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Smoke and mirrors

In September 2016, a '50-year-event' storm occurred in South Australia. Power system voltage transients caused nine wind farms to shut down, and two large wind farms – the Hornsdale wind farm and the Snowtown wind farm – reduced output by  86 MW and 106 MW respectively in the space of one second.  The Heywood interconnector flow increased to over 850 MW and both its circuits tripped out as a result of the overload. Supply was then lost to almost all the  South Australian region as the Torrens ...

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