2021 – 25th May – Callide C4 Explosion, Fire and Outage

A collection of articles that began on Tuesday 25th May 2021, when Callide C4 unit exploded, which:

1)  Led to loss of supply from sister units Callide C3, and B2 and B1 – but also others close

2)  And also blackouts for a sizeable amount of Queensland due to under-frequency load shedding

3)  And a very long repair process

4)  Hence some concerns about the supply-demand balance, and prices

5)  And an insolvency of one of the JV owners

6)  There also was a lengthy process to report on the original cause of the explosion.

In this category we collate an expanding range of articles related to one or more of the above.








Callide C Catastrophic Failure

Carl Daley from EnergyByte, provides more insight into the events of last Tuesday, which culminated in widespread blackouts throughout Queensland.













Loss of ~2000MW of demand in Queensland on Tuesday 25th May

A quick snapshot from NEMwatch at 14:20 today highlighting the loss of approximately 2000MW of demand this afternoon – dropping the level of Scheduled Demand down to 3,775MW: The AEMO Market Notice highlighted says: ——————————————————————- MARKET NOTICE ——————————————————————- From :             …