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Surry 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

Scheduled
2025-10-12 2025-12-28 78 63d 2025-10-12 0d
Scram # 57854
2025-08-07 2025-08-10 4 430d - -
Scheduled
2024-04-07 2024-06-03 58 478d 2024-04-06 +1d
Scheduled
2022-10-30 2022-12-16 48 517d 2022-10-23 +7d
Scheduled
2021-04-25 2021-05-31 37 513d 2021-04-25 0d
Scheduled
2019-10-19 2019-11-29 42 374d 2019-10-14 +5d
Unscheduled
2018-10-06 2018-10-10 5 129d - -
Scheduled
2018-04-21 2018-05-30 40 254d 2018-04-22 -1d
Unscheduled
2017-08-10 2017-08-10 1 273d - -
Scheduled
2016-10-22 2016-11-10 20 340d 2016-10-23 -1d
Scram # 51467
2015-10-14 2015-11-17 35 85d - -
Unscheduled
2015-07-11 2015-07-21 11 46d - -
Scheduled
2015-04-19 2015-05-26 38 515d 2015-04-19 0d
Scheduled
2013-10-20 2013-11-20 32 502d 2013-10-20 0d
Scheduled
2012-05-06 2012-06-05 31 379d 2012-04-22 +14d
Scram # 46761
2011-04-17 2011-04-23 7 137d - -
Scram # 46761
2011-04-17 2011-04-23 7 6d - -
Scheduled
2010-10-24 2010-12-01 39 135d 2010-10-24 0d
Unscheduled
2010-06-09 2010-06-11 3 395d - -
Scheduled
2009-04-19 2009-05-10 22 170d 2009-04-19 0d
Unscheduled
2008-10-28 2008-10-31 4 190d - -
Unscheduled
2008-04-17 2008-04-21 5 139d - -
Scheduled
2007-10-21 2007-11-30 41 287d 2007-10-21 0d
Unscheduled
2007-01-07 2007-01-07 1 228d - -
Scheduled
2006-04-23 2006-05-24 32 176d 2006-04-22 +1d
Unscheduled
2005-10-20 2005-10-29 10 254d - -
Unscheduled
2005-02-05 2005-02-08 4 65d - -
Scheduled
2004-11-01 2004-12-02 32 378d 2004-10-30 +2d
Unscheduled
2003-10-13 2003-10-20 8 22d - -
Unscheduled
2003-09-19 2003-09-21 3 99d - -
Scheduled
2003-04-20 2003-06-12 54 84d 2003-04-20 0d
Unscheduled
2003-01-26 2003-01-26 1 2d - -
Unscheduled
2003-01-14 2003-01-24 11 404d - -
Scheduled
2001-10-14 2001-12-06 54 161d 2001-10-14 0d
Unscheduled
2001-05-05 2001-05-06 2 192d - -
Unscheduled
2000-10-25 2000-10-25 1 169d - -
Scheduled
2000-04-16 2000-05-09 24 - 2000-04-16 0d
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