SAN FRANCISCO (MarketWatch) -- Tesla Motors Inc. TSLA, +4.42% has chosen Nevada as the state to house its battery plant, The Wall Street Journal reported Wednesday. State officials will hold a press conference in Carson City on Thursday, the paper said. Tesla said last month it had broken ground on a site in Storey County, east of Reno, but added that it will still be looking at other sites in other states as a final location would depend on what agreements and incentives it could get from whichever state it chooses. Shares of Tesla fell 0.6%, having hit an intraday record high of $288 earlier in the session.