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207 MW Natural Gas operating in Yellowstone, MT — NorthWestern Energy (NWMT)
207 MW
Nameplate Capacity
18
Generators
units
Natural Gas Internal Combustion Engine
Technology
2024
Operating Since
Coordinates
45.6599, -108.7608
County
Yellowstone, MT
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | NorthWestern Energy (MT wind/thermal) | — | — |
| Owner(s) | NorthWestern Energy (MT wind/thermal) | — | — |
| Status | Operating | — | — |
Yellowstone County Generating Station is a 207 MW natural gas-fired power plant located in Yellowstone County, Montana. The facility, which began operating in 2024, is owned and operated by NorthWestern Energy (MT wind/thermal). It utilizes 18 natural gas internal combustion engine generators. The plant is within the NorthWestern Energy (NWMT) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In its most recent year of operation, the Yellowstone County Generating Station produced 383,412 MWh of electricity, achieving a capacity factor of 21.2%. The plant's installed cost was $1,648.01 per kW, according to FERC data. The Yellowstone County Generating Station is ranked as the largest of 3 natural gas plants in Montana and 741st out of 945 similar plants nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
30.0K MWh
Latest Month
383.4K MWh
Annual Generation
21.2%
Capacity Factor
Gas turbine · NorthWestern Corporation · Data from 2024
$1,648/kW
Installed Cost
$49.6/MWh
Operating Cost
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
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ask pi about Yellowstone County Generating StationNorthWestern Energy (NWMT) (NWMT)
Grid Voltage
100.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility