South Australian pylons after120kph winds
Queensland pylons after 290 kph
South Australian Premier Weatherill flat out defending the indefensible.
“South Australia hasn’t seen a storm like last week’s in living memory,” Mr Weatherill said. “Those images of transmission lines bent over showed just how powerful the wind was.”
No, those images show just how flimsy the infrastructure was. I put more concrete around the base of my fence posts than the SA guys did around their pylons.
Yes, the storm produced the blackout but there's more to it than that. The wind turbines closed down before the pylons were knocked out and the sudden drop in power from wind caused a huge instant demand from the Victoria connector. It closed down to protect the Victorian energy system.
If SA had coal or gas generators on line it wouldn't have blacked out.
From Graham Llloyd
in The Australian
quoting a report from the AEMO
A dramatic, sudden loss of wind power generation was the root cause of South Australia’s state wide blackout last week.
And the bulk of damage to high voltage transmission lines that was caused by high winds and paraded as evidence to defend renewables most likely took place after the power had been lost.
These are the major facts contained in the Australian Energy Market Operator’s (AEMO) preliminary report.
But AEMO said data currently available indicates that the damage to the Davenport to Brinkworth 275 kV line on which 14 towers were damaged “occurred following the SA Black System”.
The big event was a 123 MW reduction in output from North Brown Hill Wind Farm, Bluff Wind Farm, Hallett Wind Farm and Hallett Hill Wind Farm at 16.18.09.
Seconds later there was an 86 MW reduction in output from Hornsdale wind farm and a 106 MW reduction in output from Snowtown Two wind farm.
Renewables are fine so long as there is a base load source to maintain the grid. Green left wing state governments are outbidding each other in taking us along the road to renewables without listening to engineering advice.
They will cost us dearly.
Link here to The AEMO Report
. Greenies should read it and ponder.