ML040150637

December 2003 Monthly Operating Report for Vermont Yankee

ML040150637
Person / Time
Site:	Vermont Yankee
Issue date:	01/08/2004
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-04-001
Download: ML040150637 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee A- Entergy 322 Governor Hunt Rd.

PO. Box 157 Vernon, VT 05354 Tel 802-257-7711 January 08, 2004 BVY-04-001 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 December, 2003.

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

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 03-12 FOR THE MONTH OF DECEMBER 2003

OPERATING DATA REPORT DOCKETNO.50-271 DATE 040108 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Peric Dd: December

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

10. Reasons for restrictions, if any: N/A This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 744.00 8760.00 274921.80

12. Number Of Hours Reactor was Critical 744.00 8652.39 3 231801.22

13. Reactor Reserve Shutdown Hours 0.00 0.00 ) ~~0.00

14. Hours Generator On-Line 744.00 8612.91 L 228126.69

15. Unit Reserve Shutdown Hours 0.00 0.00 ) ~~0.00

16. Gross Thermal Energy Generated(MWH) 1174474.75 13592572.90 345972989.69

17. Gross Electrical Energy Generated(MWH) 404909.00 4651322.00 )116232252.00

18. Net Electrical Energy Generated(MWH) 389151.00 4444152.00 )110626511.00

19. Unit Service Factor 100.00 98.30 ) ~83.00

20. Unit Availability Factor 100.00 98.30 ) ~83.00

21. Unit Capacity Factor(Using MDC Net) .102.60 99.50 ) ~79.60

22. Unit Capacity Factor(Using DER Net) 100.20 97.20 ) ~77.90

23. Unit Forced Outage Rate 0.00 1.42 7 ~~3.85

24. Shutdowns scheduled over next 6 months(Type, Date, and Duratio:an of Each: 04/03/2004 to 05/03/2004 for scheduled refueling outage.

25. If shut down at end of report period, estimated date of startu lp: 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. FO1.19F

- AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 040108 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH December DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 528 17. 528

2. 528 18. 528

3. 528 19. 528

4. 528 20. 528

5. 528 21. 528

6. 528 22. 528

7. 528 23. 528

8. 528 24. 528

9. 414 25. 528

10. 517 26. 527

11. 505 27. 527

12. 528 28. 527

13. 528 29. 522

14. 528 30. 529

15. 528 31. 529

16. 528 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

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH DECEMBER DOCKET NO 50-271 UNIT NAME Vermont Yankee' DATE 040108 COMPLETED BY G.A. Wallin TELEPHONE (802)258-5414 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 03-12 031209 S 0.00 B,H* 4 N/A RB CONROD Turbine and MSIV valve Power testing, single rod scram Reduction testing, and a rod pattern exchange.

1 F: Forced 2 Reason: 3 Met] hod: 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 F-Administrative G-Operational Error (Explain)

• H-(Explain) - rod pattern exchange VYDPF 0411.03 DP 0411 Rev. 8 Page 1 of 1

DOCKET NO. 50-271 DATE 040108 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH December

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 99.0% of rated thermal power for the month.

Gross electrical generation was 404,909 MWHe or 99.6% 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.

031209 At 0802 hours0.00928 days <br />0.223 hours <br />0.00133 weeks <br />3.05161e-4 months <br />, commenced a power reduction to 70% to perform turbine valve and MSIV full closure testing, single rod scram testing, and a rod pattern exchange. (See Unit Shutdowns and Power Reductions) 031209 At 0815 hours0.00943 days <br />0.226 hours <br />0.00135 weeks <br />3.101075e-4 months <br />, commenced turbine valve testing.

031209 At 0940 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.5767e-4 months <br />, completed turbine valve testing.

031209 At 0940 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.5767e-4 months <br />, commenced MSIV full closure testing.

031209 At 0945 hours0.0109 days <br />0.263 hours <br />0.00156 weeks <br />3.595725e-4 months <br />, completed MSIV full closure testing.

031209 At 1045 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.976225e-4 months <br />, commenced single rod scram testing and a rod pattern exchange.

031209 At 1615 hours0.0187 days <br />0.449 hours <br />0.00267 weeks <br />6.145075e-4 months <br />, completed single rod scram testing and the rod pattern exchange.

031209 At 1838 hours0.0213 days <br />0.511 hours <br />0.00304 weeks <br />6.99359e-4 months <br />, began a return to full power.

At the end of the reporting period the plant was operating at 99.9% of rated thermal power.

VYDPF 0411.04 (Sample)

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