JUDITH GAP WIND ENERGY CENTER
OperatingWind power plant
- Capacity
- 135 MW
- Primary fuel
- Wind
- County
- Wheatland County
- Operator
- INVENERGY SERVICES LLC
- Status
- Operating
- Commissioned
- 2005
- EIA plant ID
- 56377
- Generators
- 1
- Technology
- Onshore Wind Turbine
- Net generation (2024)
- 415 GWh
- Capacity factor (2024, EIA nameplate)
- 35%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 46.5737, -109.7306
JUDITH GAP WIND ENERGY CENTER, a 135 MW Wind power plant in Wheatland County, Montana. Operated by INVENERGY SERVICES LLC, commissioned 2005.
How JUDITH GAP WIND ENERGY CENTER compares
With 135 MW of capacity, JUDITH GAP WIND ENERGY CENTER ranks 10th among the 48 operating power plants Bywatts maps in Montana and 2nd of the 10 operating Wind plants in the state. It accounts for about 21% of Montana's operating Wind capacity and 2.2% of all operating capacity in the state. Nationally it is the 163rd-largest of the 708 operating Wind plants in the database. Commissioned in 2005, it is newer than 52% of the 46 operating Montana plants with a recorded commissioning year. It shares Wheatland County with 3 other operating plants, including MUSSELSHELL WIND PROJECT and MUSSELSHELL WIND PROJECT TWO LLC.
EIA-860 lists 1 generator at the site with 135 MW of nameplate capacity, all onshore wind turbine technology. Net generation was 415 GWh in 2024 (a 35% capacity factor), down 18% from 2022.
Grid neighborhood
The nearest named substation is JUDITH GAP WIND FARM (230 kV), about 1.1 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by NORTHWESTERN ENERGY LLC - (MT), under 0.1 miles away. Another 2 operating power plants totaling 20 MW sit within 25 miles; the largest is MUSSELSHELL WIND PROJECT (10 MW, Wind).
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
JUDITH GAP WIND ENERGY CENTER is a 135 MW wind power plant in Wheatland County, MT, operated by INVENERGY SERVICES LLC, commissioned in 2005. Wheatland County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.1 of 5 at the 52nd national percentile. Riverine flooding is the leading peril, rated Very Low by FEMA at the 80th 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.
Wheatland County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Very Low | 80th | 4.2 of 5 | 0.32 |
| Wildfire | Very Low | 64th | 3.6 of 5 | <0.01 |
| Hail | Very Low | 63rd | 3.5 of 5 | 1.7 |
| Earthquake | Very Low | 50th | 3.0 of 5 | <0.01 |
| Heat wave | Very Low | 31st | 2.3 of 5 | 0.98 |
| Lightning | Relatively Low | 30th | 2.2 of 5 | 34.8 |
| Ice storm | Very Low | 21st | 1.8 of 5 | 0.01 |
| Tornado | Very Low | 19th | 1.7 of 5 | 0.11 |
| Winter weather | Relatively Low | 18th | 1.7 of 5 | 20.1 |
| Strong wind | Very Low | 8th | 1.3 of 5 | 0.67 |
Perils not assessed in Wheatland 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 |
|---|---|
| Hurricane | FEMA rating is "Not Applicable" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Wheatland 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.