How many power plants does Southern Power operate?

EIA-860M lists 53 operating plants against “Southern Power Co” for 2026-07, totalling 14 GW of nameplate capacity in 14 states.

Is Southern Power the owner of these plants?

EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.

Why are affiliates listed separately?

Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.

Southern Power plants

Every generating plant EIA-860M files against Southern Power for 2026-07: 53 plants, 14 GW of nameplate capacity, across 14 states and 3 energy sources.

EIA files this entity as “Southern Power Co”.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 53
Nameplate capacity: 14 GW
States: 14; AL, CA, GA, KS, ME, NC, NM, NV, OK, SD, TX, WA, WV, WY
Energy sources: 3

Southern Power plants by energy source

Natural gas7 plants · 8,087 MW
Solar31 plants · 2,899 MW
Wind15 plants · 2,532 MW

Full list of Southern Power plants

Power plants operated by Southern Power Co

H Allen Franklin Combined CycleNatural Gas Fired Combined Cycle	Southern Power Co	Lee	1,995.7	9	2002	Operating
E B Harris Electric Generating PlantNatural Gas Fired Combined Cycle	Southern Power Co	Autauga	1,304	6	2003	Operating
Wansley Combined CycleNatural Gas Fired Combined Cycle	Southern Power Co	Heard	1,239	6	2002	Operating
Rowan2 technologies	Southern Power Co	Rowan	1,192	6	2001	Operating
DahlbergNatural Gas Fired Combustion Turbine	Southern Power Co	Jackson	919	10	2000	Operating
Cleveland Cnty Generating FacilityNatural Gas Fired Combustion Turbine	Southern Power Co	Cleveland	736	4	2012	Operating
Edward L. Addison Generating PlantNatural Gas Fired Combustion Turbine	Southern Power Co	Upson	701.2	4	2000	Operating
Deuel Harvest Wind Energy LLCOnshore Wind Turbine	Southern Power Co	Deuel	300	1	2021	Operating
Stateline SolarSolar Photovoltaic	Southern Power Co	San Bernardino	299.5	7	2015	Operating
Kay Wind, LLCOnshore Wind Turbine	Southern Power Co	Kay	299	1	2015	Operating
RE Tranquillity2 technologies	Southern Power Co	Fresno	277.3	3	2016	Operating
Bethel Wind Farm LLCOnshore Wind Turbine	Southern Power Co	Castro	276	1	2017	Operating
RE Garland2 technologies	Southern Power Co	Kern	273.1	3	2016	Operating
Wake Wind Energy CenterOnshore Wind Turbine	Southern Power Co	Crosby	257.3	1	2016	Operating
Reading Wind ProjectOnshore Wind Turbine	Southern Power Co	Lyon	200.1	1	2020	Operating
Millers Branch SolarSolar Photovoltaic	Southern Power Co	Haskell	200	1	2026	Operating
Salt Fork Wind Project, LLCOnshore Wind Turbine	Southern Power Co	Donley	174	1	2016	Operating
Solar Gen 2 Solar FacilitySolar Photovoltaic	Southern Power Co	Imperial	163.2	3	2014	Operating
RE RoserockSolar Photovoltaic	Southern Power Co	Pecos	160	1	2016	Operating
Grant Wind, LLCOnshore Wind Turbine	Southern Power Co	Grant	151.8	1	2016	Operating
South Cheyenne SolarSolar Photovoltaic	Southern Power Co	Laramie	150	1	2024	Operating
Cactus Flats Wind Energy ProjectOnshore Wind Turbine	Southern Power Co	Concho	148.4	1	2018	Operating
Taylor County SolarSolar Photovoltaic	Southern Power Co	Taylor	148	1	2016	Operating
Campo Verde SolarSolar Photovoltaic	Southern Power Co	Imperial	147.4	1	2013	Operating
Grant Plains Wind, LLCOnshore Wind Turbine	Southern Power Co	Grant	147.2	1	2016	Operating
Skookumchuck Wind FacilityOnshore Wind Turbine	Southern Power Co	Thurston	136	1	2020	Operating
Tyler Bluff Wind Project, LLCOnshore Wind Turbine	Southern Power Co	Cooke	125.6	1	2016	Operating
East Pecos SolarSolar Photovoltaic	Southern Power Co	Pecos	118.5	1	2017	Operating
Glass Sands Wind FacilityOnshore Wind Turbine	Southern Power Co	Murray	117	1	2021	Operating
Butler Solar Project 103Solar Photovoltaic	Southern Power Co	Taylor	104	1	2016	Operating
Henrietta Solar ProjectSolar Photovoltaic	Southern Power Co	Kings	102	1	2016	Operating
Lamesa SolarSolar Photovoltaic	Southern Power Co	Dawson	102	1	2017	Operating
Boulder Solar Power, LLCSolar Photovoltaic	Southern Power Co	Clark	100	1	2016	Operating
Wildhorse Mountain Wind FacilityOnshore Wind Turbine	Southern Power Co	Pushmataha	100	1	2019	Operating
Decatur Parkway Solar Project, LLCSolar Photovoltaic	Southern Power Co	Decatur	80	1	2015	Operating
Rutherford FarmSolar Photovoltaic	Southern Power Co	Rutherford	74.8	1	2016	Operating
North Star SolarSolar Photovoltaic	Southern Power Co	Fresno	61.6	1	2015	Operating
Beech Ridge II Wind Energy CenterOnshore Wind Turbine	Southern Power Co	Greenbrier	56.2	1	2020	Operating
Macho SpringsSolar Photovoltaic	Southern Power Co	Luna	55	1	2014	Operating
Passadumkeag Windpark LLCOnshore Wind Turbine	Southern Power Co	Penobscot	42.9	1	2016	Operating
Lost Hills/BlackwellSolar Photovoltaic	Southern Power Co	Kern	32	2	2015	Operating
Cimarron Solar FacilitySolar Photovoltaic	Southern Power Co	Colfax	30.6	1	2010	Operating
Pawpaw Solar PlantSolar Photovoltaic	Southern Power Co	Taylor	30.5	1	2016	Operating
Spectrum Solar PV Power ProjectSolar Photovoltaic	Southern Power Co	Clark	30.2	1	2013	Operating
Butler Solar Farm 20Solar Photovoltaic	Southern Power Co	Taylor	22	1	2016	Operating
RE Garland ASolar Photovoltaic	Southern Power Co	Kern	20.2	1	2016	Operating
Adobe SolarSolar Photovoltaic	Southern Power Co	KERN	20	1	2014	Operating
Calipatria Solar FarmSolar Photovoltaic	Southern Power Co	Imperial	20	1	2016	Operating
Gaskell West 1 Solar FacilitySolar Photovoltaic	Southern Power Co	Kern	20	1	2018	Operating
Decatur County Solar ProjectSolar Photovoltaic	Southern Power Co	Decatur	20	1	2015	Operating
Apex Solar PV Power ProjectSolar Photovoltaic	Southern Power Co	Clark	20	1	2012	Operating
Morelos del SolSolar Photovoltaic	Southern Power Co	Kern	15	1	2015	Operating
Granville Solar PV Power ProjectSolar Photovoltaic	Southern Power Co	Granville	2.5	1	2012	Operating

Southern Power: FAQ

How many power plants does Southern Power operate?: EIA-860M lists 53 operating plants against “Southern Power Co” for 2026-07, totalling 14 GW of nameplate capacity in 14 states.
Is Southern Power the owner of these plants?: EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
Why are affiliates listed separately?: Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.