As a further update on outage expectation for the damaged YWPS2 (which tripped with 'LP turbine issue' on Tue 26th August) the latest return to service expectation is now not until 22nd October 2025.
As another case of frequency disruption on the mainland grid, we spotted this trend occurring just before midday on Friday 29th August 2025.
An updated look (as at 14:10 on Thu 28th Aug 2025) of expected return to service for YWPS2
As the 5th article in an evolving series that progressively explores the (apparent self-forecasting glitch and) frequency spike on Tuesday 19th August 2025, we take an early look at Solar Farm performance.
A very short article with a snapshot from ez2view at the 11:15 dispatch interval – highlighting that Lower 1-second FCAS prices in the South Australian region are spiking (yet again!).
A first article about an unplanned (and potentially significant) outage at Yallourn unit 2 that began on Tuesday 26th August 2025 due to 'LP turbine issues'.
A short note with a snapshot of the ‘Generator Outages’ widget in ez2view (at 08:30 on Wed 27th Aug 2025) to highlight some coal units offline.
Following from the release of the 2025 ESOO last Thursday, the subsequent weekly MT PASA run warns of *forecast* LRC (and unserved energy) in South Australia.
An article in the Australian by Colin Packham prompts a look in AEMO data about expectations for when Tamar Valley CCGT might be switched off.
On Sunday 24th August 2025, Administered Pricing for FCAS in South Australia ended ... when will the ‘S-TBTU’ constraint set re-emerge?
Earlier today we trended the incidence of large Aggregate Raw Off-Target across all Semi-Scheduled units. In this updated tabulated list, we list each of the largest instances from January 2024 to June 2025.
It's ~18 months since we took a look at the trend of large instances of Aggregate Raw Off-Target across all Semi-Scheduled units. In this article we update the analysis with data to 30th June...
The (concerning) frequency spike across the NEM in the middle of the day (Tuesday 19th August 2025) has triggered many proximate questions - understandable - but also has raised these 3 Broader Questions.
On Thursday 21st August 2025 (a week earlier than I'd anticipated) the AEMO has released its 2025 ESOO.
Amongst the news articles this morning that are energy related was one noting a possible delay to the closure of Torrens Island. We take a quick look...
With Administered Pricing in South Australia ongoing today, we take a longer-term look (across the past ~50 days) in the escalating pressure on Cumulative Price for LOWER1SEC FCAS in South Australia.
Part 3 in an evolving series of articles about a series of the network outage(s) on the Tailem Bend - Tungkillo 275kV line that's driven LOWER1SEC prices through the roof and triggered Administered Pricing...
With Administered Pricing of all 10 x FCAS products in South Australia continuing into Monday 18th August 2025 (no surprise there), we take a second look.
On the weekend we noticed the release of the 2025 Victorian Transmission Plan, and thought it worth flagging here.
Another quick article for Sunday 17th August 2025 – this one noting a new 'lowest ever*' point for 'Market Demand' in Queensland, just shaving prior record from a year ago.