Current Reactor Status
Current power output from NRC daily reactor status reports. Shows the most recent power level as a percentage of rated capacity, along with a 14-day power history.
Ratings 55 votes
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)
66%
Current
86.1%
365-Day Avg
#80
of 94 plants
Min: 0%
Max: 100%
55 days <80%
Scram History 29 events since 2011
Performance Charts
Outage Duration Trend
?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)
?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
?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: 40.8 Yrs
Build Time: 10.8 Yrs
Lic. Remaining: 18.6 Yrs
Production & Power
Lifetime CF: 83.3%
Efficiency: 31.8%
Generated: 278.6 TWh
Reliability & Outages
Record Run: 742 Days
Refuelings: 15
Technical Specs
Reactor Type:
BWR
Containment:
BWR-MARK 3
NSS Supplier:
GE 6
Thermal Power:
4408 MWt
Net Capacity:
1401 MWe
Efficiency:
31.8%
Status:
Operating
Licensing
Docket #:
05000416
License #:
NPF-29
License Type:
OL-FP
Const. Permit:
1974-09-04
Operating Lic:
1984-11-01
Commercial Op:
1985-07-01
License Renewed:
2016-12-01
License Exp:
2044-11-01
Facility Map
32.0083, -91.0492
Location & Contact
![The entangled "spaghetti" mess of retrieval after a shattered blade](http://www.nukeworker.com/pictures/albums/userpics/10127/thumb_retrieval2.jpg "The entangled "spaghetti" mess of retrieval after a shattered blade
Keywords: Grand Gulf Nuclear Power Plant
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Breaker-to-Breaker Runs 1 run
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.
633
Best Run (days)
2010-05-28 → 2012-02-20
633
Avg Run (days)