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129MWhr Battery Doing its Job Down Under.

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Impressive so far,

https://www.dailymail.co.uk/sciencetech/article-8082841/Elon-Musks-Tesla-battery-farm-saved-South-Australia-116-MILLION.html


Z.
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    One of the main issues here is overload, be it transient due to a fault on the transmission system or the trip of one or more generating sets. With rotating plant, the rotating mass has inertia, and will not instantly slow down when you overload it. It will supply a significant overload as it slows. An inverter however will be sized for its rated output and be very poor at trying to provide more than 100% of its rating. The net effect is that the system frequency will fall rapidly, and lead to the sort of issues we had last August. The system stability figure gives you the time (usually measured in seconds) that you have to resolve the issue by either adding generation or reducing load. Often load is shed, as that provides the fastest correction to balance load with generation. In terms of the battery, if it was supplying 50% load, or even charging, it could fairly quickly ramp up to 100% load. If it had been supplying 100% load, then it is unlikely there would be any more to be had. 


    Regards,


    Alan.
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  • 0
    One of the main issues here is overload, be it transient due to a fault on the transmission system or the trip of one or more generating sets. With rotating plant, the rotating mass has inertia, and will not instantly slow down when you overload it. It will supply a significant overload as it slows. An inverter however will be sized for its rated output and be very poor at trying to provide more than 100% of its rating. The net effect is that the system frequency will fall rapidly, and lead to the sort of issues we had last August. The system stability figure gives you the time (usually measured in seconds) that you have to resolve the issue by either adding generation or reducing load. Often load is shed, as that provides the fastest correction to balance load with generation. In terms of the battery, if it was supplying 50% load, or even charging, it could fairly quickly ramp up to 100% load. If it had been supplying 100% load, then it is unlikely there would be any more to be had. 


    Regards,


    Alan.
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