James H Miller Jr
Coal power plant · Jefferson County, Alabama
Nameplate capacity
2,822 MW
Rank in Alabama
#3
of 80 plants
In service since
1978
October 1978
Details
- Primary fuel
- Coal
- Technology
- Conventional Steam Coal
- Operator
- Alabama Power Co
- County
- Jefferson County
- Generating units
- 4
- Share of state capacity
- 8.54%
- Rank among coal plants in Alabama
- #2 of 3
- EIA plant code
- 6002
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | 706 MW | 688 MW | 1978 | Operating |
| 2 | Conventional Steam Coal | 706 MW | 693 MW | 1985 | Operating |
| 3 | Conventional Steam Coal | 706 MW | 693 MW | 1989 | Operating |
| 4 | Conventional Steam Coal | 706 MW | 704 MW | 1991 | 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 Alabama
| Browns Ferry | Nuclear | 3,854 MW |
| Barry | Coal | 3,344 MW |
| E C Gaston | Coal | 2,034 MW |
| H Allen Franklin Combined Cycle | Natural gas | 1,996 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 2,822 MW solar plant and a 2,822 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 Alabama power plants · What Alabama actually generates