Evening volatility again in QLD and NSW on Thursday 5th May 2022

For the fourth evening in a row this week, we’re seeing volatility in the QLD and NSW regions … and elevated prices in VIC and SA as well.  Here’s a snapshot from the 16:55 dispatch interval in NEMwatch :


Without looking in too much detail at all, I suspect that similar conditions are occurring across NSW and QLD as occurred (with respect to the supply stack) on Tuesday 3rd May.

I did not (earlier this afternoon in discussions with a client) that the ‘N-RVYS_2’ Constraint Set* has been extended now till Saturday evening 7th May at 18:00 … whereas I’m pretty sure when I looked on Monday it was forecast to end tomorrow (Friday) evening.

* the ‘N-RVYS_2’ Constraint Set contains the offending ‘N::N_RVYS_2’ constraint equation that is limiting flow north on VIC-to-NSW to zero or negative numbers … i.e. flow south

This is noted here in this snapshot from ez2view:


It looks like this constraint set was modified at 05:49 this morning … but the MMS by default does not recall the prior status.

About the Author

Paul McArdle
One of three founders of Global-Roam back in 2000, Paul has been CEO of the company since that time. As an author on WattClarity, Paul's focus has been to help make the electricity market more understandable.

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