ENERGY SHELBY COUNTY
OperatingNatural Gas power plant
- Capacity
- 483 MW
- Primary fuel
- Natural Gas
- County
- Shelby County
- Operator
- NRG WHOLESALE GENERATION LP
- Status
- Operating
- Commissioned
- 2000
- EIA plant ID
- 55237
- Generators
- 8
- Technology
- Natural Gas Fired Combustion Turbine
- Net generation (2024)
- 201 GWh
- Capacity factor (2024, EIA nameplate)
- 4.7%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 39.2794, -88.4772
ENERGY SHELBY COUNTY, a 483 MW Natural Gas power plant in Shelby County, Illinois. Operated by NRG WHOLESALE GENERATION LP, commissioned 2000.
How ENERGY SHELBY COUNTY compares
With 483 MW of capacity, ENERGY SHELBY COUNTY ranks 24th among the 158 operating power plants Bywatts maps in Illinois and 13th of the 50 operating Natural Gas plants in the state. It accounts for about 3.2% of Illinois's operating Natural Gas capacity and 1.2% of all operating capacity in the state. Nationally it is the 341st-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2000, it is newer than 51% of the 150 operating Illinois plants with a recorded commissioning year. Its operator, NRG WHOLESALE GENERATION LP, runs 2 operating plants in Illinois totaling 1,758 MW. It shares Shelby County with one other operating plant, HOLLAND ENERGY FACILITY.
EIA-860 lists 8 generators at the site with 483 MW of nameplate capacity, all natural gas fired combustion turbine technology. Net generation was 201 GWh in 2024 (a 4.7% capacity factor). Its generators came online between 2000 and 2001.
Grid neighborhood
The closest transmission line found within 10 miles is a 345 kV line owned by AMEREN ILLINOIS COMPANY, under 0.1 miles away. Another 3 operating power plants totaling 735 MW sit within 25 miles; the largest is HOLLAND ENERGY FACILITY (702 MW, Natural Gas).
Computed by Bywatts from HIFLD power plant and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
ENERGY SHELBY COUNTY is a 483 MW natural gas power plant in Shelby County, IL, operated by NRG WHOLESALE GENERATION LP, commissioned in 2000. Shelby County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.3 of 5 at the 58th national percentile. Earthquake is the leading peril, rated Relatively Low by FEMA at the 88th 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.
Shelby County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively Low | 88th | 4.5 of 5 | <0.01 |
| Riverine flooding | Relatively Low | 76th | 4.0 of 5 | 1.9 |
| Strong wind | Relatively Low | 71st | 3.8 of 5 | 4.9 |
| Hail | Relatively Low | 65th | 3.6 of 5 | 3.0 |
| Winter weather | Relatively Low | 56th | 3.2 of 5 | 8.4 |
| Tornado | Relatively Low | 56th | 3.2 of 5 | 0.76 |
| Ice storm | Very Low | 37th | 2.5 of 5 | 1.1 |
| Hurricane | Very Low | 35th | 2.4 of 5 | 0.03 |
| Heat wave | Relatively Low | 31st | 2.2 of 5 | 7.7 |
| Lightning | Relatively Moderate | 22nd | 1.9 of 5 | 48.4 |
| Wildfire | Very Low | 15th | 1.6 of 5 | <0.01 |
Perils not assessed in Shelby 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 Shelby 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.