Musk’s Battery Boast Will Be Short-Lived as Rivals Go Bigger

Nov. 30, 2017, 7:26 PM

Billionaire Elon Musk defied his doubters to beat the 100-day deadline Dec. 1 and install the world’s biggest battery in the Australian outback. He’ll probably relinquish that crown by February.

South Korea’s Hyundai Electric & Energy Systems Co. is building a 150-megawatt lithium-ion unit, 50 percent larger than Musk’s, that the company says will go live in about three months in Ulsan near the southeast coast.

With battery prices tumbling by almost half since 2014, large-scale projects are popping up around the world. Developers have announced lithium-ion battery projects with total capacity of 1,650 megawatts per hour in 2017, four ...

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