Elon Musk's Tesla expands from auto with solar-storing battery range

US electric car manufacturer Tesla has unveiled a green battery range which stores solar energy in a move which could supplement under-pressure power grids during periods of high demand.

Tesla's new back-up system could bolster energy infrastructure, the company has announced, as it explores new possibilities beyond the auto industry.

The ‘Tesla Energy’ line is “a suite of batteries for homes, businesses, and utilities fostering a clean energy ecosystem and helping wean the world off fossil fuels," Musk announced.

A statement from the company read: “Tesla is not just an automotive company, it’s an energy innovation company. Tesla Energy is a critical step in this mission to enable zero emission power generation.”

The rechargeable lithium-ion battery units would be similar to the models in the Tesla auto range, with the ‘Powerwall’ batteries - capable of generating 7kWh - set to retail for £1,954.

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