Coolidge Generation Station

859 E. Randolph Rd., Coolidge, AZ 85228

Plant Summary Information

Coolidge Generation Station is ranked #24 out of 35 natural gas power plants in Arizona in terms of total annual net electricity generation.

Coolidge Generation Station is comprised of 12 generators and generated 17.1 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Coolidge Generation Station
Utility Name	Salt River Project
Location	Pinal County, AZ
Initial Operation Date	May 2011
Last Update	Dec 2025
Annual Generation	58.8 GWh
Annual Consumption	752.3 k MMBtu
Ranked #3,936 out of 12,613 Power Plants Nationwide
Ranked #1,033 out of 2,246 Natural Gas Power Plants Nationwide
Ranked #82 out of 169 Arizona Power Plants
Ranked #24 out of 35 Arizona Natural Gas Power Plants
Fuel Types	Natural Gas
Previous Operator	Coolidge Power LLC (2013 to 2018) Salt River Project (2019 to 2024)

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Monthly Net Generation for Coolidge Generation Station

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Monthly Plant Fuel Consumption for Coolidge Generation Station

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Coolidge Generation Station Details

Summary Information
Plant Name	Coolidge Generation Station (56948)
Plant Address	859 E. Randolph Rd., Coolidge, AZ 85228
Utility	Salt River Project (16572)
Latitude, Longitude	32.9174, -111.50333
Generation Dates on File	May 2011 to Dec 2025
Initial Operation Date	May 2011
Annual Generation	58.8 GWh
Fuel Types	Natural Gas

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Regulated
NERC Region	WECC
Balancing Authority	Salt River Project (SRP)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Wells
Ash Impoundment	No
Transmission / Distribution Owner	Salt River Project (16572) AZ
Grid Voltage	230.00 kV
Energy Storage	No

Natural Gas Information
Pipeline Name	TRANSWESTERN PIPELINE COMPANY EL PASO NATURAL GAS COMPANY LLC
Natural Gas Storage	No

* Data obtained from the 2024 EIA 860 Report

Generator 1 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 10 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 11 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 12 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 2 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 3 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 4 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 5 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 6 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 7 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 8 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 9 Details Operating May 2011

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.4 MW
Winter Capacity	47.7 MW
Minimum Load	22 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2011

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Coolidge Generation Station Plant Owners

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Natural Gas.

Rank	Plant Name	Plant Location	Annual Generation
#1023	Clayville	Vineland, NJ	62.4 GWh
#1024	MRP Elgin LLC	Elgin, IL	62.2 GWh
#1025	Grant Town Power Plant	Grant Town, WV	614.8 GWh
#1026	CityCenter Central Plant Cogen Units	Las Vegas, NV	61.2 GWh
#1027	Tres Port Power, LLC	Victoria, TX	60.8 GWh
#1028	Indeck Silver Springs Energy Center	Silver Springs, NY	60.5 GWh
#1029	Archbald Power Station	Archbald, PA	65.5 GWh
#1030	Cumberland (NJ)	Millville, NJ	59.9 GWh
#1031	Cymric 36W Cogen	McKittrick, CA	59.2 GWh
#1032	DTE Atlantic, LLC	Atlantic City, NJ	59.1 GWh
#1034	Osawatomie	Miami, KS	58.8 GWh
#1035	Little Dixie	Centrahoma, OK	58.3 GWh
#1036	International Paper Riegelwood Mill	Riegelwood, NC	352.3 GWh
#1037	Cimarron River	Liberal, KS	57.7 GWh
#1038	Four Corners	Fruitland, NM	8.2 TWh
#1039	Pine Bluff Mill	Pine Bluff, AR	289.0 GWh
#1040	Georgia-Pacific Wauna Mill	Clatskanie, OR	168.4 GWh
#1041	Crete Energy Venture LLC	Crete, IL	56.5 GWh
#1042	R M Heskett	Mandan, ND	56.2 GWh
#1043	Phelps Dodge Refining	El Paso, TX	56.1 GWh

Nearby Power Plants

Below are closest 20 power plants surrounding Coolidge Generation Station.

Plant Name	Plant Location	Annual Generation	Distance
Banner Solar Ironwood	Queen Creek, AZ	3.8 GWh	20.8 mi
Bonnybrooke PV	Florence, AZ	121.2 GWh	13.3 mi
Box Canyon (AZ)	Florence, AZ	506.9 GWh	18.5 mi
Brittlebush Solar	Coolidge, AZ	562.1 GWh	0.9 mi
Central Line Solar, LLC	Coolidge, AZ	269.4 GWh	6.9 mi
Copper Crossing Energy and Research Cent	Florence, AZ	5.1 GWh	16.5 mi
Desert Basin	Casa Grande, AZ	2.1 TWh	16.6 mi
East Line Solar	Coolidge, AZ	254.6 GWh	6 mi
Eleven Mile Solar Center	Coolidge, AZ	792.6 GWh	6.5 mi
Pinal Central Energy Center Hybrid	Casa Grande, AZ	55.9 GWh	4 mi
Poseidon Solar, LLC	Globe, AZ	50.2 GWh	16.8 mi
Queen Creek Solar Farm	Queen Creek, AZ	40.7 GWh	25 mi
Saint Solar	Coolidge, AZ	284.1 GWh	3.5 mi
Sandstone Solar	Florence, AZ	117.2 GWh	9.2 mi
Storey Solar and Storage	Coolidge, AZ	300.8 GWh	2 mi
Sundance	Casa Grande, AZ	313.1 GWh	5.1 mi
Union HS at Casa Grande	Casa Grande, AZ	2.9 GWh	13.7 mi
Vista Grande HS at Casa Grande	Casa Grande, AZ	2.8 GWh	12.3 mi
Walmart Casa Grande	Casa Grande, AZ	1.8 GWh	16 mi
West Line Solar, LLC	City of Eloy, AZ	258.6 GWh	11.6 mi