Marengo Wind Plant

Wind power plant in Washington, United States of America. Approximate location 46.3747, -117.7772.

WindWashingtonUnited States of America

Marengo Wind Plant is a 211 MW wind power station in Washington, United States of America. It is operated by PacifiCorp. Based on reported annual generation of 235 GWh, it can supply roughly 67,057 homes. It ranks #1189 of 9,833 United States of America power plants by installed capacity. Commissioned in 2007, it is around 19 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).

211MW installed capacity
235GWh reported / yr
67,057homes powered
2007commissioned (~19 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0056466.

Reported generation trend

2013: 486 GWh20132014: 542 GWh20142015: 437 GWh20152016: 526 GWh20162017: 469 GWh20172018: 501 GWh20182019: 235 GWh2019542 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 Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 46.4°N — which shapes how much energy it can produce and how its output varies through the year.

9.7°Cannual mean temp
3,163heating degree-days (base 18°C)
156cooling degree-days (base 18°C)
697 melevation

Monthly mean temperature

J: 0 °CJF: 3 °CFM: 6 °CMA: 9 °CAM: 13 °CMJ: 17 °CJJ: 21 °CJA: 20 °CAS: 16 °CSO: 10 °CON: 4 °CND: 0 °CD21 °C

Heating degree-days here run 29% 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: 67/100 — 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 #103 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 46.3747, -117.7772 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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