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Comanche Peak 1 - Plant Information & Status

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

Ratings 52 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
92.4%
365-Day Avg
#27
of 94 plants
Min: 0% Max: 100% 28 days <80%

Scram History 5 events since 2011

5
Total
3
Automatic
2
Manual
3.2
Avg Recovery (days)
Recent Events
2025-09-23 Manual MANUAL REACTOR TRIP The following information was provided b...
2023-06-15 Auto AUTOMATIC REACTOR TRIP DUE TO LO-LO STEAM GENERATOR LEVEL Th...
2022-09-04 Auto AUTOMATIC REACTOR TRIP DUE TO TURBINE TRIP The following inf...
2014-01-17 Auto REACTOR TRIP DUE TO TURBINE TRIP "At 0840 [CST], Comanche Pe...
2012-11-01 Manual MANUAL REACTOR TRIP DUE TO HIGH REACTOR COOLANT PUMP MOTOR B...

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: 35.6 Yrs
Build Time: 15.6 Yrs
Lic. Remaining: 23.8 Yrs
Production & Power
Lifetime CF: 92.6%
Efficiency: 33.4%
Generated: 266.3 TWh
Reliability & Outages
Record Run: 535 Days
Refuelings: 18

Ownership & Construction

Owner/Operator: Vistra Corp.
Architect Engineer: G&H
Constructor: BRRT

Technical Specs

Reactor Type: PWR
Containment: PWR-DRYAMB
NSS Supplier: WEST 4LP
Thermal Power: 3612 MWt
Net Capacity: 1205 MWe
Efficiency: 33.4%
Status: Operating

Licensing

Docket #: 05000445
License #: NPF-87
License Type: OL-FP
Const. Permit: 1974-12-19
Operating Lic: 1990-04-17
Commercial Op: 1990-08-13
License Renewed: N/A
License Exp: 2050-02-08

Facility Map

32.2985, -97.7882

Location & Contact

Address:
Rural Route 1
Glen Rose, TX 76043, USA
Get Directions
Phone: (817) 897-8881
Website: http://txu.com

Breaker-to-Breaker Runs 8 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.
531
Best Run (days)
2017-11-07 → 2019-04-22
509
Avg Run (days)
All Runs
2020-11-09 2022-04-11 518 days
2019-05-28 2020-10-11 502 days
2017-11-07 2019-04-22 531 days
2016-06-01 2017-10-09 495 days
2014-11-28 2016-05-02 521 days
2005-11-09 2007-02-25 473 days
2004-05-05 2005-10-09 522 days
1999-10-30 2001-03-25 512 days