By Dana Hull

Capping one of the fiercest battles for economic bragging rights in years, Tesla Motors is expected to announce Thursday that it has chosen Nevada as the site for its first "gigafactory" for battery production.

California officials, including Gov. Jerry Brown, had aggressively sought the factory and the decision is a blow to the state's efforts to attract and retain high-paying manufacturing jobs.

"Tesla looks forward to joining the governor and legislative leaders tomorrow in Carson City," Tesla spokeswoman Liz Jarvis-Shean said Wednesday in an interview with the San Jose Mercury News.

Tesla evaluated scores of potential sites in California, Arizona, New Mexico, Nevada and Texas throughout the spring and summer for its battery factory, which CEO Elon Musk has said will produce more lithium-ion batteries then the rest of the world manufactured last year. The fiercely competitive, five-way contest between the states for the proposed factory and its promise of 6,500 manufacturing jobs turned into one of the most high-profile economic development stories in years, with Musk personally joining discussions with governors, economic development officials and even members of Congress.

The decision is a huge coup for Nevada, which is eager to diversify its tourism-dependent economy.

Tesla has already excavated on the presumed site at the Tahoe-Reno Industrial Center, roughly a four-hour drive from Tesla's Fremont, Calif., factory.

"The project is the holy grail sought by the Nevada foot soldiers of economic development," said John Boyd of The Boyd Co., a New Jersey-based site-selection firm. "It will have a huge economic impact on the housing, hotels, gaming, and construction industries in the Reno area. The Reno airport, short on flights now, will get a major boost in demand and then more flights."

California officials expressed disappointment Wednesday.

"No other state has added more jobs than California since the recovery began and we'll continue to work closely with businesses, including California-based Tesla, that want to grow here," Brook Taylor, spokesman for the Governor's Office of Business and Economic Development, said in an email Wednesday.

"This can serve as a good learning opportunity for California," said Jim Wunderman, CEO of the Bay Area Council. "We should look very closely at what factors ultimately led to Tesla choosing Reno, and we should determine what we can do better going forward to attract and retain middle class jobs in California."

Californian State Sen. Ted Gaines, who went so far as to show up at Tesla's Palo Alto headquarters with a symbolic "golden shovel," was particularly frustrated.

"It's a clear indictment of our business climate that Nevada is pulling this huge investment away from its natural home," Gaines said in a statement. "I'm not sure there could be a stronger signal to legislators about how hard they have made it to operate here. ... I challenge my colleagues to join me in a bipartisan effort to ensure that we are the No. 1 destination for the next gigafactory."

A source close to the discussions noted that the only operating lithium company in the country is Rockwood Lithium, which operates in Silver Peak, Nev. Rockwood was awarded a $28 million grant from the Department of Energy as part of the federal stimulus package to expand production.

Nevada Sen. Harry Reid is a vocal advocate of clean energy and is in the midst of hosting his annual National Clean Energy Summit in Las Vegas; Musk spoke at the summit in 2012.

Nevada Gov. Brian Sandoval, a Republican, will convene a special session of the state's legislature to finalize the details of Nevada's incentive package, according to a source close to the negotiations; the session could convene as early as Tuesday.

Tesla expects to sell 35,000 all-electric Model S sedans in this year and is gearing up production of its Model X SUV, which will hit the market in 2015. By 2017, it plans to begin delivery of its more affordable "Gen 3" sedan, which it hopes to sell for about $35,000, or about half the cost of the cheapest Model S. Driving down the cost of battery packs is key to making electric cars more affordable.

Each Model S sedan is powered by more than 7,000 lithium-ion battery cells, which Tesla gets from Panasonic. While the battery cells are similar to those used in laptops and game consoles, Tesla's were jointly developed by Tesla and Panasonic specifically for electric vehicles.

Tesla and Panasonic have signed an agreement by which Tesla will prepare, provide and manage the gigafactory's land, building and utilities, while Panasonic will manufacture and supply cylindrical lithium-ion cells and invest in the associated equipment, machinery, and other manufacturing tools.

But the gigafactory is not just for car batteries. Tesla is increasingly exploring stationary energy storage for homes, businesses and utilities.

"The Gigafactory represents a fundamental change in the way large-scale battery production can be realized," Tesla Chief Technical Officer JB Straubel said in a statement earlier this summer. "Not only does the gigafactory enable capacity needed for the Model 3 but it sets the path for a dramatic reduction in the cost of energy storage across a broad range of applications."

(c)2014 San Jose Mercury News (San Jose, Calif.)