Pricing and dispatch during market suspension
Marcelle explores how settlement prices are set and how dispatch is operating during the current market suspension.
Articles by Marcelle Gannon
Marcelle worked as a Senior Software Engineer and Market Analyst for Global-Roam between 2020 and 2022.
Before joining the company, Marcelle worked as an Analyst at the Australian Energy Market Operator (AEMO) for two years, served as the Market Operations Manager at Tilt Renewables for three years, and also worked as a software engineer for several years before entering the energy sector. She graduated from the Master of Energy Systems program at the University of Melbourne in 2014.
Interconnector constraints and limits–an explainer, and a few traps
Limits on interconnectors play a key role in setting regional prices in the NEM. Marcelle finds a number of traps when interpreting the market data.
Who gets to run when everyone bids the same? A crash course in disorderly bidding and tie-breaking
Marcelle explores the little-understood concept in NEM dispatch of the tie-break principle, using the new 'Constraint Dashboard' widget in ez2view.
How are South Australia’s non-scheduled wind farms participating in the market now?
AEMO recently imposed additional dispatch obligations on six non-scheduled wind farms in South Australia. We take a look at what this means in practice.
What does the future hold for Wind and Solar in the NEM – seen via GenInsights21?
Following from the release of GenInsights21, in this article we look at some of what that analytical publication can help us understand, in terms of how the changing market is impacting on the role...
AEMC proposes PFR to remain mandatory–and big changes to causer-pays
The AEMC recently published a draft determination on Primary Frequency Response - proposing it remain mandatory, and to introduce big changes to the causer-pays process, including payments for good performance.
P30 Predispatch forecasts after 5-minute settlement–what do they mean?
30-minute pre-dispatch provides critical forward price information to the NEM - but what exactly will it mean after five-minute settlement? Marcelle takes a look.
Ranking wind farm performance and FCAS costs in the NEM in 2020
Which wind farms performed best in 2020? Marcelle extracts data from the GSD2020 to compare spot (and LGC) revenue, and FCAS cost performance, across wind farms in the NEM.
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) FCAS service in the NEM. We...
Ranking solar farm FCAS costs in the NEM in 2020
Following recent articles on spot market revenue earned by solar farms in the NEM in 2020, Marcelle takes a look at their FCAS costs.
Large-scale solar farm revenue in 2020 part 2 – considering LGCs
Marcelle extends last week's comparison of solar farm energy spot market revenue in 2020 by adding in an estimate of the LGC (green certificate) revenue.
A Comparison of Large-Scale Solar Farm Revenue in 2020
Which solar farms performed best in 2020? Marcelle compares spot revenue performance across the NEM.
Using the GSD2020 to explore operating patterns across generation types
With the release of the Generator Statistical Digest 2020, Marcelle Gannon takes a look at how it can be useful for identifying and exploring different patterns of generation.
Increasing the transparency and correctness of intermittent generation availability information to AEMO
Following up to AEMO's recent Intermittent Generator forum, Marcelle looks at the challenges for wind and solar farms in providing consistently good plant availability information to AEMO and the value of transparency of this...
PPAs aren’t as easy as they used to be!
This is the fourth of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy Council entitled ‘Maximising Profitability in the...
How does a wind or solar farm make money?
This is the third of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy Council entitled ‘Maximising Profitability in the...
Conformance and compliance–what’s the difference?
This is the second of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy Council entitled ‘Maximising Profitability in the...
Do you know your obligations as a Semi-Scheduled Generator?
This is the first of a short series of video snippets extracted from the 17th September 2020 presentation by Marcelle Gannon and Jonathon Dyson for the Clean Energy Council entitled 'Maximising Profitability in the...
Comparing spot revenue performance across wind farms
In a sneak preview of part of next Thursday's Clean Energy Council webinar, Marcelle compares the spot revenue performance of wind farms across the NEM.
Semi-scheduled generation–what are the real issues?
Marcelle digs into the data to find out what the real issues are in the AER's proposed rule change for semi-scheduled generators.