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United States › Power plants › Hydroelectric plants › Montana

HYDROELECTRIC PLANTS

Mystic

Mystic is a 12.0 MW operating hydroelectric plant in Stillwater County, Montana, operated by NorthWestern Energy (MT Hydro).

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingMay 1925 (current stage)
  5. Closed (not yet reached)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
MYS1Conventional Hydroelectric6.0 MW OperatingMay 1925
MYS2Conventional Hydroelectric6.0 MW OperatingMay 1925

Plant details

Operator
NorthWestern Energy (MT Hydro)
Location
Stillwater County, Montana
Balancing authority
NWMT
Sector
Electric Utility
Capacity
Operating: 12.0 MW
First unit online
May 1925
EIA plant ID
2192

Location

45.2257, -109.7625

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem