3rd largest plant in District of Columbia · 6341st nationally
Aoc, Capitol Power Plant is a natural gas power plant in District of Columbia with a nameplate capacity of 7.5 MW. It generates roughly 49.4k MWh per year — enough to power about 4,705 average U.S. homes.
Its capacity factor of 75% puts it in the middle range — running steadily but not full-time. At 1190 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Aoc, Capitol Power Plant |
|---|---|
| Operator | Architect Of The Capitol, Capitol Power Plant |
| City | Washington |
| County | District Of Columbia County |
| State | District of Columbia |
| ZIP | 20003 |
| Coordinates | 38.88270, -77.00744 |
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 Combustion Turbine | Natural Gas | 7.5 MW | Operating | 2018 |
| CO₂ | 29.4k metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 81 metric tons |
| CO₂ Rate | 1190 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.