10 key historical energy events By blergh Jan 1, 1752 Nature of Electricity Discovered Jan 1, 1837 Electric Motor Invented Jan 1, 1839 Fuel Cell Developed Jan 1, 1844 Electric Telegraph Invented Jan 1, 1880 Battery Invented Jan 1, 1886 Alternating Current Energy System Jan 1, 1888 Wind Turbine Jan 1, 1890 Solar Power Discovered Jan 1, 1904 Geothermal Electric Power Plant Invented Jan 1, 1923 Photoelectric Cells Invented
