President Barack Obama tours Vacon USA

President Barack Obama tours Vacon USA with Energy Secretary Ernest Moniz, right, Vacon Vice President Dan Isaksson, left, and Vacon engineer Rod Washington, in Durham, N.C., Jan. 15, 2014. Vacon is a company that manufactures AC drives, which are used to control the speed of electric motors to maximize energy efficiency. (Official White House Photo by Lawrence Jackson)