Seminole Mill
Natural gas power plant · Duval County, Florida
Nameplate capacity
30 MW
Rank in Florida
#267
of 346 plants
In service since
1957
February 1957
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Steam Turbine
- Operator
- WestRock Seminole
- County
- Duval County
- Generating units
- 1
- Share of state capacity
- 0.04%
- Rank among natural gas plants in Florida
- #53 of 65
- EIA plant code
- 50803
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN3 | Natural Gas Steam Turbine | 30 MW | 20 MW | 1957 | 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 Florida
| Pasco Cnty Solid Waste Resource Recovery | Other | 31 MW |
| Gulf Coast Solar Center I | Solar | 30 MW |
| DeSoto Next Generation Solar Energy | Solar | 25 MW |
| English Creek Solar | Solar | 23 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 30 MW solar plant and a 30 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 Florida power plants · What Florida actually generates