Twin Groves Wind Farm is a

wind farm A wind farm or wind park, also called a wind power station or wind power plant, is a group of wind turbines in the same location used Wind power, to produce electricity. Wind farms vary in size from a small number of turbines to several hundre ...

in the U.S. state of

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...

, near the villages of Arrowsmith, Saybrook, and Ellsworth in McLean County. It consists of 240 operating wind turbines. Each wind turbine stands 280 ft (80 m) tall and has three 120-foot-long (39 m) blades. The wind farm was constructed from 2007 to February 2008. Twin Groves was the largest utility-scale wind farm east of the

Mississippi River The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it f ...

upon completion.Later in 2008, the

Fowler Ridge Wind Farm The Fowler Ridge Wind Farm is a wind farm in Benton County, Indiana, near the city of Fowler, IN about northwest of Lafayette and northwest of Indianapolis. Fowler Ridge was originally developed in 2005 and 2006 by Orion Energy, LLC (Oakland, ...

in neighboring Indiana surpassed Twin Groves with 400 MW of installed

nameplate capacity Nameplate capacity, also known as the rated capacity, nominal capacity, installed capacity, or maximum effect, is the intended full-load sustained output of a facility such as a power station,

Description

The Twin Groves Wind Farm lies in eastern McLean County just east of Bloomington on

Illinois State Route 9 Illinois Route 9 (IL 9) is a cross-state, east–west rural state highway in the central part of the U.S. state of Illinois. It travels from Niota at the Fort Madison Toll Bridge, that crosses the Mississippi River into Iowa, eastward across ce ...

. The wind farm consists of 240

Vestas Vestas Wind Systems A/S is a Danish manufacturer, seller, installer, and servicer of wind turbines that was founded in 1945. The company operates manufacturing plants in Denmark, Germany, the Netherlands, Taiwan, India, Italy, Romania, the Uni ...

1.65 MW wind turbines and is owned and operated by

EDP Renewables North America EDP Renewables North America (former names: Zilkha Renewable Energy and Horizon Wind Energy) and its subsidiaries develop, construct, own, and operate wind farms and solar parks throughout North America. Headquartered in Houston, Texas, with 58 w ...

. Total cost of Twin Groves was approximately $700 million. The towers are spread out over of McLean County, near the villages of Arrowsmith, Ellsworth, and Saybrook. The current total capacity at Twin Groves Wind Farm is 398 megawatts. The site produces enough power to power about 120,000 homes, or approximately 1.3 billion

kilowatt hour A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a unit of energy: one kilowatt of power for one hour. In terms of SI derived units with special names, it equals 3.6 megajoules (MJ). Kilowatt-hours are a common bil ...

s annually.

Revenue

Between , or 1%, of the total 22,000 acres will be taken up by the turbines. Royalties are paid to owners of the land at $5,000 per wind turbine. The wind farm pays property taxes, of which Ridgeview School District will start collecting $300,000 a year, while Tri-Valley School District will collect between $200,000-$250,000 a year.

Future

With 240 wind turbines already generating power, the project owner is considering an additional 170 wind turbines, to bring the total number of turbines to 410. Test wind turbines are being placed in eastern McLean County to determine if additional wind turbines can be supported. If constructed, power capacity estimates for the wind farm increase from 396 megawatts to 680 megawatts.

Electricity production

References

External links

Video of turbines in action
(requires

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