Tesla’s Gigafactory 1, a lithium-ion battery factory, is under construction in Storey County, Nevada. At 13 million square feet, it will be the world’s largest building by physical area and the second largest by usable space. Tesla expects it will be reducing production cost for their electric vehicle battery, Powerwall and Powerpack packs by about 30 percent. Tesla CEO Elon Musk says total planned battery output of the Gigafactory could triple to ~105 GWh of cells and ~150 GWh of battery packs. The company refers to the Gigafactory in Storey County as “Gigafactory 1” because it expects the factory to be one of many in the future. Tesla could be delivering lithium-ion batteries as early as the end of 2016.