(As at February 2026*) this is one of three different constraint equations that are members of the ‘N-AVMN_16’ constraint set
… which is invoked when there is an outage on the Avon to Marulan (16) 330kV line in southern NSW.
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Regarding the (*) note that constraint set (and equation) formulation can (and does) change over time, so you’d need to use ez2view Time-Travelled to a particular dispatch interval to understand the formulation of the constraint set at that time.
As noted in this NEMwatch snapshot at 13:35 (NEM time) on Friday 6th February 2026, a very similar pattern (perhaps including similar behaviours) is emerging today, with similar afternoon volatility in NSW.
On Tuesday we posted ‘A brief overview of the situation in NSW on Saturday 10th January 2026 (prior to further analysis)’. In this article, we delve more into (large-scale) battery operation in NSW through the period of volatility.
Noting that the ‘N-AVMN_16’ constraint set is (including some intermissions over the duration) slated to be invoked out until the middle of March 2026.
Today in NSW we saw large price spreads, material network curtailment, wild swings in demand, and several other factors unfold. This article summarises some of the high-level drivers of today's events.
A very quick article to record the price spike (for ENERGY) in the NSW region at 14:55 earlier today (Friday 17th October 2025) ... and Contingency Lower in QLD.