ML20072S554

Monthly Operating Rept for Mar 1991 for Monticello Nuclear Generating Plant

ML20072S554
Person / Time
Site:	Monticello
Issue date:	03/31/1991
From:	Parker T, Paustian H NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9104160335
Download: ML20072S554 (5)

Text

_

NOrtham States Power Company 414 Nicollet Mall Minneapoks. Minnesota 65401 1927 Triophone (612) 330 6500 April 11, 1991 Monticello Technical Specifications Section 6.7 A.3 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR CENERATINC PLANT Docket No. 50 263 License No. DPR 22 Monthly Operating Report March. 1091 Attached is the Monthly Operating Report for March, 1991 for the Monticello Nuclear Cenerating Plant.

O[

O v Thomas M Parker Manager Nuclerw Support Service TMP/j lk C:

Director, Office of Resource Management Regional Administrator III, NRC NRK Project Manager, NRC NRC Resident Inspector 4

MPCA Attn: J W Ferman Attachment 9104160335 910331 h

pa ntiocxocoogs

[

OPERATING DATA REPORT DOCKET NO.

50-263 DATE 4-1-91 COMPLFTED BY H.

H. PausIIan TELEPHONE 612/295-5151 OPERATING STATUS

! Notes i

1. Unit Name :

Monticello 1

2. Reporting periods HARCH

3. Licensed T1ermal Power (MWt):

1670 1

1

4. Nameplate Rating (Gross MWe):

569 i

s

5. Dosign Electrical Rating (Net MWe):

545.4 I

t

6. Maximum Dependable Capacity (Gross MWe):

564 I

t

7. Maximum Dependable Capacity (Net MWe),

~~536 1

1

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 Anyt __N/A THIS MONTH YR.-TO-DATE CUMULATIVE

11. Hours In Reporting Period 744 2160 173137

12. Number Of Hours Reactor Was Critical 726.7

' 1981.7 138324.5

13. Roactor Reserve Shutdown Hours 0.0 0.0 940.7

~~

14. Hours Generator On-Line

~~~724.3 1959.9 135710.4

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

~~

16. Gross Thermal Energy Generated (MWH) 976454 2866989 207189923

17. Gross Electrical Energy Generated (MWH) ~ 325264 960203

~ 70088763

~

18. Not Electrical Energy Generated (MWH)

~~310867

~~ 919340

~~67026587

19. Unit Service ractor

~~ 97.4%

90.7%

78.4%

~~

~~

20. Unit Availability Factor

~~ 97.4%

90.7%

78.4%

21. Unit Capacity ractor (Using MDC Net)

~~ 78.0%

79.4%

72.2\\

22. Unit Capacity Factor (Using DER Net)

~~ 76.6%

78.0%

71.0%

~

22. Unit Forced Outage Rete 0.0%

5.0%

4.0%

~~

24. Shutdowns Scheduled Over Next 12 Months TType, Date, and Duration 6f tach)

_, Refueling Outage, April 1, 1991, 56 Days

25. If Shut Down At End Of Report Period, Estimated Date Of Startup:May 26, 1991

26. Units In Test Status (Prior to Commercial Operation): N/A rorecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

l NARRAT8VE

SUMMARY

OF OPERATING EXPER3ENCE DOCKET NO.

50-263 DATE 4-1-91 CCMPLETED BY

}l.

H.

Paustian TELEP110NE 612/295-5151 MONTil

._,MA R Cl!

3-1-91 to Power operation.

Cycle 14 coastdown.

3-31-91 3-31-91 Plant shutdown for End-of-Cycle 14 refueling outage.

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

(

AVERAGE DATLY UNIT POWER LEVEL DOCKET NO.

50-263 UNIT Monticello -

DATE 4-1-91 COMPLETED BY H.

H.

Paustian 4

TELEPHONE 612/295-5151 MONTH MARCH DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 453 17 429 2

457 18 425 3

451 19 426 4

449 20 431 5

_ a ' */

21 412 6

446 22 423 7

445 23 419 8

443 24 417 9

442 25 416 10 439 26 413 11 438 27 425 12 434 28 398 13 435 29 408 14 432 30 409 15 431 31 30 16 429 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.

INIT SMfrDOWN3 AND POWER REDUCTIONS DOOTT NO. 50-263 INIT NAME Monticello

+

DATE 04-02-91 COMPLETED BT H. H. Paustian REPORT N0Pml March TEIIPHONE _612/295-5151-i Ty(pe (hours)

(2) of No.

Code Cause & Corrective Duration Reason 'Hethod IIR System

,No.

Date Action to 1)

Shutdown (4)

(5)

Prevent. Recurrence (3) 3 03-31-91 S

19.7 C

1 N/A Plant shutdown for 1991 (EOC14) refueling outage l

'2-3 4'

l'

. Forced' Reason:

Method:

Draft IEEE Standard F:

S: Scheduled -

A-Equipment Failure (Explain) 1--Mansal 805-1984(P905-D5)

B-Maintenance or Test-2-Manual Scram C-Refueling

.3-Automatic Scram 5

Stor Restriction -

4-Other (Explaic)

IEEE Standard 803A-1983 rator Training & License Examinatfort F

inistrstive G-operational Error (Explain)

R 4ther (Explain)

.