Tesla Motors Inc. has nearly tripled its land holdings in Nevada in recent months, purchasing nearly 2,000 additional acres near Reno as it continues work on a factory intended to build batteries for electric cars and stationary backup batteries.

Tesla originally purchased 1,000 acres in 2014, when it struck a deal to locate outside Reno in nearby Storey County. But that agreement included options to purchase additional land in a region with relatively little in the way of manufacturing activities.

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