Energy Timeline

  • First electric battery invented by Alessandro Volta.

    First electric battery invented by Alessandro Volta.
  • Humphry Davy invented the first effective “arc lamp.”

    Humphry Davy invented the first effective “arc lamp.”
  • Separate experiments by Hans Christian Oersted, A.M. Ampere, and D.F.G. Arago confirmed the relationship between electricity and magnetism.

    Separate experiments by Hans Christian Oersted, A.M. Ampere, and D.F.G. Arago confirmed the relationship between electricity and magnetism.
  • The first electric motor was invented by Michael Faraday.

    The first electric motor was invented by Michael Faraday.
  • Georg Ohm defined the relationship between power, voltage, current and resistance in “Ohms Law.”

    Georg Ohm defined the relationship between power, voltage, current and resistance in “Ohms Law.”
  • Joseph Henry invented the electrical relay, used to send electrical currents long distances.

    Joseph Henry invented the electrical relay, used to send electrical currents long distances.
  • Thomas Davenport invented the electric motor, an invention that is used in most electrical appliances today.

    Thomas Davenport invented the electric motor, an invention that is used in most electrical appliances today.
  • Sir William Robert Grove developed the first fuel cell, a device that produces electrical energy by combining hydrogen and oxygen.

    Sir William Robert Grove developed the first fuel cell, a device that produces electrical energy by combining hydrogen and oxygen.
  • The electric streetcar was invented by E.W. v. Siemens

    The electric streetcar was invented by E.W. v. Siemens
  • Nikola Tesla invented the “Tesla coil”, a transformer that changes electricity from low voltage to high voltage making it easier to transport over long distances.

    Nikola Tesla invented the “Tesla coil”, a transformer that changes electricity from low voltage to high voltage making it easier to transport over long distances.