Price volatility returns to the Queensland region

Following from Monday evening’s price wobbles, we saw more volatility yesterday in the Queensland region as shown in this custom chart generated in ez2viewAustralia:

The largest spikes were in the evening, but note that there were a number of other spikes of various magnitude through the day.  Here’s a record (from NEM-Watch) of one of the two largest spikes in the day – to $7,200/MWh at 16:30:

Here’s an intriguing view of bid stacks (from ez2viewAustralia) separated across the $7,200/MWh pricing that was material to the evening’s price spikes – showing how (at several times through the day) capacity was shifted above, and then back below, that price threshold:

We have not looked into the smaller spikes – but may do later, if time permits.