On Tue, 10 Dec 2019 at 05:44, peter green wrote: > > Looking at the result it seems that a whole bunch of things went wrong, a > generator not enabled for automatic control, other generators responding > over-enthusiastically (increasing output to nameplate rating rather than = to > the rating that was sustainable in the circumstances) to automatic contro= l > and tripping out, a battery energy storage system responding > over-enthusiastically and tripping out, and finally a failure of the thir= d > stage under-frequency load shedding. > > Most of that. But it looks like even if they'd 'run what they'd brung' as well as they could have, they failed to bring enough initially because they failed to forecast what could quite possibly happen as well as they reasonably should have. The inadequate spinning reserve was a result of not putting online soon enough what was available when their rules said they should have. That said, i'ts always easy to see how wrong you were after the event :-) :-(. Failure to plan to keep the hospital up worst case seems hard to justify. CDB not quite as much. Alice is in the dead/red heart of Australia and very very very hot indeed for much of the year. It's a modern town indiscernible from most others on earth when you are in its midst, but surrounded by vast expanses of desert. Those who have never seen where Alice Springs is will probably find zooming out and out and out and out from here interesting: https://www.google.co.nz/maps/place/Alice+Springs+NT+0870,+Australia/@-23.7= 030404,133.8708504,1443m/data=3D!3m1!1e3!4m5!3m4!1s0x2b321944be8f1331:0x502= 17a82a254fd0!8m2!3d-23.698042!4d133.8807471?hl=3Den Solar array here: Just South of town. https://www.google.co.nz/maps/place/Solar+Centre+Desert+Knowledge+Australia= /@-23.7683077,133.8689274,371m/data=3D!3m1!1e3!4m8!1m2!2m1!1salice+springs+= solar!3m4!1s0x2b321b65a82d5581:0xe48d66de1fb2493a!8m2!3d-23.761841!4d133.87= 4934?hl=3Den Russell > > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .