James H Miller Jr
James H Miller Jr is a coal plant in Jefferson County, Alabama, operated by Alabama Power Co. By nameplate capacity it is the 18th-largest power plant in the United States and the third-largest in Alabama. Among the 195 coal plants in the country it is the sixth-largest.
Nameplate capacity, 2025
2,822 MW
2,778 MW net summer capacity
4 operable units
- Coal steam2,822 MW100%
Unit by unit, 1978 to 2025
operating in 2025bar height follows unit size
Unit 1 Coal steam, 706 MW, 1978
Unit 2 Coal steam, 706 MW, 1985
Unit 3 Coal steam, 706 MW, 1989
Unit 4 Coal steam, 706 MW, 1991
Among Alabama’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Browns Ferry3,854 MW
- 2Barry3,344 MW
- 3James H Miller Jrthis plant
- 4E C Gaston2,034 MW
- 5H Allen Franklin Combined Cycle1,996 MW
Other rankings
- Plants in the Southern Company balancing area
- 5th of 335
- Plants run by Alabama Power Co
- 2nd of 27
- Biggest single unit, among Alabama’s plants
- 5th of 78
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Coal steam | 706 MW | 688 MW | 1978 | Operating |
| 2 | Coal steam | 706 MW | 693 MW | 1985 | Operating |
| 3 | Coal steam | 706 MW | 693 MW | 1989 | Operating |
| 4 | Coal steam | 706 MW | 704 MW | 1991 | Operating |
Who owns it
Shares are weighted by the nameplate capacity of each unit an owner holds.
| Owner | Share of capacity |
|---|---|
| Alabama Power Co | 45.9% |
| PowerSouth Energy Cooperative | 4.1% |
| Alabama Power Co (sole owner of the other units) | 50.0% |
Grid and site
- Balancing area
- Southern Company
- Reliability region
- SERC Reliability Corporation
- Highest grid connection voltage
- 500 kV
- Water source
- Black Warrior River
- Nearest town on record
- Quinton
- Operator type
- Utility
- Coordinates
- 33.632°N, 87.060°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| ABC Coke | Natural gas | 3.8 MW | 16.5 mi east |
| Bankhead Dam | Hydroelectric | 53.9 MW | 20.9 mi southwest |
| Lewis Smith Dam | Hydroelectric | 181 MW | 21.5 mi north |
| Holt Dam | Hydroelectric | 46.9 MW | 34.4 mi southwest |
| E C Gaston | Natural gas | 2,034 MW | 43.8 mi southeast |
| Logan Martin Dam | Hydroelectric | 128 MW | 44.0 mi east |
| U S Alliance Coosa Pines | Biomass and waste | 25.9 MW | 45.6 mi southeast |
| AMEA Peaking | Natural gas | 98.6 MW | 55.2 mi southeast |