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 on Friday 13th June 2025.
It’s fitting to book-end the week with a look at frequency performance overnight (into Saturday 31st May 2025) with two coal unit outages in NSW overnight to see what happened in terms of more...
A short note because of a 295MW drop in output from Loy Yang A3 just prior to 14:06 (NEM time) on Tuesday 20th May 2025.
We take a quick look, after AEMO noted that at 13:51 (NEM time) the New England Solar Farm No.1 and No.2 both tripped.
A quick record of unit trip at CPP3, and associated frequency drop, on Friday 4th April 2025.
A quick record of a unit trip at Bayswater Power Station on Wednesday afternoon 5th March 2025.
Whilst looking at system frequency, there was an apparent trip of the Callide B2 unit in the early hours of Wednesday morning 19th February 2025.
A short note to flag the apparent trip of Callide C3 just prior to 06:35 (NEM time) on Wednesday 20th November 2024.
Partly prompted by a comment yesterday from a WattClarity reader (Liam), and powered by 'next day public' data, we take a look at Yallourn Power Station on Tuesday 12th November 2024.
Another 'interesting' event today ... a dip in mainland frequency with trip of Loy Yang A2.
Clements Gap Wind Farm was one of the wind farms in SA that appeared to trip unexpectedly on Thursday evening 17th October 2024. We take a quick look.
Using 'next day public' data in ez2view, here's an initial replay of 7 dispatch intervals on Thursday evening 17th Oct 2024 in South Australia.
A quick look at a small drop in frequency seen on Wednesday 16th October 2024.
A quick record of the trip of Loy Yang A1 unit just prior to 08:40 (NEM time) this morning … Friday 11th October 2024:
A short article looking at a small drop in system frequency on Wednesday 2nd October 2024, perhaps related to Bayswater unit 3 tripping offline.
A quick contemporaneous record of the trip of the Tarong North Power station unit on Monday evening 19th August 2024.
It's Monday 8th April, the two Eraring units that tripped last week are back online - and I wonder what the cause of the coincident trip was?
Fourth article on Wed 3rd April 2024, pertaining to the earlier coincident trip of ER01 and ER02 units at Eraring Power Station.
AEMO Market Notice 115944 notifies that the coincident trip of ER01 and ER02 was at 13:22 NEM time on Wednesday 3rd April 2024.
In this second short article for the day, we Time-Travel ez2view back to 4 x Dispatch Intervals surrounding the coincident trip of ER01 and ER02 at Eraring Power Station.