It’s approaching 10 years since (in April 2016) we asked the question ‘What happens when energy is free?’. Well, this morning (Tuesday 4th November 2025) Minister Chris Bowen dropped the Media Release that speaks...
With respect to the ~17:00 period on Thursday 30th October 2025 (and the frequency drop, possibly outside the NOFB), we take a look at the Dispatch Error of individual Semi-Scheduled units to find patterns.
We take a second look at the frequency drop that occurred at ~17:01 (NEM time) on Thursday 30th October 2025.
Following this update on LinkedIn from CS Energy on Thursday 30th October 2025, we summarise outages at Callide B2 (two outages) and Callide C4 (one outage).
Loy Yang B1 has returned to service on Sunday morning 2nd November 2025 following a planned outage, not without some wobbles.
We’ve just noted the frequency drop on Friday afternoon 31st October 2025, and so take a look at 'Aggregate Dispatch Error’, to see if it's likely we are correct in our hypothesis - that...
Yesterday afternoon, we quickly noted the ‘Frequency drop on Friday afternoon 31st October 2025’. Now, we take a closer look to highlight the lowest point (outside of the NOFB).
A short record of the unplanned outage at Vales Point 6 - which came offline overnight into Tuesday 28th October 2025, and returned to service Friday 31st October 2025.
A short note with this snapshot of a 6-hour long frequency trace on Friday afternoon 31st October 2025, to capture what looks like another VRE-induced frequency wobble earlier this afternoon.
Earlier on Day 2 at All Energy in the ‘National Electricity Markets’ session there were a number of interesting presentations, including one from David Dixon.
A short note about today's graveyard shift session titled ‘Pushing Boundaries: Navigating Market Reform for a modern, efficient, and secure electricity system’ at All Energy. A session that was particularly worthwhile for me.
A short article highlighting some frequency wobbles on Thursday afternoon 30th October 2025.
In a repeat of yesterday, the AEMO has again directed for System Strength in NSW on Thursday 30th October 2025.
On Sunday (following from the discussion at the NEMdev conference in Brisbane a few weeks ago, and leading into this week’s All Energy 2025 in Melbourne) I highlighted these ‘Two *big concerns* that we...
It's day 1 of All Energy 2025 today (Wednesday 29th October 2025) , and the day will have already started - but I thought it would be topical to note another direction for System...
A short note to capture the trip of Callide B2 on Tuesday 28th October 2025 in the five minute period prior to 21:01 (NEM time) that day.
The Callide C4 unit tripped from 420MW in the 5 minutes to 18:36 (NEM time) on Sunday evening 26th October 2025, delivering a sharp drop in mainland frequency.
With All Energy happening this week in Melbourne, plus the clock ticking down on preparations at the Nelson Review Panel for their final report, I've reached back to the NEMdev conference to write about...
In Part 4 of this evolving Case Study, we take a closer look (using 4-second data) at the 12 x offending Semi-Scheduled units that appear to have played a large role in driving frequency...
A quick note to point readers here to the AEMO news update ‘AEMO progressing transitional system security services’ published today (Friday 24th October 2025).