ML031620699

May 2003 Monthly Operating Report for Vermont Yankee Nuclear Power Station

ML031620699
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	06/10/2003
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-03-55
Download: ML031620699 (6)

Text

'Entergy Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee 322 Governor Hunt Rd.

P.O. Box 157 Vernon, VT 05354 Tel 802-257-7711 June 10, 2003 BVY-03-55 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Reference:

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

In accordance with section 6.6.B of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of May, 2003.

Sincerely Kevin H. Bronson General Manager, Plant Operations cc: USNRC Region I Administrator USNRC Resident Inspector USNRC Project Manager

, 1-

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VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 03-05 FOR THE MONTH OF MAY 2003

OPERATING DATA REPORT DOCKETNO.50-271 DATE 030610 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name:

Vermont Yankee

2. Reporting Period:

May

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 Me):

510

8. If changes, occur in capacity ratings(Items Number 3 through 7) last report, give reasons:

9. Power level to which restricted, if any(Net MWe):

10. Reasons for restrictions, if any:

N/A N/A This Month

11. Hours in Reporting Period 744.00

12. Number Of Hours Reactor was Critical 744.00

13. Reactor Reserve Shutdown Hours 0.00

14. Hours Generator On-Line 744.00

15. Unit Reserve Shutdown Hours 0.00

16. Gross Thermal Energy Generated(MWH) 1175578.55

17. Gross Electrical Energy Generated(MWH) 403936.00

18. Net Electrical Energy Generated(MWH) 387278.00

19. Unit Service Factor 100.00

20. Unit Availability Factor 100.00

21. Unit Capacity Factor(Using MDC Net) 102.07

22. Unit Capacity Factor(Using DER Net) 99.72

23. Unit Forced Outage Rate 0.00

24. Shutdowns scheduled over next 6 months(Type, Date, Each:

N/A Yr-to-Date 3623.00 Cumulative 269784.80 3623.00 226771.83 0.00 0.00 3623.00 223136.78 0.00 0.00 5721788.05 338102204.84 1975919.00 113556849.00 1898088.00 108080447.00 100.00 82.71 100.00 82.71 102.73 79.20 100.36 77.60 0.00 3.88 and Duration of

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 COMMERCIAL OPERATION VYDPF 0411.01 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.F01.19F since

AVERAGE DAILY UNIT POWER LEVEL MONTH May DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 527 DOCKET NO. 50-271 UNIT Vermont Yankee DATE 030610 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 17.

527 18.

527 19.

527 529 524 20.

21.

22.

527 23.

527 526 526 526 24.

25.

26.

27.

525 28.

526 29.

526 30.

526 31.

526 526 524 525 524 519 523 522 524 525 520 524 419 508 507 526 INSTRUCTIONS:

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. 8 Page 1 of 1 RT No.

13.FO1.18V 1.

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH MAY DOCKET NO UNIT NAME DATE COMPLETED BY TELEPHONE 50-271 Vermont Yankee 030610 G.A. Wallin (802)258-5414 2 Reason:

3 Met' A-Equipment Failure (Explain) 1 B-Maintenance or Test 2

C-Refueling 3

D-Regulatory Restriction 4

E-Operator Training and License Examination F-Administrative G-Operational Error (Explain)

• H-(Explain) -

Rod pattern exchange hod:

4 Manual Manual Scram Automatic Scram Other (Explain)

Exhibit G-Instructions for Preparation of Data Entry Sheets for License Event Report (LER) File (NUREG 0161) 5 Exhibit I -

Same Source VYDPF 0411.03 DP 0411 Rev. 8 Page 1 of 1 1

2 3

4 5

Cause and Corrective Action to Prevent No.

Date Type Duration Reason Method of License System Component Recurrence.

Shutting Event Code Code (hours)

Down Report #

Reactor 03-04 030529 S

0.00 B,H*

4 N/A RB CONROD Turbine bypass, stop and Power MSIV valve testing, single Reduction rod scram testing, and a rod pattern exchange.

1 F: Forced S: Scheduled

DOCKET NO. 50-271 DATE 030610 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH May

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 99.2% of rated thermal power for the month.

Gross electrical generation was 403,936 MWHe or 99.4% design electrical capacity.

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 99.9%

of rated thermal power.

030529 At 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />, reducing power to 59% to perform turbine bypass and stop valve testing, MSIV full closure testing, single rod scram testing, and a rod pattern exchange.

(See Unit Shutdowns and Power Reductions) 030529 At 0910 hours0.0105 days <br />0.253 hours <br />0.0015 weeks <br />3.46255e-4 months <br />, commenced turbine bypass valve testing.

030529 At 0928 hours0.0107 days <br />0.258 hours <br />0.00153 weeks <br />3.53104e-4 months <br />, completed turbine bypass valve testing.

030529 At 1016 hours0.0118 days <br />0.282 hours <br />0.00168 weeks <br />3.86588e-4 months <br />, commenced MSIV full closure testing.

030529 At 1030 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.91915e-4 months <br />, completed MSIV full closure testing.

030529 At 1045 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.976225e-4 months <br />, commenced turbine stop valve testing.

030529 At 1103 hours0.0128 days <br />0.306 hours <br />0.00182 weeks <br />4.196915e-4 months <br />, completed turbine stop valve testing.

030529 At 1135 hours0.0131 days <br />0.315 hours <br />0.00188 weeks <br />4.318675e-4 months <br />, initiated single rod scram testing.

030529 At 1320 hours0.0153 days <br />0.367 hours <br />0.00218 weeks <br />5.0226e-4 months <br />, commenced a rod pattern exchange.

030529 At 1447 hours0.0167 days <br />0.402 hours <br />0.00239 weeks <br />5.505835e-4 months <br />, completed the rod pattern exchange.

030529 At 1704 hours0.0197 days <br />0.473 hours <br />0.00282 weeks <br />6.48372e-4 months <br />, completed single rod scram testing.

030529 At 1710 hours0.0198 days <br />0.475 hours <br />0.00283 weeks <br />6.50655e-4 months <br />, began a return to full power.

At the end of the reporting period the plant was operating at 96.8% of rated thermal power.

VYDPF 0411.04 (Sample)

DP 0411 Rev. 8 Page 1 of 1 RT No. 13.FO1.18X