COVANTA FAIRFAX ENERGY
OperatingBiomass power plant
- Capacity
- 124 MW
- Primary fuel
- Biomass
- County
- Fairfax County
- Operator
- COVANTA FAIRFAX INC
- Status
- Operating
- Commissioned
- 1990
- EIA plant ID
- 50658
- Generators
- 2
- Technology
- Municipal Solid Waste
- Net generation (2024)
- 642 GWh
- Capacity factor (2024, EIA nameplate)
- 59%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 38.6960, -77.2411
COVANTA FAIRFAX ENERGY, a 124 MW Biomass power plant in Fairfax County, Virginia. Operated by COVANTA FAIRFAX INC, commissioned 1990.
How COVANTA FAIRFAX ENERGY compares
With 124 MW of capacity, COVANTA FAIRFAX ENERGY ranks 25th among the 103 operating power plants Bywatts maps in Virginia and is the largest of the 16 operating Biomass plants in the state. It accounts for about 24% of Virginia's operating Biomass capacity and 0.6% of all operating capacity in the state. Nationally it is the 8th-largest of the 350 operating Biomass plants in the database. Commissioned in 1990, it is older than 51% of the 101 operating Virginia plants with a recorded commissioning year. It shares Fairfax County with one other operating plant, I 95 LANDFILL PHASE II.
EIA-860 lists 2 generators at the site with 124 MW of nameplate capacity, all municipal solid waste technology. Net generation was 642 GWh in 2024 (a 59% capacity factor), down 11% from 2022.
Grid neighborhood
The nearest named substation is OCCOQUAN, about 1.9 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by VIRGINIA ELECTRIC & POWER CO, under 0.1 miles away. Another 15 operating power plants totaling 1,029 MW sit within 25 miles; the largest is POSSUM POINT (613 MW, Natural Gas). Within 50 miles are 13 mapped data centers; the nearest is Equinix DC7 - Ashburn, Vienna in Vienna, about 14.7 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
COVANTA FAIRFAX ENERGY is a 124 MW biomass power plant in Fairfax County, VA, operated by COVANTA FAIRFAX INC, commissioned in 1990. Fairfax County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.2 of 5 at the 30th national percentile. Hurricane is the leading peril, rated Relatively Moderate by FEMA at the 74th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a biomass plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Fairfax County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively Moderate | 74th | 3.9 of 5 | 0.09 |
| Earthquake | Relatively Moderate | 57th | 3.3 of 5 | <0.01 |
| Coastal flooding | Relatively Low | 45th | 2.8 of 5 | 3.8 |
| Hail | Relatively High | 44th | 2.7 of 5 | 3.9 |
| Winter weather | Very High | 36th | 2.4 of 5 | 9.7 |
| Heat wave | Relatively High | 32nd | 2.3 of 5 | 5.9 |
| Ice storm | Relatively Moderate | 31st | 2.3 of 5 | 0.56 |
| Riverine flooding | Relatively High | 26th | 2.0 of 5 | 5.8 |
| Lightning | Very High | 20th | 1.8 of 5 | 40.9 |
| Strong wind | Relatively High | 18th | 1.7 of 5 | 7.8 |
| Wildfire | Very Low | 10th | 1.4 of 5 | <0.01 |
| Tornado | Relatively Low | 9th | 1.4 of 5 | 0.30 |
Model hail, wind and flood exposure for Fairfax County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.