* with apologies to Prince
A couple of our avid readers have emailed in about the (still slightly) unusual price outcomes seen across the NEM at 13:05 on Sunday 21st July 2019, with dispatch prices down at $0/MWh across the mainland regions – with Tassie going 1 cent better and being –$0.01/MWh.
Here’s a view of that dispatch interval shown in ez2view wound back to yesterday using Time Travel:
I’ve annotated with a few of the more complex bits of the way in which that particular dispatch interval unfolded – some of which is only** visible on a “Next Day Public” basis.
* * though note that a participant using ez2view on their own MMS will receive the Semi-Dispatch Cap and (private) constraint notices in real time
As noted elsewhere over the weekend:
#1 we’ve been thinking through specific cases like this, and more generally “what happens when energy is free” for some years.
#2 in our Generator Report Card, we invested significant time and energy in investigating the widening gap between Service 1 and Service 2 in the NEM – and the implications for what this means for the success (or otherwise) of the energy transition. Dispatch Intervals like this are part and parcel of that difference.
#3 many will point at instances like this as demonstration of the need for storage – and, whilst that is true to a certain extend, we’re wary of any particular ‘solution’ being held up as a magic wand. In the Generator Report Card we also invested considerable time and energy exploring how storage has performed in the first 20 years of the NEM – with implications for how it might contribute into the future.
That’s all I have time for today…