REACTORS · PJM
Byron 2
PWR Constellation Energy IL · Byron
0.0%
OFFLINE · 1,136 MW offline
Constellation Energy1,136 MW mapped capacityPWR
Right NowNext OutageOperating TimelineOutage RecordIf It TripsBreaker-to-BreakerFull OutagesEventsPlant Record
Right Now
0.0%
1,136
21
73.4%
Next Outage INDIVIDUAL
See when this unit comes off the grid next
Projected start date · duration · probability band · confidence on every date.
Cycle evidenceObserved run length and prior refuel spacingWindowProbability range rather than an operator scheduleSource disciplineCurrent status remains observed NRC data
Operational Excellence INDIVIDUAL
Compare this reactor with its operating peers
UnlockOperating record · full-outage exposure · breaker-to-breaker streaks.
Operating recordLong-run observed generation performanceFull outagesEpisode counts and duration contextRun lengthBreaker-to-breaker evidence from stored history
Operating Timeline · power %
Outage Record
| Type | Start | End | Duration | Min power | Max MW offline |
|---|---|---|---|---|---|
| OFFLINE | 2026-09-28 | Open | 21 d | 0% | 1,136 |
| DERATE | 2026-09-12 | 2026-09-28 | 16 d | 72.0% | 318 |
Episode rows are derived from stored NRC power-state transitions; missing publication days are not interpolated.
If It Trips · derived MW offline PRO
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Breaker-to-Breaker Streak INDIVIDUAL
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Full Outages INDIVIDUAL
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NRC Events 7 DAYS
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Plant Record NRC and mapped fleet reference
1987-08-02
2046-11-06
2015-11-19
WEST 4LP
3645 MWt
05000455
S&L
CWE
Plant-reference fields are shown only when a mapped NRC or fleet record is available; unknown fields display —.
NRC docket and licence fields retain source values.Engineering-party fields are never inferred when absent.