7th largest plant in Arkansas · 487th nationally
Hot Spring Generating Facility is a natural gas power plant in Arkansas with a nameplate capacity of 715 MW. It generates roughly 2.2M MWh per year — enough to power about 206,930 average U.S. homes.
Its capacity factor of 35% reflects intermittent or peaking operation. At 875 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 (715 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 | Hot Spring Generating Facility |
|---|---|
| Operator | Entergy Arkansas Llc |
| City | Malvern |
| County | Hot Spring County |
| State | Arkansas |
| ZIP | 72104 |
| Coordinates | 34.29759, -92.86834 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ST2 | Natural Gas Fired Combined Cycle | Natural Gas | 317 MW | Cancelled | — |
| ST1 | Natural Gas Fired Combined Cycle | Natural Gas | 317 MW | Operating | 2002 |
| CT1 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2002 |
| CT2 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2002 |
| CT3 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Cancelled | — |
| CT4 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Cancelled | — |
| CO₂ | 950.6k metric tons |
|---|---|
| SO₂ | 5 metric tons |
| NOₓ | 88 metric tons |
| CO₂ Rate | 875 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 | SERC |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
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.