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Arkansas Nuclear 1 - Plant Information & Status

Technical specifications, contact data, ratings, and licensing history for the Arkansas Nuclear facility.

Ratings 55 votes

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Community ratings from NukeWorker members. Vote to share your experience working at this facility. Results show the breakdown of Above Average, Average, and Below Average ratings.

Capacity Factor (365-Day)

100%
Current
87.7%
365-Day Avg
#75
of 94 plants
Min: 0% Max: 100% 53 days <80%

Scram History 9 events since 2011

9
Total
5
Automatic
4
Manual
10.6
Avg Recovery (days)
Recent Events
2025-09-23 Auto AUTOMATIC REACTOR TRIP The following information was provide...
2023-02-13 Auto EN Revision Imported Date: 2/15/2023 EN Revision Text: AUTOM...
2021-11-28 Auto EN Revision Imported Date: 12/29/2021 EN Revision Text: AUTO...
2021-03-13 Manual EN Revision Imported Date: 4/13/2021 EN Revision Text: MANUA...
2018-12-17 Auto AUTOMATIC REACTOR TRIP - LOSS OF NON-VITAL BUS"On December 1...
2018-06-15 Manual MANUAL REACTOR TRIP DURING STARTUP "At 1121 CDT on June 16, ...
2018-05-15 Auto AUTOMATIC REACTOR TRIP DUE TO LOSS OF MAIN FEEDWATER PUMP"At...
2017-04-25 Manual UNIT 1 AUTOMATIC REACTOR SCRAM DUE TO PARTIAL LOSS OF OFFSIT...
+1 more events

Performance Charts

Outage Duration Trend

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Scheduled refueling outage durations over time. Green bars are below average, yellow near average, red above. Dashed line shows the plant's historical average. Shorter outages mean better execution.

Power History (12-Month)

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Daily power output as a percentage of rated capacity over the past 365 days. Green segments indicate full power (90%+), yellow shows reduced output, and red indicates significant power reductions or shutdowns.

Outage Timeline

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Visual timeline of all recorded outages. Blue bars are scheduled refueling outages, red bars are forced/unplanned outages. Width represents outage duration. Hover for details.

Facility Statistics

Lifecycle & Tenure
Operating Age: 51.3 Yrs
Build Time: 6 Yrs
Lic. Remaining: 8.1 Yrs
Production & Power
Lifetime CF: 88.3%
Efficiency: 32.4%
Generated: 175.6 TWh
Reliability & Outages
Record Run: 573 Days
Refuelings: 18

Ownership & Construction

Owner/Operator: Entergy
Architect Engineer: BECH
Constructor: BECH

Technical Specs

Reactor Type: PWR
Containment: PWR-DRYAMB
NSS Supplier: B&W LLP
Thermal Power: 2568 MWt
Net Capacity: 833 MWe
Efficiency: 32.4%
Status: Operating

Licensing

Docket #: 05000313
License #: DPR-51
License Type: OL-FP
Const. Permit: 1968-12-06
Operating Lic: 1974-05-21
Commercial Op: 1974-12-19
License Renewed: 2001-06-20
License Exp: 2034-05-20

Facility Map

35.3097, -93.2343

Location & Contact

Address:
1448 State Route 333
Russellville, AR 72802, USA
Get Directions
Phone: (501) 858-5000

Breaker-to-Breaker Runs 6 runs

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Breaker-to-breaker runs measure continuous operation between refueling outages (470+ days). An active streak means the unit has been running continuously since the last refueling. Longer runs indicate better reliability.
538
Best Run (days)
2010-04-27 → 2011-10-17
506
Avg Run (days)
All Runs
2013-08-18 2015-01-26 526 days
2011-11-23 2013-03-25 488 days
2010-04-27 2011-10-17 538 days
2007-05-14 2008-10-27 532 days
2005-12-31 2007-04-23 478 days
2004-06-20 2005-10-05 472 days