Oyster Creek - Status & History

Comprehensive reactor performance metrics, cycle analysis, and historical outage data.
Data refreshed 1.1h ago Rx Status: Mar 18, 2019 (M-F)

Decommissioned

Permanently shut down on 2018-09-17. Outage statistics below reflect only the operating period. The final shutdown is not counted as an outage.
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This unit is permanently shut down (shutdown date: 2018-09-17).
Shut Down
2018-09-17
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Longest recorded period of continuous operation between outages (2015-05-12 to 2016-04-25).
349
Record Run
days
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Breaker-to-Breaker runs — continuous operation exceeding the cycle-adjusted threshold (624 days for this 24-month cycle unit) with no trips to 0% power.
0
B2B Runs
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Lifetime capacity factor: average power level across all recorded days (100% = always at full power).
88.7%
Capacity Factor
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Total number of scheduled refueling outages detected in the historical data. D&D shutdown period excluded.
9
Outages
since 2000
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Average time from first power generation (>0%) to sustained full power (≥95% for 2+ days) across the last 3 scheduled outages. Click to compare against the fleet on the Operator Efficiency Leaderboard.
4
Avg Startup
days (last 3)
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Average fuel utilization — percent of the designed fuel cycle that this unit consumes before refueling, derived from the historical burn-down trajectory. Higher = more efficient operator (refuels with less margin remaining; closer to coastdown). Computed as 100% minus the unit's average refuel-point fuel %, using the last 3 years where available, otherwise lifetime average. Click to compare against the fleet on the Operator Efficiency Leaderboard.
95.9%
Fuel Utilization
lifetime avg
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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

Oyster Creek has 50 outages plotted here, averaging 9 days each. The most recent, in Jul 2017, was a unplanned outage lasting 2 days.
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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

Between refueling outages, Oyster Creek runs about 727 days, or roughly 24 months, per cycle. That average comes from 8 completed cycles, the most recent lasting 735 days.
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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

After a refueling outage, Oyster Creek takes about 4 days to climb from first power back to full power. That average is drawn from 9 startups on record, and the most recent took 3 days.
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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

Over its operating life, Oyster Creek has run at about 88.7% of its rated capacity. Across the last 12 reported months it averaged 41.5%. On the chart, flat stretches near the top are full-power running and drops to zero are outages.
This table logs every recorded outage for Oyster Creek, 51 in all since 2000. Of those, 10 were scheduled refueling outages and 41 were unplanned or forced. The typical outage lasted about 12 days. Where the Scheduled column shows (Model), the date is a NukeWorker projection because the utility had not published one.
Scheduled SGR/Major
2018-09-18 Decommissioned 1 (D&D) 440d 2018-09-17 +1d
Scram # 52839
2017-07-04 2017-07-05 2 198d - -
Unscheduled
2016-12-14 2016-12-18 5 21d - -
Scram # 52381
2016-11-20 2016-11-23 4 40d - -
Scheduled
2016-09-19 2016-10-11 23 131d 2016-09-19 0d
Unscheduled
2016-04-25 2016-05-11 17 349d - -
Scram # 51055
2015-05-08 2015-05-12 5 43d - -
Scram # 50916
2015-03-23 2015-03-26 4 161d - -
Scheduled
2014-09-15 2014-10-13 29 63d 2014-09-15 0d
Scram # 50270
2014-07-11 2014-07-14 4 2d - -
Scram # 50270
2014-07-09 2014-07-09 1 204d - -
Scram # 49633
2013-12-14 2013-12-17 4 23d - -
Unscheduled
2013-11-18 2013-11-21 4 42d - -
Scram # 49414
2013-10-07 2013-10-07 1 3d - -
Scram # 49414
2013-10-04 2013-10-04 1 2d - -
Scram # 49404
2013-10-01 2013-10-02 2 306d - -
Scheduled
2012-10-22 2012-11-29 39 87d 2012-10-22 0d
Scram # 48125
2012-07-23 2012-07-27 5 330d - -
Unscheduled
2011-08-28 2011-08-28 1 114d - -
Unscheduled
2011-05-01 2011-05-06 6 128d - -
Unscheduled
2010-12-24 2010-12-24 1 2d - -
Unscheduled
2010-12-21 2010-12-22 2 21d - -
Scheduled
2010-11-01 2010-11-30 30 184d 2010-11-01 0d
Unscheduled
2010-04-29 2010-05-01 3 287d - -
Unscheduled
2009-07-12 2009-07-16 5 71d - -
Unscheduled
2009-04-26 2009-05-02 7 82d - -
Unscheduled
2009-02-02 2009-02-03 2 59d - -
Unscheduled
2008-11-29 2008-12-05 7 11d - -
Scheduled
2008-10-25 2008-11-18 25 180d 2008-10-24 +1d
Unscheduled
2008-04-26 2008-04-28 3 128d - -
Unscheduled
2007-12-20 2007-12-20 1 152d - -
Unscheduled
2007-07-18 2007-07-21 4 75d - -
Unscheduled
2007-04-29 2007-05-04 6 168d - -
Scheduled
2006-10-16 2006-11-12 28 158d 2006-10-15 +1d
Unscheduled
2006-05-06 2006-05-11 6 90d - -
Unscheduled
2006-01-29 2006-02-05 8 240d - -
Unscheduled
2005-06-02 2005-06-03 2 192d - -
Scheduled
2004-11-03 2004-11-22 20 43d 2004-11-02 +1d
Unscheduled
2004-09-15 2004-09-21 7 106d - -
Unscheduled
2004-05-27 2004-06-01 6 277d - -
Unscheduled
2003-08-22 2003-08-24 3 7d - -
Unscheduled
2003-08-15 2003-08-15 1 81d - -
Unscheduled
2003-05-21 2003-05-26 6 207d - -
Scheduled
2002-10-05 2002-10-26 22 321d 2002-10-05 0d
Unscheduled
2001-11-12 2001-11-18 7 179d - -
Unscheduled
2001-05-15 2001-05-17 3 179d - -
Scheduled
2000-10-14 2000-11-17 35 56d 2000-10-14 0d
Unscheduled
2000-08-16 2000-08-19 4 153d - -
Unscheduled
2000-03-06 2000-03-16 11 2d - -
Unscheduled
2000-03-02 2000-03-04 3 30d - -
Unscheduled
2000-01-22 2000-02-01 11 - - -
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