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Tesla's battery announcement - energy storage revolution


Source: SMH, 2 May 2015

The glitzy electric car company Tesla Motors, run by billionaire Elon Musk, ceased to be just a car company.

As was widely expected, Tesla announced that it is offering a home battery product, which people can use to store energy from their solar panels or to back-up their homes against blackouts, and also larger scale versions that could perform similar roles for companies or even parts of the grid.

For homeowners, the Tesla Powerwall will have a power capacity of either 10 kilowatt hours or 7 kilowatt hours, at a cost of either $US3500 or $US3000.

The company says these are the costs for suppliers and don't include the cost of installation and a power inverter, so customers could pay considerably more than that.

The battery, says Tesla, "increases the capacity for a household's solar consumption, while also offering back-up functionality during grid outages." At the same time, the company said it will producing larger batteries for businesses and utility companies.

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