BVY-99-090, Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With

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Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With
ML20209G076
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 06/30/1999
From: Balduzzi M, Wallin G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-99-090, BVY-99-90, NUDOCS 9907190012
Download: ML20209G076 (6)
v • d • e


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j . ERN10NT YANKEE NUCLEAR POWER CORPORATION l

P.O. Box 157, Governor Hunt Road Vernon, Vermont 05354-0157 (802) 257 7711 July 8,1999 BVY-99-090 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 6.7.A.3 of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of June.1999 Sincerely, VERMONT YANKEE NUCLEAR POWER CORPORATION

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Michael A. Balduzzi Plant Manager j i

cc: USNRC Region 1 Administrator l USNRC Resident Inspector- VYNPS l I

USNRC Project Manager-VYNPS ,

Vermont Department ofPublic Senice j (

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I VERMONT YANKEE NUCLEAR POWER STATION 1

MONTHLY STATISTICAL REPORT 99-06 FOR THE MONTH OF JUNE 1999

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OPERATING DATA REPORT DOCKET NO.50-271

, , DATE 990710 COMPLETED BY G.A. WALLIN TELEPHONE __(902)258-5414 OPERATING STATUS

1. Unit Name: Vermont Yankee
2. Reporting Period: June
3. Licensed Thermal Power (MWt):1593
4. Nameplate Rating (Gross MWe): 540 1
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 720.00 4343.00 232247.00
12. Number Of Hours Reactor was Critical 720.00 4343.00 194544.16

-13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

-14. Hours Generator On-Line 720.00 4343.00 191067.00

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
16. Gross Thermal Energy Generated (MWH) 1143922.00 6876674.20 287956335.70
17. Gross Electrical Energy Generated (MWH) 385168.00 2359742.00 96401939.00
18. Net Electrical Energy Generated (MWH) 363272.00 2258527.00 91699978.00
19. Unit Service Factor 100.00 100.00 81.20
20. Unit Availability Factor 100.00 100.00 81.20

-21. Unit Capacity Factor (Using MDC Net) 98.90 102.00 77.10

22. Unit Capacity Factor (Using DER Net) 96.70 99.60 75.60
23. Unit Forced Outage Rate 0.00 0.00 -4.43
24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each: 1999 Refueling Outage scheduled to begin on October 29,1999 1 and end on November 30, 1999.
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. 7 Page 1 of 1 RT No. 13.F01.19F

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  • AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Vermont Yankee DATE 990710 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 MONTH June DAY AVERAGE DAILY' POWER LEVEL DAY AVEPAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) l 1. 512 17. 506 2.' 510 18. 509
3. 512' 19. 507
4. 508 20. 503 l

l 5. 507 21. 504

6. 506 22. 502
7. 505 23. 498
8. 486 24. 501
9. 511 25. 504
10. 507 26. 502
11. 506 27. 501
12. 506 28. 500
13. 501 29. 501 l 14.- 501 30. 505 15, 504 31. ---
i. 16. 509 1

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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DOCKET NO. 50-271 DATE 990710

~ COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 REPORT MONTH June

SUMMARY

OF OPERATING EXPERIENCES Highlights l Vermont Yankee operated at 99.7%'of rated thermal power for the month.

l Gross electrical generation was 385,168 MWHe or 98.0% design electrical capacity.

l

-Operating Summary L 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.

990608 At 0140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br />, reducing' power to 75% power to perforin a rod pattern adjustment. (See Unit Shutdowns and Power Reductions) 990608 -At 0218 hours0.00252 days <br />0.0606 hours <br />3.604497e-4 weeks <br />8.2949e-5 months <br />, initiated rod pattern adjustment.

990608 At 0305 hoprs, completed rod pattern adjustment.

990608 At 0430 hours0.00498 days <br />0.119 hours <br />7.109788e-4 weeks <br />1.63615e-4 months <br />, initiated 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. 13.F01.18X

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