The release of GSD2023 supports a deep dive into its 10-year FCAS history section. We inspect three units of differing technology and make use of the data extract to uncover trends in participation.
It was an article in the AFR, on the 6th of February 2024, that drew our attention back to generator closures. Engie have announced the early closure of Snuggery and Port Lincoln Power Stations.
The methodology used to assess performance of AEMO's longer-term forecasts is under review via the consultation process.
The supply side rose to meet the new peak demand level in QLD on 22nd Jan 2024.
Six observations from a chart summarising how capacity, availability and volumes enabled have changed over the early phase of the very fast FCAs markets, since commencement on October 9, 2023.
A bout of severe weather for many parts of south-eastern Australia brought challenging weather conditions which appear to have impacted variable renewable energy forecasts for the NEM. The case study delves into forecast differences...
The very fast FCAS markets started on 9 October 2023 and now a Basslink outage presents a confusing situation for required and enabled levels.
The requirement for the very fast raise contingency service is set to increase to 100 MW. We review availability and bids to consider the impact.
A year ago we reviewed the market outcomes of wholesale demand response (WDR) in the NEM. It’s been 2 years now, providing a new milestone from which to review participation and impact. Can we...
The results of the recent MTPASA (Medium-Term Projected Assessment of System Adequacy), published on 17 October 2023, led a declaration of low reserve conditions in Market Notice 110284.
The new 1-second FCAS markets have been operational since the 9th October. We take a look to find out how it has fared.
Very Fast FCAS, because it operates at a faster timescale, can arrest the rise or fall in frequency more rapidly than the current fast service and therefore provides an avenue to mitigate the costs...
Spot price volatility was experienced in Queensland and New South Wales on 4th September 2023.
A week's worth of data provides indications of how semi-scheduled generators are using bid MaxAvail to manage dispatch availability.
It is indispensable to understand how the semi-scheduled unit availability gets produced to optimally manage the critical inputs and comprehend dispatch outcomes. This article explains the key inputs and processes, focusing on the dispatch...
The change to use MaxAvail from the energy bid, for semi-scheduled units, was implemented on 7 August 2023.
Don't forget about FCAS when the energy market starts to steal the spotlight.
Light winds and a constrained interconnector contributed to elevated prices on 1 August 2023.
AEMO is re-enabling the ‘MaxAvail’ figure in bids for Semi-Scheduled units. It will act as a limit on capacity available, feeding into the NEMDE dispatch process for the unit. We look at how Semi-Scheduled...
A quick note to show the last dispatch interval of output from Lidell Unit 4, with the two remaining units slated to follow suit in the coming days.