Query
Southwestern
Type
Entity Briefing
Entity
Southwestern
Generated
2026-10-18T01:51:27.696Z

Briefing on Southwestern

Entity Briefing
Generated Oct 18, 2026·Dataset freshness not reported
658 MW
Capacity
Operating
Current status
1952
Operating since
6
Generators
13.5%
Capacity factor
779 GWh
Annual generation
Briefing/plantOperating

Southwestern is a 658 MW Natural Gas Fired Combustion Turbine asset in SPP (Southwest Power Pool), currently Operating.

Southwestern is reported in Oklahoma since 1952 under American Electric Power Company. Available operating and financial measures include 13.5% capacity factor and 779 GWh annual generation; $965/kW reported CapEx.

Location
Caddo, Oklahoma
Technology
Natural Gas Fired Combustion Turbine, Natural Gas Steam Turbine, Petroleum Liquids
Owner / parent
American Electric Power Company
Operator
Public Service Co of Oklahoma
Grid
SPP (Southwest Power Pool)
Plant ID
2964

What stands out

1

Southwestern is a 658 MW Natural Gas Fired Combustion Turbine asset in Oklahoma with status Operating.

2

Latest annual operating measures report 13.5% capacity factor and 779 GWh annual generation.

3

Available financial measures include $965/kW CapEx.

4

Latest linked story: “Southwest Power Pool, Inc.; AEP Oklahoma Transmission Company, Inc.; AEP Southwestern Transmission Company, Inc.; Deseret Generation & Transmission Co-Operative, Inc.; Empire District Electric Company; Evergy Kansas Central, Inc.; Evergy Kansas South, Inc.; Evergy Metro, Inc.; Evergy Missouri West, Inc.; GridLiance High Plains LLC; ITC Great Plains, LLC; Mountrail-Williams Electric Cooperative; NextEra Energy Transmission Southwest, LLC; NorthWestern Energy Public Service Corporation; Oklahoma Gas and Electric Company; Prairie Wind Transmission, LLC; Public Service Company of Oklahoma; Southwestern Electric Power Company; Southwestern Public Service Company; Transource Missouri, LLC; Transource Oklahoma, LLC; Tri-State Generation and Transmission Association, Inc.; Upper Missouri G. & T. Electric Cooperative, Inc.; Notice Establishing Answer Period” (Federal Register (FERC), 2026-08-07).

Market and operating context

ISO / market
SPP (Southwest Power Pool)
Balancing authority
Southwest Power Pool
NERC region
MRO
State rank
#13 of 34
National rank
#365 of 2,025

Why it matters

For this asset in SPP (Southwest Power Pool), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.