Everything other than the failure of transmission towers is redundant and speculative nonsense as the power stayed on until those towers went over so quite clearly the state had ample power before they toppled.
no no no. you need to take a holistic view of the grid. the grid is statewide (in fact its SA-VIC-TAS-NSW-QLD wide)
noone is saying the state didnt have ample power before the tower fell over.
the power was lost north of the towers when the towers blew over.
the remainder of SA didnt have enough generation once the tower went down
the grid attempted to fix the deficit by pulling more power though the interconnector. the interconnector overloaded and tripped
the remainder of SA now had a bigger deficit.
if the remaining section of SA was powered by enough conventional power stations, the grid would be been stable enough to shed some load (causing an outage for some but not all) and leave the majority of the state with the lights on.
i'm quite happy to have renewals in our state but with that we need to accept the grid becomes less stable,the grid is more susceptible to an out of character events and less likely to recover.
the storms were a predictable event and SA should have been running on 80% conventional power stations, just in case.