Horseshoe Lake
Natural gas power plant · Oklahoma County, Oklahoma
Nameplate capacity
564 MW
Rank in Oklahoma
#16
of 147 plants
In service since
1969
June 1969
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Steam Turbine
- Operator
- Oklahoma Gas & Electric Co
- County
- Oklahoma County
- Generating units
- 3
- Share of state capacity
- 1.55%
- Rank among natural gas plants in Oklahoma
- #11 of 33
- EIA plant code
- 2951
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 8 | Natural Gas Steam Turbine | 443 MW | 377 MW | 1969 | Operating |
| 10 | Natural Gas Fired Combustion Turbine | 61 MW | 46 MW | 2001 | Operating |
| 9 | Natural Gas Fired Combustion Turbine | 61 MW | 45 MW | 2001 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Oklahoma
| Southwestern | Natural gas | 658 MW |
| Wagon Wheel Wind | Wind | 598 MW |
| McClain Energy Facility | Natural gas | 551 MW |
| Anadarko Plant | Natural gas | 540 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 564 MW solar plant and a 564 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Oklahoma power plants · What Oklahoma actually generates