Bishop Hill II Wind Farm — United States of America
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 80k homes. It ranks #3033 of 10,884 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0058111.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Capacity provenance
The public capacity above is the current source-record value. A 2026 tracker candidate lists 424 MW for Bishop Hill wind farm, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000906886; fuel: WRI GPPD
In context: how this plant compares
At 81 MW, Bishop Hill II Wind Farm is well above the median wind plant in United States of America (67.7 MW). Wind turbines convert moving air into electricity; output is variable and site-dependent, and modern turbines deliver some of the lowest-cost new generation on many grids.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Load factor
- 39%, from 280 GWh of reported generation; the median for 1120 wind plants in United States of America that report generation is 30%
- Generation trend
- 270 GWh in 2013 and 280 GWh in 2019 (+3%)
- Highest and lowest year
- 2017: 305 GWh; 2018: 258 GWh
- Share of United States of America wind capacity
- less than 0.1% of 104,873 MW across 1,139 plants in this dataset
- Age among peers
- 602 of 1,139 dated wind plants in United States of America are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Reported generation trend
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.
Monthly mean temperature
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.
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.
Site climate & environmental severity
This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #512 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 104,873 MW of capacity.
Nearby power plants
- Bishop Hill Energy LLC · Wind · 200 MW · Illinois
- Bishop Hill III · Wind · 119 MW · Illinois
- Geneseo · Gas · 33.6 MW · Illinois
- Riverside · Gas · 136 MW · Illinois
- Riverside (IA) power station · Coal · 136 MW · Illinois
- Sears Hydroelectric Plant · Hydro · 1.4 MW · Illinois
Location
Coordinates 41.2325, -90.1742 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Bishop Hill II Wind Farm?
Bishop Hill II Wind Farm is a 81 MW wind power plant in Illinois, United States of America, commissioned in 2012.
How much electricity does Bishop Hill II Wind Farm generate?
Bishop Hill II Wind Farm generates about 280 GWh of electricity per year.
Who operates Bishop Hill II Wind Farm?
Bishop Hill II Wind Farm is operated by Bishop Hill Energy II LLC.