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Deutsche Bank: This Week's Tesla Announcement Could Be a Bigger Deal Than Investors Realize

Could batteries add $100 to Tesla's share price?

Tesla Motors Inc. is set to announce a home battery and a “very large” utility-scale battery later this week, and Deutsche Bank says the market still isn't pricing in the significance of the firm's new venture. 

The company, known for its luxury electric cars, is now using its lithium-ion battery technology to position itself as a front-runner in the emerging market for energy storage that supplements. It already has batteries installed at 11 Wal-Mart stores and 300 California homes equipped with solar panels as part of a pilot program with sister company SolarCity.