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Called the Tom Thumb, this was an early model of a Steam Locomotive.
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Joseph Henry invented the electrical relay, used to send electrical currents long distances.
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Thomas Davenport invented the electric motor, an invention that is used in most electrical appliances today.
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Samuel Morse invented the electric telegraph, a machine that could send messages long distances across wire
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George B. Simpson. is awarded US patent #25532 for an 'electro-heater' surface heated by an platinum-wire coil powered by batteries
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the world’s first hydroelectric power plant, the Vulcan Street Plant, began operation in Wisconsin, producing enough energy to supply three buildings
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In 1902, the first modern electrical air conditioning unit was invented by Willis Haviland Carrier in Buffalo, New York.
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1947 Transistor invented by scientists at Bell Telephone Laboratiories
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On Jan. 3, 2007, Duke Energy spun off its gas business to form Spectra Energy.
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The largest solar energy event in the U.S. took place
