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Why Tesla is making a power play into batteries for home, business
Why Tesla is making a power play into batteries for home, business

Billionaire Elon Musk's Tesla Motors Inc. unveiled a line of inexpensive residential and commercial energy storage systems at a rock concert-like gala Thursday night at the company's design studio in Hawthorne. The battery-based systems are expected to make solar power systems more efficient, provide backup power during blackouts and potentially give remote villages in undeveloped countries affordable access to electricity. What is the product? The Tesla Powerwall is a rechargeable lithium-ion battery about the size and thickness of a home refrigerator door. It can be bolted to the wall of a garage or home. It stores energy from rooftop solar panels or even the electric grid....

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