For two remarkable winter evenings in 2007 (19th and 20th June specifically) NEM-Wide Instantaneous Reserve Plant Margin (IRPM) plunged to the lowest levels ever seen in the NEM (a mere 7.6%) as generators were caught short of capacity by a cold snap that hit earlier than expected, whilst plant was still out for maintenance and other plant still suffering from drought-inflicted limitations of capability.
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Paul McArdle
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Paul McArdle Thu 2nd June 2022
Very tight supply-demand (NEM wide!) on Thursday 2nd June 2022
NEM-wide IRPM is dropping lower and lower on Thursday 2nd June 2022
Paul McArdle Mon 9th January 2006
3rd January 2006 – Outages force QLD price to VOLL
The week started with commotion in Queensland, when the VOLL price ceiling was reached.
Further analysis revealed that this was due to transmission system events and the trip of several generation units within Queensland.
Paul McArdle Tue 20th January 2009
SA nears the Cumulative Price Threshold
On 19th January, high prices were sustained in SA for several hours, bringing the Cumulative Price within a whisker of the $150,000 threshold, at which prices would be capped.
Paul McArdle Sat 29th August 2020
Victorian Scheduled Demand plunges in the middle of the day, Saturday 29th August 2020 (a new daytime record low in NEM times?)
Have not checked thoroughly, but a quick scan suggests that the low point for Victorian Scheduled Demand at 13:05 today was a new record for minimum (daytime) demand. If it is, this would be an uncanny coincidence given …
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