Tesla’s new mega-battery in Australia reacts to outages in ‘record’ time

Less than a month after Tesla unveiled a new backup power system in South Australia, the world’s largest lithium-ion battery is already being put to the test. And it appears to be far exceeding expectations: In the past three weeks alone, the Hornsdale Power Reserve has smoothed out at least two major energy outages, responding even more quickly than the coal-fired backups that were supposed to provide emergency power.

Tesla’s battery last week kicked in just 0.14 seconds after one of Australia’s biggest plants, the Loy Yang facility in the neighbouring state of Victoria, suffered a sudden, unexplained drop in output, according to the International Business Times. And the week before that, another failure at Loy Yang prompted the Hornsdale battery to respond in as little as four seconds — or less, according to some estimates — beating other plants to the punch. State officials have called the response time “a record,” according to local media.

The effectiveness of Tesla’s battery is being closely watched in a region that is in the grips of an energy crisis. The price of electricity is soaring in Australia, particularly in the state of South Australia, where a 2016 outage led 1.7 million residents to lose power in a blackout. Storms and heat waves have caused additional outages, and many Australians are bracing for more with the onset of summer in the Southern Hemisphere.

The Hornsdale battery system, which uses the same energy-storage tech found in Tesla’s electric cars, is one of chief executive Elon Musk‘s newest projects. In March, Musk, who is known for setting high goals and only sometimes meeting them, vowed on Twitter to deliver a battery system for South Australia’s struggling grid within 100 days or it would be free. By early July, the state had signed a deal with Tesla and the French-based energy company Neoen to produce the battery. And by 1 December, South Australia announced that it had switched on the Hornsdale…

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