AOC, Capitol Power Plant
Natural gas power plant · District of Columbia County, District of Columbia
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Architect of the Capitol, Capitol Power Plant
- County
- District of Columbia County
- Generating units
- 1
- Share of state capacity
- 10.39%
- Rank among natural gas plants in District of Columbia
- #2 of 3
- EIA plant code
- 63347
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combustion Turbine | 7.5 MW | 7.5 MW | 2018 | 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 District of Columbia
| Walt Bailey Bioenergy Facility | Other | 14 MW |
| US GSA Heating and Transmission | Natural gas | 11 MW |
| JBAB - Washington DC | Solar | 5.9 MW |
| Ross Hall Central Utility Plant | Natural gas | 4.6 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 7.5 MW solar plant and a 7.5 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 District of Columbia power plants · What District of Columbia actually generates