PLEA Network

19 October @016, Renew Economy, Storm of controversy erupts over AEMO blackout report. Another storm of controversy about the role of wind energy is certain to erupt after the latest report about the state-wide blackout in South Australia by the Australian Energy Market Operator. In its second update, AEMO has pointed the finger at settings on certain wind farms and fossil fuel generators in the events immediately before and after the state-wide outage last month, but the handling of the report has also raised questions about the actions of the market operator itself – both before and after the event. The report dismisses suggestions – mostly from the Coalition and mainstream media – that it was the intermittent nature of wind energy that was the cause of the blackout. But it also underlines the failure of the market operator to make any preparations for the storm that it could obviously see spreading across the state. The AEMO makes clear that it was major voltage disturbances – six in 80 seconds – caused by the collapse of three major transmission lines that led to the blackout. “Five transmission line faults, resulting in six voltage disturbances on the network, led to the SA region black system,” it writes. But – not for the first time – AEMO’s press release and executive summary differs in emphasis to the detailed report, and focuses on the role of the so-called “self protect mechanisms” in wind farms rather than major voltage collapse that followed the collapse of the transmission lines. Even though these self protect mechanisms are just a matter of software and are easily fixed, AEMO’s emphasis has horrified many in the wind industry, who suggest that the market operator is deliberately allowing wind to be blamed even though its report highlights a collapse of voltage that could have been the main cause of the outage. They also point to basic errors in its report, and its failure to take any preventative action as the storms approached. Read More here