Tesla reaches halfway point of construction on 'world's biggest' battery

Tesla boss Elon Musk has held a party in South Australia's mid-north to mark the halfway point of construction of the world's most powerful lithium ion battery.

Key points:

 * Elon Musk made the announcement from a marquee overlooking the battery array in Jamestown
 * SA Premier Jay Weatherill said the event was a celebration of how far the state has come, one year on from the statewide blackout
 * The SA Government has set an operating deadline of December 1 for the battery

A grid connection agreement for the 100-megawatt battery array was signed by transmission company Electranet on Friday afternoon, sparking the start of a 100-day deadline for Tesla to complete construction of the battery or build it for free.

Mr Musk addressed invited guests including politicians, local landowners and Tesla customers in a marquee overlooking the battery array which is under construction in Jamestown alongside French company Neoen's Hornsdale wind farm.

Read more...http://www.abc.net.au/news/2017-09-29/elon-musk-tesla-world-biggest-battery-reaches-halfway-mark/9001542