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Prices here are state averages across all utilities and rate plans, from the U.S. Energy Information Administration — not the rate on any one bill. Generation-mix figures are reported annually, not real time.

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NorthWestern Energy (MT wind/thermal)

Electric power plant operator — U.S. Energy Information Administration (Forms EIA-860/860M).

Power plants
4
Total nameplate capacity
459.8 MW
States
1
Generators
23

Capacity by technology

Natural Gas Internal Combustion Engine · 1 plant207 MW
Natural Gas Fired Combustion Turbine · 1 plant203.1 MW
Onshore Wind Turbine · 2 plants49.7 MW
PlantStateTechnologyCapacity
Yellowstone County Generating StationMTNatural Gas Internal Combustion Engine207 MW
Dave Gates Generating StationMTNatural Gas Fired Combustion Turbine203.1 MW
Spion Kop Wind FarmMTOnshore Wind Turbine40 MW
Two Dot Wind FarmMTOnshore Wind Turbine9.7 MW

Source: U.S. Energy Information Administration, Forms EIA-860/EIA-860M — currently operating generators, aggregated to plant then to operator.

NorthWestern Energy (MT wind/thermal) — Power Plants & Capacity | EnergyAtlasUSA