ML20135F693

Monthly Operating Rept for Aug 1985

ML20135F693
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	08/31/1985
From:	Burger F, Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
VYV-85-410, NUDOCS 8509170359
Download: ML20135F693 (7)

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VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 85-08 FOR THE MONTH OF AUGUST, 1985

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OPERATING DATA REPORT Docket No.

50-271 Date 850910 Completed by F.J. Buraer Telephone (802) 257-7711 OPERATING STATUS Notes:

1.

Unit Name:

Vermont Yankee 2.

Reporting Period:

Auaust 3.

Licensed Thermal Power (MWt):

1593 l

4.

NImeplate Rating (Gross MWe):

540 5.

Design Electrical Rating (Net MWe):514(oc) 504(cc) 6.

M:ximum Dependable Capacity (Gross MWe):

535 l

7.

Maximum Dependable Capacity (Net MWe):

504 8.

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

N/A 9.

Power level to which restricted, if any (Net HWe):

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

12. Number of Hours Reactor was Critical 744.00 5815.97 92629.90

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 744.00 5810.55 90240.62 1

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated (MWH) 1038467.00 8943232.50 131502242.00

17. Gross Electrical Energy Generated (MWH) 334126.00 2970735.00 43760483.00

18. Net Electrical Energy Generated (MWH) 311137.00 2818342.00 41519190.00

19. Unit Service Factor 100.00 99.65 79.52

20. Unit Availability Factor 100.00 99.65 79.52

21. Unit Capacity Factor (using MOC Net) 82.98 95.90 72.60

22. Unit Capacity Factor (using DER Net) 81.36 94.03 71.18

23. Unit Forced Outage Rate 0.00

.35 6.96 i

24. Shutdowns scheduled over next 6 months (Tyoe, Date and Duration of Each):

Refuelina outaae scheduled to becin September 21, 1985 and continue to May 3, 1986.

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 u

AVERAGE DAILY UNIT POWER LEVEL Docket No.

50-271 Unit Vermont Yankee Date 850910 Completed by F.J. Burger Telephone (802) 257-7711 MONTH August, 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 440 17 418 2

440 18 416 3

439 19 415 4

436 20 409 5

433 21 412 6

431 22 412 7

427 23 412 8

424 24 410 9

425 25 405 10 424 26 404 11 418 27 401 12 424 28 402 13 423 29 404 14 416 30 404 15 413 31 403 16 416 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.

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Dockst No.

50-271 Unit V2rmont Yrnkee UNIT SHUTDOWNS AND POWER REDUCTIONS Date 850910 Completed by F. J. Burger REPORT MONTH August Telephone (802) 257-7711 1

2 3

4 5

No.

Date Typed Duration Reason Method of License System Component Cause and Corrective Action to (hours)

Shutting Down Event Code Code Prevent Recurrence Reactor Report #

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1 2

3 4

F-Forced A-Equipment Failure (Explain)

Method:

Exhibit G - Instructions

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S-Scheduled B-Maintenance or Test 1-Manual for Preparation of Data Entry i

C-Refueling 2-Manual Scram Sheets for Licensee Event D-Regulatory Restriction 3-Automatic Scram Report (LER) File (NUREG 0161)

E-Operator Training and License Examination 4-Other (Explain)

F-Administrative 5

G-Operational Error (Explain)

Exhibit I - Same Source i

H-Other (Explain)

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Dockst No.

50-271 Unit Virmont Yankee Date 850910 Completed by F.J. Buraer Telephone (802) 257-7711 REPORT MONTH Auaust

SUMMARY

OF OPERATING EXPERIENCES i

Highlights Vermont Yankee operated at 87.6% of rated thermal power for the month.

Gross electrical generation was 334,126 MWH, or 83.1% of design electrical capacity.

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Operatina Summarv At the beginning of the reporting period the plant was operating at 91.4% of rated thermal power. The coast down to the 1985 refueling outage was in progress.

i There were no other pertinent items of interest for the month.

At the end of the reporting period the plant was operating at 83.9% of rated thermal power.

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l VERMONT YANKEE NUCLEAR POWER CORPORATION P. O. BOX 157 GOVERNOR HUNT ROAD VERNON, VERMONT 05354 -

VYV 85-410 September 10, 1985 U. S. Nuclear Regulatory Commission Director, Office of Management Information and Program Control Washington, D. C.

20555

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of August,1985.

Very truly yours, VERMONT YAtKEE NUCLEAR POWER CORPORATION W

WM Warren P. Murphj/

Vice President and Manager of Operations WPM /FJB/gmv MSR1.1 9

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