The Australian Energy Market Operator has released the Black System South Australia 28 September 2016 Report. The Report establishes the chain of events that led to 850 000 customers in South Australia losing access to power. Intense winds damages two separate transmission lines causing them to activate protection trips. This led a reduction in power from nine wind farms. Compensatory energy was accessed from the Victorian Heywood Interconnector but a protection trip was also activated when demand exceeded supply resulting in a substantial black out across the state.
The Report found that wind turbines were not at fault in destabilising the energy system, rather the protection trips were responsible for cutting power. The Australian Energy Market Operator therefore recommends increasing the resilience of the through nineteen recommendations including greater weather forecasting and preparatory strategies, modify interconnector transfer limits, and review the system restart process.
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