A quick look at Dispatch Error for each individual Coal Unit (at 03:05 on Thursday 2nd April 2026)

For today (Thursday 2nd April 2026) we’ve already noted:

Part 1)  the ‘(Close to) Full Load trip of Kogan Creek early on Thursday 2nd April 2026’, which showed:

(a)  the trip is visible in the 03:05 Dispatch Interval (NEM time) … remembering the building blocks of time;

(b)  with a Dispatch Error for the KPP_1 unit being +720MW … remembering:

i.  that a positive dispatch Dispatch Error represents underperformance, relative to Target

ii.  so acting to drag the frequency down…

Part 2)  … which we saw in this ‘first look at the frequency performance, with today’s trip at Kogan Creek’.

… noting that the trip occurred at 02:59:54.4 … :

(a) But too late to be registered for the FinalMW snapshot for KPP1 for 03:00, and (as such):

(b)  The 03:05 dispatch interval shows (via FinalMW) both:

i.  The effect of the trip; but also

ii.  The corrective responses of many units;

Part 3)  We have also noted peeled the first layer of ‘What helped (and what didn’t help) to contain the frequency drop with this morning’s Kogan trip?’

… noting that:

(a)  In aggregate terms, Batteries, (other) Coal units, Hydro and Gas all helped to support the frequency;

(b)  But Wind Farms in aggregate did not help.

In this short (Part 4) follow-on article, we present this single chart of the single dispatch interval (03:05 NEM time) for all of the operational coal units:

From this chart, three quick observations:

1)  The positive Dispatch Error for the KPP_1 unit (at +720MW) dwarfs the other individual responses

… which is understandable

2)  Most other operational coal units provided support via negative Dispatch Error

… several as large as ~-20MW

3)  But there’s a curiosity about a couple units still having positive Dispatch Error

… something to explore if time permits to peel another layer…