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Kahuku Wind Power LLC

Wind power plant in Hawaii, United States of America. Approximate location 21.681, -157.975.

WindHawaiiUnited States of America

Kahuku Wind Power LLC is a 30 MW wind power plant in Hawaii, United States of America. It is operated by First Wind O&M LLC. Based on reported annual generation of 54 GWh, it can supply roughly 15,485 homes. It ranks #3285 of 9,833 United States of America power plants by installed capacity. Commissioned in 2011, it is around 15 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).

30MW installed capacity
54GWh reported / yr
15,485homes powered
2011commissioned (~15 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057087.

Reported generation trend

2013: 0 GWh20132014: 68 GWh20142015: 79 GWh20152016: 90 GWh20162017: 71 GWh20172018: 75 GWh20182019: 54 GWh201990 GWh

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

Owner

Operated by First Wind O&M 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 tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 21.7°N — which shapes how much energy it can produce and how its output varies through the year.

21.7°Cannual mean temp
0heating degree-days (base 18°C)
1,342cooling degree-days (base 18°C)
341 melevation

Monthly mean temperature

J: 20 °CJF: 20 °CFM: 20 °CMA: 21 °CAM: 21 °CMJ: 22 °CJJ: 23 °CJA: 23 °CAS: 24 °CSO: 23 °CON: 22 °CND: 21 °CD24 °C

Heating degree-days here run 100% below 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: 13/100 — this site sits in the bottom 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 #714 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 21.681, -157.975 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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