We’ve selected three dispatch intervals through the long run of volatility in the QLD and NSW regions on Thursday 7th November 2024 to help illustrate:
1) How the issue of ‘congestion’ or ‘constraints’ in the NEM is so complex;
2) But also why it’s so significant to price and dispatch outcomes.
An initial look at the ‘out of the blue’ price spike in QLD at 14:30 on Thursday 21st December 2023.
A quick look at how restrictions in southern NSW meant that Victoria could not export to NSW through the afternoon … hence contributing to the tight supply-demand situation.
In between other jobs today, we’ve taken a look at why the price spiked yesterday (Tue 20th April) in QLD … at an earlier time than we had become accustomed to seeing it occur in recent months.
Alerted to a price spike at 09:45 this morning in the QLD region, we discovered some reduction in load (spot-exposed Demand Response probably) and also a large collective trip in Solar Farm output (reasons unclear).
Took 2-3 times longer than planned (as there were a few different interesting observations that came out) but here is our initial – and perhaps only! – review of what happened in South Australia on Thursday 19th December 2019 (i.e. yesterday).