Garrison Energy Center LLC
Natural gas power plant · Kent County, Delaware
Nameplate capacity
361 MW
Rank in Delaware
#3
of 39 plants
In service since
2015
June 2015
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Garrison Energy Center LLC
- County
- Kent County
- Generating units
- 2
- Share of state capacity
- 11.94%
- Rank among natural gas plants in Delaware
- #3 of 10
- EIA plant code
- 57349
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | 235 MW | 186 MW | 2015 | Operating |
| STG2 | Natural Gas Fired Combined Cycle | 126 MW | 123 MW | 2015 | 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 Delaware
| Hay Road | Natural gas | 1,098 MW |
| Edge Moor | Natural gas | 710 MW |
| Delaware City Plant | Natural gas | 324 MW |
| Energy Center Dover | Natural gas | 118 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 361 MW solar plant and a 361 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 Delaware power plants · What Delaware actually generates