Power plants in District of Columbia emit a combined 33.9k metric tons of CO₂ per year. The table below ranks the top emitters — predominantly coal and natural gas plants. Emission rates vary widely even within the same fuel type: efficient combined-cycle gas plants produce roughly 900 lb CO₂/MWh, while older coal plants can exceed 2,200 lb/MWh.
Emissions data comes from the EPA eGRID program. Zero-emission sources (nuclear, solar, wind, hydro) are excluded from this ranking. For methodology details, see the methodology page.
| # | Plant | State | Fuel | CO₂ (tons/yr) |
|---|---|---|---|---|
| 1 | Aoc, Capitol Power Plant | District of Columbia | Natural Gas | 29.4k |
| 2 | Ross Hall Central Utility Plant | District of Columbia | Natural Gas | 4.3k |
| 3 | Walt Bailey Bioenergy Facility | District of Columbia | Biomass | 126 |
PowerPlantsNearMe.com. (2026). Most Polluting Power Plants in District of Columbia. Derived from EIA Form 860, EIA Form 923, and EPA eGRID. Retrieved from https://powerplantsnearme.com/most-polluting-power-plants/district-of-columbia
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