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Limerick 2 - Plant Information & Status

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

Ratings 38 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
93.2%
365-Day Avg
#63
of 94 plants
Min: 0% Max: 100% 24 days <80%

Scram History 5 events since 2011

5
Total
2
Automatic
3
Manual
4
Avg Recovery (days)
Recent Events
2019-06-03 Manual MANUAL SCRAM DURING RAPID PLANT SHUTDOWN"At 0145 EDT, on 6/4...
2016-05-31 Manual MANUAL REACTOR SCRAM DUE TO UNEXPECTED CORE FLOW CHANGE "Lim...
2015-12-18 Auto AUTOMATIC REACTOR SCRAM DUE TO LOW REACTOR WATER LEVEL "At 0...
2011-05-28 Auto AUTOMATIC REACTOR TRIP DUE TO LOW PRESSURE IN EHC SYSTEM "Li...
2011-02-24 Manual MANUAL SCRAM DUE TO RECIRCULATION PUMP TRIP "Limerick Unit 2...

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: 36.2 Yrs
Build Time: 15.6 Yrs
Lic. Remaining: 23.2 Yrs
Production & Power
Lifetime CF: 94.2%
Efficiency: 31.9%
Generated: 252.2 TWh
Reliability & Outages
Record Run: 726 Days
Refuelings: 14

Ownership & Construction

Owner/Operator: Constellation Energy
Architect Engineer: BECH
Constructor: BECH

Technical Specs

Reactor Type: BWR
Containment: BWR-MARK 2
NSS Supplier: GE 4
Thermal Power: 3515 MWt
Net Capacity: 1122 MWe
Efficiency: 31.9%
Status: Operating

Licensing

Docket #: 05000353
License #: NPF-85
License Type: OL-FP
Const. Permit: 1974-06-19
Operating Lic: 1989-08-25
Commercial Op: 1990-01-08
License Renewed: 2014-10-20
License Exp: 2049-06-22

Facility Map

40.2238, -75.5869

Location & Contact

Address:
3146 Sanatoga Rd
Pottstown, PA 19464, USA
Get Directions
Phone: (610) 718-1200

Breaker-to-Breaker Runs 3 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.
709
Best Run (days)
2023-05-20 → 2025-04-28
647
Avg Run (days)
All Runs
2023-05-20 2025-04-28 709 days
2019-06-08 2021-04-26 688 days
2017-10-19 2019-04-15 543 days