High Plains

Wind power plant in Wyoming, United States of America. Approximate location 41.6751, -106.0111.

WindWyomingUnited States of America

High Plains is a 122 MW wind power station in Wyoming, United States of America. It is operated by PacifiCorp. Based on reported annual generation of 236 GWh, it can supply roughly 67k homes. It ranks #2557 of 10,938 United States of America power plants by installed capacity. Commissioned in 2009, it is around 17 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).

122Source-backed capacity
236GWh reported / yr
67,314homes powered
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057040.

Data status

Known data

FacilityHigh Plains WRI
CountryUnited States of America · Wyoming WRI
Coordinates41.6751, -106.0111 WRI
FuelWind WRI
MW installed capacity122 MW WRI source record; scope not independently normalised
OwnerPacifiCorp WRI
Commissioned2009 WRI
GWh reported / yr236 GWh/yr WRI

Calculated from dataset

Capacity rank in country#2557 of 10938 calculated
Fuel-specific rank in country#354 of 1139 calculated
Capacity vs country/fuel peers1.80× · 68 MW median · 1139 peers calculated
Homes-powered equivalent67,314 calculated from reported generation
Climate5.5°C · HDD 4,561 derived from coordinates
Environmental severityC2 · 28/100 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: GEM tracker 2026 (location L100000906960); fuel: WRI source-record fuel

In context: how this plant compares

At 122 MW, High Plains 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: 341 GWh20132014: 324 GWh20142015: 251 GWh20152016: 316 GWh20162017: 280 GWh20172018: 327 GWh20182019: 236 GWh2019341 GWh

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

Owner

Operated by PacifiCorp. All plants by this company →

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 41.7°N — which shapes how much energy it can produce and how its output varies through the year.

5.5°Cannual mean temp
4,561heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
2,185 melevation

Monthly mean temperature

J: -5 °CJF: -4 °CFM: 0 °CMA: 4 °CAM: 9 °CMJ: 14 °CJJ: 18 °CJA: 17 °CAS: 12 °CSO: 6 °CON: -1 °CND: -5 °CD18 °C

Heating degree-days here run 86% above 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: 91/100 — this site sits in the top 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
28/100environmental-severity index
23.2°Cseasonal temperature swing
1310 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 #354 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 41.6751, -106.0111 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is High Plains?

High Plains is a 122 MW source-record wind power plant in Wyoming, United States of America, commissioned in 2009.

How much electricity does High Plains generate?

High Plains generates about 236 GWh of electricity per year.

How many homes can High Plains power?

Its output is enough to supply roughly 67,314 homes.

Who operates High Plains?

High Plains is operated by PacifiCorp.

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