LASALLE GENERATING STATION
OperatingNuclear power plant
- Capacity
- 2,340 MW
- Primary fuel
- Nuclear
- County
- LaSalle County
- Operator
- EXELON NUCLEAR
- Status
- Operating
- Commissioned
- 1984
- EIA plant ID
- 6026
- Generators
- 2
- Technology
- Nuclear
- Net generation (2024)
- 19,508 GWh
- Capacity factor (2024, EIA nameplate)
- 95%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 41.2455, -88.6691
LASALLE GENERATING STATION, a 2,340 MW Nuclear power plant in LaSalle County, Illinois. Operated by EXELON NUCLEAR, commissioned 1984.
How LASALLE GENERATING STATION compares
With 2,340 MW of capacity, LASALLE GENERATING STATION ranks 3rd among the 158 operating power plants Bywatts maps in Illinois and 3rd of the 6 operating Nuclear plants in the state. It accounts for about 19% of Illinois's operating Nuclear capacity and 5.7% of all operating capacity in the state. Nationally it is the 13th-largest of the 55 operating Nuclear plants in the database. Commissioned in 1984, it is older than 77% of the 150 operating Illinois plants with a recorded commissioning year. Its operator, EXELON NUCLEAR, runs 6 operating plants in Illinois totaling 12,415 MW. It shares LaSalle County with 4 other operating plants, including GRAND RIDGE WIND ENERGY CENTER and PERU.
EIA-860 lists 2 generators at the site with 2,340 MW of nameplate capacity, all nuclear technology. Net generation was 19,508 GWh in 2024 (a 95% capacity factor), up 2% from 2022.
Grid neighborhood
The nearest named substation is LA SALLE (345 kV), about 0.2 miles away; the closest transmission line found within 10 miles is a 345 kV line, under 0.1 miles away. Another 10 operating power plants totaling 5,498 MW sit within 25 miles; the largest is BRAIDWOOD GENERATION STATION (2,450 MW, Nuclear).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
LASALLE GENERATING STATION is a 2,340 MW nuclear power plant in LaSalle County, IL, operated by EXELON NUCLEAR, commissioned in 1984. LaSalle County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.8 of 5 at the 19th national percentile. Earthquake is the leading peril, rated Relatively Low by FEMA at the 66th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a nuclear plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
LaSalle County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively Low | 66th | 3.6 of 5 | <0.01 |
| Riverine flooding | Relatively Moderate | 62nd | 3.5 of 5 | 2.0 |
| Tornado | Relatively Moderate | 44th | 2.8 of 5 | 1.1 |
| Strong wind | Relatively High | 40th | 2.6 of 5 | 5.9 |
| Ice storm | Relatively Moderate | 35th | 2.4 of 5 | 0.70 |
| Hail | Relatively Low | 33rd | 2.3 of 5 | 4.1 |
| Lightning | Relatively Moderate | 27th | 2.1 of 5 | 44.0 |
| Heat wave | Relatively Low | 25th | 2.0 of 5 | 4.4 |
| Wildfire | Very Low | 24th | 2.0 of 5 | <0.01 |
| Winter weather | Relatively Moderate | 24th | 1.9 of 5 | 15.1 |
| Hurricane | Very Low | 9th | 1.4 of 5 | 0.01 |
Perils not assessed in LaSalle 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 LaSalle 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.