The AEMO began publishing actual intermittent generators (SCADA) availability data: (a) to the EMMS Data Model in the Production environment from August 13th 2024 and (b) to NEMWeb from August 14th 2024.
A brief run of high energy prices in SA on 4th June 2024 was observed in the evening. Energy prices as projected in the predispatch runs from earlier in the day had threatened to...
In part 2 of a Case Study about Thursday 22nd February 2024 - specifically looking at Aggregate Dispatch Error across all Semi-Scheduled units (and in this part 2 looking just at 14:15).
Finding some time to make some progress in compiling GenInsights Quarterly Updates for 2024 Q1, here's a short Case Study of Thursday 22nd February 2024 (a day that saw significant collective under-performance of Semi-Scheduled...
Following a presentation with the CEC, Linton shared some insights into FCAS Regulation costs for wind and solar units over last calendar year.
Dan Lee takes a deeper dive into network and economic curtailment, and shares some charts and data maps that demonstrate seasonal effects, and the geographic spread of units affected.
Our GSD2023 was released just over 4 weeks ago. Finally today I have a chance to utilise the GSD2023 Data Extract to take a look across all the Semi-Scheduled units (i.e. Wind and Solar)...
The second article today (falling out of analysis for GenInsights Quarterly Update for 2023 Q4) presenting a long-term trend of the incidence of large instances of Aggregate Raw Off-Target across the growing number of...
Also from GenInsights Quarterly Updates for 2023 Q4, the particular case of Tuesday 31st October 2023 is also worth sharing (and a broad audience understanding).
Returning a focus to GenInsights Quarterly Updates for 2023 Q4, here's a particular example from Sunday 24th December 2023 worth sharing (and a broad audience understanding).
Looking back at Tuesday 13th February 2024 there's consistently large aggregate under-performance (compared to Target) across all Semi-Scheduled units in the NEM through daylight hours. The reason for the increased procurement of Regulation Raise.
With Challicum Hills Wind Farm recently celebrating its 20th anniversary, Dan Lee takes a look into the long-term trend of technical and commercial performance of the oldest wind farms in the NEM.
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...
A brief article as a first Case Study looking at Friday 18th August 2023, in conjunction with the compilation of GenInsights Quarterly Updates for 2023 Q3.
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.
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...
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...
Inspired by the recent article by Tristan Edis (who referenced the GSD2022 in analysis of curtailment of some wind and solar farms), Allan O'Neil follows on with more analysis of the two main types...