Power plants in the Southwestern Power Administration balancing area

The Southwestern Power Administration balancing area takes in 29 power plants with 2,601 MW of nameplate capacity, the 36th-largest of the 40 areas covered here. Its plants sit in three states, with Oklahoma holding 37% of the capacity. Hydroelectric makes up 58% of the mix, and the largest plant is Bull Shoals (340 MW). Since 2020, 102 MW has come online here, 100% of it solar.

Hydroelectric1,512 MW58%
Wind499 MW19%
Coal261 MW10%
Pumped-storage hydro161 MW6.2%
Solar120 MW4.6%
Natural gas32.8 MW1.3%
Oil and petroleum15 MW0.6%

Capacity by decade it came online

CoalNatural gasOil and petroleumHydroelectricPumped-storage hydroWindSolar

Above the line: capacity operating in 2025. Below: capacity retired at plants that still run.

The 25 largest plants in the area

Rank	Plant	State	Runs on	Capacity	First unit
1	Bull Shoals	Arkansas	Hydroelectric	340 MW	1952
2	Kay Wind, LLC	Oklahoma	Wind	299 MW	2015
3	Sikeston Power Station	Missouri	Coal	261 MW	1981
4	Frontier Windpower	Oklahoma	Wind	200 MW	2016
5	Table Rock	Missouri	Hydroelectric	200 MW	1959
6	Harry Truman	Missouri	Pumped-storage hydro	161 MW	1979
7	Dardanelle	Arkansas	Hydroelectric	161 MW	1965
8	Beaver Dam (AR)	Arkansas	Hydroelectric	112 MW	1965
9	Robert S Kerr	Oklahoma	Hydroelectric	110 MW	1971
10	Kiowa County Solar Project	Oklahoma	Solar	100 MW	2025
11	Ozark	Arkansas	Hydroelectric	100 MW	1972
12	Greers Ferry Lake	Arkansas	Hydroelectric	96 MW	1964
13	Eufaula Dam	Oklahoma	Hydroelectric	90 MW	1964
14	Norfork	Arkansas	Hydroelectric	80.4 MW	1944
15	Webbers Falls	Oklahoma	Hydroelectric	75 MW	1973
16	Stockton Hydro	Missouri	Hydroelectric	52 MW	1973
17	Fort Gibson	Oklahoma	Hydroelectric	44.8 MW	1953
18	Tenkiller Ferry	Oklahoma	Hydroelectric	39 MW	1953
19	Paragould Reciprocating	Arkansas	Natural gas	19.2 MW	2001
20	Paragould Turbine	Arkansas	Natural gas	13.9 MW	1990
21	SR Camden	Arkansas	Solar	12 MW	2015
22	Cana Gas Processing Plant	Oklahoma	Oil and petroleum	7.5 MW	2010
23	Municipal Light	Arkansas	Oil and petroleum	7.2 MW	1952
24	Scenic Hill Solar III	Arkansas	Solar	5 MW	2017
25	White River Lock and Dam 1	Arkansas	Hydroelectric	4.3 MW	2007

States

State	Plants	Capacity
Oklahoma	9	965 MW
Arkansas	16	961 MW
Missouri	4	674 MW

Operators with the most capacity

Operator	Plants	Capacity
USCE-Little Rock District	7	1,089 MW
USCE-Tulsa District	5	359 MW
Southern Power Co	1	299 MW
City of Sikeston (MO)	1	261 MW
USCE-Kansas City District	2	213 MW
Deriva Energy	1	200 MW
Kiowa County Solar Project, LLC	1	100 MW
Paragould Municipal Utilities (AR)	3	34.6 MW
Ozark Hydro Management, LLC	3	12.1 MW
SR Camden, LLC	1	12 MW