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Windy Flats Wind Project

Wind power plant in Washington, United States of America. Approximate location 45.7269, -120.8339.

WindWashingtonUnited States of America

Windy Flats Wind Project is a 262 MW wind power station in Washington, United States of America. It is operated by Windy Flats Partners LLC. Based on reported annual generation of 612 GWh, it can supply roughly 174,828 homes. It ranks #1049 of 9,833 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).

262MW installed capacity
612GWh reported / yr
174,828homes powered
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057159.

Reported generation trend

2013: 704 GWh20132014: 657 GWh20142015: 622 GWh20152016: 664 GWh20162017: 566 GWh20172018: 674 GWh20182019: 612 GWh2019704 GWh

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

Owner

Operated by Windy Flats Partners LLC.

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 45.7°N — which shapes how much energy it can produce and how its output varies through the year.

10.2°Cannual mean temp
3,004heating degree-days (base 18°C)
163cooling degree-days (base 18°C)
430 melevation

Monthly mean temperature

J: 0 °CJF: 3 °CFM: 6 °CMA: 9 °CAM: 13 °CMJ: 17 °CJJ: 21 °CJA: 21 °CAS: 16 °CSO: 11 °CON: 4 °CND: 0 °CD21 °C

Heating degree-days here run 22% 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: 63/100 — this site sits in the mid 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 #59 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 45.7269, -120.8339 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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