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Watts Bar 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 # 57810
2025-07-14 2025-07-16 3 63d - -
Scheduled
2025-04-12 2025-05-12 31 402d 2025-04-11 +1d
Scram # 57006
2024-03-05 2024-03-06 2 35d - -
Scram # 56935
2024-01-28 2024-01-30 3 62d - -
Scheduled
2023-11-04 2023-11-27 24 91d 2023-11-03 +1d
Scram # 56660
2023-08-05 2023-08-05 1 37d - -
Scram # 56593
2023-06-28 2023-06-29 2 363d - -
Scheduled
2022-03-02 2022-06-30 121 152d 2022-02-28 +2d
Unscheduled
2021-09-11 2021-10-01 21 177d - -
Scram # 55143
2021-03-18 2021-03-18 1 119d - -
Scheduled
2020-10-24 2020-11-19 27 146d 2020-10-24 0d
Unscheduled
2020-05-16 2020-05-31 16 360d - -
Scram # 54077
2019-05-22 2019-05-22 1 7d - -
Scheduled
2019-04-13 2019-05-15 33 66d 2019-04-13 0d
Unscheduled
2019-02-03 2019-02-06 4 160d - -
Scram # 53557
2018-08-23 2018-08-27 5 56d - -
Scram # 53467
2018-06-23 2018-06-28 6 71d - -
Scram # 53327
2018-04-13 2018-04-13 1 120d - -
Scram # 53112
2017-12-12 2017-12-14 3 7d - -
Scheduled
2017-10-28 2017-12-05 39 90d 2017-10-16 +12d
Scram # 52625
2017-03-21 2017-07-30 132 143d - -
Unscheduled
2016-10-23 2016-10-29 7 - - -
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