SAVANNAH RIVER SITE BIOMASS COGEN
OperatingPower plant
- Capacity
- 21 MW
- County
- Aiken County
- Operator
- AMERESCO
- Status
- Operating
- Commissioned
- 2012
- EIA plant ID
- 57138
- Coordinates
- 33.2734, -81.6877
SAVANNAH RIVER SITE BIOMASS COGEN, a 21 MW power plant in Aiken County, South Carolina. Operated by AMERESCO, commissioned 2012.
Weather peril exposure
SAVANNAH RIVER SITE BIOMASS COGEN is a 21 MW power plant in Aiken County, SC, operated by AMERESCO, commissioned in 2012. Aiken County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.9 of 5 at the 23rd national percentile. Hurricane is the leading peril, rated Relatively Moderate by FEMA at the 81st percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to this plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Aiken County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively Moderate | 81st | 4.2 of 5 | 0.14 |
| Earthquake | Relatively Low | 76th | 4.0 of 5 | <0.01 |
| Ice storm | Relatively High | 74th | 4.0 of 5 | 1.2 |
| Lightning | Relatively High | 71st | 3.8 of 5 | 61.4 |
| Tornado | Relatively Moderate | 48th | 2.9 of 5 | 0.71 |
| Wildfire | Relatively Low | 47th | 2.9 of 5 | <0.01 |
| Heat wave | Relatively Moderate | 27th | 2.1 of 5 | 4.6 |
| Hail | Relatively Moderate | 25th | 2.0 of 5 | 3.2 |
| Strong wind | Relatively Moderate | 24th | 2.0 of 5 | 4.9 |
| Winter weather | Relatively Low | 22nd | 1.9 of 5 | 1.6 |
| Riverine flooding | Relatively Moderate | 13th | 1.5 of 5 | 0.43 |
Perils not assessed in Aiken County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Aiken 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.