GRANITE CITY WORKS
OperatingPower plant
- Capacity
- 78 MW
- County
- Madison County
- Operator
- UNITED STATES STEEL GRANITE CITY WORKS
- Status
- Operating
- Commissioned
- 2010
- EIA plant ID
- 57072
- Coordinates
- 38.6970, -90.1286
GRANITE CITY WORKS, a 78 MW power plant in Madison County, Illinois. Operated by UNITED STATES STEEL GRANITE CITY WORKS, commissioned 2010.
Weather peril exposure
GRANITE CITY WORKS is a 78 MW power plant in Madison County, IL, operated by UNITED STATES STEEL GRANITE CITY WORKS, commissioned in 2010. Madison County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.0 of 5 at the 75th national percentile. Earthquake is the leading peril, rated Relatively Moderate by FEMA at the 92nd 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.
Madison County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively Moderate | 92nd | 4.7 of 5 | <0.01 |
| Hail | Relatively High | 79th | 4.2 of 5 | 5.0 |
| Heat wave | Relatively High | 73rd | 3.9 of 5 | 14.7 |
| Tornado | Relatively High | 68th | 3.7 of 5 | 0.68 |
| Winter weather | Relatively High | 61st | 3.4 of 5 | 8.9 |
| Riverine flooding | Relatively Moderate | 61st | 3.4 of 5 | 1.4 |
| Lightning | Relatively High | 61st | 3.4 of 5 | 49.9 |
| Ice storm | Relatively Moderate | 42nd | 2.7 of 5 | 1.2 |
| Strong wind | Relatively Moderate | 12th | 1.5 of 5 | 6.2 |
| Hurricane | Very Low | 8th | 1.3 of 5 | 0.01 |
| Wildfire | Very Low | 6th | 1.2 of 5 | <0.01 |
Perils not assessed in Madison 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 Madison 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.