GridPlants

Seminole (FL)

Natural gasFloridaFirst unit online 1984

Seminole (FL) is a natural gas plant in Putnam County, Florida, operated by Seminole Electric Cooperative Inc. Of its current capacity, 1,183 MW came online between 2023 and 2025. Retired units here add up to 715 MW across 1 unit, taken out of service in 2024.

Nameplate capacity, 2025

1,898 MW

1,735 MW net summer capacity

4 operable units

  • Gas combined cycle1,183 MW62%
  • Coal steam715 MW38%

Unit by unit, 1984 to 2025

operating in 2025retiredbar height follows unit size

Unit 2 Coal steam, 715 MW, 1984
Unit 1 Coal steam, 715 MW, 1984–2024
Unit CT1 Gas combined cycle, 384 MW, 2023
Unit CT2 Gas combined cycle, 384 MW, 2023
Unit ST Gas combined cycle, 415 MW, 2023

Among Florida’s plants

Largest plants in the state by nameplate capacity, with the plants ranked next to this one.

  1. 1West County Energy Center4,263 MW
  2. 2Crystal River3,449 MW
  3. 3Turkey Point2,978 MW
  4. 10St Lucie2,160 MW
  5. 11Gulf Clean Energy Center2,108 MW
  6. 12Seminole (FL)this plant
  7. 13Big Bend1,797 MW
  8. 14Okeechobee Clean Energy Center1,723 MW

All power plants in Florida

Other rankings

All US power plants
78th of 14,286
Power plants in Florida
12th of 331
US natural gas plants
23rd of 1,961
Natural gas plants in Florida
10th of 68
Plants in the Seminole Electric Cooperative balancing area
1st of 3
Plants run by Seminole Electric Cooperative Inc
1st of 2
Biggest single unit, among Florida’s plants
5th of 331

Operable units

UnitTechnologyNameplateSummerOnlineStatus
2Coal steam715 MW634 MW1984Operating
CT1Gas combined cycle384 MW353 MW2023Operating
CT2Gas combined cycle384 MW355 MW2023Operating
STGas combined cycle415 MW394 MW2023Operating

Retired units

UnitTechnologyNameplateIn service
1Coal steam715 MW1984–2024

Grid and site

Balancing area
Seminole Electric Cooperative
Reliability region
SERC Reliability Corporation
Highest grid connection voltage
230 kV
Water source
St Johns River
Nearest town on record
Palatka
Operator type
Utility
Coordinates
29.733°N, 81.633°W

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