BVY-98-149, Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With

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Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With
ML20154H638
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 09/30/1998
From: Balduzzi M, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-98-149, NUDOCS 9810140277
Download: ML20154H638 (6)
v • d • e


Text

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l VERMONT YANKEE l-NUCLEAR POWER CORPORATION P.O. Box 157, Govemor Hunt Road l

Vemon, Vermont 05354-0157

-(802) 257-7711

@) .

October 10,1998 BVY-98-149 United States Nuclear Regulatory Commission I ATTN: Document Control Desk

. Washington, D.C. 20555

Reference:

(a) License No. DPR-28 (Docket No. 50-271)

In accordance with section 6.7.A.3 of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear

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Power Station for the month of Scotember.1998.

Sincerely, J i

VERMONT YANKEE NUCLEAR POWER CORPORATION drYW '

Michael A. Balduzzi )

Plant Manager i

cci USNRC Region I Administrator !y USNRC Resident Inspector - VYNPS-USNRC Project Manager - VYNPS

. Vermont Department of Public Service l 9810140277 900930 PDR ADOCK 05000271

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l VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 98-09 l FOR THE MONTH OF SEPTEMBER 1998 ,

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, OPERATING DATA REPORT DOCKET NO.50-271 DATE 981010 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee
2. Reporting Period: September
3. Licensed Thermal Power (MWt) :1593
4. Nameplate Rating (Gross MWe) : 540
5. Design Electrical Rating (Net MWe): 522
6. Maximum Dependable Capacity (Gross MWe): 535 7.' Maximum Dependable Capacity (Net MWe): 510
8. If changes, occur in capacity ratings (Items Number 3 through 7) since last report, give reasons:
9. Power level to which restricted, if any(Net MWe): N/A i
10. Reasons for. restrictions, if any: N/A i This Month Yr-to-Date Cumulative 13 Hours in Reporting Period 720.00 6551.00 225695.00
12. Number Of Hours Reactor was Critical 720.00 4714.00 188093.98
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00 i
14. Hours Generator On-Line 720.00 4621.00 184654.00 j
15. Unit Xeserve Shutdown Hours 0.00 0.00 0.00 <
16. Gross Thermal Energy Generated (MWH) 1142879.25 7058819.10 277832723.00 l
17. Gross Electrical Energy Generated (MWH) 387992.00 _2402229.00 92926013.00
18. Net Electrical Energy Generated (MWH) 366359.00 2287997.00 88370752.00
19. Unit Service Factor 100.00 70.50 80.70 ,
20. Unit Availability Factor 100.00 70.50 80.70  !
21. Unit Capacity Factor (Using MDC Net) 99.80 68.50 76.50
22. Unit Capacity Factor (Using DER Net) 97.50 66.90 75.00
23. Unit Forced Outage Rate 0.00 2,60 4.51
24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each:
25. If shut down at end of report period, estimated date of.startup: N/A
26. Units In Test Status (prior to commercial operation): N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY _

L COMMERCIAL OPERATION

, VYDPF 0411.01 (Sample)

DP 0411 Rev. 7 Page 1 of 1 RT No. 13.F01.19F

_,_.J4d ' ' ' ' . - . -

,. AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 ,

UNIT Vermont Yankee  !

DATE 981010 '

l COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH September DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 508 17, 515
2. 510 18. 514 l
3. 510 19. 513
4. 508 20. 508
5. 508- 21. 505
6. 503 22. 507
7. 504 23. 514
8. 509 24. 514
9. 513 25. 509 1
10. 513 26. 511 l
11. 512 27. 508
12. 513 28. 512 __

13, 512 29. 503

14. ___

508 30. 489

15. 502 31. ---
16. 510 XNSTRUCTIONS:

( 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.

VYDPF 0411.02 (Sample)

DP 0411 Rev. 7 Page 1 of 1 l RT No. 13.F01.18V l J

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH SEPTEMBER DOCKET NG 30-271 UNIT NAME Vermont Yankee DATE 981010 COMPLETED BY G.A. Wallin '

TELEPHONE (802)258-5414 1 2 3 4 5 No. Date Type Duration Reason Method of License System Component Cause and Corrective (hours) Shutting Event Code Code Action to Prevent Down Report # Recurrence Reactor (None) 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions S: Scheduled A-Equipment Failure (Explain) 1 - Manual for Preparation of Data B-Maintenance or Test 2 - Manual Scram Entry Sheets for License C-Refueling 3 - Automatic Scram Event Report (LER) File D-Regulatory Restriction 4 - Other (Explain) (NUREG 0161)

E-Operator Training and License Examination 5 Exhibit I - Same Source VYDPF 0411.03 F-Administrative DP 0411 Rev. 7 G-Operational Error (Explain)

Page 1 of 1 H-(Explain) -

l DOCKET NO. 50-271 DATE 981010 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 i

l REPORT MONTH September i i

SUMMARY

OF OPERATING EXPERIENCES l

Highlights Vermont Yankee operated at 99.6% of rated thermal power for the month. I Gross electrical generation was 387,992 MWHe or 98.7% design electrical capacity.

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Operating Summary

{

The following is a chronological description of plant operations including other pertinent items of interest for the month:

At the beginning of the reporting period the plant was operating at 99.8%

of rated thermal power.

There were no items of interest to report for this month.

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At the end of the reporting period the plant was operating at 95.31 of rated thermal power.

VYDPF 0411.04 (Sample)

DP 0411 Rev. 7 Page 1 of 1 RT No. 13.F01.18X

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