Grid frequency on 13th February 2024
Grid frequency had dropped to 49.689 Hz. We take an initial look into the timeseries of grid frequency recorded on the day.
Articles by Linton Corbet
Linton is a Senior Software Engineer and Market Analyst, who joined Global-Roam in August 2020.
Before joining the company, Linton worked at the Australian Energy Market Operator (AEMO) for seven years, including four years as an analyst within their demand forecasting team. Before entering the energy sector, he worked as an air quality scientist in the Czech Republic.
GSD 2023 Uncovers Features in FCAS Enablement and Bidding
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.
Engie announces early closure of two dispatchable South Australian power stations
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.
2024 Consultation on Forecasting Accuracy Report Methodology
The methodology used to assess performance of AEMO's longer-term forecasts is under review via the consultation process.
Supply side delivers to meet record demand in Queensland on 22nd Jan 2024
The supply side rose to meet the new peak demand level in QLD on 22nd Jan 2024.
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 9, 2023.
Case Study – Severe Weather Challenges Day-Ahead Forecasts for 7, 8, 9 September 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...
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.
Demand Response as Market Participant: Square Peg in Round Hole?
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...
Low reserves projected post Eraring closure… and earlier?
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.
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.
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...
Spot price volatility in the evening of 4th September 2023
Spot price volatility was experienced in Queensland and New South Wales on 4th September 2023.
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...
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.
Looking back at FCAS on 1 August 2023
Don't forget about FCAS when the energy market starts to steal the spotlight.
Price volatility in SA on August 1, 2023
Light winds and a constrained interconnector contributed to elevated prices on 1 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...