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Catawba 1 - Status & History

Comprehensive reactor performance metrics, cycle analysis, and historical outage data.

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Duration of each outage in days, shown chronologically. Green bars are scheduled refueling outages, red bars are forced/unscheduled. The orange dashed line marks the average duration. Extended outages (>180 days) and D&D periods are excluded.

Outage Duration Trend

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Days between consecutive scheduled refueling outage starts, showing operating cycle regularity. The purple dashed line marks the average cycle length. Most U.S. reactors operate on 18-month (547 day) or 24-month (730 day) cycles.

Cycle Length History

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Monthly capacity factor with outage events overlaid as red bands. Green bars show average power level per month. Toggle to Daily view for raw daily data.

Power History

Unscheduled
2025-01-29 2025-01-31 3 93d - -
Scheduled
2024-10-01 2024-10-28 28 493d 2024-09-27 +4d
Scheduled
2023-04-19 2023-05-27 39 532d 2023-04-22 -3d
Scheduled
2021-10-17 2021-11-03 18 504d 2021-11-20 -34d
Scheduled
2020-05-02 2020-05-31 30 77d 2020-05-02 0d
Scram # 54523
2020-02-13 2020-02-15 3 429d - -
Scheduled
2018-11-17 2018-12-11 25 544d 2018-11-17 0d
Scheduled
2017-04-29 2017-05-22 24 500d 2017-04-29 0d
Scheduled
2015-11-21 2015-12-16 26 515d 2015-11-21 0d
Scheduled
2014-05-06 2014-06-24 50 496d 2014-05-03 +3d
Scheduled
2012-11-25 2012-12-26 32 224d 2012-11-24 +1d
Scram # 47805
2012-04-05 2012-04-15 11 111d - -
Unscheduled
2011-12-16 2011-12-16 1 195d - -
Scheduled
2011-04-24 2011-06-04 42 425d 2011-05-07 -13d
Unscheduled
2010-02-18 2010-02-23 6 66d - -
Scheduled
2009-11-07 2009-12-14 38 506d 2009-11-21 -14d
Scheduled
2008-05-04 2008-06-19 47 492d 2008-05-03 +1d
Scheduled
2006-11-11 2006-12-29 49 154d 2006-11-10 +1d
Unscheduled
2006-05-21 2006-06-10 21 350d - -
Scheduled
2005-05-08 2005-06-05 29 153d 2005-05-07 +1d
Unscheduled
2004-12-06 2004-12-06 1 283d - -
Unscheduled
2004-02-22 2004-02-27 6 65d - -
Scheduled
2003-11-08 2003-12-19 42 61d 2003-11-08 0d
Unscheduled
2003-08-29 2003-09-08 11 205d - -
Unscheduled
2003-02-05 2003-02-05 1 264d - -
Scheduled
2002-04-27 2002-05-17 21 464d 2002-04-27 0d
Unscheduled
2001-01-18 2001-01-18 1 59d - -
Scheduled
2000-10-15 2000-11-20 37 244d 2000-10-15 0d
Unscheduled
2000-02-14 2000-02-14 1 267d - -
Scheduled
1999-04-22 1999-05-23 32 - 1999-04-22 0d
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