Mystic
2065 W. Rosebud Road, Fishtail, MT 59028Plant Summary Information
Mystic is ranked #46 out of 71 power plants in Montana in terms of total annual net electricity generation.
Mystic is comprised of 2 generators and generated 13.7 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Mystic |
|---|---|
| Utility Name | NorthWestern Energy (MT Hydro) |
| Location | Stillwater County, MT |
| Initial Operation Date | May 1925 |
| Last Update | Dec 2025 |
| Annual Generation | 52.5 GWh |
| Annual Consumption | 187.3 k MMBtu |
| Ranked #4,151 out of 13,081 Power Plants Nationwide | |
| Ranked #462 out of 1,311 Water Power Plants Nationwide | |
| Ranked #46 out of 71 Montana Power Plants | |
| Ranked #17 out of 23 Montana Water Power Plants | |
| Fuel Types | Water |
| Previous Operators |
PPL Montana LLC (2013 to 2013) NorthWestern Energy (2014 to 2020) NorthWestern Energy (MT hdro) (2021 to 2021) NorthWestern Energy (MT Hydro) (2022 to 2025) |
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Monthly Net Generation for Mystic
Monthly Plant Fuel Consumption for Mystic
Mystic Details
| Summary Information | |
|---|---|
| Plant Name | Mystic (2192) |
| Plant Address | 2065 W. Rosebud Road, Fishtail, MT 59028 |
| Utility | NorthWestern Energy (MT Hydro) (13902) |
| Latitude, Longitude | 45.22574, -109.76249 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | May 1925 |
| Annual Generation | 52.5 GWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | Yes |
| FERC Exempt Wholesale Generator Docket Number | 99-185-000 |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | WECC |
| Balancing Authority | NorthWestern Energy (NWMT) (NWMT) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Mystic Lake |
| Ash Impoundment | No |
| Transmission / Distribution Owner | NorthWestern Energy LLC - (MT) (12825) MT |
| Grid Voltage | 50.00 kV |
| Energy Storage | No |
Generator MYS1 Details Operating May 1925
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | NA |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | NA |
| Nameplate Capacity | 6 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 6 MW |
| Winter Capacity | 6 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | May 1925 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
Generator MYS2 Details Operating May 1925
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | NA |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | NA |
| Nameplate Capacity | 6 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 6 MW |
| Winter Capacity | 6 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | May 1925 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
Mystic Plant Owners
| Owner Name | Address | Generator | 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 Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #452 | Prospect | Prospect, NY | 55.2 GWh |
| #453 | Stockton Hydro | Stockton, MO | 54.7 GWh |
| #454 | Stone Creek | Estacada, OR | 54.4 GWh |
| #455 | Tesla | Colorado Springs, CO | 53.9 GWh |
| #456 | Hennepin Island | Minneapolis, MN | 53.9 GWh |
| #457 | Cedar Falls (WA) | North Bend, WA | 53.6 GWh |
| #458 | Victoria Dam | Rockland, MI | 53.6 GWh |
| #459 | Parr Hydro | Jenkinsville, SC | 53.3 GWh |
| #460 | Cooper Lake | Cooper Landing, AK | 52.5 GWh |
| #461 | Sheldon Springs Hydroelectric | Sheldon Springs, VT | 52.5 GWh |
| #463 | Soda Springs | Idleyld Park, OR | 51.9 GWh |
| #464 | Shoshone Falls | Twin Falls, ID | 51.9 GWh |
| #465 | Upper Gorge | Bishop, CA | 51.9 GWh |
| #466 | Thousand Springs | Wendell, ID | 51.8 GWh |
| #467 | Pontook Hydro Facility | Dummer, NH | 50.9 GWh |
| #468 | French Meadows | Foresthill, CA | 50.8 GWh |
| #469 | Johnson 1 | Elwood, NE | 50.8 GWh |
| #470 | Deer Rips | Auburn, ME | 50.8 GWh |
| #471 | Nimbus | Folsom, CA | 50.6 GWh |
| #472 | E J West | Lake Luzerne, NY | 50.3 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Mystic.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Beaver Creek Wind Facility | Big Timber, MT | 531.1 GWh | 52.1 mi |
| Big Timber Wind Farm | Big Timber, MT | 79.2 GWh | 43.9 mi |
| Buffalo Bill | Cody, WY | 57.5 GWh | 57.4 mi |
| Elk Basin Gasoline Plant | Powell, WY | 6.3 GWh | 47.9 mi |
| Garland Canal Power Plant | Powell, WY | 10.0 GWh | 55.8 mi |
| Heart Mountain | Cody, WY | 16.1 GWh | 58.1 mi |
| Lake (WY) | Yellowstone, WY | 96.0 MWh | 68.7 mi |
| MTSUN | Billings, MT | 126.9 GWh | 71.1 mi |
| Musselshell Wind Project | Shawmut, MT | 23.1 GWh | 73.8 mi |
| Musselshell Wind Project Two LLC | Shawmut, MT | 26.5 GWh | 73.8 mi |
| Old Faithful | Yellowstone, WY | 203.0 MWh | 74.9 mi |
| Pryor Mountain Wind | Bridger, MT | 724.7 GWh | 52.2 mi |
| River Bend Solar, LLC (MT) | Reed Point, MT | 3.1 GWh | 34.4 mi |
| Shoshone (WY) | Cody, WY | 17.1 GWh | 57.5 mi |
| South Dry Creek Hydro | Red Lodge, MT | 696.0 MWh | 29.1 mi |
| Spirit Mountain | Cody, WY | 16.1 GWh | 58.2 mi |
| Stillwater Wind, LLC | Reed Point, MT | 269.2 GWh | 46.3 mi |
| Two Dot Wind Broadview East LLC | Broadview, MT | 4.2 GWh | 76.2 mi |
| Western Sugar Cooperative - Billings | Billings, MT | 3.0 GWh | 71.6 mi |
| Yellowstone County Generating Station | Laurel, MT | 400.1 GWh | 57.1 mi |