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The world's first megawatt-size wind turbine on Grandpa's Knob, Castleton, Vermont The Smith–Putnam wind turbine [2] was the world's first megawatt-size wind turbine.In 1941 it was connected to the local electrical distribution system on Grandpa's Knob in Castleton, Vermont, US.
The MOD-2 wind turbine cluster of three turbines produced 7.5 megawatts of power in 1981. In 1987, the MOD-5B was the largest single wind turbine operating in the world with a rotor diameter of nearly 100 meters and a rated power of 3.2 megawatts. It demonstrated an availability of 95 percent, an unparalleled level for a new first-unit wind ...
China alone had over 40% of the world's capacity by 2022. [3] Wind power is used on a commercial basis in more than half of all the countries of the world. [4] Denmark produced 55% of its electricity from wind in 2022, a larger share than any other country. Latvia's wind capacity grew by 75%, the largest percent increase in 2022. [3]
Change of wind speed by a factor of 2.1544 increases the wind power by one order of magnitude (multiply by 10). The global wind kinetic energy averaged approximately 1.50 MJ/m 2 over the period from 1979 to 2010, 1.31 MJ/m 2 in the Northern Hemisphere with 1.70 MJ/m 2 in the Southern Hemisphere. The atmosphere acts as a thermal engine ...
World War II [b] or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all the world's countries—including all the great powers—participated, with many investing all available economic, industrial, and scientific capabilities in pursuit of total war, blurring the distinction between military and ...
The United States is the world's second-largest producer of energy. It produces 16% of the world's energy, about three-fourths as much as China. [4] Since 2019, the country has been a net exporter of energy. In 2023, 102.8 quads were produced and net exports were 7.6% of production. [18]
About 1.2 million Austrians served in all branches of the German armed forces during World War II. After the defeat of the Axis Powers, the Allies occupied Austria in four occupation zones set up at the end of World War II until 1955, when the country again became a fully independent republic under the condition that it remained neutral.
The History of the Second World War is the official history of the British contribution to the Second World War and was published by Her Majesty's Stationery Office (HMSO). ). The immense project was sub-divided into areas to ease publication, United Kingdom Military Series, the United Kingdom Civil Series for the civilian war effort; the Foreign Policy series, the Intelligence series and the ...