12th largest plant in Oklahoma · 341st nationally
Horseshoe Lake is a natural gas power plant in Oklahoma with a nameplate capacity of 947 MW. It generates roughly 865.2k MWh per year — enough to power about 82,399 average U.S. homes.
Its capacity factor of 10% reflects intermittent or peaking operation. At 1312 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (947 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Horseshoe Lake |
|---|---|
| Operator | Oklahoma Gas & Electric Co |
| City | Harrah |
| County | Oklahoma County |
| State | Oklahoma |
| ZIP | 73045 |
| Coordinates | 35.50866, -97.17969 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 8 | Natural Gas Steam Turbine | Natural Gas | 443 MW | Operating | 1969 |
| 11 | Natural Gas Fired Combustion Turbine | Natural Gas | 224 MW | Regulatory | — |
| 12 | Natural Gas Fired Combustion Turbine | Natural Gas | 224 MW | Regulatory | — |
| ST7 | Natural Gas Steam Turbine | Natural Gas | 220 MW | Out of Service | 1963 |
| 6 | Natural Gas Steam Turbine | Natural Gas | 163 MW | Retired | 1958 |
| 10 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Operating | 2001 |
| 9 | Natural Gas Fired Combustion Turbine | Natural Gas | 60.5 MW | Operating | 2001 |
| GT7 | Natural Gas Fired Combustion Turbine | Natural Gas | 27.0 MW | Retired | 1963 |
| CO₂ | 567.5k metric tons |
|---|---|
| SO₂ | 3 metric tons |
| NOₓ | 1.0k metric tons |
| CO₂ Rate | 1312 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | MRO |
|---|---|
| Balancing Authority | Southwest Power Pool |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.