.1 60697.6

13. Reactor Reserve Shutdown Hours 0.0 0.0 953.3 '

14. Ilours Generator On-Line 498.4 3973.2 58204.6 1 l

15. Unit Reserve Shutdown Ihrurs 0.0 0.0 0.0 j

16. Gross Dermal Energy Generated (MWII) 1658365 13456964 192915(M7

17. Gross Elec. Energy Generated (MWII) 582042 4747431 67388341

18. Net Electrical Energy Generated (MWII) 55 % 75 4568215 64765868

• 19. Unit Service Factor 67.0 78.1 81.6

• 20. Unit Availabdity Factor 67.0 78.1 81.6

• 21. Unit Capacity Factor (Using MDC Net) 65.0 77.5 79.3

• 22. Unit Capacity Factor (Using DER Net) 65.5 78.2 79.7 I

• 23. Unit Forced Outage Rate 33.0 21.9 7.2

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, None Scheduled and Duration of Each):

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

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• 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.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50 443 UNIT Seabrook 1

. a DATE August 1,1998 COMPLETED BY P.E. Nardone TELEPilONE (603) 773-7074 MONTil TULY 1998 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL l (MWe-Net) (MWe-Net) l 1 0 17 1161 l

2 0 18 1163 3 0 19 1163 4 0 20 1162 5 0 21 1162 6 0 22 1162 7 0 23 1162 8 0 24 1162 9 0 25 1162 10 0 26 1162 11 290 27 1152 12 1000 28 1143 13 1143 29 1162 14 1161 30 1162 15 1162 31 1162 16 1162 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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, REFUELING INFORMATION REQUEST

. DOCKET NO. 50-443 UNIT Scabnok 1 DATE August I,1998 COMPLETED BY P.E. Nardone TELEPilONE (603) 773-7074

1. Name of Facility: Seabrook Unit i

2. Scheduled date for next refueling shutdown: Refueling Outage 6, 05/01/99

3. Scheduled date for restart following refueling: Refueling Outage 6, 06/09/99 [ 40 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 licensing action and supporting information:

1 N/A 1 l

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

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

N/A

7. 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) 376 (c) 0

8. The present 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 l 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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