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Fort Calhoun - Status & History

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

Decommissioned

Permanently shut down on 2016-10-24. Outage statistics below reflect only the operating period. The final shutdown is not counted as an outage.
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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

Scheduled
2016-10-25 Decommissioned 1 (D&D) 124d 2016-10-01 +24d
Scram # 52033
2016-06-23 2016-06-23 1 330d - -
Unscheduled
2015-07-21 2015-07-29 9 43d - -
Scheduled
2015-04-12 2015-06-08 58 113d 2015-04-13 -1d
Scram # 50688
2014-12-18 2014-12-20 3 274d - -
Scram # 49926
2014-03-18 2014-03-19 2 65d - -
Scram # 49717
2014-01-10 2014-01-12 3 23d - -
Scheduled
2011-04-10 2013-12-18 984 64d 2011-04-10 0d
Unscheduled
2011-02-05 2011-02-05 1 42d - -
Unscheduled
2010-12-24 2010-12-25 2 256d - -
Unscheduled
2010-04-09 2010-04-12 4 112d - -
Scheduled
2009-11-01 2009-12-18 48 503d 2009-10-11 +21d
Scheduled
2008-04-20 2008-06-16 58 29d 2008-04-19 +1d
Unscheduled
2008-03-16 2008-03-22 7 469d - -
Scheduled
2006-09-10 2006-12-03 85 127d 2006-09-09 +1d
Unscheduled
2006-04-30 2006-05-06 7 322d - -
Unscheduled
2005-06-05 2005-06-12 8 6d - -
Scheduled
2005-02-27 2005-05-30 93 327d 2005-02-26 +1d
Unscheduled
2004-03-27 2004-04-06 11 150d - -
Scheduled
2003-09-13 2003-10-29 47 469d 2003-09-13 0d
Scheduled
2002-05-04 2002-06-01 29 371d 2002-05-04 0d
Unscheduled
2001-03-16 2001-04-28 44 131d - -
Scheduled
2000-10-14 2000-11-05 23 195d 2000-10-14 0d
Unscheduled
2000-04-01 2000-04-02 2 143d - -
Unscheduled
1999-10-02 1999-11-10 40 - - -
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