Roscoe Wind Farm

Last updated
Roscoe Wind Farm
Roscoe Wind Farm at Sunrise.JPG
Roscoe Wind Farm at sunrise
CountryUnited States
Location Texas
Coordinates 32°15′52″N100°20′39″W / 32.26444°N 100.34417°W / 32.26444; -100.34417 Coordinates: 32°15′52″N100°20′39″W / 32.26444°N 100.34417°W / 32.26444; -100.34417
Commission date 2009
Construction cost>US$1 billion
Owner(s) E.ON
Wind farm
Type Onshore
Rated wind speed17 mph (27 km/h)
Power generation
Units operational627
Nameplate capacity 781.5 MW
Capacity factor 31.7% (average 2011-2017)
Annual net output 2,174  GW⋅h (7,830  TJ)

The Roscoe Wind Farm near Roscoe, Texas is one of the world's largest-capacity wind farms. With 627 wind turbines and a total installed capacity of 781.5 MW, owned and operated by E.ON Climate and Renewables. [1] At the time of its completion in 2009, it was the largest wind farm in the world, surpassing the nearby 735.5-megawatt Horse Hollow Wind Energy Center. [2] In 2012, it was overtaken by California's 1,020-megawatt Alta Wind Energy Center.

Roscoe, Texas City in Texas, United States

Roscoe is a city in Nolan County in the U.S. state of Texas near the intersection of Interstate 20 and US Highway 84. The Union Pacific Railroad passes through the center of the city. Another rail line, the Roscoe, Snyder and Pacific Railway (RS&P), used to extend 50 miles (80 km) from Roscoe to Fluvanna, passing through Snyder, Texas. Built in 1908, the railway served as a bridge between the Atchison, Topeka and Santa Fe Railway and the Texas and Pacific Railway. Although the RS&P became one of the most profitable short lines in the nation during its early years, passenger service was discontinued in 1953, freight service was discontinued in the late 1970s, and the tracks were removed in 1984.

Wind farm group of wind turbines

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 to produce electricity. A large wind farm may consist of several hundred individual wind turbines and cover an extended area of hundreds of square miles, but the land between the turbines may be used for agricultural or other purposes. A wind farm can also be located offshore.

E.ON holding company

E.ON SE is a German electric utility company based in Essen, North Rhine-Westphalia, Germany. It runs one of the world's largest investor-owned electric utility service providers. The name comes from the Greek word aeon which means age. The company is a component of the Euro Stoxx 50 stock market index, DAX stock index and a member of the Dow Jones Global Titans 50 index.


Facility details

Roscoe was constructed in four phases. The first phase, Roscoe, was constructed in 2008 and consists of 209 Mitsubishi 1-megawatt turbines. Phase two is called Champion was also completed in 2008 and includes 55 Siemens 2.3-megawatt machines. The third phase is called Pyron. Its 166 GE 1.5-megawatt turbines were commissioned in mid-2009 shortly before the fourth phase, Inadale, was completed. Inadale adds 197 more Mitsubishi 1-megawatt turbines to the existing project.

The project cost more than $1 billion and provides enough power for more than 250,000 average Texan homes. It is located about 200 mi (320 km) west of Fort Worth, spanning parts of four Texas counties and covering nearly 100,000 acres (40,000 ha), several times the size of Manhattan. [2] [3] [4] [5]

Cliff Etheredge, a local cotton farmer, helped to organize the project [6] . In addition to its large size, the farm is also notable for the large number of individual land owners (as many as 400) who share in royalties from the project. [6] Wind farms are helping to revive the local economy in remote areas of West Texas and the Texas Panhandle. [2]

Texas Panhandle Region in Texas, United States

The Texas Panhandle is a region of the U.S. state of Texas consisting of the northernmost 26 counties in the state. The panhandle is a rectangular area bordered by New Mexico to the West and Oklahoma to the North and East. The Handbook of Texas defines the southern border of Swisher County as the southern boundary of the Texas Panhandle region.

The Roscoe Wind Farm and Cliff Etheredge are featured in the 2010 documentary film, Carbon Nation .

<i>Carbon Nation</i> 2010 film by Peter Byck

Carbon Nation is a 2010 documentary film by Peter Byck about technological- and community-based energy solutions to the growing worldwide carbon footprint. The film is narrated by Bill Kurtis. ASIN: B0055T46LA (Rental) and B0055T46G0 (Purchase).

Electricity production

Roscoe Wind Farm Generation (MW·h)
209 MW Unit [7]
126.5 MW Unit [8]
249 MW Unit [9]
197 MW Unit [10]
Total Annual
Average Annual Production (20112017)2,173,566

See also

Wind power in the United States Use of wind turbines to generate electricity

Wind power in the United States is a branch of the energy industry that has expanded quickly over the latest several years. For the twelve months through November 2017, 254.2 terawatt-hours were generated by wind power, or 6.33% of all generated electrical energy.

Wind power in Texas

Wind power in Texas consists of many wind farms with a total installed nameplate capacity of 25,629 MW from over 40 different projects. If Texas were a country, it would rank fifth in the world: The installed wind capacity in Texas exceeds installed wind capacity in all countries but China, the United States, Germany and India. Texas produces the most wind power of any U.S. state. According to ERCOT, wind power accounted for at least 15.7% of the electricity generated in Texas during 2017, as wind was 17.4% of electricity generated in ERCOT, which manages 90% of Texas's power. ERCOT set a new wind output record of nearly 19.7 GW at 7:19 pm Central Standard Time on Monday, January 21, 2019.

Related Research Articles

Blue Canyon Wind Farm Wind farm in Oklahoma, USA

Blue Canyon Wind Farm is the largest wind farm in Oklahoma, United States. The project, located in the Slick Hills north of Lawton, consists of four phases with a total output of 423.45 MW. As of 2008, Blue Canyon remains Oklahoma's largest wind farm; however, several organizations including Oklahoma Gas & Electric plan to greatly increase Oklahoma's wind power capacity, and future projects may be larger.

Horse Hollow Wind Energy Center is a large wind farm with 735.5 megawatts (MW) of capacity. It consists of 291 GE 1.5-megawatt wind turbines and 139 Siemens 2.3-megawatt wind turbines spread over nearly 47,000 acres (19,000 ha) of land in Taylor and Nolan County, Texas. At the time of its completion in 2006, it was the largest wind farm in the world.

The Peetz Table Wind Complex is a 430.2 megawatt (MW) wind facility in Logan County west of the town of Peetz in northeastern Colorado. The first 29.7 MW phase of construction called Peetz Table Wind, also known as Ridge Crest Wind, became the largest wind farm in the state upon its completion in 2001. A second 400.5 MW construction phase, including the 201 MW Logan Wind Energy Center and the 199.5 MW Peetz Table Wind Energy Center, reclaimed the distinction upon its completion in 2007.

The Sweetwater Wind Farm is a 585.3-megawatt (MW) wind farm in Nolan County, Texas. The facility includes 392 wind turbines and was fully commissioned by 2007. The electricity is being sold to Austin Energy and to CPS Energy of San Antonio.

Cedar Creek Wind Farm Wind farm in Colorado, USA

The Cedar Creek Wind Farm is a 551.3 megawatt (MW) wind farm located about 8 miles east of the town of Grover in north-central Weld County, Colorado. It consists of 397 wind turbines and was constructed in two phases, Cedar Creek I and Cedar Creek II, becoming fully operational in 2010. The electricity is sold to the Public Service Company of Colorado.

Shepherds Flat Wind Farm Wind farm in Oregon, USA

The Shepherds Flat Wind Farm is an 845 megawatt (MW) wind farm in the eastern part of U.S. state of Oregon, near Arlington, in both Gilliam and Morrow counties. Approved in 2008 by state regulators, groundbreaking came in 2009. The wind farm was built by Caithness Energy using General Electric GE2.5XL 2.5 MW wind turbines, and it supplies electricity to Southern California Edison. The wind farm is estimated to have an economic impact of $16 million annually for Oregon. It is one of the largest land-based wind farms in the world. It officially opened in September 2012.

The Milford Wind Corridor Project, also known simply as Milford Wind, is a 306 megawatt (MW) wind farm spanning Beaver and Millard County north of Milford, Utah. It became the states largest wind facility when the first phase was completed in 2009. The electricity is being sold to the Southern California Public Power Authority.

The Buffalo Gap Wind Farm is located in Nolan and Taylor Counties, about 20 miles (30 km) south west of Abilene, Texas. It was constructed in three phases and has a total wind generation capacity of 523.3 megawatts (MW).

The Capricorn Ridge Wind Farm is located in Sterling and Coke counties, Texas. It is a 662.5 MW wind farm, with 342 GE 1.5 MW wind turbines and 65 2.3 MW Siemens turbines that are capable of generating enough electricity for more than 220,000 homes. The wind farm is built, owned and operated by a subsidiary of NextEra Energy Resources, the U.S.' largest wind energy generator. The project is part owned by San Antonio-based Sullivan Trillian Fund Private Equity.

The 605.2 megawatt (MW) Peñascal Wind Farm project is located south of Baffin Bay in Kenedy County, Texas and was constructed in three phases by Iberdrola and Mortenson Construction. It became Iberdrola's largest renewable energy facility in the world after completion of the second phase in 2010.

Meadow Lake Wind Farm Wind farm in Indiana, USA

Meadow Lake Wind Farm is a 801.25 megawatt (MW) wind farm near Brookston and Chalmers, Indiana, spreading over portions of White, Jasper, and Benton Counties. It is owned and operated by EDP Renewables North America. The facility currently has six operational phases, with 414 turbines, and is a prominent feature on both sides of Interstate 65 in western Indiana.

Alta Wind Energy Center

Alta Wind Energy Center (AWEC), also known as Mojave Wind Farm, is the third largest onshore wind energy project in the world. The Alta Wind Energy Center is a wind farm located in Tehachapi Pass of the Tehachapi Mountains, in Kern County, California. As of 2013, it is the largest wind farm in the United States, with a combined installed capacity of 1,547 MW (2,075,000 hp). The project, being developed near Tehachapi Pass Wind Farm— site of the first large-scale wind farms installed in the U.S. in the 1970s and 1980s—is "a powerful illustration of the growing size and scope of modern wind projects".

Wind power in Colorado

The US state of Colorado has vast wind energy resources and the installed electricity capacity and generation from wind power in Colorado has been growing significantly in recent years. The growth has been sustained due to a combination of falling costs, continuing federal incentives, and the state's aggressive renewable portfolio standard that requires 30% of the state's electricity to come from renewable sources by 2020.

The Papalote Creek Wind Farm near Taft, Texas in San Patricio County is an array of 196 wind turbines that can produce 380 megawatts (MW) of power, enough to serve approximately 114,000 homes. The wind farm was built and is operated by E.ON Climate and Renewables North America.

South Plains Wind Farm Wind farm in Texas, USA

The South Plains Wind Farm, is located between Lockney and South Plains, Texas, on the high plains of the Llano Estacado in Floyd County. Completed in 2016, the wind farm was constructed in two phases that have a total generating capacity of 500.3 megawatts (MW).

The Limon Wind Energy Center is a 600.6 megawatt (MW) wind farm in eastern Colorado near the town of Limon. It became the largest wind facility in the state when construction completed in 2014. The electricity is being sold to Excel Energy under long-term power purchase agreements.

The Flat Ridge Wind Farm is an electricity generating wind facility spanning the intersection of Barber, Harper and Kingman County in the U.S. state of Kansas, located about 50 miles (80 km) southwest of the city of Wichita. It was constructed in two phases and has a total generating capacity of 570.4 megawatts (MW), becoming the largest such facility in the state upon its completion in 2012.

The Spinning Spur Wind Ranch is a 516 megawatt (MW) wind farm spanning the length of southern Oldham County in the northwest panhandle region of the U.S. state of Texas. The project was developed by Cielo Wind Power and EDF Renewable Energy in three phases that came online from 2012 to 2015. Phases 2 and 3 are enabled by the Competitive Renewable Energy Zone (CREZ) transmission infrastructure completed in 2013 that was designed to bring electricity generated in energy-resource-rich western regions to industrialized population centers in the central and eastern regions of the state.

The Javelina Wind Energy Center is a 748.7 megawatt (MW) wind farm in southeast Webb County and southwest Duval County located about 25 miles east of Laredo, Texas. The project was developed by Bordas Renewable Energy and NextEra Energy Resources in three phases that came online starting 2015. As of 2018, Javelina and adjacent wind farms create a contiguous facility with over 1 gigawatt (GW) of electricity generation.


  1. Weise, Elizabeth; Jervis, Rick (October 18, 2019). "Turbines to the max: Texas produces more wind energy than nearly anywhere else in the world". USA TODAY. Retrieved 2019-10-19.
  2. 1 2 3 O'Grady, Eileen. E.ON completes world's largest wind farm in Texas Archived 2011-01-23 at the Wayback Machine Reuters, October 1, 2009.
  3. EC&R Completes 780-MW Roscoe Wind Farm Archived 2012-05-16 at the Wayback Machine Renewable Energy World, 2 October 2009.
  4. E.ON Delivers 335-MW of Wind in Texas Archived 2016-01-05 at the Wayback Machine Renewable Energy World, 23 September 2008.
  5. American Wind Energy Association. U.S. Wind Energy Industry Installs over 2,800 MW in First Quarter Archived 2009-08-11 at the Wayback Machine
  6. 1 2 John Burnett. Winds of Change Blow into Roscoe, Texas Archived 2019-01-15 at the Wayback Machine NPR, November 27, 2007.
  7. "Roscoe, Annual". Electricity Data Browser. Energy Information Administration. Archived from the original on March 23, 2018. Retrieved March 22, 2019.
  8. "Champion, Annual". Electricity Data Browser. Energy Information Administration. Archived from the original on March 23, 2018. Retrieved March 22, 2019.
  9. "Pyron, Annual". Electricity Data Browser. Energy Information Administration. Archived from the original on March 23, 2018. Retrieved March 22, 2019.
  10. "Inadale, Annual". Electricity Data Browser. Energy Information Administration. Archived from the original on March 23, 2018. Retrieved March 22, 2019.