ML20079H370

Monthly Operating Rept for Sept 1991 for Monticello Nuclear Generating Plant

ML20079H370
Person / Time
Site:	Monticello
Issue date:	09/30/1991
From:	Parker T, Paustian H NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9110110059
Download: ML20079H370 (5)

Text

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Northem States Power Company 414 Nicollet Mall Minneapohs, Minnesota 55401-1927 Telephone (612) 330-5500 October 9, 1991 Mot.ticello Technical Specifications Section 6.7.A.3 US Nuclaar Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Monthly Operating Report September 1991 Attached is the Monthly Operating Report for September 1991 for the Monticello Nuclear Generating Plant.

NN /W Thomas M Parker Manager Nuclear Support Service TMP/mkl C:

Director, Office of Resource Management Regional Administrator-III, NRC NRR Project Manager, NRC NRC Resident Inspector MPCA Attn: J W Ferman Attachment 1

hhl 9110110059 910930 I

j PDR ADOCK 05000263 h(f l

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R PDR f

OPERATING DATA REPORT DOCKET NO.

50-263 DATE 10- 1-91 COMPLETED BY H.

H.

Paustian TELEPIf0NE 612/295-5151 OPERATING STATUS

] Notes

]

1. Unit Name :

Monticello

]

]

2. Reporting period:

SEPTEMBER

]

]

3. Licensed Thermal Power (MWt):

1670

]

]

4. Nameplate Rating (Gross MWe):

569

]

]

5. Design Electrical Rating (Net MWe):

545.4

]

]

6. Maximum Dependable Capacity (Gross MWe): __564

]

]

7. Maximum Dependable Capacity (Net MWe):

536

]

]

8. If Changes Occur in Capacity Rat'ngs (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 6551 177528

12. Number Of Hours Reactor Was Critical 720.0 4866.6 141209.4

13. Reactor Reserve Shutdown Hours 0.0 0.0 940.7

14. Hours Generator On-Line 720.0 4788.4 138538.9

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0 i

16. Gross Thermal Energy Generated (MWH) 1201205 7536937 211859871

17. Gross Electrical Energy Generated'(MWH) 404237 2519240 71647800

18. Net Electrical Energy Generated (MWH) 387133 2400224 68507471

19. Unit Service Factor 100.0%

73.1%

78.0%

20. Unit Availability Factor 100.0%

73.1%

78.0%

21. Unit Capacity Factor (Using MDC Net) 100.3%

68.4%

72.0%-

22. Unit Capacity Factor (Using DER Net) 98.6%

67.2%

70.8%

23. Unit Forced Outage Rate 0.0%

4.4%

4.0%

24. Shutdowns Scheduled Over Next 12 Months (Type, Date, and Duration of.Each)

__None

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 C

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO.

50-263 DATE 10- 1-91 COMPLETED BY H.

H.

Paustian TELEPHONE 612/295-5151 MONTH SEP 9-1-91 to Power operation.

9-30-91 Note: Power operation defined as essentially 100% of rated power except for weekend load drops for specified surveillance testing.

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-263 UNIT Monticello DATE 10- 1-91 COMPLETED BY H.

H.

Paustian TELEPHONE 612/295-5151 L

MONTH OF SEPTEMBER DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

.(MWe-Net) 1

530, 17 538.

2 532.

18 541.

3

529, 19 544.

4 532.

20

__547.

5 529.

21 542.

6 531.

22 543.

7 533.

23 547.

8 534.

24 543.

9

533, 25 541.10-534.

26 543.

11

533, 27 541.

12

537, 28 544.

13

544, 29 542.

14 531.

30

-543.

15 535._

16 536.

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.

UNIT SHUTDrE!S AID POWER REDUCTI0ts DOCITT 10.

50-263 UllIT IAME 7bnticello IATE ~10-01-91 CCMPIETED BY 1. H. Paustlan PEPORT FDimi __ September _

TELEPHotE _612/295-5151-Ib.

Ihte Type Duration Reason Method LER System Caro.

Cause & Gorrective T1)

(fours)

(2) of tb.

Code Code Action to Shutdown (4)

(S)

Prevent Recurrence (3)

Ibne t

l I

1 2

3 4

Reason:

Method:

Draft IEEE Standard F: Fort A-F4 pn.ent Failure (Explain) 1-Manual 805-1984(P805-D5) i S: Scheuw.ed B-Maintenance or Test 2-tenual Scram C-Refueling 3-Automatic Scram 5

D-lator Restriction 4-Other (Explain)

IEEE Standard 803A-1983 E-rat;or Training & License Examination F-Inistrative G-C rational Error (Explain)

H-OJ1er (Explain)

... a

,