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Top of the World Windpower Project

Wind power plant in Wyoming, United States of America. Approximate location 42.9258, -105.7872.

WindWyomingUnited States of America

Top of the World Windpower Project is a 200 MW wind power station in Wyoming, United States of America. It is operated by Duke Energy Top Of the World WindPower. Based on reported annual generation of 549 GWh, it can supply roughly 157k homes. It ranks #2042 of 10,938 United States of America power plants by installed capacity. Commissioned in 2010, it is around 16 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).

200Source-backed capacity
549GWh reported / yr
156,828homes powered
2010commissioned (~16 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057327.

Data status

Known data

FacilityTop of the World Windpower Project WRI
CountryUnited States of America · Wyoming WRI
Coordinates42.9258, -105.7872 WRI
FuelWind WRI
MW installed capacity200 MW WRI source record; scope not independently normalised
OwnerDuke Energy Top Of the World WindPower WRI
Commissioned2010 WRI
GWh reported / yr549 GWh/yr WRI

Calculated from dataset

Capacity rank in country#2042 of 10938 calculated
Fuel-specific rank in country#180 of 1139 calculated
Capacity vs country/fuel peers2.95× · 68 MW median · 1139 peers calculated
Homes-powered equivalent156,828 calculated from reported generation
Climate7.8°C · HDD 3,883 derived from coordinates
Environmental severityC1 · 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 200 MW, Top of the World Windpower Project 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: 641 GWh20132014: 641 GWh20142015: 570 GWh20152016: 627 GWh20162017: 615 GWh20172018: 542 GWh20182019: 549 GWh2019641 GWh

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

Owner

Operated by Duke Energy Top Of the World WindPower.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 42.9°N — which shapes how much energy it can produce and how its output varies through the year.

7.8°Cannual mean temp
3,883heating degree-days (base 18°C)
183cooling degree-days (base 18°C)
1,606 melevation

Monthly mean temperature

J: -4 °CJF: -2 °CFM: 2 °CMA: 6 °CAM: 12 °CMJ: 17 °CJJ: 21 °CJA: 20 °CAS: 15 °CSO: 8 °CON: 1 °CND: -3 °CD21 °C

Heating degree-days here run 58% 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: 83/100 — 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 benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
37/100environmental-severity index
25.4°Cseasonal temperature swing
1178 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 #180 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 42.9258, -105.7872 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Top of the World Windpower Project?

Top of the World Windpower Project is a 200 MW source-record wind power plant in Wyoming, United States of America, commissioned in 2010.

How much electricity does Top of the World Windpower Project generate?

Top of the World Windpower Project generates about 549 GWh of electricity per year.

How many homes can Top of the World Windpower Project power?

Its output is enough to supply roughly 156,828 homes.

Who operates Top of the World Windpower Project?

Top of the World Windpower Project is operated by Duke Energy Top Of the World WindPower.

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