Billionaire’s dream child may head down-under A Twitter challenge thrown down by Tesla founder Elon Musk to South Australia, offering to shore up the state’s troubled power grid within 100 days, or deliver a solution for free, could soon become reality ————— TESLA BATTERY FARM Musk is offering to construct massive 100 megawatt-hour battery farm, similar to this 80MW one in California Hundreds of Powerpacks charged up using off-peak electricity. Discharged back into grid when needed most, at peak times Substation: Connects farm to electricity grid Response to tweet challenging Tesla claim @mcannonbrookes Tesla will get the system installed and working 100 days from contract signature or it is free. That serious enough for you? Powerpack: Holds array of 16 Tesla Model S car battery packs Australian Prime Minister Malcolm Turnbull has since been in talks with Musk about proposal AUSTRALIA S. Australia: Forced blackouts during Feb heatwave as not enough power to meet demand 7,000 power cells, slightly bigger than AA batteries ————— Sources: Tesla, ABC, Twitter, wire agencies © GRAPHIC NEWS