Nah, dirty unreliable old crap coalLooks like a weather...

Nah, dirty unreliable old crap coal

Looks like a weather event.
Perhaps the network was at it's most sensitive bushfire mitigation setting as a precaution.
Time will tell.
Possible scenario:
Passing storm and lightning strikes caused two transmission lines to trip.
Resulting in Loy Yang A having no connection to market so it trips to protect itself.
Triggering rolling blackouts to further protect infrastructure.

EMO ELECTRICITY MARKET NOTICE.
Significant power system event – 13 Feb 2024At 1308 hrs
13/02/2024 a significant power system event occurred.
Description of event – Multiple tripping of generation and transmission lines in the Vic region
Transmission element(s) tripped – Moorabool Sydenham No1 and No2 500 kV lines tripped
Region/s –
VicLoad interrupted – in excess of 1000 MW
Generation volume tripped – 2300 MW
Updates will be provided as additional information becomes available.
This Market Notice is issued in accordance with NER clause 4.8.3.
Manager NEM Real Time Operations