ML18037A136

Monthly Operating Rept for Apr 1997 for Nine Mile Point Nuclear Station,Unit 1

ML18037A136
Person / Time
Site:	Nine Mile Point
Issue date:	04/30/1997
From:	Coleman D NIAGARA MOHAWK POWER CORP.
To:
Shared Package
ML17059B552	List: ML17059B551 ML17059B553 ML17059B554 ML18037A136
References
NUDOCS 9705220314
Download: ML18037A136 (8)

Text

OPERATING DATA REPORT DOCKET NO.: 50-220 DATE: 5/06/97 PREPARED BY: D. E. Coleman TELEPHONE: (315) 349-2558 OPERATING STATUS

1. Unit Name: Nine Mile Point Unit //1

2. Reporting Period: April 1997 Notes

3. Licensed Thermal Power (MWt): 1850

4. Nameplate Rating (Gross MWe): 642

5. Design Electrical Rating (Net MWe): 613

6. Maximum Dependable Capacity (Gross MWe): 584

7. Maximum Dependable Capacity (Net MWe): 565

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):

10. Reasons For Restrictions, If Any:

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 719.0 2879.0 242,136.2

12. Number of Hours Reactor Was Critical 0.0 1452.9 163729.9

13. Reactor Reserve Shutdown Hours 0.0 0 1)204.2

14. Hours Generator On-Line 0.0 1445.2 159,801.4

15. Unit Reserve Shutdown Hours 0,0 0 20.4

16. Gross Thermal Energy Generated (MWH) 0.0 2,613,580.0 271,820)360.0

17. Gross Electrical Energy Generated (MWH) 0.0 893,362.0 90,471,818.0

18. Net Electrical Energy Generated (MWH) 0.0 868,938.0 87,730,492.0

19. Unit Service Factor 0.0 50.2 66.0

20. Unit Availability Factor 0.0 50.2 66.0

21. Unit Capacity Factor (Using MDC Net) 0.0 53.4 60.0

22. Unit Capacity Factor (Using DER Net) 0.0 49.2 58.5

23. Unit Forced Outage Rate 0.0 2.8 22.2

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

25. If shutdown At End of Report Period, Estimated Date of Startup: May 6, 1997 97052203 j4 7705i2 PDR R PDR ADGCK 05000220

I DOCKET NO.: 50-220 DATE: 5/06/97 PREPARED BY: D. E. Coleman TELEPHONE: (315) 349-2558 MONTH April 1997 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAILYPOWER LEVEL (Mwe-Net) (Mwe-Net) 1 17 2 18 3 19 4 20 5 21 6 22 7 23 8 24 9 25 10 26 11 27 12 28 13 29 14 30 15 16 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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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO: 50-220 UNIT NAME: t%VIPf1 DATE: 5/06/97 REPORT MONTH - April 1997 PREPARED BY: D. E. CoIeman ~

TELEPHONE: (315) 349-2558 Method of & Corrective No. Date Duration (Hours)

Shutting Reason'own Reactor Licensee Event Report //

Code'ode'ause System Component Action to Prevent Recurrence 970303 719.0 C/A The unit was shutdown for a scheduled 354ay refuel outage and has been extended for work on the core shroud.

3 5 F: Forced Reason: Method: Exhibit G - Instructions Exhibit ISame Source S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File (NUREG4)161)

D-Regulatory Restriction 4-Other (Explain)

E-Operator Training & License Exam F-Administrative G-Operational Error (Explain)

H-Other (Explain)

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NIAGARA MOHAWKPOWER CORPORATION NINE MILE POINT NUCLEAR STATION UNIT ¹1 NARRATIVE OF OPERATING EXPERIENCE The station operated during the month of April 1997 with a Unit Availability Factor of 0.0%

and a Net Design Electrical Capacity Factor of 0.0%. There were no challenges to the Electromatic Relief Valves. Reductions in Capacity Factor were due to a scheduled 35 day refuel outage. The outage was extended to perform inspections and modify tie rods for the core shroud. The outage is still ongoing.

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