Tesla is $62 million into the $5 billion, multi-year construction of the world’s largest lithium-ion battery plant near Reno, NV, according to an analysis of building permit data by the Reno Gazette-Journal.
To date, the electric car maker has started building the gigafactory’s steel structure, installing a 1.5 million-gallon water tank and pouring concrete for the factory’s main substation.
The plant reportedly will measure 10 million square feet when it is completed—larger than all of the world’s other lithium-ion plants combined, the newspaper calculated.
In its examination of building permits, the Gazette-Journal discovered that the company started prepping the building site on May 19, 2014, before it officially announced it had chosen the Tahoe-Reno Industrial Center as the site of its new factory. In fact, the newspaper reported, Nevada was still competing with other states for the plant at the time.