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Dempsey Ridge Wind Farm

Wind power plant in Oklahoma, United States of America. Approximate location 35.5298, -99.8145.

WindOklahomaUnited States of America

Dempsey Ridge Wind Farm is a 132 MW wind power station in Oklahoma, United States of America. It is operated by Acciona Wind Energy USA LLC. Based on reported annual generation of 344 GWh, it can supply roughly 98k homes. It ranks #2474 of 10,938 United States of America power plants by installed capacity. Commissioned in 2012, it is around 14 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 10.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

132Source-backed capacity
344GWh reported / yr
98,314homes powered
2012commissioned (~14 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0056665.

Data status

Known data

FacilityDempsey Ridge Wind Farm WRI
CountryUnited States of America · Oklahoma WRI
Coordinates35.5298, -99.8145 WRI
FuelWind WRI
MW installed capacity132 MW WRI source record; scope not independently normalised
OwnerAcciona Wind Energy USA LLC WRI
Commissioned2012 WRI
GWh reported / yr344 GWh/yr WRI

Calculated from dataset

Capacity rank in country#2474 of 10938 calculated
Fuel-specific rank in country#334 of 1139 calculated
Capacity vs country/fuel peers1.95× · 68 MW median · 1139 peers calculated
Homes-powered equivalent98,314 calculated from reported generation
Climate14.9°C · HDD 2,028 derived from coordinates
Environmental severityC3 · 37/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: Wikidata P2109 nameplate capacity; fuel: WRI source-record fuel

In context: how this plant compares

At 132 MW, Dempsey Ridge Wind Farm is well above the median wind plant in United States of America (68 MW). Wind turbines convert moving air into electricity; output is variable and site-dependent, and modern turbines deliver some of the lowest-cost new generation on many grids.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Reported generation trend

2013: 396 GWh20132014: 447 GWh20142015: 386 GWh20152016: 426 GWh20162017: 320 GWh20172018: 359 GWh20182019: 344 GWh2019447 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Acciona Wind Energy USA LLC.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 35.5°N — which shapes how much energy it can produce and how its output varies through the year.

14.9°Cannual mean temp
2,028heating degree-days (base 18°C)
931cooling degree-days (base 18°C)
651 melevation

Monthly mean temperature

J: 2 °CJF: 5 °CFM: 10 °CMA: 15 °CAM: 20 °CMJ: 24 °CJJ: 27 °CJA: 27 °CAS: 22 °CSO: 16 °CON: 8 °CND: 4 °CD27 °C

Heating degree-days here run 17% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 43/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
37/100environmental-severity index
25.5°Cseasonal temperature swing
827 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #334 largest wind power plant of 1139 in United States of America by capacity.

United States of America has 1139 wind power plants in this dataset, together about 104,873 MW of capacity.

Nearby power plants

Location

Coordinates 35.5298, -99.8145 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Dempsey Ridge Wind Farm?

Dempsey Ridge Wind Farm is a 132 MW source-record wind power plant in Oklahoma, United States of America, commissioned in 2012.

How much electricity does Dempsey Ridge Wind Farm generate?

Dempsey Ridge Wind Farm generates about 344 GWh of electricity per year.

How many homes can Dempsey Ridge Wind Farm power?

Its output is enough to supply roughly 98,314 homes.

Who operates Dempsey Ridge Wind Farm?

Dempsey Ridge Wind Farm is operated by Acciona Wind Energy USA LLC.

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