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United States › Power plants › Battery storage › Montana

BATTERY STORAGE

Beartooth Energy Storage LLC

Beartooth Energy Storage LLC is a 50.0 MW planned battery storage site in Yellowstone County, Montana, operated by Beartooth Energy Storage, LLC.

Plant statusIn planning
  1. Planning (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingTarget Dec 2027 (not yet reached)
  5. Closed (not yet reached)

Planned start of operation reported to EIA: Dec 2027.

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
BEAR1Batteries50 MW Regulatory approvals pendingTarget Dec 2027

Plant details

Operator
Beartooth Energy Storage, LLC
Location
Yellowstone County, Montana
Balancing authority
NWMT
Sector
IPP Non-CHP
Capacity
Planned: 50.0 MW
EIA plant ID
65407

Location

45.7843, -108.7178

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