Tesla unveils batteries to power homes

US electric car maker Tesla Motors has unveiled batteries that can power homes and businesses as it attempts to expand beyond its vehicle business. The firm would build batteries that store solar energy and serve as a back-up system for consumers during blackouts.

The device would allow consumers to get off a power grid or bring energy to remote areas that are not on a grid. Tesla plans to start shipping the units to installers in the US by this summer.

Chief executive Elon Musk said the move could help change the “entire energy infrastructure of the world”.

“Tesla Energy is a critical step in this mission to enable zero emission power generation,”

The rechargeable lithium-ion battery unit would be built using the same batteries Tesla produces for its electric vehicles, analysts said.

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