… but ER02 return to service hit a snag (Thu 16th May 2024) – now possibly out until Tue 21st May 2024

Yesterday afternoon we’d written ‘Eraring Unit 2 commences return-to-service startup’ with the unit switching back on at ~15:20 NEM time on Thursday 16th May 2024.

Unfortunately it seems to have hit a snag, as shown in the ez2view ‘Notifications’ widget alert – showing the unit switched off from 30MW (FinalMW at 18:30) to 0MW (FinalMW at 18:35):



(A)  Looking at more detail in the bids

Taking more of a look with the ‘Bids & Offers’ widget in ez2view we see the following recent history:


Note the rebid reason mentioning ‘ID fan limitation’.

… not sure if this was the reason for the need to come back offline?

With the two rows in the ‘Bid Table’ selected, we can use the comparison function in ez2view to open ‘Bid Details’ widget to compare the two bids selected:


This highlights that the it was for the rebid received at AEMO at 18:33 that the change was made for the unit to remain offline for the rest of the Market Day.


(B)  How long might the unit now be offline?

It’s only ~07:45 Friday 17th May 2024, so too early for the first run (i.e. for 09:00) of the MT PASA DUID Availability data set, so there’s no change in the forward-looking data in the ‘Generator Outages’ widget.

But we can use the Available Generation aggregate for NSW to see if there’s a noticeable change in successive ST PASA runs – via the ‘Forecast Convergence’ widget in ez2view:


Remember that this widget allows one to ‘look up a vertical’ to see ‘that other dimension of time’.

As per the annotated image, understanding that it’s a little like reading the tea leaves, it might be apparent in the data that the current expectation is the unit will be out until Tuesday morning 21st May 2024.

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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