Owner profile

Southwestern Electric Power Co

Part of American Electric Power →

Southwestern Electric Power Co owns or operates 13 generating facilities commissioned between 1954 and 2024, with a combined nameplate capacity of 6.80 GW. The largest share of capacity is coal (44%), spread across 4 states.

Ownership reflects the utility or operator reported to EIA (Form EIA-860); equity ownership of individual facilities may differ.

13
Plants
6.80 GW
Total capacity
4
States
1.12 GW
Largest: Welsh

Capacity mix

Coal 44.2%Natural Gas 38.2%Wind 17.6%

By state

Arkansas3 · 1.52 GWLouisiana3 · 977 MWOklahoma1 · 999 MWTexas6 · 3.31 GW

Operating plants

PlantFuelStateOwnerCapacity
WelshCoalTexasSouthwestern Electric Power Co1.12 GW
Traverse Wind Project, LLCWindOklahomaSouthwestern Electric Power Co999 MW
WilkesNatural GasTexasSouthwestern Electric Power Co882 MW
J Lamar Stall UnitNatural GasLouisianaSouthwestern Electric Power Co624 MW
John W Turk Jr Power PlantCoalArkansasSouthwestern Electric Power Co609 MW
Flint CreekCoalArkansasSouthwestern Electric Power Co558 MW
Knox LeeNatural GasTexasSouthwestern Electric Power Co351 MW
Harry D Mattison Gas PlantNatural GasArkansasSouthwestern Electric Power Co349 MW
LiebermanNatural GasLouisianaSouthwestern Electric Power Co228 MW
Diversion Wind Energy LLCWindTexasSouthwestern Electric Power Co200.6 MW
Arsenal HillNatural GasLouisianaSouthwestern Electric Power Co125 MW
Retired plants (2)
PlantFuelStateOwnerCapacity
Pirkeyretired 2023CoalTexasSouthwestern Electric Power Co721 MW
Lone Starretired 2020Natural GasTexasSouthwestern Electric Power Co40 MW