4 AC STATION
OperatingNatural Gas power plant
- Primary fuel
- Natural Gas
- County
- Lake County
- Operator
- ARCELORMITTAL USA INC
- Status
- Operating
- EIA plant ID
- 10474
- Coordinates
- 41.6796, -87.4271
4 AC STATION, a Natural Gas power plant in Lake County, Indiana. Operated by ARCELORMITTAL USA INC. One of 104 power plants tracked in Indiana on Bywatts.
Weather peril exposure
4 AC STATION is a natural gas power plant in Lake County, IN, operated by ARCELORMITTAL USA INC. Lake County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.5 of 5 at the 12th national percentile. Heat wave is the leading peril, rated Relatively Moderate by FEMA at the 82nd percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Lake County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Relatively Moderate | 82nd | 4.3 of 5 | 3.2 |
| Tornado | Very High | 67th | 3.7 of 5 | 0.42 |
| Earthquake | Relatively Low | 54th | 3.2 of 5 | <0.01 |
| Riverine flooding | Relatively High | 45th | 2.8 of 5 | 2.4 |
| Wildfire | Relatively Low | 44th | 2.8 of 5 | <0.01 |
| Strong wind | Relatively High | 32nd | 2.3 of 5 | 5.5 |
| Hail | Relatively Low | 22nd | 1.9 of 5 | 3.7 |
| Lightning | Relatively High | 16th | 1.7 of 5 | 43.5 |
| Ice storm | Relatively Moderate | 13th | 1.5 of 5 | 0.87 |
| Winter weather | Relatively High | 11th | 1.5 of 5 | 14.1 |
| Coastal flooding | Very Low | 5th | 1.2 of 5 | 0.01 |
| Hurricane | Very Low | 1st | 1.0 of 5 | <0.01 |
Model hail, wind and flood exposure for Lake 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.