Power plants in Mayes County, Oklahoma
11 operating power plants in Mayes County, Oklahoma, with 3,357 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
11
Nameplate capacity
3,357 MW
Net generation, 2025
10.2 TWh
5 of 11 plants reported
Largest power plants in Mayes County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | GRECNatural gas and coal | 1,194 | 3,997 | 38.2% |
| 2 | ChouteauNatural gas | 1,070 | 5,563 | – |
| 3 | SalinaPumped storage | 259 | −33.8 | – |
| 4 | Twelvemile Solar 1Solar | 152 | – | – |
| 5 | PensacolaHydro | 130 | 422 | 37.0% |
| 6 | MarkhamHydro | 128 | 288 | 25.6% |
| 7 | Huckleberry SolarSolar | 125 | – | – |
| 8 | Mayes County SolarSolar | 102 | – | – |
| 9 | Saltbranch Solar 1Solar | 73 | – | – |
| 10 | Saltbranch 2Solar | 73 | – | – |
| 11 | Twelvemile Solar 2Solar | 52 | – | – |
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
More power plant lists for Oklahoma
Largest power plants in Oklahoma50 plants · 28,142 MWSolar farms in Oklahoma22 plants · 1,182 MWWind farms in Oklahoma71 plants · 13,742 MWBattery storage projects in Oklahoma5 projects · 432 MWNatural gas power plants in Oklahoma34 plants · 16,487 MWCoal power plants in Oklahoma6 plants · 3,573 MWHydroelectric power plants in Oklahoma9 plants · 732 MW