Sydney — Elon Musk’s Tesla has won a tender to supply what the billionaire says is the world’s largest lithium-ion battery to back up the state of South Australia’s blackout-plagued power grid, making good on a promise first made over Twitter four months ago to help solve the state’s energy woes. Tesla will provide 100MW of storage by December 1, pairing it with a wind farm at Hornsdale north of Adelaide operated by France’s Neoen, according to a statement on Friday from South Australian premier Jay Weatherill. The system, which will have capacity of 129 megawatt hours (MWh), will provide enough power for more than 30,000 homes, Tesla said in a separate statement. "Battery storage is the future of our national energy market and the eyes of the world will be following our leadership in this space," Weatherill said. "We’re talking about something that’s three times as powerful as the next biggest battery installation in the world," Musk told reporters in Adelaide. Musk had previously ...

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