This screen grab from an undated handout video from a drone received by AFP on December 1, 2017 from French energy firm Neoen shows the Tesla 100 MW/129 MWh Powerpack system by billionaire entrepreneur Elon Musk in the rural town of Jamestown, 200km north of Adelaide. 
The world&#039;s biggest battery was officially launched in Australia on December 1, with the Elon Musk-driven project powered up early to meet peak demand amid a bout of hot weather, officials said. / AFP PHOTO / Neoen / Handout / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT &quot;AFP PHOTO / NEOEN&quot; - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS == NO ARCHIVE