ML20081M770

Corrected Monthly Operating Rept for Apr 1991 for Byron Nuclear Power Station Unit 2

ML20081M770
Person / Time
Site:	Byron
Issue date:	04/30/1991
From:	Ehle D COMMONWEALTH EDISON CO.
To:
Shared Package
ML20081M686	List: ML20081M679 ML20081M763 ML20081M770 ML20081M786
References
NUDOCS 9107100113
Download: ML20081M770 (1)

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.. 1 DdPIRATll1G DATAJTP. ORT 1 DOCKET NO.: 050-455 UNIT: Dyron Two DATE: 05/08/91 COMPILED BY: D. Ehle TELEPHONE: (815)234-5441 x2263 OPERATING STATUS

1. Reporting Period: April, 1991. Gross Hours: 719

2. Currently Authorized Power Level 3411 (MWt)

Design Electrical Rating: 1175 (MWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable Capacity: 1105 (MWe-net)

3. Power Level to Which Restricted (If Any): N/A

4. Reasons for Restriction (If Any):

THIS MONTH YR TO DATE CUMULATIVE *

5. Report Period Hrs. 719 2,879 32,376

6. Rx Critical Hours 719 2,879 27,611.1

7. Rx Reserve Shutdown Hours 0 0 0

8. Hours Generator on Line 719 2,879 27,163.6.

9. Unit Reserve Shutdown Hours 0 0 0

10. Gross Thermal Energy (MWH) 2,341,058 9,424,754 73,736,146

11. Gross Elec. Energy (MWH) 798,248 3,218,099 24,956,194

12. Net Elec. Energy (MWH) 759,753 3,062,193 23,466,522

13. Reactor Service Factor 100 100 '85.3

14. Reactor Availability Factor 100 100 85.3

15. Unit Service Factor 100 100 83.9

16. Unit Availability Factor 100 100 83.9

17. Unit Capacity Factor (MDC net) 95.6 96.3 65.6

18. Unit Capacity Factor (DER net) 94.3 95.0 64.7

19. Unit Forced Outage Hrs. 0 0 886.4

20. Unit Forced Outage Rate 0 0 3.2

21. Shutdowns Scheduled Over Next 6 Months: None

22. If Shutdown at End of Report Period, Estimated Date of Startup:

23. Units in Test Status (Prior to Commercial Operation): None

• Note - The cumulative numbers do not reflect power j generated prior to commercial service.

l (0625M/0062M/3) 9107100113 910621 i

PDR ADOCK 05000455 l- R PDR