The blackout had nothing to do with insufficient base load power and everything to do with the storm damaging lines. The wind farms actually produced more then enough electricity at the time - the problem was delivery - http://mobile.abc.net.au/news/2016-09-28/sa-power-outage-exp...
The storm caused extra load on the interconnector. The power went off when the interconnector shut down. The interconnector is needed because there is inadequate power generation within the state. There is inadequate power generation because coal generators were shutdown in favour of renewables.
The South Australian Government were patting themselves on the back about their high proportion of renewable energy but the reality was they were dependent on importing coal derived electricity form interstate. The storm exposed this dependency.
You got a lot of down votes in this thread, but you're 100% correct in saying that SA's reliance on wind power has caused these problems, and that is entirely politically motivated.
