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Passadumkeag Windpark LLC

Wind power plant in Maine, United States of America. Approximate location 45.07, -68.21.

WindMaineUnited States of America

Passadumkeag Windpark LLC is a 43 MW wind power plant in Maine, United States of America. It is operated by Southern Power Co. Based on reported annual generation of 144 GWh, it can supply roughly 41,171 homes. It ranks #2939 of 9,833 United States of America power plants by installed capacity. Commissioned in 2016, it is around 10 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).

43MW installed capacity
144GWh reported / yr
41,171homes powered
2016commissioned (~10 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0059222.

Reported generation trend

2016: 64 GWh20162017: 137 GWh20172018: 149 GWh20182019: 144 GWh2019149 GWh

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

Owner

Operated by Southern Power Co. 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 45.1°N — which shapes how much energy it can produce and how its output varies through the year.

5.8°Cannual mean temp
4,471heating degree-days (base 18°C)
57cooling degree-days (base 18°C)
149 melevation

Monthly mean temperature

J: -9 °CJF: -7 °CFM: -2 °CMA: 5 °CAM: 11 °CMJ: 16 °CJJ: 19 °CJA: 18 °CAS: 14 °CSO: 8 °CON: 2 °CND: -5 °CD19 °C

Heating degree-days here run 82% 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: 90/100 — 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 #663 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 45.07, -68.21 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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