Historical Energy Events By marleigh.cannon Jul 2, 1698 Thomas Savery invented steam engine Oct 1, 1745 Georg Von Kleist developed first electric capacitator Jan 1, 1800 Alessandro Volta invented first electrical battery Jan 1, 1835 Joseph Henry invented electrical relay Jul 4, 1904 First dry steam geothermal power plant was built in Laderello Mar 1, 1911 Rutherford discovered nucleus Aug 1, 1946 Atomic Energy Act Passed Feb 1, 1989 EPA report advocated recycling as a waste management tool Sep 1, 2001 Home Depot began selling residential solar power systems May 27, 2010 Secretary of Intererior Salazar announce 6 month hold on deepwater drilling