alt Hacker Newspower guys got surprised as rest of the grid load is human randomised and even huge factories will come on one chonk at a time, vs miilisecond co ordinated load switching at scale, with batteries as the load of the initial surge into even fully charged batteries can be almost infinite, and the whole calculation around grid scale turbines is that they run at very precise rpm's for stability and longevity, but worse, and a big fail, as battery storage is supposed to help with that, not be the problem. bet it gets fixed realy fast as those grid guys definitly get listened to.
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> as the load of the initial surge into even fully charged batteries can be almost infinite
There was an post a couple of days ago about a telco debrief of an interesting outage that happened. Several things went wrong like the audible bell was manually silence from being heard as a step in routine working but was forgotten to put back into normal mode once work was complete. The actual loss in power triggered the automatic switch to the batteries, but something else seemingly benign happened at the same time so that when power was restored, the batteries had been depleted to the point the charging process could not start because of something similar to this. I wish I could remember the write up, as it was really well written about the cascades of failures that occurred.
> grid scale turbines is that they run at very precise rpm's for stability and longevity
The turbines/generators set the grid frequency itself.
Having the batteries disconnect/connect would cause the generators to slow down and then speed up (or vice versa) which makes the rest of the grid frequency fluctuate as well.
It may also trigger the FCAS part of the grid that is paid to keep the frequency within the required range which is +/- 10mHz-200mHz.
https://mainsfrequency.com/frequ_info_en.php