ML20247G264

Monthly Operating Rept for Apr 1998 for Seabrook Station

ML20247G264
Person / Time
Site:	Seabrook
Issue date:	04/30/1998
From:	Diprofio W, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-98067, NUDOCS 9805200183
Download: ML20247G264 (5)

Text

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C NM Ag % i North Nonh Atlantic Energy Service Corporation P.O. Box 300

. Atlantic seehroet. sii O3874 d

(603) 474-9521 The Northeast Utilities System May 12,1998 Docket No. 50-443 NYN-98067 l

United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Seabrook Station Monthlv Operating Reoort Enclosed please find Monthly Operating Report 98-04. This report addresses the operating and shutdown experience relating to Seabrook Station Unit I for the month of April,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.

W A. DiProfio "[

Station Director cc:

H. J. Miller, NRC Region I Administrator C. W. Smith, NRC Project Manager, Project Directorate 1-3 I

R. K. Lorson, NRC Senior Resident inspector

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980520o183 990430 PDR ADOCK O 4j3 R

OPERATING DATA REPORT s

1 DOCKET NO.

50 443 J

UNIT SeabrookI DATE May 1,1998 COMPLETED BY P.E. Nardone TELEPHONE (603) 773-7074 OPERATING STATUS 1.

Unit Name:

Seabrook Station Unit i 2.

Reporting Period:

APRIL 1998 3.

Licensed Thermal 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):

1158 8.

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

i 9.

Power Level To Wluch Restricted, if Any (Net MWe):

None 10.

Reasons For Restrictions, If Any:

Not Applicable This Month Yr-to-Date Cumulative I

11.

Ilours in Reporting Period 719.0 2879.0 101136.0 12.

Number of Hours Reactor Was Critical 719.0 2515.2 59178.7 13.

Reactor Reserve Shutdown Hours 0.0 0.0 953.3 14.

Hours Generator On-Line 719.0 2485.5 56716.9 15.

Unit Reserve Shutdown llours 0.0 0.0 0.0 16.

Gross Thermal Energy Generated (MWH) 2452197 8438042 1878 % I25 17.

Gross Elec. Energy Generated (MWH) 866548 2977654 65618564 18.

Net Electrical Energy Generated (MWH) 834108 28M996 63062649

• 19.

Unit Service Factor 100.0 86.3 82.0

• 20.

Unit Availabihty Factor 100.0 86.3 82.0

• 21.

Unit Capacity Factor (Using MDC Net) 100.2 85.9 79.8

• 22.

Unit Capacity Factor (Using DER Net) 101.1 86.7 80.1

• 23.

Unit Forced Outage Rate 0.0 13.7 6.2 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:

• NOTE: " Cumulative" values based on total hours starting 8/19/90, date Regular Full Power Operanon i<gan.

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

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1 AVERAGE DAILY UNIT POWER LEVEL e

o DOCKET NO.

50-443 UNIT Seabrook i DATE May 1,1998 COMPLETED BY P.E. Nardone TELEPilONE (603) 773-7074 MONTil APRIL 1998 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 1160 17 1160 2

1160 18 1161 3

!!60 19 1161 4

1160 20 1160 5

1160 21 Ilu) 6 1160 22 1161 7

1160 23 1160 8

1160 24 1160 9

1160 25 1160 I

i 10 1160 26 1160 l

11 llN) 27 1160 l

12 1160 28 11(o 13 11(o 29 11(o j

14 1160 30 1160 l

1 15 1160 16

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

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REFUELING INFORMATION REQUEST I

DOCKET NO.

50443 UNIT Seabrook 1 DATE May 1,1998 COMPLETED BY P.E. Nardone TELEPIIONE (603) 773-7074 I

1.

Name of Facility:

Seabrook Unit 1 2.

Scheduled date for next refueling shutdown:

Refueling Outage 6, 04/03/99 I

3.

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

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4.

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

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N/A 5.

Schedule date(s) for submitting licensing 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 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 (c) 4 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.

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

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