This comes from the promise of CEO Tesla Elon Musk who claims to overcome the power outages in South Australia, which routinely occur due to bad weather conditions. Tesla also won a tender for the procurement of lithium ion batteries with a capacity of 100 megawatts in Australia.
This means, the battery named Tesla Powerpack system will be the lithium ion battery with the largest capacity in the world. A battery of that size would be used to supply electricity to more than 30,000 homes, equivalent to the number of homes affected by routine power outages.
His own power source comes from the Hornsdale Wind Farm wind power plant located in Jamestown, South Australia, according to The Verge.
Previously Musk also boasted that Tesla only takes 100 working days to complete it. If the target is not reached, then Tesla will not be paid for the results of his work.
As a result, Tesla should be able to complete the project in December, or they must lose money of US$ 50 million. But Tesla should be able to achieve these targets, because this is not the first Powerpack system they make.