Beartooth Energy Storage LLC

PlannedBESS

Ranked #3 of 3 BESS plants in MT#411 of 837 nationally

50 MW BESS planned in Yellowstone, MT — NorthWestern Energy (NWMT)

EIA

50 MW

Nameplate Capacity

Generators

unit

Batteries

Technology

Planned: —

Planned Operation

Location

Coordinates

45.7843, -108.7178

County

Yellowstone, MT

Nearby Plants

MTSUN
Solar80 MW · 11.5 km
Yellowstone County Generating Station
Natural Gas207 MW · 14.2 km
Western Sugar Cooperative - Billings
Sub. Coal1.5 MW · 17.1 km

Ownership & Operator

Field	EIA	GEM	Wikidata
Operator	Beartooth Energy Storage, LLC	—	—
Owner(s)	Beartooth Energy Storage, LLC	—	—
Status	Planned	—	—

Ownership Chain

No GEM tracker match for this plant — ownership chain unavailable.

About

Beartooth Energy Storage LLC is a 50 MW battery energy storage system located in Yellowstone County, Montana. The facility is owned and operated by Beartooth Energy Storage, LLC. It consists of a single generator utilizing battery technology and has a primary fuel source designated as 'MWH', indicating it draws power from the grid for storage and subsequent discharge. The plant operates within the NorthWestern Energy (NWMT) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.

Beartooth Energy Storage is ranked as the 3rd largest energy storage facility in Montana, and 607th nationally out of 1205 similar facilities. The plant's operations and the broader energy storage industry have been the subject of at least one news article.

Generated from EIA, GEM, and public data sources

EIA Plant Profile

Engineering & Generators

Grid Context

NERC Region

WECC

Balancing Authority

NorthWestern Energy (NWMT)

Grid Voltage

100 kV

Regulatory Status

Entity Type