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Prairie Island 2 - 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

Scheduled
2025-10-11 2025-11-14 35 336d 2025-10-02 +9d
Scram # 57404
2024-10-30 2024-11-09 11 237d - -
Scram # 57003
2024-03-04 2024-03-07 4 3d - -
Scheduled
2023-10-07 2024-03-01 147 113d 2023-10-06 +1d
Unscheduled
2023-06-08 2023-06-16 9 7d - -
Scram # 56543
2023-05-28 2023-06-01 5 577d - -
Scheduled
2021-10-02 2021-10-28 27 706d 2021-10-01 +1d
Scheduled
2019-10-05 2019-10-27 23 685d 2019-10-04 +1d
Scheduled
2017-10-14 2017-11-19 37 600d 2017-10-13 +1d
Scram # 51609
2015-12-18 2016-02-22 67 15d - -
Scheduled
2015-10-17 2015-12-03 48 128d 2015-10-16 +1d
Scram # 51136
2015-06-08 2015-06-11 4 65d - -
Scram # 50950
2015-04-04 2015-04-04 1 10d - -
Unscheduled
2015-03-06 2015-03-25 20 287d - -
Unscheduled
2014-05-18 2014-05-23 6 136d - -
Scheduled
2013-09-21 2014-01-02 104 482d 2013-09-21 0d
Scheduled
2012-02-22 2012-05-27 96 126d 2012-02-18 +4d
Unscheduled
2011-10-05 2011-10-19 15 148d - -
Scram # 46830
2011-05-10 2011-05-10 1 350d - -
Unscheduled
2010-05-25 2010-05-25 1 2d - -
Scheduled
2010-04-17 2010-05-23 37 532d 2010-04-15 +2d
Scheduled
2008-09-20 2008-11-01 43 532d 2008-09-17 +3d
Unscheduled
2007-04-06 2007-04-07 2 30d - -
Unscheduled
2007-03-01 2007-03-07 7 78d - -
Scheduled
2006-11-15 2006-12-13 29 268d 2006-11-14 +1d
Unscheduled
2006-02-06 2006-02-20 15 241d - -
Scheduled
2005-04-16 2005-06-10 56 13d 2005-04-15 +1d
Unscheduled
2005-03-31 2005-04-03 4 132d - -
Unscheduled
2004-11-18 2004-11-19 2 406d - -
Scheduled
2003-09-13 2003-10-09 27 561d 2003-09-13 0d
Scheduled
2002-02-02 2002-03-01 28 92d 2002-02-02 0d
Unscheduled
2001-11-01 2001-11-02 2 150d - -
Unscheduled
2001-05-10 2001-06-04 26 338d - -
Scheduled
2000-04-29 2000-06-06 39 447d 2000-04-29 0d
Unscheduled
1999-02-07 1999-02-07 1 - - -
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