ML20081J137

Monthly Operating Rept for May 1991 for Grand Gulf Nuclear Station Unit 1

ML20081J137
Person / Time
Site:	Grand Gulf
Issue date:	05/31/1991
From:	Cottle W, Daughtery L ENTERGY OPERATIONS, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GNRO-91-00101, GNRO-91-101, NUDOCS 9106210135
Download: ML20081J137 (6)

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Entergy Operations,Inc, i

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W. T. Cotue June 14 1991 U.S. Nuclear Regulatory Comission Mail Station P1-137 Washington, D.C.

20555 Attention:

Document Control Desk

Subject:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 Monthly Operating Report GNRO-91/00101 Gentlemen:

In accordance with the requirement of Technical Specification 6.9.1.10, Entergy Operations is providing the Monthly Operating Report for Grand Gulf Nuclear Station Unit 1 for May 1991 (attachment).

If you have any questions or require additional information, please contact this office.

Yours truly, wrA WTC/TKM/cg attachments: 1.

Operating Status 2.

Average Daily Power Level 3.

Unit Shutdowns and Power Reductions cc:

(See next page)

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I ljA y C 9106210135 910531 PDR ADOCK 05000416 dD R

PDR 7

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June 14, 1991 GNRO-91/00101 Page 2 of 3 cc Mr. D. C. Hintz (w/a)

Mr. J. L. Mathis (w/a)

Mr. R. B. McGehee (w/a)

Mr. N. S. Reynolds (w/a)

Mr. H. L. Thomas (w/o)

Mr. F. W. Titus (w/a)

Mr. Stewart D. Ebneter (w/a)

Regional Administrator U.S. Nuclear Regulatory Commission Region 11 101 Marietta St., N.W., Suite 2900 Atlanta, Georgia 30323 Mr. L. L. Kintner, Project Manager (w/a)

Office of Nuclear Reactor Regulation U.S. Nuclear Pegulatory Commission Mail Stop 11021 Washington, D.C.

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Attachment I to GNR0-91/00101 I

DOCKET NO.

50-416 DATE 06/11/91 COMPLETED BY L. F. Daughtery TELEPHONE (601)437-2134 OPERATING STATUS 1.

Unit Name: GGNS UNIT 1 l Notes:

[

2.

Reporting Period:

May 1991 3.

Licensed Thermal Power (MWT): 3833 MWT 4.

Nameplate Rating (Gross MWE): 1372.5 MWE 5.

Design Electrical Rating (Net MWe): 1250 MWE 6.

Maximum Dependable Capacity (Gross MWe): 1190 MWE 7.

Maximum Dependable Capacity (Net MWe): 1143 MWE 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, in 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 3,623 57,945

12. Number of Hours Reactor Was Critical 639.9 3,500.4 45,467.2

13. Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line 603.5 3,448.0 43,461.7

15. Unit Reserve Shutdown Hours 0

0 0

16. Gross Thermal Energy Generated (MWH) 2,110,180 12,699,220 148,607,291

17. Gross Electrical Energy Generated (MWH) 664,945 4,095,772 47,159,286

18. Net Electrical Energy Generated (MWH) 634,705 3,932,663 45,074,662

19. Unit Service Factor 81.1 95.2 77.9

20. Unit Availability Factor 81.1 95.2 77.9

21. Unit Capacity Factor (Using MDC Net) 74.6 95.0 73.6

22. Unit Capacity Factor (Using DER Net) 68.2 86.8 66.7

23. Unit Forced Outage Rate 18.9 4.8 6.1

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

None

25. If Shut Down At End of Report Period.

Estimated Date of Startup:

NA

26. Units in Test Status (Prior to Commercial Operation).

Forecast Achieved INITI AL CRITICALITY 08/18/82 INITIAL ELECTRICITY 10/20/84 COMMERCIAL OPERATION 07/01/85 MOOPMAY/SCMPFLR

... to GNRO-91/00101 DOCKET N0.

50-416 UNIT 1

DATE 06/11/91 COMPLETED BY L. F. Daughtety_

TELEPHONE 601-437-2334 MONTH May 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(HWe-Net) 1 540.4 17 1163.8 2

581.1 18-923.6 3

957.6 19 0

4 985.5 20 0

5 1165.1-21 0

6 1189.5 22 0

7 1186.4 23 0

8 1180.5 24 0

9 1174.3 25 615.8 10 1173.2 26 998.5 11 1156.6 27 1057.2 12 1163.5 28 1166.1 13 1164.5 29-1167.3 14 1163.0 30 1168.6 15 1168.3 31 1168.0

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1164.7 M00PMAY/SCMPFLR

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-416 UNIT NAME 1

DATE 06/11/91 COMPLETED BY L. F. Daughtery TELEPHONE 601-437-2334 REPORT MONTH May 1991 l

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l Method of l Licensee l l

g Cause & Corrective l

l No. l Date l Type ' Duration l Reason l Shutting Down!

Event l System (Component Action To l

Prevent Recurrence l

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(1) l Hours l

(2)

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Reactor l Report #

l Code l Code

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l (3) l (4) l (5)

I CE FI Continued reactor power reduction l l 91-4/30/90 F

N/A A

5 N/A

,l lto pair RWCU system leakage.

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(See l

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191-5/18/91 l F

140.5 l

B l

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N/A l

AD l SEAL l Reactor Recirculation pump 'A' andl l -l005 l

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l l'B' seals were leaking. Other l

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l iminor maintenance. Seals were l

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Ireplaced.

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1 2

3 4

Method:

Exhibit G - Instructions l

F: Forced Reason:

S: Scheduled A-Equipment Failure 1-Mant.al for Preparation of Data 2-Manual Scram Entry Sheets for Licensee (Explain)

B-Maintenance or Test 3-Automatic Scram Event Report (LER)

C-Refueling 4-Continued File (NUREG-0161)

D-Regulatory Restriction 5-Reduced load E-Operator Training &

6-Other Licensing Examination 5

F-Administrative Exhibit 1-Same Source G-Operational Error (Explain)

H-Other (Explain)

M00PMAY/SCHPFLR

NRC SUBMITTAL CERTIFICATION FORM (Miscellaneous)

I.

Letter Number (List AECM, MAEC, LER, Violation, etc.)

May Operating Report L. F. Daughtery 06/11/91 Document Originator Date II. Certification: Responsible Section/0rganization Engineering Support Page/

Sentence COMMENTS Paragraph Number Number / Numbers'

1. 8 ASIS Data and calculations based on GGNS Unit 1 httachment, Pg. 1, 2&3 l All JSwitchboard Log, Rx Eng. Fuel Accounting l

l Program and STA Log entries.

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1. Basis:

1)

Indicate when an action was or will be done (date) and how.

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I,//// 91 Rei nsible Supv/ Supt

/Date

.;n 2)

If statement of fact list supporting document (s) i.e., UFSAR, P&ID, Procedures, etc.

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(/ -@b, May be a statement or conclusion which is only suppoited by 3) engineering judgement which must be described under basis.

-Responsible' Manager Date /

• Signature indicated certification of the accuracy of indicated portions of the document.

Document may be certified with comments.

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M00PMAY/SCNPFLR

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