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...
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...
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...
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 quick note to point readers here to the AEMO news update ‘AEMO progressing transitional system security services’ published today (Friday 24th October 2025).
A short article looking at the NSW region in early afternoon Wednesday 22nd October 2025.
A short note (on Wednesday morning 22nd October 2025) about the Severe Weather warnings (from WeatherWatch, and then from AEMO).
In Part 3 of this series with respect to Thursday 16th October 2025, we focus on when a large collective under-performance across all Semi-Scheduled Wind Farms and Solar...
At 07:55 (on Monday 20th October 2025), an unplanned outage of Dapto - Marulan (8) 330 kV line led to the unplanned invocation of the 'N-DTMN_8_15M' constraint set.
A quick note, on Monday morning 20th October 2025, showing the re-emergence of price forecasts up near the Market Price Cap for a 90-120 minute period this afternoon/evening.
A short note to flag MN129813 looking forward to next Saturday 25th October 2025, flagging possible MSL1 in Victoria.
Following a series of Market Notices from AEMO with respect to forecast LORx conditions for NSW next Wednesday 22nd October 2025, we take a first look.
A very quick article to record the price spike (for ENERGY) in the NSW region at 14:55 earlier today (Friday 17th October 2025) ... and Contingency Lower in...
In this guest article, Matt Grover from Fluence draws on operational data and real-world trading experience to unpack how Australia’s grid-scale batteries performed across three June 2025 peak...
Having already noted the ‘Weakness in frequency stability on Thursday afternoon 16th October 2025’, we take a look at the causes - for the four high-profile dispatch intervals.
In this article we inspect power deviations from dispatched units that would have contributed to the frequency rise, and the deviations that would have contributed to the correction.
The worst periods of frequency stability on Thursday 16th October 2025 were *not* with the simultaneous trip of YWPS3 and YWPS4, but rather later and the day -...
A quick follow-on early Friday morning 17th October 2025 to note that both YWPS3 and YWPS4 made it back online overnight.