paragraph_text: The Bahrain World Trade Center (also called Bahrain WTC or BWTC) is a 240-metre-high (787 ft), 50-floor, twin tower complex located in Manama, Bahrain. Designed by the multi-national architectural firm Atkins, construction on the towers was completed in 2008. It is the first skyscraper in the world to integrate wind turbines into its design. The wind turbines were developed, built and installed by the Danish company Norwin A/S.The structure is constructed close to the King Faisal Highway, near popular landmarks such as the towers of Bahrain Financial Harbour (BFH), NBB and Abraj Al Lulu. It currently ranks as the second-tallest building in Bahrain, after the twin towers of the Bahrain Financial Harbour. The project has received several awards for sustainability, including:

paragraph_text: Spain is one of the world's leading countries in the development and production of renewable energy. In 2010 Spain became the solar power world leader when it overtook the United States with a massive power station plant called La Florida, near Alvarado, Badajoz. Spain is also Europe's main producer of wind energy. In 2010 its wind turbines generated 42,976 GWh, which accounted for 16.4% of all electrical energy produced in Spain. On 9 November 2010, wind energy reached an instantaneous historic peak covering 53% of mainland electricity demand and generating an amount of energy that is equivalent to that of 14 nuclear reactors. Other renewable energies used in Spain are hydroelectric, biomass and marine (2 power plants under construction).Non-renewable energy sources used in Spain are nuclear (8 operative reactors), gas, coal, and oil. Fossil fuels together generated 58% of Spain's electricity in 2009, just below the OECD mean of 61%. Nuclear power generated another 19%, and wind and hydro about 12% each.

paragraph_text: The tradition of Estonian Song Festivals (Laulupidu) started at the height of the Estonian national awakening in 1869. Today, it is one of the largest amateur choral events in the world. In 2004, about 100,000 people participated in the Song Festival. Since 1928, the Tallinn Song Festival Grounds (Lauluväljak) have hosted the event every five years in July. The last festival took place in July 2014. In addition, Youth Song Festivals are also held every four or five years, the last of them in 2011, and the next is scheduled for 2017.

paragraph_text: The main use for steam turbines is in electricity generation (in the 1990s about 90% of the world's electric production was by use of steam turbines) however the recent widespread application of large gas turbine units and typical combined cycle power plants has resulted in reduction of this percentage to the 80% regime for steam turbines. In electricity production, the high speed of turbine rotation matches well with the speed of modern electric generators, which are typically direct connected to their driving turbines. In marine service, (pioneered on the Turbinia), steam turbines with reduction gearing (although the Turbinia has direct turbines to propellers with no reduction gearbox) dominated large ship propulsion throughout the late 20th century, being more efficient (and requiring far less maintenance) than reciprocating steam engines. In recent decades, reciprocating Diesel engines, and gas turbines, have almost entirely supplanted steam propulsion for marine applications.

paragraph_text: Kublai (; ; ) was the fifth Khagan (Great Khan) of the Mongol Empire ("Ikh Mongol Uls"), reigning from 1260 to 1294 (although due to the division of the empire this was a nominal position). He also founded the Yuan dynasty in China as a conquest dynasty in 1271, and ruled as the first Yuan emperor until his death in 1294.

paragraph_text: The Portoscuso Wind Farm is a proposed wind power project in Portoscuso, Sardinia, Italy. It will have 39 individual wind turbines with a nominal output of around 2.3 MW each which will deliver up to 90 MW of power, enough to power over 70,000 homes, with a capital investment required of approximately €100 million. The wind farm will have an electricity production of 185 GWh per year that will save the emission of 130,000 tonnes of carbon dioxide.

paragraph_text: 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.

paragraph_text: 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.

paragraph_text: Since 2010 more than half of all new wind power was added outside of the traditional markets of Europe and North America, mainly driven by the continuing boom in China and India. At the end of 2015, China had 145 GW of wind power installed. In 2015, China installed close to half of the world's added wind power capacity.

paragraph_text: The defeat of Eugenius and his commander, the Frankish magister militum Arbogast, put the whole empire back in the hands of a single emperor for the last time until the final collapse of the Western Roman Empire (not considering the purely nominal claim of Zeno in 480). Theodosius passed

paragraph_text: Granite Reliable Wind Farm is a 99-megawatt wind farm, opened in 2011 in Millsfield and Dixville, New Hampshire, in the northeast United States. Owned by Brookfield Renewable, it is the second major wind-power installation in the state of New Hampshire. Most of the electricity generated will be sold to utilities in Vermont, Central Vermont Public Service and Green Mountain Power. Power from the wind turbines is connected through three 34.5 kV lines to a substation and from there through a 115 kV line. The wind farm was constructed by Madison, Wisconsin-based RMT Inc.

paragraph_text: Following the defeat of the usurper known as Constantine III, Jovinus was proclaimed emperor at Mainz in 411, a puppet supported by Gundahar, king of the Burgundians, and Goar, king of the Alans. Jovinus kept his position in Gaul for two years, long enough to issue coinage that showed him wearing the imperial diadem. He was supported by a number of local Gallo-Roman nobles who had survived Constantine's defeat.

paragraph_text: Windy Hill Wind Farm is a wind power station near Ravenshoe on the Atherton Tablelands, Queensland, Australia. Windy Hill has 20 wind turbines with a generating capacity of 12 MW of electricity, providing enough power for about 3,500 homes. The cost of the project was A$20 million. It was the first wind farm to be constructed in Queensland.

paragraph_text: The Song dynasty is divided into two distinct periods, Northern and Southern. During the Northern Song (Chinese: 北宋; 960 -- 1127), the Song capital was in the northern city of Bianjing (now Kaifeng) and the dynasty controlled most of what is now Eastern China. The Southern Song (Chinese: 南宋; 1127 -- 1279) refers to the period after the Song lost control of its northern half to the Jurchen Jin dynasty in the Jin -- Song Wars. During this time, the Song court retreated south of the Yangtze and established its capital at Lin'an (now Hangzhou). Although the Song dynasty had lost control of the traditional ``birthplace of Chinese civilization ''along the Yellow River, the Song economy was still strong, as the Southern Song Empire contained a large population and productive agricultural land. The Southern Song dynasty considerably bolstered its naval strength to defend its waters and land borders and to conduct maritime missions abroad. To repel the Jin, and later the Mongols, the Song developed revolutionary new military technology augmented by the use of gunpowder. In 1234, the Jin dynasty was conquered by the Mongols, who took control of northern China, maintaining uneasy relations with the Southern Song. Möngke Khan, the fourth Great Khan of the Mongol Empire, died in 1259 while besieging the city of Chongqing. His younger brother Kublai Khan was proclaimed the new Great Khan, though his claim was only partially recognized by the Mongols in the west. In 1271, Kublai Khan was proclaimed the Emperor of China. After two decades of sporadic warfare, Kublai Khan's armies conquered the Song dynasty in 1279. The Mongol invasion led to a reunification under the Yuan dynasty (1271 -- 1368).

paragraph_text: Belgium was represented by Ingeborg, with the song '"Door de wind", at the 1989 Eurovision Song Contest, which took place in Lausanne, Switzerland on 6 May. Ingeborg was the winner of the Belgian national final for the contest, held in Brussels on 18 March.

paragraph_text: Klondike is an unincorporated community in Sherman County, Oregon, United States. It is near the Wasco, Oregon site of the Klondike III Wind Project, Oregon's largest wind energy farm with 176 turbines for wind energy.

paragraph_text: Musselroe Wind Farm is a wind farm at Cape Portland, Tasmania, Australia. It is third wind farm in the state, being owned and operated by Hydro Tasmania. It consists of 56 Vestas V90-3MW wind turbines, with a generating capacity of 168 MW. The energy output from the Musselroe Wind Farm will be sufficient to supply electricity to around 50,000 households and abate 450,000 tonnes of emissions annually.

paragraph_text: De Nolet (also known as Noletmolen) is a wind turbine in Schiedam, The Netherlands which is disguised as a traditional Schiedam windmill. "De Nolet" has a tower height of 43 metres and a gross height of 55 metres including its rotor tips.

paragraph_text: 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.

paragraph_text: 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.

Question: The person defeating the last song emperor of the country having the most wind turbines in the world held what position?
Answer: Khagan