ECOGROVE WIND LLC
OperatingWind power plant
- Capacity
- 101 MW
- Primary fuel
- Wind
- County
- Stephenson County
- Operator
- ACCIONA WIND ENERGY USA LLC
- Status
- Operating
- Commissioned
- 2009
- EIA plant ID
- 56805
- Generators
- 1
- Technology
- Onshore Wind Turbine
- Net generation (2024)
- 258 GWh
- Capacity factor (2024, EIA nameplate)
- 29%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 42.4327, -89.9063
ECOGROVE WIND LLC, a 101 MW Wind power plant in Stephenson County, Illinois. Operated by ACCIONA WIND ENERGY USA LLC, commissioned 2009.
How ECOGROVE WIND LLC compares
With 101 MW of capacity, ECOGROVE WIND LLC ranks 59th among the 158 operating power plants Bywatts maps in Illinois and 17th of the 27 operating Wind plants in the state. It accounts for about 2.8% of Illinois's operating Wind capacity and 0.2% of all operating capacity in the state. Nationally it is the 244th-largest of the 708 operating Wind plants in the database. Commissioned in 2009, it is newer than 82% of the 150 operating Illinois plants with a recorded commissioning year. It shares Stephenson County with one other operating plant, ADKINS ENERGY LLC.
EIA-860 lists 1 generator at the site with 101 MW of nameplate capacity, all onshore wind turbine technology. Net generation was 258 GWh in 2024 (a 29% capacity factor), down 2% from 2022.
Grid neighborhood
The nearest named substation is DARLINGTON (138 kV), about 19.4 miles away; the closest transmission line found within 10 miles is a 138 kV line owned by COMMONWEALTH EDISON CO, under 0.1 miles away. Another 2 operating power plants totaling 7 MW sit within 25 miles; the largest is ADKINS ENERGY LLC (5 MW). Within 50 miles is one mapped data center, SupraNet Communications Madison in Madison, about 48.5 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
ECOGROVE WIND LLC is a 101 MW wind power plant in Stephenson County, IL, operated by ACCIONA WIND ENERGY USA LLC, commissioned in 2009. Stephenson County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.2 of 5 at the 79th national percentile. Hail is the leading peril, rated Relatively Moderate by FEMA at the 83rd percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a wind plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Stephenson County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hail | Relatively Moderate | 83rd | 4.3 of 5 | 3.6 |
| Strong wind | Relatively High | 74th | 4.0 of 5 | 5.1 |
| Heat wave | Relatively Low | 68th | 3.7 of 5 | 4.7 |
| Tornado | Relatively Moderate | 67th | 3.7 of 5 | 0.48 |
| Lightning | Relatively Low | 60th | 3.4 of 5 | 39.7 |
| Ice storm | Relatively Moderate | 51st | 3.0 of 5 | 0.88 |
| Riverine flooding | Relatively Moderate | 49th | 3.0 of 5 | 1.3 |
| Earthquake | Very Low | 35th | 2.4 of 5 | <0.01 |
| Wildfire | Very Low | 29th | 2.2 of 5 | <0.01 |
| Winter weather | Relatively Low | 3rd | 1.1 of 5 | 15.9 |
| Hurricane | Very Low | 2nd | 1.1 of 5 | <0.01 |
Perils not assessed in Stephenson 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 Stephenson 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.