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The energy sector of Ohio consists of thousands of companies and cities representing the oil, natural gas, coal, solar, wind energy, fuel cell, biofuel, geothermal, hydroelectric, and other related industries. Oil and natural gas accounts for $3.1 billion annually in sales while ethanol generates $750 million. The state is #2 nationally in solar manufacturing as Toledo is considered a national solar hub, nicknamed "Solar Valley". It is recognized internationally as the "Fuel Cell Corridor", and Hamilton is poised to become the biggest municipal provider of renewable energy in the Midwest, and one of the largest in the country, with over 70%. In 2008, the state led the country in alternative energy manufacturing according to Site Selection Magazine, while the natural gas industry has experienced growth due to the Great Shale Gas Rush. Several notable energy companies are headquartered in Ohio, including American Electric Power, Columbia Gas of Ohio, DPL Inc., Marathon Petroleum Company, American Municipal Power, Inc., Cliffs Natural Resources, Murray Energy, FirstEnergy, Oxford Resource Partners LP, AB Resources, American Hydrogen Corporation, and IGS Energy. Rolls-Royce North America's Energy Systems Inc., a subsidiary of United Kingdom-based Rolls-Royce plc, is headquartered in Mt. Vernon, specializing in gas compression, power generation, and pipeline technologies.〔("Facilities" ), Rolls-Royce, Retrieved 19 November 2009.〕 Ultra Premium Oilfield Services and V&M Star Steel operate steel production facilities in the state, which cater to energy exploration. Ohio consumed 160.176 TWh of electricity in 2005, fourth among U.S. states, and has a storied history in the sector, including the first offshore oil drilling platform in the world, and a modern, renewable energy economy along with the traditional nuclear, oil, coal, and gas industries. Despite being an advanced energy state, it has been ranked last in addressing environmental issues and alternative energy consumption, and 47th in carbon footprint.〔("The Ten Least Green States In U.S". ), The Huffington Post. 22 April 2011. Retrieved 24 April 2011〕 The modern American environmental movement concerning legislation and awareness can largely be traced back to the Cuyahoga River fire of June 22, 1969.〔("Invisible threats mark Earth Day at 40" ), Seth Borenstein. MSNBC. 22 April 2010. Retrieved 24 April 2011〕〔("Earth Day's effect on Cleveland journalist covering Northeast Ohio environment; take reader poll" ), Michael Scott. ''The Plain Dealer'' (Cleveland). 22 April 2011. Retrieved 24 April 2011〕 ==Early innovation== Thomas Edison, a native of Milan, is widely regarded as a father of the modern industrialized world and the originator of mass-energy generation and distribution concepts, as well as the long-lasting, practical electric light bulb. Another Ohio-native, Charles F. Brush is said to have invented the first electric dynamo, resulting in the present-day United Kingdom-based Brush Electrical Machines. Arthur Compton, of Wooster, invented the fluorescent light tube and was a pioneer in the study of atomic energy. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Energy in Ohio」の詳細全文を読む スポンサード リンク
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