SA Islanding: Managing solar on the island
In our third guest authored post this week, Blake Ashton from SA Power Networks talks about the SA islanding event that occurred just over twelve months ago - how SAPN managed solar curtailment, and...
Market Reform
What’s happening around Wagga?
Guest author, Allan O'Neil, takes a detailed look at how VIC1-NSW1 transfer capability has been limited frequently due to constraints related to the 051 line in southern NSW, and what it means in terms...
Federal Government announces expansion of the Capacity Investment Scheme on 23rd November 2023
Energy Minster Chris Bowen has announced that the existing Capacity Investment Scheme will be greatly expanded. This article provides a summary of industry responses, news articles and social media commentary in regards to the...
Media Release = ‘Capacity Investment Scheme supports NSW to deliver 1 GW of cleaner, cheaper, more reliable energy’
The Media Release from the NSW Department of Energy on 22nd November 2023 noting 1,075MW of new firming capacity in NSW - targeting operational date of December 2025.
Challenges with a global-only FCAS requirement
The very fast FCAS markets started on 9 October 2023 and now a Basslink outage presents a confusing situation for required and enabled levels.
Very fast raise service to be expanded
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.
Very Fast FCAS – a week in review
The new 1-second FCAS markets have been operational since the 9th October. We take a look to find out how it has fared.
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 that goes live in the NEM...
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 an avenue to mitigate the costs...
AEMC proposes to progressively increase MPC to $22,800/MWh by 1 July 2027 (amongst other changes)
A short note about the AEMC's draft determination, published today.
Semi-Scheduled Bid MaxAvail – Initial Results
A week's worth of data provides indications of how semi-scheduled generators are using bid MaxAvail to manage dispatch availability.
What inputs and processes determine a semi-scheduled unit’s 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...
Discussion Paper released on Capacity Investment Scheme
On Friday last week (4th August 2023) the proposed design of the 'Capacity Investment Scheme' was published ... with submissions requested before Thursday 31st August 2023.
Implemented: Enablement of bid energy MaxAvail for semi-scheduled generators
The change to use MaxAvail from the energy bid, for semi-scheduled units, was implemented on 7 August 2023.
The proposed voluntary ‘Schedule Lite’ mechanism starts being deliberated at the AEMC
Today (Thu 3rd Aug 2023) the AEMC commenced a process of examining the proposed establishment of a 'Scheduled Lite' mechanism ...
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 2023
An imminent improvement to the bidding and dispatch process for Semi-Scheduled units
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...
AEMO’s MMS 5.2, ez2view v9.7, Semi-Scheduled MaxAvail in the Bid, and a self-forecasting example
Today (Tue 23rd May) is the go-live date for AEMO's EMMS v5.2 - which will contain new data for some market enhancements. Here's a quick look at where this first change will appear in...
AEMC publishes Rule Determination for amending the (earlier published) IESS Rule
A short, belated (and back-dated) article about the change to the original IESS Rule.
Timestamping Renewable Energy Certificates is a Bad Idea.
Tom Geiser argues against time-stamped Renewable Energy Certificates - and how the concept could impact trade, accuracy, market signals and other factors.