Cholla

4801 Cholla Lake Road, Joseph City, AZ 86032

Plant Summary Information

Cholla is ranked #21 out of 159 power plants in Arizona in terms of total annual net electricity generation.

Cholla is comprised of 2 generators and generated 391.8 GWh during the 3-month period between December 2024 to March 2025.

Plant NameCholla
Utility NameArizona Public Service Co
LocationNavajo County, AZ
Initial Operation DateMay 1962
Last Update Mar 2025
Annual Generation 1.3 TWh
Annual Consumption 14.3 M MMBtu
Ranked #630 out of 11,623 Power Plants Nationwide
Ranked #69 out of 129 Subbituminous Coal Power Plants Nationwide
Ranked #21 out of 159 Arizona Power Plants
Ranked #3 out of 4 Arizona Subbituminous Coal Power Plants
Fuel Types Subbituminous Coal : 99.9%

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Monthly Net Generation for Cholla

Cholla Details

Summary Information
Plant NameCholla (113)
Plant Address4801 Cholla Lake Road, Joseph City, AZ 86032
UtilityArizona Public Service Co (803)
Latitude, Longitude34.9394, -110.3033
Generation Dates on FileJan 2001 to Mar 2025
Initial Operation DateMay 1962
Annual Generation 1.3 TWh
Fuel Types Subbituminous Coal : 99.9%
 
Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration StatusNo
FERC Small Power Producer StatusNo
FERC Exempt Wholesale Generator StatusNo
Regulatory Information
Regulatory StatusRegulated
NERC RegionWECC
Balancing AuthorityArizona Public Service Company (AZPS)
NAICS CodeUtilities (22)
Sector Electric Utility (1)
Water SourceLake Wells
Ash Impoundment Yes   Not Lined   Operating
Transmission / Distribution OwnerArizona Public Service Co (803) AZ
Grid Voltage 500.00 kV
Energy StorageNo
 
Natural Gas Information
Pipeline Name EL PASO NATURAL GAS COMPANY LLC
Natural Gas StorageNo

Generator 1 Details Operating May 1962

TechnologyConventional Steam Coal
Prime MoverSteam Turbine
OwnershipSingle Owner
Nameplate Capacity113.6 MW
Nameplate Power Factor0.85
Summer Capacity112 MW
Winter Capacity112 MW
Minimum Load30 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 1962
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceSubbituminous Coal / Natural Gas
Startup SourceNatural Gas
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full LoadOVER
Pulverized Coal TechnologyYes
Subcritical TechnologyYes
Other Planned ModificationsNo
Multiple FuelsYes
Cofire FuelsNo

Generator 3 Details Operating May 1980

TechnologyConventional Steam Coal
Prime MoverSteam Turbine
OwnershipSingle Owner
Nameplate Capacity312.3 MW
Nameplate Power Factor0.94
Summer Capacity271 MW
Winter Capacity271 MW
Minimum Load75 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 1980
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceSubbituminous Coal / Distillate Fuel Oil / Bituminous Coal
Startup SourceDistillate Fuel Oil
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full LoadOVER
Pulverized Coal TechnologyYes
Subcritical TechnologyYes
Multiple FuelsYes
Cofire FuelsNo

Cholla Plant Owners

Owner NameAddressGeneratorOwnership
PacifiCorp825 NE Multnomah, Suite 600, Portland, OR 97232Generator 4100.00%

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Subbituminous Coal.

RankPlant NamePlant LocationAnnual Generation
#59OttumwaOttumwa, IA1.7 TWh
#60HarringtonAmarillo, TX2.3 TWh
#61Big StoneBig Stone City, SD1.6 TWh
#62HugoFort Towson, OK1.6 TWh
#63Sikeston Power StationSikeston, MO1.5 TWh
#64Brame Energy CenterLena, LA2.5 TWh
#65Victor J Daniel JrEscatawpa, MS6.2 TWh
#66NaughtonKemmerer, WY2.5 TWh
#67HolcombHolcomb, KS1.3 TWh
#68NortheasternOologah, OK4.2 TWh
#70RawhideWellington, CO1.4 TWh
#71R S NelsonWestlake, LA1.3 TWh
#72TS Power PlantBattle Mountain, NV1.5 TWh
#73Whelan Energy CenterHastings, NE1.2 TWh
#74Ray D NixonFountain, CO1.2 TWh
#75Big Cajun 2New Roads, LA1.9 TWh
#76George Neal NorthSergeant Bluff, IA972.9 GWh
#77John P MadgettAlma, WI943.5 GWh
#78Nearman CreekKansas, KS1.1 TWh
#79Trimble CountyBedford, KY9.3 TWh

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