In the week just passed, a number of the team at Global-Roam Pty Ltd appreciated the opportunity to participate in the 2026 CEC ACES conference and mini-exhibition. The day after it finished, we noted ‘Elevated prices in South Australia through the day on Thursday 30th July 2026’.
Prices have since subsided, but I thought it would be worth adding in these two week-long trends of fuel mix (from the ‘Trends Engine’ inside of ez2view) to summarise the duration of that particular event.
Firstly, with a trend of some NEM-wide fuel mix:
Those with a licence to the software can open their own copy of this query here.
With respect to the above, we see that prices were also a little more elevated in all other regions as well at times on Thursday 30th July 2026 (least effect in QLD).
Secondly, we add in this trend of the Fuel Mix just for South Australia
… in which case we also add into the chart net imports (just from VIC at this point, including via PEC Stage 1).
Those with a licence to the software can open their own copy of this query here.
With this chart:
1) It’s clearer:
(a) that prices in South Australia were quite low through the duration of Monday 27th and Tuesday 28th July 2026 (i.e. first day of 2026 CEC ACES)
… with many prices below zero, at the level of a (quite modest) ‘negative LGC’
(b) but climbed on the morning of Wednesday 29th July (i.e. day 2 of 2026 CEC ACES) and especially into the evening and overnight
2) Then were sustained through Thursday 30th July 2026.
… hence the earlier article that on Thursday evening
3) Dropping back downwards as the sun rose on Friday 31st July 2026:
… albeit still north of $100/MWh through most of the day
A useful real world example to book-end:
1) the topics of conversation at 2026 CEC ACES
2) and consideration of the remit for the incoming Energy Minister in a re-shuffled Labor Cabinet in Victoria.
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