Dempsey Ridge Wind Farm — Plant Summary
- EIA Plant ID
- 56665
- Capacity
- 132 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Roger Mills, OK
- Operating Since
- 2012
- Generators
- 1
- Operator
- Acciona Wind Energy USA LLC
- Parent Company
- Acciona
- Annual Generation
- 116,503 MWh
- Capacity Factor
- 10.0%
- Balancing Authority
- Southwest Power Pool
- ISO/RTO
- SPP
- NERC Region
- MRO
Dempsey Ridge Wind Farm
OperatingWind
Ranked #44 of 69 Wind plants in OK#580 of 1442 nationally
132 MW Wind operating in Roger Mills, OK — Southwest Power Pool
EIAGEMWD
132 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Location
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Acciona Wind Energy USA LLC | Acciona | — |
| Owner(s) | Acciona Wind Energy USA LLC | Acciona | — |
| Status | Operating | operating | — |
Ownership Chain
About
Dempsey Ridge Wind Farm is a 132 MW wind power facility located in Roger Mills County, Oklahoma. The plant began operating in 2012 and utilizes a single generator. The facility is owned and operated by Acciona Wind Energy USA LLC, a subsidiary of the Spanish company Acciona. It ranks as the 44th largest wind farm in Oklahoma out of 57, and 572nd nationally out of 734.
The wind farm's turbines are Gamesa G90-2.0 models, featuring a 90-meter rotor diameter and a hub height of 78 meters. In its most recent year of operation, Dempsey Ridge generated 116,503 MWh of electricity, achieving a capacity factor of 10.0%. The plant is located within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Southwest Power Pool
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
5.7K MWh
Latest Month
116.5K MWh
Annual Generation
10.0%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
SPP
LMP Node
DEMPSEY_RIDGE_WIND
Pricing Hub
SPP South Hub
Node Source
EIA-860 direct report
News & Articles (10)Beta
General
Spain’s ACCIONA powers up Laguna’s Kalayaan 2 wind farm with first turbine
Spanish renewable energy firm ACCIONA Energía has installed the first turbine at its 101-megawatt (MW) Kalayaan 2 Wind Farm in Laguna,...
Bilyonaryo Business News·3 days ago
Hazards·wildfire
Red Flag Warning: Harper; Woods; Alfalfa; Ellis; Woodward; Major; Roger Mills; Dewey; Custer; Beckham; Washita; Harmon
Red Flag Warning issued March 21 at 12:09PM CDT until March 22 at 9:00PM CDT by NWS Norman OK
Red Flag Warning (hazard)
NWS Norman OK·5 days ago
Hazards·wildfire
Red Flag Warning: Harper; Woods; Alfalfa; Ellis; Woodward; Major; Roger Mills; Dewey; Custer; Beckham; Washita; Harmon
Red Flag Warning issued March 21 at 12:09PM CDT until March 21 at 9:00PM CDT by NWS Norman OK
Red Flag Warning (hazard)
NWS Norman OK·5 days ago
Hazards·wildfire
Fire Weather Watch: Harper; Woods; Alfalfa; Ellis; Woodward; Major; Roger Mills; Dewey; Custer; Beckham; Washita; Harmon
The Fire Weather Watch has been replaced. Please see the latest information from NWS Norman OK on this developing situation.
Fire Weather Watch (hazard)
NWS Norman OK·6 days ago
Last updated 2026-03-26
View all 10 articles