ML20205P700

Monthly Operating Repts for Mar 1999 for Byron Station,Units 1 & 2.With

ML20205P700
Person / Time
Site:	Byron
Issue date:	03/31/1999
From:	Colglazier R, Lopriore R COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-99-0051, BYRON-99-51, NUDOCS 9904200299
Download: ML20205P700 (8)

Text

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, 1150 North Grrmatt ( lHirt la Road agon. n. t,ioio i Tel HI5 23 t 5 a 11 April 13,1999 LTR: BYRON 99-0051 FILE: 2.7.200 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Byron Station, Units 1 and 2 l Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN 50-455

Subject:

Monthly Operating Report Enclosed for your information is the Monthly Operating Report covering Byron Station for the period March 1 through March 31,1999.

Respectfully,

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Richard Lopriore f Station Manager Byron Station I/ l RURC/cib

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qi cc: Regional Administrator- NRC Region ill (>

NRC Senior Resident Inspector- Byron Station 9904200299 990331 PDR ADOCK O 4y4 R

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BYRON STATION UNIT 1 AND UNIT 2 MONTHLY PERFORMANCE REPORT COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 a

LICENSE NO. NPF-37 LICENSE NO. NPF-66 l

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i OPERATING DATA REPORT UNIT ONE '

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DOCKET NO. 50-454 UNIT NAME Byron One DATE 04/06/99 COMPLETED BY R. Colalazier  ;

TELEPHONE (815)234-5441 i X2609 REPORTING PERIOD: March.1999 (Month / Year)

MONTH YEAR TO DATE CUMULATIVE

1. Design Electrical Rating (Mwe-Net). 1,120 N/A N/A The nominal net electrical output of the unit specified by the utility and used for the purpose of plant design..

2. Maximum Dependable Capacity (Mwe-Net). 1,105 N/A N/A The gross electrical output as measured at the output terminals of the turbine-generator during the most restrictive seasonal conditions minus the normal station service loads.

3. Number of Hours the Reactor was Critical. 626.45 2,042.45 97,8 %.85 The total number of hours during the gross hours of the reporting period that the reactor was critical.

4. Number of Hours the Generator was On Line. 625.4 2,041.4 97,015.8 (Also called Service Hours). The total number of hours during the gross hours of the reporting period that the unit operated with breakers closed to the station bus. The sum of the hours the generator was on line plus the total outage hours should equal the gross hours in the reporting period.

5. Unit Reserve Shutdown Hours. 0 0 38 The total number of hours during the gross hours of the reporting period that the unit was removed 1 I

from service for economic or similar reasons but was available for operation.

6. Net Electrical Energy (MWH). 706,749 2,317,423 97,165,759 The gross electrical output of the unit measured at the output terminals of the turbine-generator minus

' the normal station service loads during the gross hours of the reporting period, exprec,ad in megawatt hours.' Negative quantities should not be used.

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UNIQUE REPORTING REQUIREMENTS (UNIT 1) l for tha month of March,1999 l

il Safety / Relief valve operations for Unit One. This information is provided pursuant to the reporting requirements contained in Technical Specification 6.9.1.8.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED ACTUATION CONDITION OF EVENT None

! 2. Licensee generated changes to ODCM.

None

3. Indications of failed fuel.

None. Fuel Reliability Indicator: FRI = 1.55 E-6 Ci/cc

4. Licensee Event Reports The following is a tabular summary of a!! Licensee Event Reports for Byron Station, Unit One, occurring during the reporting period, March 1,1999 through March 31,1999. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee Event Report Number Date Title of Occurrence None

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f OPERATING DATA REPORT UNIT TWO t

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DQCKET NO. 50455 UNIT NAME Byron Two DATE 04/06/99 COMPLETED BY R. Colatazier TELEPHONE [815)234-5441 X2609 REPORTING PERIOD: March.1999 (Month / Year)

MONTH YEAR TO DATE CUMULATIVE

1. Design Electrical Rating (Mwe-Net). 1,120 N/A N/A The nominal net electrical output of the unit specified by the utility and used for the purpose of plant design.

l 2. Maximum Dependable Capacity (Mwe-Net). 1,105 N/A N/A The gross electrical output as measured at the

( output terminals of the turbine-generator during 1 the most restictive seasonal conditions minus the normal station service loads.

3. Number of He urs the Reactor was Critical. 744 2,160 89,929.4 The total nuri.ber of hours during the gross hours of the ieporting period that reactor was l

critical.

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4. Number of Hours the Generator was On Line. 744 2,160 89,206.9 l

(Also called Service Hours). The total number of hours during the gross hours of the reporting period that the unit operated with breakers closed to the station bus. The sum of the hours the generator was on line plus the total outage hours should equal the gross hours in the reporting period.

5. Unit Reserve Shutdown Hours. 0 0 0 The total number of hours during the gross hours of the reporting period that the unit was removed from service for economic or similar reasons but was available for operation.

6. Net Electrical Energy (MWH). 849,399 2,471,849 89,459,632 The gross electrical output of the unit measured at the output terminals of the turbine-generator minus the normal station service loads during the gross hours of the reporting period, expressed in megawatt hours. Negative quantities should not be used.

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! UNIQUE REPORTING REQUIREMENTS (UNIT 2)

- for the month of March,1999

1. Safety / Relief valve operations for Unit Two. This information is provided pursuant to the reporting requirements contained in Technical Specification 6.9.1.8.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED. ACTUATION CONDITION OF EVENT None

2. Licensee generated changes to ODCM None

3. Indications of failed fuel.

None. Fuel Reliability Indicator: FRI = 3.00 E-6 pCi/cc

4. Licensee Event Reports The following is a tabular summary of all Licensee Event Reports for Byron Station, Unit Two, occurring during the reporting period, March 1,1999 through March 31,1999. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

- Occurrence Lig_nssp n Event Report Number . Date Title of Occurrence None i

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