ML20216F889

Monthly Operating Rept for Mar 1998 for Seabrook Station

ML20216F889
Person / Time
Site:	Seabrook
Issue date:	03/31/1998
From:	Difrofio W, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-98056, NUDOCS 9804170271
Download: ML20216F889 (5)

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.i North Nonh Atlantic Energ Senico Coq > oration P.O. Ilox 300 I

Atlaritic seahreet, nii O3874 (603) 474-9521 The Northeast Utilities System April 10,1998 Docket No. 50-443 I

NYN-98056 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Seabrook Station i Monthlv Onerating Reoort Enclosed please find Monthly Operating Report 98-03. This report addresses the operating and shutdown experience relating to Seabrook Station Unit I for the month of March,1998 an'd is submitted in accordance with the requirements of Seabrook Station Technical Specification J 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.

W. 5. DiProfio /

Station Director cc:

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11. J. Miller, NRC Region 1 Administrator C. W. Smith, NRC Project Manager, Project Directorate 1-3 R. K. Lorson, NRC Senior Resident inspector I

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, OPERATING DATA REPORT DOCKET NO. 50 443 i

UNIT Seabrook1 DATE April 1.1998 {

COMPLETED BY P.E. Nardone i TELEPilONE (603) 773-7074 l

OPERATING STATUS i

1. Unit Nanie: Seabrook Station Umt 1

2. Reporting Perbl: MARCil 1998  !

3. Licensed Therma! Power (MWt): 3411 f 4 Nameplate Rating (Gross MWe): 1197 l 5. Design Elec:rical Rating (Net MWe): 1148 I

6. Maximum Dependable Capacity (Gross MWe): O 1204 j

7. Maximum Dependable Capacity (Net MWe). I158

8. If Cnanges Occur in Capacity Ratings (Items Number 3 through 7) Since Last Not Applicable j Report, Give Reasons:

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9. Powet 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 Reporung Period 744.0 2160.0 100417.0 l

12. l Number of flours Reactor Was Critical 744.0 17 % .2 58459.7 j

13. Reactor Reserve Shutdown llours 0.0 0.0 953.3 l 14. Ilours Generator On Line 744.0 1766.5 55997.9 1

15. Unit Reserve Shutdown llours 0.0 0.0 0.0 I

16. Gross Thermal Energy Generated (MWil) 2536574 5985845 185443928 l

17. Gross Elec. Energy Generated (MWil) 8 % 505 21111 % 64752016 1 1

18. Net Electrical Energy Generated (MWII) 862771 2030888 62228541

• 19. Unit Service Factor 100.0 81.8 81.8

• 20. Umt Availabihty Factor 1000 el.8 81.8

• 21. Unit Capacity Factor (Using MDC Net) 100.1 81.2 79.5

• 22. Unit Capacity Factor (Using DER Net) 101.0 81.9 79.9

• 23. Umt Forced Outage Rate 0.0 18.2 6.4

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

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

• NOTE: " Cumulative" values based en *otal hours starting 8/19/90. date Regular Full Power Operation began, increased MDC values (Iten.s 6 & 7) starting 12/01/95.

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AVERAGE DAILY UNIT POWER LEVEL n .

DOCKET NO 50443 UNIT Seabrook 1 DATE April 1,1998 COMPLETED BY P.E. Nardone TELEPiiONG (603) 773-7074 MON'lli MARCII 1998 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

I 1160 17 1159 2 life 18 1159 3 1160 19 1159 4 1160 20 1159 5 1160 21 1159 6 1160 22 1159 7 1160 23 1159 8 1159 24 1160 9 life 25 1159 10 life 26 life 11 1159 27 11(o 12 1159 28 1161 13 l*58 29 1161 14 1159 30 1161 15 1159 31 1161 16 1159 INSTRUCTIONS On this format, list the average daily urd power level in MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.

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s REFUELING INFORMATION REQUEST DOCKET NO. 50-443 (JNIT Seabrook 1 DATE April 1.1998 CONtPLETED BY P.E. Nardone TELEPilONE (603) 773 7074

1. Name of Facility: Seabrook Unit 1

2. Scheduled date for next refueling shutdown: Refueling Outage 6, (M/03/99

3. Scheduled date for restart following refueling: Refueling Outage 6, 05/12/99 [ 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:

N/A

6. Important licensing considerations associated with refu.'ing, e.g., new or different fuel design or supplier, unreviewed 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) 372 4 (c)

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 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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