Power plants in Oklahoma
Oklahoma has 143 power plants of 1 MW or more in the 2025 EIA-860 data, with 35.8 GW of nameplate capacity, the tenth-largest total among the 50 states and DC. Natural gas accounts for 46% of that capacity. The biggest single site is Muskogee at 1,716 MW. Units that came online from 2020 to 2025 add 6,459 MW, led by wind at 85%. Units retired since 2016 at plants still operating total 1,950 MW, most of it coal.
- Natural gas16,476 MW46%
- Wind13,594 MW38%
- Coal3,573 MW10.0%
- Hydroelectric824 MW2.3%
- Solar524 MW1.5%
- Battery storage432 MW1.2%
- Pumped-storage hydro259 MW0.7%
- Biomass and waste88 MW0.2%
- Oil and petroleum56.8 MW0.2%
What is running, by the decade it came online
CoalNatural gasOil and petroleumHydroelectricPumped-storage hydroWindSolarBattery storageBiomass and waste
Columns above the line show capacity still operating in 2025, stacked by fuel. Below the line: capacity retired in each decade at plants that still operate.
The 25 largest plants
| Rank | Plant | Runs on | Capacity | First unit | Operator |
|---|---|---|---|---|---|
| 1 | Muskogee | Natural gas | 1,716 MW | 1977 | Oklahoma Gas & Electric Co |
| 2 | Seminole (OK) | Natural gas | 1,701 MW | 1971 | Oklahoma Gas & Electric Co |
| 3 | Northeastern | Natural gas | 1,478 MW | 1961 | Public Service Co of Oklahoma |
| 4 | Redbud Power Plant | Natural gas | 1,434 MW | 2004 | Oklahoma Gas & Electric Co |
| 5 | Kiamichi Energy Facility | Natural gas | 1,370 MW | 2003 | Kiowa Power Partners LLC |
| 6 | Oneta Energy Center | Natural gas | 1,214 MW | 2002 | Oneta Power LLC |
| 7 | GREC | Natural gas | 1,194 MW | 1985 | Grand River Dam Authority |
| 8 | Sooner | Coal | 1,138 MW | 1979 | Oklahoma Gas & Electric Co |
| 9 | Riverside (OK) | Natural gas | 1,122 MW | 1974 | Public Service Co of Oklahoma |
| 10 | Chouteau | Natural gas | 1,070 MW | 2000 | Associated Electric Coop, Inc |
| 11 | Traverse Wind Project, LLC | Wind | 999 MW | 2022 | Southwestern Electric Power Co |
| 12 | Green Country Power Station | Natural gas | 904 MW | 2002 | Public Service Co of Oklahoma |
| 13 | Skeleton Creek Energy Center Hybrid | Battery storage | 752 MW | 2020 | Skeleton Creek Energy Center |
| 14 | Southwestern | Natural gas | 658 MW | 1952 | Public Service Co of Oklahoma |
| 15 | Wagon Wheel Wind | Wind | 598 MW | 2025 | Southwestern Electric Power Co |
| 16 | Horseshoe Lake | Natural gas | 564 MW | 1969 | Oklahoma Gas & Electric Co |
| 17 | McClain Energy Facility | Natural gas | 551 MW | 2001 | Oklahoma Gas & Electric Co |
| 18 | Anadarko Plant | Natural gas | 540 MW | 1977 | Western Farmers Elec Coop, Inc |
| 19 | Mustang | Natural gas | 464 MW | 2015 | Oklahoma Gas & Electric Co |
| 20 | Hugo | Coal | 446 MW | 1982 | Western Farmers Elec Coop, Inc |
| 21 | Frontier Windpower II | Wind | 352 MW | 2021 | Deriva Energy |
| 22 | River Valley | Coal | 350 MW | 1990 | Oklahoma Gas & Electric Co |
| 23 | Tulsa | Natural gas | 348 MW | 1956 | Public Service Co of Oklahoma |
| 24 | Spring Creek Energy Center | Natural gas | 346 MW | 2001 | Evergy Kansas Central, Inc |
| 25 | Mooreland | Natural gas | 305 MW | 1964 | Western Farmers Elec Coop, Inc |
Largest plant for each main fuel
| Main fuel | Plants | Capacity | Largest plant | Its capacity |
|---|---|---|---|---|
| Natural gas | 34 | 18.1 GW | Muskogee | 1,716 MW |
| Wind | 69 | 13.3 GW | Traverse Wind Project, LLC | 999 MW |
| Coal | 3 | 1,934 MW | Sooner | 1,138 MW |
| Hydroelectric | 10 | 824 MW | Pensacola | 130 MW |
| Solar | 14 | 271 MW | North Fork Solar Project | 120 MW |
| Battery storage | 5 | 932 MW | Skeleton Creek Energy Center Hybrid | 752 MW |
| Pumped-storage hydro | 1 | 259 MW | Salina | 259 MW |
| Biomass and waste | 3 | 88 MW | International Paper Valliant OK | 68 MW |
| Oil and petroleum | 4 | 29.6 MW | Kingfisher | 9.1 MW |
Balancing areas
| Area | Plants | Capacity |
|---|---|---|
| Southwest Power Pool | 131 | 32.3 GW |
| ERCOT (Texas) | 1 | 1,370 MW |
| Associated Electric Cooperative | 2 | 1,220 MW |
| Southwestern Power Administration | 9 | 965 MW |
Biggest operators here
| Operator | Plants | Capacity |
|---|---|---|
| Oklahoma Gas & Electric Co | 17 | 8,606 MW |
| Public Service Co of Oklahoma | 10 | 5,555 MW |
| Grand River Dam Authority | 4 | 1,712 MW |
| Southwestern Electric Power Co | 2 | 1,597 MW |
| Kiowa Power Partners LLC | 1 | 1,370 MW |
| Western Farmers Elec Coop, Inc | 8 | 1,309 MW |
| Oneta Power LLC | 1 | 1,214 MW |
| Associated Electric Coop, Inc | 1 | 1,070 MW |
| Southern Power Co | 5 | 815 MW |
| Skeleton Creek Energy Center | 1 | 752 MW |