A quick look for updates about Waratah BESS, on Wednesday 17th December 2025

At Wednesday 17th December 2025, it’s approaching 4 weeks since Friday 21st November 2025, when we saw:

1)  Our article ‘Further thoughts (and questions) about Waratah BESS, two weeks after the snowball started to roll…’;

2)  Which was posted slightly before the article ‘Status update on Waratah Super Battery’ from Akaysha Energy.

 

Given that it’s close to Christmas, and there’s a forecast LOR2 for NSW tomorrow with the hot weather, I thought I would have a quick look to see if there was any further developments to spot about the battery – via this ez2view snapshot at 15:45 (NEM time):

With respect to the two widgets here:

1)  The left-hand window looks at the ST PASA version of the PASA DUID Availability data set:

(a)  We see the availability in ST PASA is now back to 350MW…

(b)  Which confirms that the brief planned outage noted on 21st November (that was due to end on 2nd December) did indeed end, with the unit returned to service … albeit at its not-yet-upgraded amount.

2)  The right-hand window shows the MT PASA DUID Availability data set, and specifically we see:

(a)  This data set is still 0MW out until 1st May 2026

… which will be 0MW (and not the 350MW devoted to the SIPS) because of this AER requirement.

(b)  Then at 350MW until 31st October 2026

i.  Which, we assume, is when at least one more transformer is expected to be returned to service

ii.  Though noting there is a short (4-day) full outage planned for September 2026

(c)  Before the capacity reported in MT PASA is slated to drop to only 150MW … which I’m guessing is a result of both:

i.  The assumption that the full 850MW installed capacity will be operational;

ii.  With the upgraded 700MW capacity reservation for SIPS deducted off this to leave 150MW that’s market-exposed.

 

There’s also no more recent news here from Akaysha Energy.