The frequency of coal generation events in 2025
A count of coal generator events indicates large unit trips are less frequent.
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‘June 12 was one of the most challenging days of the last 4 years’
It was with interest that one of our team members noted David Osmond’s comment earlier today when he said 'June 12 was one of the most challenging days...
A dose of evening volatility across the mainland, on Wednesday 18th June 2025
Here’s a snapshot from NEMwatch at 17:35 on Wednesday 18th June 2025 as food for further discussions at 'Energy Week' in Melbourne tomorrow.
The Non-Confidential Report (182 pages) into the Iberian blackout
Earlier today we wrote about the ‘News Release on the blackout on the Iberian Peninsula...’. Here's the report (which we could not find at the time).
News Release on the blackout on the Iberian Peninsula (on 28th April 2025) suggests overvoltage was the cause
On Tue 17th June 2025 (local time) a news release has been made to suggest a report into the April 2025 power outage on Iberian Peninsula has been...
Frequency wobbles on Tuesday 17th June 2025
A quick look at two particular instances of (relatively small) frequency disruption on Tuesday 17th June 2025.
Which units show large positive Dispatch Error for 15:40 on Monday 16th June 2025
Following on from Linton's article (about the frequency drop at 15:40 on Monday 16th June 2025) we take a look at the largest harmful Dispatch Errors across the...
Drop in mainland frequency on 16 June 2025
In reviewing system frequency on the 16th of June, 2025, we observed a drop that reached below the NOFB.
We need more research on storage trading
In this guest post, Greg Williams calls for more research into how storage bidding—particularly auto-rebidding—is reshaping price formation and competition as flexible assets take centre stage in the...
AEMO launches consultation to update Negative Residue Management automation procedures
The AEMO has kicked off a consultation to overhaul its automated negative residue management processes ahead of Project Energy Connect forming a new transmission loop in the NEM.
Three units at Yallourn Power Station offline on Monday morning 16th June 2025
Taking a look at the three of the Yallourn Units offline on Monday morning 16th June 2025.
Trading Places … BW01 offline, with BW04 online
With BW04 returned to service on Sat 14th June 2025, worth noting that sibling unit BW01 came offline on Sunday afternoon 15th June 2025.
What’s all this, then, about Gas-Powered Generation in Victoria in the past week
Over the past week (and particularly Wednesday 11th June 2025 and Thursday 12th June 2025) gas-power generation ran strongly in Victoria. So we take a quick look at...
AEMO ‘Industry Go Live Plan’ for ERI and ST PASA Recall Period
Belatedly noting the AEMO's publication of the Industry Go Live Plan for the ERI and ST PASA changes.
AEMO publishes Draft Report (Security Enablement Procedure – Improving Security Frameworks)
Yesterday (Friday 13th June 2025), the AEMO published both a Draft Report, and Draft Procedures for Security Enablement (as part of the ISF changes in 2025)
With some wobbles, Bayswater Unit 4 coming back online – Saturday 14th June 2025
Noting that Bayswater unit 4 had a false (re)start in the early hours of Saturday 14th June 2025.
AEMO (also) forecasts LOR2 for QLD on Monday 16th June 2025
Earlier this morning we noted AEMO forecasting possible LOR2 for QLD on Tuesday 17th June 2025 (in the middle of the day!). Well, at 11:52 on Friday 13th...
AEMO updated forecasts for Tuesday 17th June 2025 show possible LOR2 for Queensland (in the middle of the day!)
On Friday morning 13th June 2025 the AEMO forecasts possible LOR2 in Queensland for Tuesday 17th June 2025 ... in the middle of the day!
Sharp drop in frequency on Friday morning 13th June 2025, with trip at Newport Power Station
I’ve not yet had time to fully investigate, but thought it worth recording the sharp drop in frequency that appears to have occurred shortly after 07:30 NEM time...
Brief summary of outcomes (Price, Demand, IRPM and more) for Thursday evening 12th June 2025
Because it proved useful in providing a tabular summary for Wednesday evening 11th June 2025, in this article I've done a similar thing here with respect to Thursday...