Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
40 MW Wind operating in Judith Basin, MT
40 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
See the full risk decomposition + scenarios for this asset.
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | NorthWestern Energy (MT wind/thermal) | NorthWestern Energy Group | — |
| Owner(s) | NorthWestern Energy (MT wind/thermal) | NorthWestern Energy Group | — |
| Status | Operating | operating | — |
Spion Kop Wind Farm is a 40 MW wind power facility located in Judith Basin County, Montana. The plant, which began operating in 2012, utilizes a single onshore wind turbine generator. The primary fuel source is wind (WND). The facility is owned and operated by NorthWestern Energy Group, specifically NorthWestern Energy (MT wind/thermal), and falls within the NorthWestern Energy (NWMT) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. The wind turbine has a hub height of 80 meters and a rotor diameter of 82.5 meters. The turbine was manufactured by GE Wind and is model GE1.6-82.5.
In the most recent year of data, Spion Kop Wind Farm generated 110,819 MWh, achieving a capacity factor of 31.6%. The plant's installed cost was $2,153.66 per kW, according to FERC data. Spion Kop Wind Farm ranks as the 15th largest wind farm out of 25 in Montana, and 980th out of 1424 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
NorthWestern Energy (NWMT) (NWMT)
Grid Voltage
100.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
14.3K MWh
Latest Month
110.8K MWh
Annual Generation
31.6%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this asset.
Wind · NorthWestern Corporation · Data from 2015–2024
$2,154/kW
Installed Cost
$1/kW
Annual CapEx
$19.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this asset.
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-05-31
View all articlesNo Ask reports yet for this entity.
Ask about Spion Kop Wind FarmForward forecasts, scenario decomposition, and risk-decision tooling for this asset.