Very fast FCAS, 2024 in review
A 2024 review of the trend in the very fast FCAS services captures enablements, availabilities and costs.
Fast Frequency Response (FFR)
Very fast FCAS markets continue to grow
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...
The *other* market change that went live today (Monday 9th October 2023)
A short note about the publication of a richer MT PASA DUID Availability data set in ez2view v9.8 - made possible as a result of the other change...
Very Fast Raise and Lower FCAS markets to start on 9 October 2023
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...
Enablement of ‘MaxAvail’ in the Bid for Semi-Scheduled units to go live (Mon 7th or Tue 8th Aug 2023) … and other enhancements in future
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...
AEMC published Final Rule on Fast Frequency Response (FFR)
A quick note following AEMC publication of final determination on Fast Frequency Response (FFR).
Moving from mandatory PFR to an arrangement that’s more durable
A quick synopsis of some market reforms at the AEMC relating to system frequency.
Observations of differences in system frequency in the Mainland NEM (comparing 2019 to 2021)
One of the many data sets being crunched as part of our analytical efforts underpinning the development of 'GenInsights21' is system frequency. In this short article today, we...
FCAS goes from fast to very fast
Just under 3 weeks ago (on 22nd April 2021) the AEMC published a draft determination that would establish 'Fast Frequency Response' as an additional (i.e. 9th and 10th)...
Do you know the difference between Virtual Inertia and Fast Frequency Response?
Our guest author Stephen Sproul looks at how the Dalrymple Battery Energy Storage System (BESS), currently the only source of virtual inertia on the NEM, responded to the...
Fast Frequency Service – Treating the symptom not the cause?
The National Electricity Market (NEM) is designed to operate at 50 Hz. Frequency deviation occurs when generation and load are mismatched. It is important in a lightly meshed...