ML20248M295

Monthly Operating Rept for May 1998 for Seabrook Station, Unit 1

ML20248M295
Person / Time
Site:	Seabrook
Issue date:	05/31/1998
From:	Diprofio W, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-98082, NUDOCS 9806150261
Download: ML20248M295 (5)

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i North North Atlantic Energy Service Corporation P.O. Box 300 Atlantic Seahreot, Ni103874 (603) 474-9521 The Northeast Utilities System June 11,1998 Docket No. 50-443 NYN-98082 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Seabrook Station Monthly Onerating Renort Enclosed please find Monthly Operating Report 98-05. This report addresses the operating and shutdown experience relating to Seabrook Station Unit I for the month of May,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.

hr$Yd W. A. DiProfio /

Station Director I

cc:

H. J. Miller, NRC Region I Administrator J. T. Harrison, NRC Project Manager, Project Directorate 1-3 h

l R. K. Lorson, NRC Senior Resident Inspector g

.6 YY N

9906150261 990531 i

PDR ADOCK 05000443 i

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i OPERATING DATA REPORT f

DOCKET NO.

50-443 l

UNIT Seabrook 1 DATE June 1,1998 COMPLETED BY P.E. Nardone TELEPHONE (603) 773-7074 l

l OPERATING STA'IUS

)

1.

Unit Name:

Seabrook Station Unit 1 2.

Reporting Period:

MAY 1998 3.

Licensed 'Ihermal Power (MWt):

3411 4.

Nameplate Rating (Gross MWe):

1197 5.

Design Electrical Rating (Net MWe):

1148 6.

Maximum Dependable Capacity (Gross MWe):

1204 7.

Maximum Dependable Capacity (Net MWe):

!!58 1

8.

If Changes Occur in Capacity Ratings (Irems Number 3 through 7) Since Last Not Applicabit j

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 l

11.

Hours in Reporting Period 744.0 3623.0 101880.0 12.

Number cf Hours Reactor Was Critical 744.0 3259.2 59922.7 13.

Reactor Reserve Shutdown Hours 0.0 0.0 953.3 14.

Hours Generator On-Line 744.0 3229.5 57460.9 15.

Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.

Gross Thermal Energy Generated (MWH) 2537489 10975531 190433614 17.

Gross Elec. Energy Generated (MWH) 897211 3874866 66515775 18.

Net Electrical Energy Generated (MWH) 863987 3728983 63926636

• 19.

Unit Service Factt 100.0 89.1 82.2

• 20.

Unit Availability Factor 100.0 89.1 82.2

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• 21.

Umt Capacity Factor (Using MDC Net) 100.3 88.9 80.0

• 22.

Unit Capacity Factor (Using DER Net) 101.2 89.7 80.3 q

• 23, Unit Forced Outage Rate 0.0 10.9 6.2 l

I 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:

cNOTE: "Cumularive' 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 LETTL DOCKET NO.

50443 UNIT Seabrook i DATE June 1,1998 COMPLETED BY P.E. Nardorm TELEPflONE (603) 773-7074 MONT11 MAY 1998 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 1161 17 1161 2

1161 18 1161 3

1161 19 1161 4

1161 20 1161 5

1161 21 1162 6

1161 22 1161 7

1161 23 1162 8

1161 24 1162 9

1161 25 1162 10 1161 26 1162 11 1161 27 1161 12 1161 28 1162 13 1161 29 1164 14 1161 30 1162 15 1161 31 1162 16 1161 INSTRUCTION 3 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.

50443 i

l UNIT Seabrooki DATE June 1.1998 COMPLETED BY P.E. Nardone TELEPHONE (603) 773-7074

-1.

Name of Facility:

Seabrook Unit 1 2.

Scheduled date for next refueling shutdown:

Refueling Outage 6, 04/03/99 3.

Scheduled date for restart following refueling: Refueling Outage 6, 05/12/99 [ 40 days ]

i 4.

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

N/A t

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

\\-

N/A 6.

Important licensing considerations asux:iated with refueting, 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 i-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 (c) 4

. 8.

The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been i

requested or is planned, in number of fuel assemblies:

Present licensed capacity:

1236 No increase in storage capacity requested or planned.

l 9.

The projected date of the last refueling that can be discharged to the spent fuel pool assuming the p.: sent 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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