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Palo Verde 1 - Plant Information & Status

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

Ratings 78 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
89.7%
365-Day Avg
#28
of 94 plants
Min: 0% Max: 100% 40 days <80%

Scram History 5 events since 2011

5
Total
3
Automatic
2
Manual
3
Avg Recovery (days)
Recent Events
2023-04-07 Auto EN Revision Imported Date: 5/4/2023 EN Revision Text: AUTOMA...
2018-02-14 Auto AUTOMATIC REACTOR TRIP DUE TO LOW DEPARTURE FROM NUCLEATE BO...
2016-09-06 Manual MANUAL REACTOR TRIP DUE TO STUCK OPEN PRESSURIZER MAIN SPRAY...
2011-11-21 Manual MANUAL REACTOR TRIP DUE TO CONTROL ELEMENT DEVIATION "The fo...
2011-08-05 Auto AUTOMATIC REACTOR TRIP DUE TO DROPPED CONTROL ELEMENT ASSEMB...

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: 40.2 Yrs
Build Time: 9.7 Yrs
Lic. Remaining: 19.2 Yrs
Production & Power
Lifetime CF: 88%
Efficiency: 32.9%
Generated: 275.4 TWh
Reliability & Outages
Record Run: 531 Days
Refuelings: 18

Ownership & Construction

Owner/Operator: Arizona Public Service
Architect Engineer: BECH
Constructor: BECH

Technical Specs

Reactor Type: PWR
Containment: PWR-DRYAMB
NSS Supplier: COMB CE80
Thermal Power: 3990 MWt
Net Capacity: 1311 MWe
Efficiency: 32.9%
Status: Operating

Licensing

Docket #: 05000528
License #: NPF-41
License Type: OL-FP
Const. Permit: 1976-05-25
Operating Lic: 1985-06-01
Commercial Op: 1986-01-28
License Renewed: 2011-04-21
License Exp: 2045-06-01

Facility Map

33.3878, -112.864

Location & Contact

Address:
5801 Wintersburg Road
Tonopaw, AZ 85354, USA
Get Directions
Phone: (623) 393-5000

Breaker-to-Breaker Runs 9 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.
529
Best Run (days)
2013-04-30 → 2014-10-11
502
Avg Run (days)
All Runs
2023-11-14 2025-03-29 501 days
2020-12-06 2022-04-09 489 days
2019-05-10 2020-10-10 519 days
2014-11-13 2016-04-09 513 days
2013-04-30 2014-10-11 529 days
2011-11-30 2013-03-30 486 days
2008-11-20 2010-03-08 473 days
2001-05-15 2002-09-28 501 days
1999-11-11 2001-03-31 506 days