Southwestern

32034 County Street 2605, Anadarko, OK 73005

Plant Summary Information

Southwestern is ranked #15 out of 37 natural gas power plants in Oklahoma in terms of total annual net electricity generation.

Southwestern is comprised of 6 generators and generated 100.7 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Southwestern
Utility Name	Public Service Co of Oklahoma
Location	Caddo County, OK
Initial Operation Date	July 1952
Last Update	Dec 2025
Annual Generation	453.5 GWh
Annual Consumption	6.3 M MMBtu
Ranked #1,501 out of 13,301 Power Plants Nationwide
Ranked #581 out of 2,218 Natural Gas Power Plants Nationwide
Ranked #60 out of 145 Oklahoma Power Plants
Ranked #15 out of 37 Oklahoma Natural Gas Power Plants
Fuel Types	Natural Gas

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Summary Information
Plant Name	Southwestern (2964)
Plant Address	32034 County Street 2605, Anadarko, OK 73005
Utility	Public Service Co of Oklahoma (15474)
Latitude, Longitude	35.1009, -98.3524
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	July 1952
Annual Generation	453.5 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	MRO
Balancing Authority	Southwest Power Pool (SWPP)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Municipality
Ash Impoundment	No
Transmission / Distribution Owner	Public Service Co of Oklahoma (15474) OK
Grid Voltage	138.00 kV
Energy Storage	No

Natural Gas Information
Pipeline Name	ENABLE OKLAHOMA INTRASTATE TRANS LLC

* Data obtained from the 2025 EIA 860 Report

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Startup Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Startup Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Status	Out of Service
First Operation Date	May 1966
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	No

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

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	86.5 MW
Nameplate Power Factor	0.85
Summer Capacity	76 MW
Winter Capacity	85 MW
Minimum Load	51 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	February 2008
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	1H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
Nameplate Capacity	86.5 MW
Nameplate Power Factor	0.85
Summer Capacity	76 MW
Winter Capacity	85 MW
Minimum Load	51 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	February 2008
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	1H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

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

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

Rank	Plant Name	Plant Location	Annual Generation
#571	South Belridge Cogeneration Facility	McKittrick, CA	477.5 GWh
#572	Lansing BWL REO Town Plant	Lansing, MI	477.2 GWh
#573	Roseton Generating Facility	Newsburgh, NY	673.0 GWh
#574	Thomas Fitzhugh	Ozark, AR	472.3 GWh
#575	Frontier	Oklahoma City, OK	471.3 GWh
#576	Blue Lake	Shakopee, MN	465.1 GWh
#577	Zion Energy Center	Zion, IL	468.2 GWh
#578	International Paper Riverdale Mill	Selma, AL	552.2 GWh
#579	Pensacola Florida Plant	Cantonment, FL	458.2 GWh
#580	Pearsall	Pearsall, TX	453.9 GWh
#582	Sheboygan Falls	Sheboygan, WI	452.5 GWh
#583	Nikiski Combined Cycle	Nikiski, AK	445.0 GWh
#584	Ferndale Generating Station	Ferndale, WA	444.4 GWh
#585	Horseshoe Lake	Harrah, OK	443.3 GWh
#586	Masspower	Indian Orchard, MA	441.7 GWh
#587	E W Brown	Harrodsburg, KY	1.9 TWh
#588	Mansfield Mill	Mansfield, LA	823.3 GWh
#589	Trinidad (TX)	Trinidad, TX	431.9 GWh
#590	Gary Works	Gary, IN	994.9 GWh
#591	C R Wing Cogen Plant	Big Spring, TX	427.5 GWh

Below are closest 20 power plants surrounding Southwestern.

Plant Name	Plant Location	Annual Generation	Distance
Anadarko Plant	Anadarko, OK	787.0 GWh	7 mi
Blue Canyon Windpower II	Carnegie, OK	565.7 GWh	21.6 mi
Blue Canyon Windpower V LLC	Carnegie, OK	244.7 GWh	20.1 mi
Blue Canyon Windpower VI LLC	Carnegie, OK	212.3 GWh	17.6 mi
Caddo Wind	Apache, OK	1.0 TWh	8.2 mi
Cana Gas Processing Plant	Calumet, OK	1.2 GWh	33.1 mi
Cyril	Cyril, OK	8.6 GWh	15.7 mi
Drift Sand Wind Project LLC	Rush Springs, OK	362.8 GWh	29.3 mi
Hinton	Hinton, OK	4.8 GWh	27.3 mi
Little Elk Wind Project LLC	Cordell, OK	318.6 GWh	32 mi
Minco Wind I, LLC	Minco, OK	325.5 GWh	24.6 mi
Minco Wind II, LLC	Minco, OK	323.1 GWh	22.2 mi
Minco Wind III, LLC	Minco, OK	449.3 GWh	21.1 mi
Minco Wind IV, LLC	Hinton, OK	587.9 GWh	19.9 mi
Pine Ridge	Apache, OK	5.2 GWh	8 mi
Redbed Plains Wind Farm	Tuttle, OK	427.7 GWh	31 mi
Tuttle	Tuttle, OK	2.8 GWh	30.8 mi
WFEC GenCo LLC	Anadarko, OK	83.7 GWh	7.2 mi
White Rock East Wind Project	Anadarko, OK	730.2 GWh	12.9 mi
White Rock West Wind Project	Anadarko, OK	400.4 GWh	10.7 mi