4th largest plant in Delaware · 899th nationally
Garrison Energy Center Llc is a natural gas power plant in Delaware with a nameplate capacity of 361 MW. It generates roughly 816.6k MWh per year — enough to power about 77,767 average U.S. homes.
Its capacity factor of 26% reflects intermittent or peaking operation. At 870 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (361 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Garrison Energy Center Llc |
|---|---|
| Operator | Garrison Energy Center Llc |
| City | Dover |
| County | Kent County |
| State | Delaware |
| ZIP | 19901 |
| Coordinates | 39.18720, -75.49940 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | Natural Gas | 235 MW | Operating | 2015 |
| STG2 | Natural Gas Fired Combined Cycle | Natural Gas | 126 MW | Operating | 2015 |
| Owner | Location | Share |
|---|---|---|
| Cobalt Power, L.l.c. | Greenwich, CT | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 355.1k metric tons |
|---|---|
| SO₂ | 2 metric tons |
| NOₓ | 28 metric tons |
| CO₂ Rate | 870 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | RFC |
|---|---|
| Balancing Authority | Pjm Interconnection, Llc |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.