7th largest plant in Alabama · 196th nationally
E B Harris Electric Generating Plant is a natural gas power plant in Alabama with a nameplate capacity of 1,304 MW. It generates roughly 6.5M MWh per year — enough to power about 615,283 average U.S. homes.
Its capacity factor of 57% puts it in the middle range — running steadily but not full-time. At 825 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 (1,304 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 | E B Harris Electric Generating Plant |
|---|---|
| Operator | Southern Power Co |
| City | Autaugaville |
| County | Autauga County |
| State | Alabama |
| ZIP | 36067 |
| Coordinates | 32.38135, -86.57437 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 3 | Natural Gas Fired Combined Cycle | Natural Gas | 615 MW | Cancelled | — |
| 4 | Natural Gas Fired Combined Cycle | Natural Gas | 615 MW | Cancelled | — |
| ST1 | Natural Gas Fired Combined Cycle | Natural Gas | 282 MW | Operating | 2003 |
| ST2 | Natural Gas Fired Combined Cycle | Natural Gas | 282 MW | Operating | 2003 |
| CT1A | Natural Gas Fired Combined Cycle | Natural Gas | 185 MW | Operating | 2003 |
| CT1B | Natural Gas Fired Combined Cycle | Natural Gas | 185 MW | Operating | 2003 |
| CT2A | Natural Gas Fired Combined Cycle | Natural Gas | 185 MW | Operating | 2003 |
| CT2B | Natural Gas Fired Combined Cycle | Natural Gas | 185 MW | Operating | 2003 |
| CO₂ | 2.7M metric tons |
|---|---|
| SO₂ | 13 metric tons |
| NOₓ | 220 metric tons |
| CO₂ Rate | 825 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 | Southern Company Services, Inc. - Trans |
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.