When the wind doesn’t blow, South Australia’s 40% reliance on renewables gets exposed for it’s Achilles heel – lunatic power prices. At one stage today, power prices hit twelve hundred dollars ($1200) a kWh. Put into layman’s terms, if you accidentally left the porch lights on when you went to work and they were powered by two 100 watt light bulbs, in 10 hours each would rack up 1 kWh of energy. So that little mistake would cost $2,400 at those prices! So much for Elon Musk’s mega battery saving the day for South Australians during power shortages. No wonder Jay Weatherill’s government was turfed.