Power plants in the District of Columbia
the District of Columbia has 19 power plants of 1 MW or more in the 2025 EIA-860 data, with 70.5 MW of nameplate capacity, the 51st-largest total among the 50 states and DC. Solar accounts for 48% of that capacity. The biggest single site is Walt Bailey Bioenergy Facility at 14.1 MW. Units that came online from 2020 to 2025 add 26.6 MW, led by solar at 100%.
- Solar33.5 MW48%
- Natural gas22.9 MW32%
- Biomass and waste14.1 MW20%
What is running, by the decade it came online
Natural gasSolarBiomass and waste
Columns above the line show capacity still operating in 2025, stacked by fuel. Below the line: capacity retired in each decade at plants that still operate.
The 19 largest plants
| Rank | Plant | Runs on | Capacity | First unit | Operator |
|---|---|---|---|---|---|
| 1 | Walt Bailey Bioenergy Facility | Biomass and waste | 14.1 MW | 2015 | DC Water |
| 2 | US GSA Heating and Transmission | Natural gas | 10.8 MW | 2004 | US GSA Heating and Transmission |
| 3 | AOC, Capitol Power Plant | Natural gas | 7.5 MW | 2018 | Architect of the Capitol, Capitol Power Plant |
| 4 | JBAB - Washington DC | Solar | 5.9 MW | 2019 | JBAB Solar I, LLC. |
| 5 | Ross Hall Central Utility Plant | Natural gas | 4.6 MW | 2016 | The George Washington University |
| 6 | V Street Solar | Solar | 4.1 MW | 2025 | V Street Solar, LLC |
| 7 | DC Water Solar | Solar | 3.5 MW | 2021 | Marbury Point Solar LLC |
| 8 | CUA West Campus - North (CSG) | Solar | 3 MW | 2024 | Standard Solar |
| 9 | CUA West Campus - South (CSG) | Solar | 2.8 MW | 2024 | Standard Solar |
| 10 | Gallaudet Uni Community Solar | Solar | 2 MW | 2025 | SMS DC CS01B, LLC |
| 11 | Oxon Run CREF | Solar | 2 MW | 2021 | Oxon Run Community Renewable Energy Facility |
| 12 | Ridgecrest | Solar | 1.7 MW | 2021 | Greenbacker Renewable Energy Corporation |
| 13 | IGS CC, LLC | Solar | 1.5 MW | 2020 | Greenbacker Renewable Energy Corporation |
| 14 | DC Water | Solar | 1.3 MW | 2025 | Azimuth 180 Solar Electric, LLC |
| 15 | NCS Paradise LLC | Solar | 1.3 MW | 2021 | New Columbia Solar |
| 16 | WW-DC Solar 1, LLC | Solar | 1.2 MW | 2022 | Altus Power America Management, LLC |
| 17 | NCS FCPA LLC | Solar | 1.1 MW | 2020 | New Columbia Solar |
| 18 | WMATA - Anacostia CSG | Solar | 1.1 MW | 2023 | MN8 Energy LLC |
| 19 | Nationals | Solar | 1 MW | 2019 | Terraform Arcadia |
Largest plant for each main fuel
| Main fuel | Plants | Capacity | Largest plant | Its capacity |
|---|---|---|---|---|
| Solar | 15 | 33.5 MW | JBAB - Washington DC | 5.9 MW |
| Natural gas | 3 | 22.9 MW | US GSA Heating and Transmission | 10.8 MW |
| Biomass and waste | 1 | 14.1 MW | Walt Bailey Bioenergy Facility | 14.1 MW |
Balancing areas
| Area | Plants | Capacity |
|---|---|---|
| PJM Interconnection | 19 | 70.5 MW |
Biggest operators here
| Operator | Plants | Capacity |
|---|---|---|
| DC Water | 1 | 14.1 MW |
| US GSA Heating and Transmission | 1 | 10.8 MW |
| Architect of the Capitol, Capitol Power Plant | 1 | 7.5 MW |
| JBAB Solar I, LLC. | 1 | 5.9 MW |
| Standard Solar | 2 | 5.8 MW |
| The George Washington University | 1 | 4.6 MW |
| V Street Solar, LLC | 1 | 4.1 MW |
| Marbury Point Solar LLC | 1 | 3.5 MW |
| Greenbacker Renewable Energy Corporation | 2 | 3.2 MW |
| New Columbia Solar | 2 | 2.4 MW |