Question: where does the state where Wickfield Round Barn is located rank in wind energy production?

full_context: Document 1: Climate of North Dakota: Autumn weather in North Dakota is largely the reverse of spring weather. The jet stream, which tends to weaken in summer, begins to re-strengthen, leading to a quicker changing of weather patterns and an increased variability of temperatures. By late October and November these storm systems become strong enough to form major winter storms. Fall and spring are the windiest times of the year in North Dakota.
Document 2: Intrepid Wind Farm: The Intrepid Wind Farm consists of 107 wind turbines, located in Sac and Buena Vista counties in north-west Iowa, has a generating capacity of 160.5 megawatts of electricity. The wind power project is MidAmerican Energy Company’s first owned and operated wind generation facility and became operational on December 31, 2004.
Document 3: Robert Abell Round Barn: The Robert Abell Round Barn, in Logan County near Burnstad, North Dakota, United States, was built in 1942 by Robert Abell. It was listed on the National Register of Historic Places in 1986.
Document 4: Wind power in the United States: In 2016, Nebraska became the eighteenth state to have installed over 1,000 MW of wind power capacity. Texas, with over 20,000 MW of capacity, had the most installed wind power capacity of any U.S. state at the end of 2016. Texas also had more under construction than any other state currently has installed. The state generating the highest percentage of energy from wind power is Iowa. North Dakota has the most per capita wind generation. The Alta Wind Energy Center in California is the largest wind farm in the United States with a capacity of 1548 MW. GE Energy is the largest domestic wind turbine manufacturer.
Document 5: Wind power in Iowa: Wind farms are most prevalent in the north and west portion of Iowa. Wind maps show the winds in these areas to be stronger on average, making them better suited for the development of wind energy. Average wind speeds are not consistent from month to month. Wind maps show wind speeds are on average strongest from November through April, peaking in March. August is the month with the weakest average wind speeds. On a daily cycle, there is a slight rise in average wind speeds in the afternoon, from 1 to 6 p.m. Estimates by the National Renewable Energy Laboratory (NREL) indicate Iowa has potentially 570,700 Megawatts of wind power using large turbines mounted on 80 meter towers. Iowa ranks seventh in the country in terms of wind energy generation potential due to the strong average wind speeds in the midsection of the U.S. The Iowa Environmental Mesonet distributes current weather and wind conditions from approximately 450 monitoring stations across Iowa, providing data for modelling and predicting wind power.
Document 6: Kelly Round Barn: Kelly Round Barn is a historic round barn located near Halcottsville in Delaware County, New York, United States. It was built in 1899 and is a two-story structure with a low conical roof, approximately 90 feet in diameter. It features a central silo.
Document 7: James Bruce Round Barn: The James Bruce Round Barn is a round barn located near the Stephenson County, Illinois city of Freeport, United States. The barn was constructed in 1914 by the team of Jeremiah Shaffer and the Haas Brothers, who were responsible for at least a dozen round barns in the area. The barn features a single hip roof design which was probably influenced by the Agricultural Experiment Stations at the University of Illinois and the University of Wisconsin–Madison. The Bruce Round Barn was the last known round barn designed by the Shaffer–Haas team. The building was listed on the U.S. National Register of Historic Places as part of a multiple property submission in 1984.
Document 8: Wickfield Round Barn: The Wickfield Round Barn is a historic building located near Cantril in rural Van Buren County, Iowa, United States. Originally called Silvers Sale Pavilion, it was built in 1919 by Alva Hunt for $20,000. The true round barn measures in diameter. Frank Silvers, a successful hog breeder and businessman, operated the largest Hampshire hog farm in the world. The first floor had seating for 700 people. Silvers' business offices were also located on the first floor. The structure is constructed of clay tile and features an aerator. The two-pitch roof features eight dormers on the lower part and four dormers on the upper part of the roof. It has been listed on the National Register of Historic Places since 1986. There are no round barns in Iowa used as sale barns any longer, and this one is used for storage.
Document 9: Altamont Pass wind farm: The Altamont Pass wind farm is located in the Altamont Pass of the Diablo Range in Northern California. It is one of the earliest wind farms in the United States. The first wind turbines were placed on the Altamont in the early 1980s by Fayette Manufacturing Corporation on land owned by cattle rancher Joe Jess. The wind farm is composed of 4930 relatively small wind turbines of various types, making it at one time the largest wind farm in the world in terms of capacity. Altamont Pass is still one of the largest concentration of wind turbines in the world, with a capacity of 576 megawatts (MW), producing about 125 MW on average and 1.1 terawatt-hours (TWh) yearly. They were installed after the 1970s energy crisis in response to favorable tax policies for investors.
Document 10: Robert Weber Round Barn: The Robert Weber Round Barn is a round barn located east of Durand, Illinois, United States along Illinois Route 75 in Harrison Township. The Weber barn was constructed in 1917 and features a roof designed and built by the Haas Brothers, who worked on other area round barns. The barn is in diameter and features a diameter central silo. The design of the Weber Round Barn stands out from other area round barns in its vitrified tile walls, a development used in later period American round barns. The Robert Weber Round Barn was added to the U.S. National Register of Historic Places in 1984.
Document 11: Octagon Round Barn, Indian Creek Township: The Octagon Round Barn, Indian Creek Township is an historic building located near Iowa Center in rural Story County, Iowa, United States. It was built in around 1880 as a dairy barn. The octagon-shaped building measures in diameter. The modified hip roof, heavy timber framing, rectangular interior plan, and general purpose use marks this as a design influenced by Lorenzo S. Coffin, who built the first round barn in Iowa. It has been listed on the National Register of Historic Places since 1986. The barn has deteriorated significantly and it is essentially a pile of wood now.
Document 12: Renewable energy commercialization: As of 2014, the wind industry in the USA is able to produce more power at lower cost by using taller wind turbines with longer blades, capturing the faster winds at higher elevations. This has opened up new opportunities and in Indiana, Michigan, and Ohio, the price of power from wind turbines built 300 feet to 400 feet above the ground can now compete with conventional fossil fuels like coal. Prices have fallen to about 4 cents per kilowatt-hour in some cases and utilities have been increasing the amount of wind energy in their portfolio, saying it is their cheapest option.
Document 13: Wind power in Indiana: Wind power in Indiana was limited to a few small water - pumping windmills on farms until 2008 with construction of Indiana's first utility - scale wind power facility, Goodland (phase I) with a nameplate capacity of 130 MW. As of September 2017, Indiana had a total of 1897 MW of wind power capacity installed, ranking it 12th among U.S. states.
Document 14: J. Whitney Goff Round Barn: The J. Whitney Goff Round Barn near Winfred, South Dakota, United States, is a round barn that was built in 1915. It was listed on the National Register of Historic Places in 2004.
Document 15: Tatanka Wind Farm: The 180 MW Tatanka Wind Farm, is located in Dickey County and McIntosh County, North Dakota, and McPherson County, South Dakota. It is the largest wind farm in North and South Dakota and generates enough renewable energy to power more than 60,000 U.S. homes.
ground_truth: seventh in the country
sub_queries: In which state is Wickfield Round Barn located? Answer: Iowa
where does Iowa rank in wind energy production Answer: seventh in the country