Paul Englher | ABC News

By Jo Nova

Just how wise is it to have a grid dependent on all this fragile infrastructure?

Nature seems to be telling us something about adding another 10,000 kilometers of vulnerable transmission lines.

Yesterday six high voltage transmission lines collapsed in Victoria leaving half a million people without electricity for hours. But only a few weeks ago five towers collapsed in Western Australia putting 30,000 in the dark. And out in Kalgoorlie, when the gas backup plants failed, thousands of people went for days without power in 40 degree heat. Some people were unable to call triple zero, freezers full of food were spoilt and nearly everything left to buy had to be paid for in cash.

In Victoria the towers fell at 1:10pm during a storm. Their loss triggered the shut down of 4 large coal power units at Loy B Yang taking out 2 GW of generation. It took three hours to get one turbine back on line, and eight hours to restore the second. Everyone is talking about “the coal fired outage” but about half the wind power running at the time was also lost, and over the […]