Tesla unveils 6 million-square foot Gigafactory
Tesla on Friday unveiled its 6 million-square-foot​ Gigafactory in Nevada, US. The $5 billion structure, which is only about 14% complete till now, will reportedly be the biggest building in the world by footprint. By 2020, Tesla expects the Gigafactory to reach full capacity and produce more lithium ion batteries than were produced in the entire world in 2014.