Prices in QLD and NSW rise into the four digit mark on Thu 10th Apr 2025
Elevated prices struck QLD and NSW for the fourth night in a row - with spot prices climbing above the $1,000MWh mark briefly this afternoon.
All Posts
Mainland system frequency on April 10, 2025, associated with VIC transmission outage
High speed frequency measurements provide a deeper understanding of how the system responded to the unplanned 500kV line outage.
A boost in transfer capacity with PEC Stage 1
Worth capturing MN126466 published at 11:12 today with respect to PEC Stage 1.
AEMO Market Notice 126465 notes transmission link back in service
Third article about the large drop in demand in Victoria observed on Thursday morning 10th April 2025.
Another long forced outage at Callide C3 … April 2025
First article about the latest long forced outage for Callide C3 - beginning April 2025.
AEMO Market Notice 126464 confirms trip transmission (linked to the APD smelter)
Second article about the large drop in demand in Victoria observed on Thursday morning 10th April 2025.
582MW (instantaneous?) drop in ‘Market Demand’ in Victoria delivers large System Frequency spike – Thursday 10th April 2025
Noting a large 582MW drop in ‘Market Demand’ in Victoria this morning (Thu 10th April 2025) – as captured in this ‘Notification’ alert in ez2view at 08:31 (NEM time).
Short burst of high prices in QLD and NSW on Wed 9th Apr 2025
A string of SMS alarms alerts us to another burst of high prices in the two northern regions, early this evening
First address by QLD’s new Energy Minister (David Janetzki) at Queensland Energy Club on Tuesday 8th April 2025
Yesterday (Tue 8th April 2025) we were pleased to be able to host a table at the biggest Queensland Energy Club lunch event of all the ones that we’ve attended. Here's a summary...
A few stories in (coal) generator outages (at Wednesday 9th April 2025)
Here a view of the ‘Generator Outages’ widget in ez2view at the 07:55 dispatch interval on Wednesday 9th April 2025.
Guest Authored Posts
The challenge of imperfect foresight: Storage operation in a highly renewable NEM
Josh Boegheim from Powerlink discusses the limitations of perfect foresight assumptions for system planning—and shares results from a recent study that simulated energy storage dispatch using deterministic and stochastic forecasting approaches.
The growing NEM BESS fleet: Who is controlling all this capacity, anyway?
Matt Grover from Fluence shares insights into the NEM's growing big battery fleet and what it means for the market and their operators. This article follows on from his keynote at the ESS two...
Detailed Analysis
Interconnector intricacies: double and triple auto-clamping of pesky negative residues
Dan looks at some recent and peculiar auto-clamping behaviour of interconnectors, and walks through the market arrangements causing these occurrences.
A quick review of Queensland bidding over recent days (incl Wed 22nd Jan 2025)
Whilst we're waiting to see where 'Market Demand' lands for Friday 24th January 2025 (we might report that later), I was curious in terms of supply-side performance of units over the past 4 days...
Very fast FCAS, 2024 in review
A 2024 review of the trend in the very fast FCAS services captures enablements, availabilities and costs.
Mainland grid frequency: cat ears and golf
It was captured by a keen eyed reader, that the distribution of mainland grid frequency in recent times now exhibits cat ears.
Four NEM-related themes from COP29
After returning from COP29 in Baku, Dan shares his thoughts about energy transition challenges in international electricity markets, and how they intersect with what we're seeing in the NEM.
Down for the count: eight separate transmission tower failure incidents in less than five years
A map of where the eight separate transmission tower incidents have occurred over the past five years.
So long solo solar, and hi hybrids?
A summary of the key challenges facing standalone solar and wind farms over the past several years, along with discussion and thoughts about whether new rules surrounding hybrids systems will address these.
What the last twenty years of the ESOO tells us about blackout predictions
After skimming through the last twenty editions of the ESOO over the past couple of days, Dan shares some thoughts about what has and hasn't changed over the years.