MWPowerPlantFacts
PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/2192
EIA plant 2192

Fishtail · Stillwater · MT

Mystic

Operated by NorthWestern Energy (MT Hydro)

Annual generation53,734 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextNorthWestern Energy (NWMT)Balancing authority or NERC region

Published location

Where is Mystic?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

45.225741, -109.762489

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Map data © OpenStreetMap contributors

Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.

2024 monthly net generation

MonthNet generation
15,988 MWh
23,225 MWh
33,814 MWh
41,503 MWh
5677 MWh
65,878 MWh
78,731 MWh
87,264 MWh
94,971 MWh
104,505 MWh
114,737 MWh
122,441 MWh

Operating generators

IDTechnologyFuelMWStatus
MYS1Conventional HydroelectricWAT6OP
MYS2Conventional HydroelectricWAT6OP

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Identity, technology and limitations
EIA plant ID
2192
Sector
Electric Utility
Water source
Mystic Lake
Data edition
2024-final