7th largest plant in Oklahoma · 241st nationally
Grec is a natural gas power plant in Oklahoma with a nameplate capacity of 1,194 MW. It generates roughly 3.6M MWh per year — enough to power about 344,478 average U.S. homes.
Its capacity factor of 35% reflects intermittent or peaking operation. At 1191 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 (1,194 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 | Grec |
|---|---|
| Operator | Grand River Dam Authority |
| City | Chouteau |
| County | Mayes County |
| State | Oklahoma |
| ZIP | 74337 |
| Coordinates | 36.19028, -95.28940 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 2 | Conventional Steam Coal | Subbituminous Coal | 594 MW | Operating | 1985 |
| 4 | Natural Gas Fired Combustion Turbine | Natural Gas | 594 MW | Approved | — |
| 1 | Conventional Steam Coal | Subbituminous Coal | 540 MW | Retired | 1981 |
| 3CT | Natural Gas Fired Combined Cycle | Natural Gas | 369 MW | Operating | 2017 |
| 3ST | Natural Gas Fired Combined Cycle | Natural Gas | 231 MW | Operating | 2017 |
| CO₂ | 2.2M metric tons |
|---|---|
| SO₂ | 785 metric tons |
| NOₓ | 997 metric tons |
| CO₂ Rate | 1191 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.