Back on 25th May 2021, problems at the Callide C4 unit escalated to a wider issue that led to UFLS when multiple other units tripped offline in quick succession. The Callide C4 unit is offline for repairs, and not expected to be back online until early 2023.
To add to the pieces of the puzzle being collated on WattClarity here about the event and the aftermath, it’s great to see that the AEMO has released its Incident Report into what happened on the day:
We’ll be reading through this with keen interest!
PS1 on 8th October 2021
I notice that Christian Zuur has written ‘Never waste a good crisis – learnings from the Callide event of 25 May 2021’ on LinkedIn prompted by the release of the AEMO report.