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225 MW Wind operating in Ellis, OK — Southwest Power Pool
225 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2016
Operating Since
Coordinates
36.1750, -99.5820
County
Ellis, OK
Nearby Plants
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 | EDF Renewable Asset Holdings, Inc. | EDF Renewables | — |
| Owner(s) | EDF Renewable Asset Holdings, Inc. | EDF Renewables; Alliant Energy Corp | — |
| Status | Operating | operating | — |
GEM identifies the owner as EDF Renewables; Alliant Energy Corp
This entity is not yet in the GEM ownership database — chain unavailable.
Great Western Wind Energy, LLC is a 225 MW wind power plant located in Ellis County, Oklahoma. The facility began operating in 2016 and is owned and operated by EDF Renewable Asset Holdings, Inc. The plant utilizes a single generator consisting of multiple onshore wind turbines. It is interconnected to the Southwest Power Pool (SPP) balancing authority and resides within the Midwest Reliability Organization (MRO) NERC region.
The plant's wind turbines have a hub height of 91.5 meters and a rotor diameter of 100 meters. The turbines were manufactured by Vestas, model V100-2.0. In its most recent year of operation, Great Western Wind Energy generated 884,804 MWh of electricity, achieving a capacity factor of 44.9%. The plant is ranked as the 20th largest wind farm in Oklahoma out of 57, and 213th nationally out of 734.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
80.0K MWh
Latest Month
884.8K MWh
Annual Generation
44.9%
Capacity Factor
2016
$1,611/kW
Est. Construction Cost
Total estimated cost: $362.5M
Point of Interconnection
Nearest Substation
Great Western Substation · 345 kV
Substation Distance
0 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
OKGE.GGWT.GREATWESTERN
Pricing Hub
SPP South Hub
Location Type
Settlement Location
Node Source
Curated node match
Last updated 2026-03-14
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ask pi about Great Western Wind Energy, LLCSouthwest Power Pool (SWPP)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP