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189 MW Wind operating in Toole, MT
189 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Coordinates
48.8203, -112.1033
County
Toole, MT
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | NaturEner Rim Rock Energy LLC | Acciona | — |
| Owner(s) | NaturEner Rim Rock Energy LLC | NaturEner | — |
| Status | Operating | operating | — |
GEM identifies the owner as NaturEner
This entity is not yet in the GEM ownership database — chain unavailable.
Rim Rock Wind Farm is located near Cut Bank, Montana. Owned by NaturEner, this $370 million, 189 megawatt (MW) wind farm has been operational since 2012, and is Montana's largest wind-producing facility to be built in a single phase.
Read more on WikipediaNaturEner Rim Rock Energy is a 189 MW wind power plant located in Toole County, Montana. The plant began operating in 2012 and is owned and operated by NaturEner Rim Rock Energy LLC. It utilizes a single generator consisting of onshore wind turbine technology. The facility ranks as the 6th largest of 11 wind plants in Montana, and 381st nationally out of 734 wind plants.
The plant's turbines are manufactured by Acciona, model AW77/1500, with a rotor diameter of 77 meters and a hub height of 80 meters. In the most recent year of data, the plant generated 525,495 MWh of electricity, achieving a capacity factor of 31.7%. The balancing authority for the plant is NaturEner Wind Watch, LLC, and it is located within the WECC NERC region.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
NaturEner Wind Watch, LLC (WWA)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
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.
66.6K MWh
Latest Month
525.5K MWh
Annual Generation
31.7%
Capacity Factor
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2013
$1,895/kW
Est. Construction Cost
Total estimated cost: $358.2M
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This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not 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 2026-03-26
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