Preliminary 2025 facility recordOperating

Geyser, MT · EIA plant 58218

Spion Kop Wind Farm

Spion Kop Wind Farm is a wind power facility in Geyser, MT, with 40 MW of operating capacity.

Operating capacity40 MW1 operating generators
Proposed capacity0 MW0 proposed generators
UtilityNorthWestern Energy (MT wind/thermal)EIA-reported operator
Balancing authorityNWMTNorthWestern Energy (NWMT)

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Wind40 MW
ProposedNo proposed capacity reported
Reported technologiesOnshore Wind Turbine

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source