Judith Gap Wind Energy Center
1030 US Highway 191 N, Harlowton, MT 59036Plant Summary Information
Judith Gap Wind Energy Center is ranked #17 out of 71 power plants in Montana in terms of total annual net electricity generation.
Judith Gap Wind Energy Center generated 166.3 GWh during the 3-month period between November 2025 to February 2026.
| Plant Name | Judith Gap Wind Energy Center |
|---|---|
| Utility Name | Invenergy Services LLC |
| Location | Wheatland County, MT |
| Initial Operation Date | December 2005 |
| Last Update | Feb 2026 |
| Annual Generation | 422.3 GWh |
| Annual Consumption | 1.6 M MMBtu |
| Ranked #1,548 out of 12,637 Power Plants Nationwide | |
| Ranked #438 out of 1,376 Wind Power Plants Nationwide | |
| Ranked #17 out of 71 Montana Power Plants | |
| Ranked #5 out of 23 Montana Wind Power Plants | |
| Fuel Types | Wind |
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Monthly Net Generation for Judith Gap Wind Energy Center
Monthly Plant Fuel Consumption for Judith Gap Wind Energy Center
Judith Gap Wind Energy Center Details
| Summary Information | |
|---|---|
| Plant Name | Judith Gap Wind Energy Center (56377) |
| Plant Address | 1030 US Highway 191 N, Harlowton, MT 59036 |
| Utility | Invenergy Services LLC (49893) |
| Latitude, Longitude | 46.5725, -109.7531 |
| Generation Dates on File | Jan 2006 to Feb 2026 |
| Initial Operation Date | December 2005 |
| Annual Generation | 422.3 GWh |
| Fuel Types | Wind |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | NorthWestern Energy (NWMT) (NWMT) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | |
| Ash Impoundment | No |
| Transmission / Distribution Owner | NorthWestern Energy LLC - (MT) (12825) MT |
| Grid Voltage | 230.00 kV |
| Energy Storage | No |
Generator 1 Details Operating December 2005
| Technology | Onshore Wind Turbine |
|---|---|
| Prime Mover | Wind Turbine, Onshore |
| Ownership | Single Owner |
| Nameplate Capacity | 135 MW |
| Summer Capacity | 135 MW |
| Winter Capacity | 135 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | December 2005 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Wind |
| Turbines/Hydrokinetic Buoys | 90 |
| Multiple Fuels | No |
| Turbine Details | |
| Number Of Turbines | 90 |
|---|---|
| Predominant Turbine Manufacturer | GE |
| Predominant Turbine Model Number | 1.5 SLE |
| Design Wind Speed | 19 MPH |
| Wind Quality Class | 2 - Medium Wind |
| Turbine Hub Height Feet | 263 |
Judith Gap Wind Energy Center Plant Owners
| Owner Name | Address | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Wind.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #428 | Los Vientos Windpower IV | Rio Grande City, TX | 431.9 GWh |
| #429 | Glass Sands Wind Facility | Sulphur, OK | 431.8 GWh |
| #430 | Day County Wind LLC | Conde, SD | 429.9 GWh |
| #431 | Cactus Flats Wind Energy Project | Eden, TX | 429.1 GWh |
| #432 | Glen Ullin Energy Center | Glen Ullin, ND | 426.2 GWh |
| #433 | Fowler Ridge IV Wind Farm LLC | Fowler, IN | 426.2 GWh |
| #434 | Whispering Willow Wind Farm - East | Iowa Falls, IA | 425.2 GWh |
| #435 | Bishop Hill III | Cambridge, IL | 423.1 GWh |
| #436 | Lindahl Wind Project, LLC | Tioga, ND | 422.5 GWh |
| #437 | Ocotillo Express LLC | Ocotillo, CA | 422.4 GWh |
| #439 | Rattlesnake Flat | Ritzville, WA | 420.7 GWh |
| #440 | Sunflower Wind Project | Mandan, ND | 419.9 GWh |
| #441 | Heartland Divide Wind Project, LLC | Melville, IA | 417.4 GWh |
| #442 | Leaning Juniper Wind Power II | Arlington, OR | 416.6 GWh |
| #443 | Callahan Divide Wind Energy Center | Tusocola, TX | 414.3 GWh |
| #444 | Smoky Hills Wind Project Phase II | Lincoln, KS | 414.3 GWh |
| #445 | Los Vientos Wind 1A | Sebastian, TX | 414.0 GWh |
| #446 | Senate Wind LLC | Bryson, TX | 413.7 GWh |
| #447 | Morning Light Wind Farm | Adair, IA | 413.3 GWh |
| #448 | Post Oak Wind LLC | Abilene, TX | 409.8 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Judith Gap Wind Energy Center.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Beaver Creek Wind Facility | Big Timber, MT | 344.4 GWh | 44.3 mi |
| Big Timber Wind Farm | Big Timber, MT | 71.7 GWh | 49.8 mi |
| Broadwater Power Project | Toston, MT | 47.4 GWh | 84.9 mi |
| GCC Trident Solar Project | Three Forks, MT | 3.7 GWh | 92.8 mi |
| Gordon Butte Wind LLC | Martinsdale, MT | 72.8 GWh | 29.9 mi |
| Magpie Solar, LLC | Lavina, MT | 4.9 GWh | 43.4 mi |
| Morony | Great Falls, MT | 255.0 GWh | 93 mi |
| MTSUN | Billings, MT | 144.3 GWh | 74 mi |
| Musselshell Wind Project | Shawmut, MT | 23.1 GWh | 24.2 mi |
| Musselshell Wind Project Two LLC | Shawmut, MT | 26.5 GWh | 24.2 mi |
| Mystic | Fishtail, MT | 53.7 GWh | 93.1 mi |
| River Bend Solar, LLC (MT) | Reed Point, MT | 3.2 GWh | 60.7 mi |
| South Peak Wind | Geyser, MT | 265.2 GWh | 66.3 mi |
| Spion Kop Wind Farm | Geyser, MT | 110.8 GWh | 67.2 mi |
| Stillwater Wind, LLC | Reed Point, MT | 263.8 GWh | 50.6 mi |
| Two Dot Wind Broadview East LLC | Broadview, MT | 4.2 GWh | 55.6 mi |
| Two Dot Wind Farm | Two Dot, MT | 34.8 GWh | 18 mi |
| Western Sugar Cooperative - Billings | Billings, MT | 5.3 GWh | 81.9 mi |
| Yellowstone County Generating Station | Laurel, MT | 390.7 GWh | 79 mi |
| Yellowstone Energy LP | Billings, MT | 448.7 GWh | 82.3 mi |