290 MW Wind operating in Gilliam, OR — Bonneville Power Administration
290 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Coordinates
45.5855, -120.0082
County
Gilliam, OR
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Caithness Shepherds Flat LLC | — | — |
| Owner(s) | Caithness Shepherds Flat LLC | — | — |
| Status | Operating | — | — |
Horseshoe Bend Wind LLC is a 290 MW wind power plant located in Gilliam County, Oregon. The plant began operating in 2012 and is owned and operated by Caithness Shepherds Flat LLC. It utilizes a single generator consisting of onshore wind turbines. The facility is interconnected to the Bonneville Power Administration balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
The wind farm's turbines have a hub height of 85 meters and a rotor diameter of 127 meters. The turbines were manufactured by GE Wind, model GE2.75-127. In the most recent year of data, the plant generated 591,702 MWh, achieving a capacity factor of 23.2%. Horseshoe Bend Wind is ranked as the 4th largest wind farm out of 17 in the state of Oregon, and 127th out of 734 nationally.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Bonneville Power Administration
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
54.7K MWh
Latest Month
591.7K MWh
Annual Generation
23.2%
Capacity Factor
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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