ML032600872

August 2003 Monthly Operating Report for Vermont Yankee

ML032600872
Person / Time
Site:	Vermont Yankee
Issue date:	09/10/2003
From:	Bronson K Entergy Nuclear Northeast, Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-03-78
Download: ML032600872 (6)

Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

Vermont Yankee

-- En tergy, 322 Governor Hunt Rd.

RO. Box 157 Vernon, VT 05354 Tel 802-257-7711 September 10, 2003 BVY-03-78 United States Nuclear Regulatory Commnission Af:N: 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 August, 2003.

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-Kevin H. Bronson General Manager, Plant Operations cc: USNRC Region I Administrator USNRC Resident Inspector USNRC Project Manager I , 4,

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 03-08 FOR THE MONTH OF AUGUST 2003

OPERATING DATA REPORT DOCKETNO.50-271 DATE 030910 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee

2. Reporting Period: August

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 5831.00 271992.80

12. Number Of Hours Reactor was Critical 744.00 5831.00 228979.83

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 5831.00 225344.78

15. Unit Reserve Shutdown Hours - 0.00 0.00 0.00

16. Gross Thermal Energy Generated(MWH) 1183063.60 9229465.63 341609882.44

17. Gross Electrical Energy Generated(MWH) 399275.00 3156485.00 114737415.00

18. Net Electrical Energy Generated(MWH) -377983.00 3014867.00 109197226.00

19. Unit Service Factor 100.00 100.00 82.85

20. Unit Availability Factor 100.00 100.00 82.85

21. Unit Capacity Factor(Using MDC Net) 99.62 101.38 79.40

22. Unit Capacity Factor(Using DER Net) 97.33 99.05 77.78

23. Unit Forced Outage Rate 0.00 0.00 3.84

24. Shutdowns scheduled over next 6 months(Type, Date, and Duration of Each: N/A

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)

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AVERAGE DAILY UNIT POWER LEVEL

- DOCKET NO. 50-271 UNIT Vermont Yankee DATE 030910 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH August DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 504 17. 511

2. 511 18. 511

3. 512 19. 512

4. 509 20. 508

5. 506 21. 501

6. 509 -22. 505

7. 516 23. 507

8. 515 24. 506

9. 510 25. 500

10. 511 26. 499

11. 490 27. 501

12. 519 28. 504

13. 519 29. 501

14. 519 30. 501

15. 519 31. 505

16. 507 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)

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH AUGUST DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 030910 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 03-07 030811 S 0.00 B 4 N/A RB CONROD Opened 79-40 breaker for Power air system repair work Reduction 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 F-Administrative G-Operational Error (Explain)

H- (Explain) -

VYDPF 0411.C )

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DOCKET NO. 50-271 DATE 030910 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414

- REPORT MONTH August

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 99.8% of rated thermal power for the month.

Gross electrical generation was 399,275 MWHe or 98.2% 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.

030811 At 1128 hours0.0131 days <br />0.313 hours <br />0.00187 weeks <br />4.29204e-4 months <br />, commenced a power reduction to 71% to support 79-40 breaker air system repairs. (See Unit Shutdowns and Power Reductions) 030811 At 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br />, completed air system repairs.

030811 At 1639 hours0.019 days <br />0.455 hours <br />0.00271 weeks <br />6.236395e-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)

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