A quick status update, early on Thursday 31st August 2023, about issues at Azure (caused by a power surge) that has been affecting AEMO (and our) systems.
In this article we delve in deeper on Thu 30th Jan and Fri 31st Jan 2020 … two days that saw extreme levels of ‘Aggregate Scheduled Target’ (i.e. AggSchedTarget – a requirement for firming capacity). A timely review, given two developments arriving tomorrow (on Thursday 31st August 2023).
The change to use MaxAvail from the energy bid, for semi-scheduled units, was implemented on 7 August 2023.
2 x AEMO Market Notices this afternoon prompt this article about four upcoming Market Enhancements … with the first to planned to commence from next Monday 7th August 2023
A quick note on WattClarity to tie in an update (earlier this month) from CS Energy on the rebuild of the cooling tower for Callide C3 and C4.
A quick look at elevated prices mid afternoon on Monday 3rd July 2023.
The ‘Australian Energy Week’ conference this week in Melbourne, and the NEM this evening has given a real-time example of some energy transition challenges.
For several reasons we take a look at a transmission outage in southern NSW that contributed to some volatility seen in QLD and NSW in the second half of May … and might also do in the second half of June 2023.
More updates recently about the Callide C power station. Looks like we’ll be waiting a while longer for the (delayed again) return to service…
AEMO has confirmed our earlier hunch of a Scheduling Error in the immediate aftermath of the Liddell unit retirements.
A quick article to capture volatility in QLD and NSW on Wednesday evening 24th May 2023.
During early morning Monday 1st May prices spiked in the NSW quite unexpectedly. Guest author Allan O’Neil takes us into the complexities of the EMMS and NEMDE to help us understand the mechanics of how this happened.
Here’s where to find AEMO’s preliminary report on the loss of SCADA on 22nd April 2023 in Victoria that led to that region being suspended for more than 24 hours.
Taking a second look at the very early morning volatility in the NSW region on Monday 1st May 2023, we’ve used the ‘Constraint Dashboard’ widget in ez2view to get so far … and then added some *speculation* about how it might have been related to the retirement of Liddell from market systems. Is this accurate?
Another short article today presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on 16th February 2021 (the largest incidence of collective over-performance at that time).
Another short article today (from GenInsights Quarterly Update for Q3 2022) presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on 23rd August 2022.
Another short article today (also from GenInsights Quarterly Update for Q1 2023) presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on Friday 20th January 2023.
A short article today (whilst in the midst of finalising GenInsights Quarterly Update for Q1 2023) presenting an overview of Aggregate Raw Off-Target (AggROT) for Semi-Scheduled units on Friday 3rd February 2023.
In an event (that seems) similar to 17th March 2023, a glitch in SCADA leads to the suspension of the market in the Victorian region on Saturday afternoon/evening 22nd April 2023.
We delve deeper into dispatch availability self-forecasts and the assessment process to further enhance our understanding of this important aspect, testing sensitivity to gate closure times and requirements on minimum intervals.