KENDALL COUNTY GENERATION FACILITY
OperatingNatural Gas power plant
- Capacity
- 1,256 MW
- Primary fuel
- Natural Gas
- County
- Kendall County
- Operator
- DYNEGY KENDALL ENERGY LLC
- Status
- Operating
- Commissioned
- 2002
- EIA plant ID
- 55131
- Generators
- 8
- Technology
- Natural Gas Fired Combined Cycle
- Net generation (2024)
- 4,630 GWh
- Capacity factor (2024, EIA nameplate)
- 42%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 41.4801, -88.2572
KENDALL COUNTY GENERATION FACILITY, a 1,256 MW Natural Gas power plant in Kendall County, Illinois. Operated by DYNEGY KENDALL ENERGY LLC, commissioned 2002.
How KENDALL COUNTY GENERATION FACILITY compares
With 1,256 MW of capacity, KENDALL COUNTY GENERATION FACILITY ranks 12th among the 158 operating power plants Bywatts maps in Illinois and 3rd of the 50 operating Natural Gas plants in the state. It accounts for about 8.4% of Illinois's operating Natural Gas capacity and 3.1% of all operating capacity in the state. Nationally it is the 49th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2002, it is newer than 62% of the 150 operating Illinois plants with a recorded commissioning year.
EIA-860 lists 8 generators at the site with 1,256 MW of nameplate capacity, all natural gas fired combined cycle technology. Net generation was 4,630 GWh in 2024 (a 42% capacity factor), down 9% from 2022.
Grid neighborhood
The nearest named substation is JOLIET (345 kV), about 7.4 miles away; the closest transmission line found within 10 miles is a 345 kV line owned by COMMONWEALTH EDISON CO, under 0.1 miles away. Another 12 operating power plants totaling 8,414 MW sit within 25 miles; the largest is BRAIDWOOD GENERATION STATION (2,450 MW, Nuclear). Within 50 miles are 9 mapped data centers; the nearest is CyrusOne Chicago (Lombard) in Lombard, about 28.1 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
KENDALL COUNTY GENERATION FACILITY is a 1,256 MW natural gas power plant in Kendall County, IL, operated by DYNEGY KENDALL ENERGY LLC, commissioned in 2002. Kendall County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.6 of 5 at the 15th national percentile. Heat wave is the leading peril, rated Relatively Low by FEMA at the 83rd 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.
Kendall County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Relatively Low | 83rd | 4.3 of 5 | 3.5 |
| Tornado | Relatively Moderate | 74th | 4.0 of 5 | 0.27 |
| Strong wind | Relatively High | 67th | 3.7 of 5 | 6.3 |
| Riverine flooding | Relatively Moderate | 63rd | 3.5 of 5 | 1.0 |
| Earthquake | Relatively Low | 51st | 3.0 of 5 | <0.01 |
| Ice storm | Relatively Low | 27th | 2.1 of 5 | 0.93 |
| Wildfire | Very Low | 26th | 2.0 of 5 | <0.01 |
| Hail | Very Low | 20th | 1.8 of 5 | 4.4 |
| Winter weather | Relatively Low | 17th | 1.7 of 5 | 14.4 |
| Lightning | Relatively Low | 15th | 1.6 of 5 | 44.2 |
| Hurricane | Very Low | 1st | 1.0 of 5 | 0.01 |
Perils not assessed in Kendall 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 Kendall 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.