ML020320397

December 2001 Monthly Operating Report for Vermont Yankee Nuclear Power Station

ML020320397
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	01/10/2002
From:	Bronson K Vermont Yankee
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY-02-01
Download: ML020320397 (6)

Text

VERMONT YANKEE NUCLEAR POWER STATION P.O. Box 157, Governor Hunt Road Vernon, Vermont 05354-0157 (802) 257-7711 January 10, 2002 BVY-02-01 United States Nuclear Regulatory Commission ATr'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 December, 2001.

Sincerely, VERMONT YANKEE NUCLEAR POWER STATION Kevin H. Bronson Plant Manager cc: USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS

VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 01-12 FOR THE MONTH OF DECEMBER 2001

OPERATING DATA REPORT DOCKET NO.50-271 DATE 020110 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS

1. Unit Name:

Vermont Yankee

2. Reporting Period:

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 254208.00

12. Number Of Hours Reactor was Critical 744.00 8191.75 215115.42

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 8146.24 211546.44

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated(MWH) 1084652.80 12790376.25 320190083.66

17. Gross Electrical Energy Generated(MWH) 371612.00 4373388.00 107429589.00

18. Net Electrical Energy Generated(MWH) 357010.00 4171120.00 102219743.00

19. Unit Service Factor 100.00 93.00 82.20

20. Unit Availability Factor 100.00 93.00 82.20

21. Unit Capacity Factor(Using MDC Net) 94.10 93.40 78.60

22. Unit Capacity Factor(Using DER Net) 91.90 91.20 77.00

23. Unit Forced Outage Rate 0.00 0.65 4.08

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)

DP 0411 Rev.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-271 UNIT Vermont Yankee DATE 020110 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.

525

17.

473

2.

528

18.

446

3.

519

19.

516

4.

520

20.

523

5.

529

21.

529

6.

363

22.

529

7.

302

23.

529

8.

307

24.

526

9.

368

25.

529

10.

497

26.

530

11.

448

27.

529

12.

527

28.

529

13.

528

29.

529

14.

487

30.

529

15.

300

31.

526

16.

352 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.

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH DECEMBER 1

F: Forced S: Scheduled VYDPF 0411.03 DP 0411 Rev.

7 Page 1 of 1 DOCKET NO UNIT NAME DATE COMPLETED BY TELEPHONE 2 Reason:

3 Method:

A-Equipment Failure (Explain) 1 -

Manual B-Maintenance or Test 2 - Manual Scram C-Refueling 3 - Automatic Scram D-Regulatory Restriction 4 - Other (Explain)

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

H-(Explain) -

Rod pattern adjustment 50-271 Vermont Yankee 020110 G.A. Wallin (802)258-5414 4 Exhibit G-Instructions for Preparation of Data Entry Sheets for License Event Report (LER) File (NUREG 0161) 5 Exhibit I -

Same Source 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 01-08 011206 S

0.00 B

4 N/A RB CONROD Power suppression testing.

Power Reduction 01-09 011211 S

0.00 H

4 N/A RB CONROD Rod pattern adjustment.

Power Reduction 01-10 011214 S

0.00 B

4 N/A RB CONROD Power suppression testing.

Power Reduction 01-11 011218 S

0.00 H

4 N/A RB CONROD Rod pattern adjustment.

Power Reduction

DOCKET NO.

50-271 DATE 020110 COMPLETED BY G.A.

WALLIN TELEPHONE (802)258-5414 REPORT MONTH December

SUMMARY

OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 91.5 of rated thermal power for the month.

Gross electrical generation was 371,612 MWHe or 91.5% 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.

011206 At 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />, reducing power to 50% to perform power suppression testing (See Unit Shutdowns and Power Reductions) 011206 At 0938 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.56909e-4 months <br />, initiated power suppression testing.

011209 At 0445 hours0.00515 days <br />0.124 hours <br />7.357804e-4 weeks <br />1.693225e-4 months <br />, completed power suppression testing.

011209 At 1315 hours0.0152 days <br />0.365 hours <br />0.00217 weeks <br />5.003575e-4 months <br />, initiated a return to full power.

011211 At 0207 hours0.0024 days <br />0.0575 hours <br />3.422619e-4 weeks <br />7.87635e-5 months <br />, reducing power to 70% for a rod pattern adjustment.

(See Unit Shutdowns and Power Reductions) 011211 At 0344 hours0.00398 days <br />0.0956 hours <br />5.687831e-4 weeks <br />1.30892e-4 months <br />, completed rod pattern adjustment and began a return to full power.

011214 At 1904 hours0.022 days <br />0.529 hours <br />0.00315 weeks <br />7.24472e-4 months <br />, reducing power to 55% to perform additional power suppression testing (See Unit Shutdowns and Power Reductions) 011214 At 2021 hours0.0234 days <br />0.561 hours <br />0.00334 weeks <br />7.689905e-4 months <br />, initiated power suppression testing.

011216 At 0705 hours0.00816 days <br />0.196 hours <br />0.00117 weeks <br />2.682525e-4 months <br />, completed power suppression testing.

011216 At 1526 hours0.0177 days <br />0.424 hours <br />0.00252 weeks <br />5.80643e-4 months <br />, initiated a return to full power.

011218 At 0205 hours0.00237 days <br />0.0569 hours <br />3.38955e-4 weeks <br />7.80025e-5 months <br />, reducing power to 70% for a rod pattern adjustment.

(See Unit Shutdowns and Power Reductions) 011218 At 0338 hours0.00391 days <br />0.0939 hours <br />5.588624e-4 weeks <br />1.28609e-4 months <br />, completed rod pattern adjustment and 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. 7 Page 1 of 1 RT No.

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