Drop in NEM Mainland Frequency appearing to coincide with trips at New England Solar Farm, on Saturday 19th April 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.
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AEMC draft determination, about ‘Allowing AEMO to accept cash as credit support’
A little over 2 weeks ago (on Thu 3rd April 2025) the AEMC made a draft determination on the rule change proposal by Delta Electricity to allow AEMO...
AER suspends the MIC component of STIPS following review
On Thursday 17th April 2025, the AER published its Final Decision on the Service Target Performance Incentive Scheme (STIPS) for transmission companies.
Three units at Bayswater (temporarily) offline, on Tuesday 15th April 2025
It’s not the first time that it’s happened in the history of the NEM, but worth noting that we're (temporarily) down to 1 x Bayswater unit online at...
Mainland system frequency in the afternoon of April 10, 2025
At 16:01 on April 10, 2025, a system frequency dip was observed from the Global-Roam frequency logger.
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.
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...
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...
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.
Price blip in QLD and NSW on Tuesday 8th April 2025
Following yesterday's (more sustained) volatility in QLD and NSW, here's a record of an evening blip in QLD and NSW on Tuesday 8th April 2025.
Evening volatility in NSW and QLD on Monday 7th April 2025
A very short article with this snapshot from NEMwatch at 17:50 (NEM time) on Monday 7th April 2025 to mark some evening volatility in NSW and QLD.
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...
Questions and concerns, about proposals to shift the ~23 second dead zone within the Dispatch Interval (ICF002)
5th article in a series, about the AEMO's ICF0002 initiative (and prior to tomorrow's EWCF Meeting) - to identify some questions and concerns.
There are actually several different ramp trajectories that are material to dispatch in the NEM
As promised in prior articles, here's an illustration of (some of the) different Ramp Trajectories considered in Dispatch within the NEM.