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The first commercial coal production plant was opened up in Richmond, Virginia. Actual date is unknown.
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The first well that intended to excavate natural gas was dug in Fredonia, New York. Actual date unknown.
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Trains began to be powered by coal instead of wood, as they had been in the past. Actual date unknown.
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The first hydrogen fuel cell was created in order to generate electricity. Actual date unknown
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John D. Rockefeller founds Standard Oil, making petroleum a major energy source in the U.S. Actual date unknown
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The first electricity power plant was constructed by Thomas Edison in New York.
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The first windmill to actually create electrical energy was built in Cleveland, Ohio. Actual date unknown.
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The world's first geothermal power plant was built in California. Actual date unknown.
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Hoover Dam was built, and was the largest hydroelectric power plant at the time. It was built in Arizona. Actual date unknown.
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The first nuclear power plant was built in Idaho, in order to generate electricity.
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