?
Days of continuous operation since the last outage ended (Started 2025-10-29). Clean run (no forced outages since last refueling).
184
Current Run
days ✔
?
Longest recorded period of continuous operation between outages (2009-05-06 to 2010-10-11).
523
Record Run
days
?
Breaker-to-Breaker runs — continuous operation exceeding the cycle-adjusted threshold (454 days for this 18-month cycle unit) with no trips to 0% power.
7
B2B Runs
?
Lifetime capacity factor: average power level across all recorded days (100% = always at full power).
90.6%
Capacity Factor
?
Total number of scheduled refueling outages detected in the historical data.
23
Outages
since 1999
?
Average time from first power generation (>0%) to sustained full power (≥95% for 2+ days) across the last 3 scheduled outages.
5.7
Avg Startup
days (last 3)
?
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
?
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
?
Time in days from first power generation (>0%) to sustained full power (≥95% for 2+ consecutive days) after each scheduled refueling outage. The dashed line marks the average. Includes startup testing holds and power dips.
Startup Duration Trend
?
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
| Type ⇅ | Actual Start ⇅ | Actual End ⇅ | Duration ⇅ | Days Online ⇅ | Scheduled | Delta |
|---|---|---|---|---|---|---|
|
Scheduled
|
2025-10-29 | 2025-10-29 | 1 | 5d | 2025-09-17 | +42d |
|
Scheduled
|
2025-09-29 | 2025-10-24 | 26 | 508d | 2025-09-17 | +12d |
|
Scheduled
|
2024-04-08 | 2024-05-09 | 32 | 429d | 2024-04-05 | +3d |
|
Scram
# 56329
|
2023-02-02 | 2023-02-04 | 3 | 43d | - | - |
|
Scheduled
|
2022-09-19 | 2022-12-21 | 94 | 45d | 2022-09-18 | +1d |
|
Scram
# 56028
|
2022-08-04 | 2022-08-05 | 2 | 468d | - | - |
|
Scram
# 55206
|
2021-04-23 | 2021-04-23 | 1 | 6d | - | - |
|
Scheduled
|
2021-03-22 | 2021-04-17 | 27 | 516d | 2021-03-22 | 0d |
|
Scheduled
|
2019-09-30 | 2019-10-23 | 24 | 217d | 2019-09-29 | +1d |
|
Unscheduled
|
2019-02-20 | 2019-02-25 | 6 | 145d | - | - |
|
Unscheduled
|
2018-09-25 | 2018-09-28 | 4 | 138d | - | - |
|
Scheduled
|
2018-04-09 | 2018-05-10 | 32 | 8d | 2018-04-01 | +8d |
|
Scheduled
|
2018-03-27 | 2018-04-01 | 6 | 484d | 2018-04-01 | -5d |
|
Scram
# 52395
|
2016-11-27 | 2016-11-28 | 2 | 9d | - | - |
|
Scheduled
|
2016-11-18 | 2016-11-18 | 1 | 5d | 2016-09-24 | +55d |
|
Scram
# 52356
|
2016-11-09 | 2016-11-13 | 5 | 4d | - | - |
|
Scheduled
|
2016-10-02 | 2016-11-05 | 35 | 491d | 2016-09-24 | +8d |
|
Scheduled
|
2015-05-27 | 2015-05-30 | 4 | 19d | 2015-03-29 | +59d |
|
Scheduled
|
2015-05-08 | 2015-05-08 | 1 | 4d | 2015-03-29 | +40d |
|
Scheduled
|
2015-03-30 | 2015-05-04 | 36 | 521d | 2015-03-29 | +1d |
|
Scheduled
|
2013-09-30 | 2013-10-25 | 26 | 109d | 2013-10-06 | -6d |
|
Scram
# 49106
|
2013-06-12 | 2013-06-13 | 2 | 318d | - | - |
|
Unscheduled
|
2012-07-27 | 2012-07-29 | 3 | 93d | - | - |
|
Scheduled
|
2012-04-02 | 2012-04-25 | 24 | 73d | 2012-03-25 | +8d |
|
Unscheduled
|
2012-01-17 | 2012-01-20 | 4 | 425d | - | - |
|
Scheduled
|
2010-10-11 | 2010-11-18 | 39 | 523d | 2010-10-02 | +9d |
|
Scheduled
|
2009-04-03 | 2009-05-06 | 34 | 134d | 2009-03-28 | +6d |
|
Unscheduled
|
2008-11-20 | 2008-11-20 | 1 | 114d | - | - |
|
Unscheduled
|
2008-07-23 | 2008-07-29 | 7 | 254d | - | - |
|
Scheduled
|
2007-09-29 | 2007-11-12 | 45 | 455d | 2007-09-29 | 0d |
|
Unscheduled
|
2006-07-01 | 2006-07-01 | 1 | 39d | - | - |
|
Scheduled
|
2006-04-08 | 2006-05-23 | 46 | 292d | 2006-04-07 | +1d |
|
Unscheduled
|
2005-06-19 | 2005-06-20 | 2 | 216d | - | - |
|
Scheduled
|
2004-10-02 | 2004-11-15 | 45 | 214d | 2004-10-01 | +1d |
|
Unscheduled
|
2004-03-02 | 2004-03-02 | 1 | 307d | - | - |
|
Scheduled
|
2003-03-29 | 2003-04-30 | 33 | 108d | 2003-03-29 | 0d |
|
Unscheduled
|
2002-12-11 | 2002-12-11 | 1 | 55d | - | - |
|
Unscheduled
|
2002-10-16 | 2002-10-17 | 2 | 165d | - | - |
|
Unscheduled
|
2002-05-04 | 2002-05-04 | 1 | 171d | - | - |
|
Scheduled
|
2001-10-06 | 2001-11-14 | 40 | 500d | 2001-10-06 | 0d |
|
Scheduled
|
2000-03-04 | 2000-05-24 | 82 | 281d | 2000-03-04 | 0d |
|
Unscheduled
|
1999-05-28 | 1999-05-28 | 1 | - | - | - |
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