ML20199E637

Monthly Operating Repts for Dec 1998 for Byron Station,Units 1 & 2.With

ML20199E637
Person / Time
Site:	Byron
Issue date:	12/31/1998
From:	Colglazier R, Levis W COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-99-0006, BYRON-99-6, NUDOCS 9901210039
Download: ML20199E637 (9)

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Ormmonwealth rdwin G>mpany

• -  !!yron Generating Station 4450 North German Church Road flynan, IL 61U109794 Tel H15-2M5141 January 15,1999 LTR: BYRON 99-0006 FILE: 2.7.200 1

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Byron Station, Units 1 and 2 Facility Operating Licenses NPF-37 and NPF-66 NRC Docket Nos: STN 50-454 and STN 50-455 )

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SUBJECT:

Monthly Operating Report Enclosed for your information is the Monthly Operating Report covering Byron Station for the period Deceniber 1 through December 31,199S.

1 Sincerely, l

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^J i William Levis  !

Station Manager Byron Station .

i WIJRC/cib cc: NRC Region Administrator- Region III f NRC Senior Resident Inspector- Byron Station [ ( l r!

9901210039 981231 _

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bcci - Byron Pr: ject Manager-NRR Office ofNuclear Safety-IDNS ,

INPO Record Center -  !

' B. Lewis, McGraw - Hill Nuclear Publications Dept. [

N. Reynolds, Winston & Strawn  !

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BYRON STATION i UNIT I AND UNIT 2 i I

MONTHLY PERFORMANCE REPORT 1

i COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. NPF-37  !

LICENSE NO. NPF-66  !

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OPERATING DATA REPORT UNIT ONE DOCKET NO. 50454 UNIT NAME Dvron One DATE 01/10/99 COMPLETED BY R. Colclazier TELEPHONE (815)234-5441 X2609 REPORTING PERIOD: December,1998 (Month / Year)

MONTH YEAR TO DATE CUMULATIVE

1. Design Electrical Ratirng (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 nonnal station senice loads.

3. Number of Hours the Reactor Was Critical. 744 7,174.1 95,854.4

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The total number of hours during the gross hours of the reporting period that the reactor was critical. l l

4. Number of Hours the Generator Was On Line. 744 7,145.9 94,974.4 (Also called Senice Hours). The total number nf hours during the gross hours of the reporting y eriod 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. ,

S. 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 from senice for economic or similar reasons but was available for operation. l

6. Net Electrical Energy (MWH). 815,730 7,790,828 94,848,336 The gross electrical output of the unit measured at I the output terminals of the turbine-generator minus the normal station senice loads dunng the gross hours of the reporting period, expressed in megawatt hours.

Negative quantities should not be used.

ptegassur\ reports', Monthly Operaung Report. doc-4

4 UNIT SilUTDOWNS DOCKET NO. 50-454 UNIT NAME BsTon One DATE 01/11/99 -

COMPLETED BY R. Colalazier -

TELEPHONE (8151234-5441 X2609 REPORTING PERIOD: December.1999 NO. DATE TYPE DURATION REASON (1) METilOD OF CAUSE/ CORRECTIVE ACTIONS F: FORCED (llOURS) SIIUTTING S: SCIIEDULED DOWN (2) COMMENTS None

SUMMARY

Unit One On Line During the Month of December.

t (1) Reason (2) Method A - Equipment Failure (Explain) 1 - Manual B - Maintenance Test 2 - Manual Trip / Scram C - Refueling 3 - Automatic Trip / Scram D - Regulatory Restriction 4 -Continuation E - Operator Training / License Examination 5 -Other (Explain) ,

F- Administrative  :

G - Operational Error (Explain) 11 - Other (Explain) pfeegawurVerortsatonthly Operating Report doc-5

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l UNIQUE REPORTING REQUIREMENTS (UNIT 1) for the month of December,1998 i

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

VALVES NO & TYPE PLANT DESCRIPTION l DATE ACTUATED ACTUATION CONDITION OF EVENT l

None l 2. Licensee generated changes to ODCM.

None  ;

3.- Indications of failed fuel.

No. Fuel Reliability Indicator: FRI = 2.63 E-5 pCi/cc

4. Licensee Event Repons l The following is a tabular summary of all Licensee Event Repons for Byron Station, Unit ,

One, occurring during the reporting period, December 1,1998 through December 31,1998. l l

This information is provided pursuant to the reportable occurrence reporting requirements as set fonh in 10CFR 50.73.

L Occurrence Licensee Event Report Number Date Title of Occurrence None l

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, OPERATING DATA REPORT UNIT TWO j DOCKET NO. 50-455 i UNIT NAME Bvron Two DATE 01/10/99  ;

COMPLETED BY R Colalazier j TELEPHONE (815)234-5441  ;

X2609 l f

REPORTING PERIOD: December.1998 l (Month / Year) {

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MONTH YEAR TO DATE CUMULATIVE i

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 i of plant design.

2. Maximum Dependable Capacity (Mwe-Net). 1,105 N/A N/A l

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The gross electrical output as measured at the output terminals of the turbine-generator during l the most restictive seasonal conditions minus the normal station senice loads.

3. Number of Hours the Reactor Was Critical. 744 7,871.7 87,769.4  :

The total number of hours during the gross hours of the reporting period that reactor was  ;

critical.

4. Number of Hours the Generator Was On Line. 744 7,855.6 87,046.9  :

(Also called Senice Hours). *lhe total number  ;

of hours during the gross hours of the reporting period that the unit operated with breakers closed  :

i 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 i The total number of hours during the gross hours i of the reporting period that the unit was removed i from senice for economic or similar reasons but was available for operation.

6. Net Electrical Ener;;y (MWH). 853,480 8,592.921 86,987,783

' The gross elect ; cal output of the unit measured at the output ter'.tinals of the turbine-generator minus the normal station senice loads during the gross hours of the reporting period, expressed in megawatt hours.

I Negath e quantitics should not be used.

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h UNIT SHUTDOWNS DOCKET NO. 50-455 UNIT NAME; . Byron Two  ;

DATE 01/11/99 COMPLETED BY R. Colalaner i TELEPHONE (8151234-544i X2609 REPORTING PERIOD: December.1999 i

NO. DATE TYPE DURATION REASON (1) METHOD OF CAUSE/ CORRECTIVE ACTIONS l F: FORCED (HOURS) SHUTTING ,

S: SCHEDULED DOWN(2) COMMENTS  !

I Nonc l

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SUMMARY

Unit Two On Line During the Month of December.

(2) Reason (2) Method t A -Equipment Failure (Explain) 1 - Manual 1 B -Maintenance Test 2 - Manual Trip / Scram i C - Refueling 3 - Automatic Trip / Scram

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D - Regulatory Restriction 4 -Continuation E - Operator Training / License Examination 5 -Other (Explain) 7 F- Administratiw  !

G - Operational Error (Explain) l H - Other (Explain)  !

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UNIQUE REPORTING REQUIREMENTS (UNIT 2) for the month of December,1998

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

VALVES _ NO & TYPE PLANT DESCRIPTION )

DATE ACTUATED ACTUATION CONDITION OF EVENT

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None I

- 2. Licensee generated changes to ODCM.

None

3. Indications of failed fuel.

No. Fuel Reliability Indicator: FRI = 5.16 E-5 pCi/cc

4. Licensee Event Reports The following is a tabular summary of all Licensee Event Repons for Byron Station, Unit Two, occurring during the reponing period, December 1,1998 through December 31, 1998. This inforrnation is provided pursuant to the reportable occurrence reporting requirements as set fonh in 10CFR 50.73.

Occurrence Licensee Event Recon Number D_alg

. Title ofOccurrence None I

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