Energy use in the U.S.

  • Period: to

    First energy source

    Wood (a renewable energy source) served as the preeminent form of energy until the mid- to late-1800s, even though water mills were important to some early industrial growth.
  • electric motor

    electric motor
    Thomas Davenport invented the electric motor, an invention that is used in most electrical appliances today
  • fuel cell

    fuel cell
    Sir William Robert Grove developed the first fuel cell, a device that produces electrical energy by combining hydrogen and oxygen
  • light bulb

    light bulb
    After many experiments, Thomas Edison invented an incandescent light bulb that could be used for about 40 hours without burning out. By 1880 his bulbs could be used for 1200 hours.
  • Energy systems

    Energy systems
    William Stanley developed the induction coil transformer and an alternating current electric system.
  • solar power

    solar power
    French scientist Henry Becquerel observes the production of electricity directly from the sun while experimenting with an electrolytic cell made up of two metal electrodes placed in an electricity-conducting solution.
  • Coal

    Coal
    Coal became a dominant energy source.
  • Energy provides for humans

    Energy provides for humans
    Putting energy’s “capacity for work” to use in solving the most basic of human needs – feeding, clothing and transporting people, as well as protecting them from enemies and the elements – has meant applying human ingenuity to the myriad of challenges posed by life itself.
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