OGLESBY
Retired 2013Natural Gas power plant
- Capacity
- 70 MW
- Primary fuel
- Natural Gas
- County
- LaSalle County
- Operator
- DYNEGY MIDWEST GENERATION INC
- EIA plant ID
- 894
- Coordinates
- 41.2897, -89.0725
OGLESBY, a retired 70 MW Natural Gas power plant in LaSalle County, Illinois. It was retired in 2013, according to EIA-860.
How OGLESBY compares
It was retired in 2013 according to EIA-860, so it is not counted in Illinois's operating fleet. It shares LaSalle County with 5 other operating plants, including LASALLE GENERATING STATION and GRAND RIDGE WIND ENERGY CENTER.
Grid neighborhood
The nearest named substation is LA SALLE (345 kV), about 21.4 miles away; the closest transmission line found within 10 miles is a 138 kV line, under 0.1 miles away. Another 6 operating power plants totaling 2,648 MW sit within 25 miles; the largest is LASALLE GENERATING STATION (2,340 MW, Nuclear).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860 retirement records; distances are straight-line. Sources and methodology
Weather peril exposure
OGLESBY is a retired 70 MW natural gas power plant in LaSalle County, IL, formerly operated by DYNEGY MIDWEST GENERATION INC. 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 natural gas 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.