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Susquehanna 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

Scram # 58012
2025-10-29 2025-10-30 2 148d - -
Scheduled
2025-03-24 2025-06-03 72 702d 2025-03-28 -4d
Scheduled
2023-03-20 2023-04-22 34 63d 2023-03-20 0d
Unscheduled
2023-01-15 2023-01-16 2 105d - -
Unscheduled
2022-09-29 2022-10-02 4 350d - -
Scram # 55514
2021-10-12 2021-10-14 3 173d - -
Scheduled
2021-03-22 2021-04-22 32 401d 2021-03-20 +2d
Scram # 54525
2020-02-14 2020-02-15 2 300d - -
Scheduled
2019-03-23 2019-04-20 29 714d 2019-03-23 0d
Scheduled
2017-03-04 2017-04-08 36 149d 2017-03-04 0d
Unscheduled
2016-10-02 2016-10-06 5 139d - -
Scram # 51925
2016-05-13 2016-05-16 4 356d - -
Scheduled
2015-04-11 2015-05-23 43 210d 2015-04-11 0d
Unscheduled
2014-09-06 2014-09-13 8 64d - -
Unscheduled
2014-06-26 2014-07-04 9 94d - -
Unscheduled
2014-03-21 2014-03-24 4 7d - -
Unscheduled
2014-03-02 2014-03-14 13 161d - -
Scram # 49342
2013-09-14 2013-09-22 9 109d - -
Scheduled
2013-04-14 2013-05-28 45 109d 2013-04-15 -1d
Scram # 48607
2012-12-20 2012-12-26 7 2d - -
Scram # 48607
2012-12-16 2012-12-18 3 18d - -
Unscheduled
2012-11-28 2012-11-28 1 3d - -
Unscheduled
2012-11-21 2012-11-25 5 3d - -
Scram # 48496
2012-11-09 2012-11-18 10 149d - -
Unscheduled
2012-05-31 2012-06-13 14 284d - -
Scram # 47172
2011-08-20 2011-08-21 2 55d - -
Scheduled
2011-04-05 2011-06-26 83 346d 2011-04-05 0d
Unscheduled
2010-04-24 2010-04-24 1 344d - -
Scheduled
2009-04-07 2009-05-15 39 727d 2009-04-07 0d
Scheduled
2007-03-04 2007-04-11 39 138d 2007-03-03 +1d
Unscheduled
2006-09-30 2006-10-17 18 149d - -
Unscheduled
2006-04-29 2006-05-04 6 323d - -
Unscheduled
2005-06-07 2005-06-10 4 39d - -
Unscheduled
2005-04-29 2005-04-29 1 17d - -
Unscheduled
2005-04-11 2005-04-12 2 20d - -
Scheduled
2005-02-27 2005-03-22 24 680d 2005-02-26 +1d
Scheduled
2003-03-08 2003-04-19 43 147d 2003-03-08 0d
Unscheduled
2002-10-01 2002-10-12 12 527d - -
Scheduled
2001-03-10 2001-04-22 44 199d 2001-03-10 0d
Unscheduled
2000-08-18 2000-08-23 6 240d - -
Unscheduled
1999-12-18 1999-12-22 5 186d - -
Unscheduled
1999-06-09 1999-06-15 7 44d - -
Unscheduled
1999-04-26 1999-04-26 1 2d - -
Scheduled
1999-03-13 1999-04-24 43 - 1999-03-13 0d
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