Home / North America / United States of America / Big Horn Wind Project

Big Horn Wind Project

Wind power plant in Washington, United States of America. Approximate location 45.8877, -120.2896.

WindWashingtonUnited States of America

Big Horn Wind Project is a 199 MW wind power station in Washington, United States of America. It is operated by Avangrid Renewables LLC. Based on reported annual generation of 447 GWh, it can supply roughly 127,628 homes. It ranks #1297 of 9,833 United States of America power plants by installed capacity. Commissioned in 2006, it is around 20 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).

199MW installed capacity
447GWh reported / yr
127,628homes powered
2006commissioned (~20 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0056361.

Reported generation trend

2013: 503 GWh20132014: 517 GWh20142015: 432 GWh20152016: 503 GWh20162017: 468 GWh20172018: 511 GWh20182019: 447 GWh2019517 GWh

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

Owner

Operated by Avangrid Renewables LLC. 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 Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 45.9°N — which shapes how much energy it can produce and how its output varies through the year.

8.9°Cannual mean temp
3,417heating degree-days (base 18°C)
106cooling degree-days (base 18°C)
740 melevation

Monthly mean temperature

J: -1 °CJF: 1 °CFM: 5 °CMA: 8 °CAM: 12 °CMJ: 16 °CJJ: 20 °CJA: 20 °CAS: 15 °CSO: 10 °CON: 3 °CND: -1 °CD20 °C

Heating degree-days here run 39% 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: 74/100 — this site sits in the top third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

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.

How it compares & nearby plants

The #185 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 104,477 MW of capacity.

Nearby power plants

Location

Coordinates 45.8877, -120.2896 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Built from open public data; no personal information. Operate this site? Request a correction or removal.