A Very Big Battery
South Australia is to invest in the world's largest Lithium Ion battery to shore up the state's power supplies by next summer.
Tesla will build the 100-megawatt battery which will store energy from French renewable company Neoen's Hornsdale Wind Farm near Jamestown, which is still under construction.
And Tesla boss Elon Musk is promising to build it in 100 days, or it's free.
A freak storm in September destroyed transmission lines, triggering backup systems. A key interstate connector with Victoria was ultimately tripped "off" due to automatic safety precautions. But early responses from Energy Minister Josh Frydenberg and other commentators pinned some of the blame on the state's reliance on renewables.