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Bishop Hill II Wind Farm

Wind power plant in Illinois, United States of America. Approximate location 41.2325, -90.1742.

WindIllinoisUnited States of America

Bishop Hill II Wind Farm is a 81 MW wind power plant in Illinois, United States of America. It is operated by Bishop Hill Energy II LLC. Based on reported annual generation of 280 GWh, it can supply roughly 79,942 homes. It ranks #2190 of 9,833 United States of America power plants by installed capacity. Commissioned in 2012, it is around 14 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).

81MW installed capacity
280GWh reported / yr
79,942homes powered
2012commissioned (~14 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0058111.

Reported generation trend

2013: 270 GWh20132014: 300 GWh20142015: 290 GWh20152016: 282 GWh20162017: 305 GWh20172018: 258 GWh20182019: 280 GWh2019305 GWh

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

Owner

Operated by Bishop Hill Energy II LLC.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 41.2°N — which shapes how much energy it can produce and how its output varies through the year.

9.8°Cannual mean temp
3,361heating degree-days (base 18°C)
407cooling degree-days (base 18°C)
235 melevation

Monthly mean temperature

J: -6 °CJF: -3 °CFM: 3 °CMA: 10 °CAM: 16 °CMJ: 21 °CJJ: 24 °CJA: 22 °CAS: 18 °CSO: 12 °CON: 4 °CND: -3 °CD24 °C

Heating degree-days here run 37% 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: 73/100 — 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 #509 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 41.2325, -90.1742 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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