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.
Semi-Scheduled Generation
“Rise of the Machines” – the increasing role of auto-bidding and self-forecasting in the modern-day NEM
On Thursday 17th March, Jonathon Dyson presented at the CEC Wind Industry Forum in Melbourne about the increasing role of auto-bidding and self-forecasting in the modern-day NEM. In this article, he shares some of the key points from that presentation.
Rooftop PV output during QLD’s heatwave week 2022 – Part B
In this article we look more closely at 1st and 2nd February 2022 – and particularly at where and when the changes in rooftop PV occurred, narrowing our assessment to south-east Queensland regions. It follows on from Part A which inspected how Queensland rooftop PV output varied at the state level.
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.
Interim boost to wind and solar in South Australia from ElectraNet’s new Synchronous Condensers
From 10:00 today (Friday 10th September 2021), ElectraNet’s new synchronous condensers (which have been under testing) will be deliver a boost to Semi-Scheduled units in South Australia.
Cyclone in Western Australia douses solar production in South Australia on Tue 13th April 2021
Looking back at Tuesday 13th April 2021 – a day in which the ex-tropical cyclone Seroja in Western Australia caused some wobbles in rooftop solar PV output in South Australia.
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.
AEMC publishes Rule Determination on Semi-Scheduled Generators
This morning the AEMC has published its final rule focused on clarifying how Semi-Scheduled generators should follow dispatch targets – including in dispatch intervals where prices are negative, and some had been unexpectedly switching off.
AEMO publishes Handbook for Wind and Solar Generators
As promised in the Intermittent Generation Forum late in 2020, the AEMO has released an important Handbook for operators of Semi-Scheduled (wind and solar) assets.
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 data.
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 NEM’ for Wind Farms.
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 NEM’ for Wind Farms.
Constraint Case Study Followup – Early outcomes of the new “X5 constraint”
On 25th November, guest author Allan O’Neil examined the ‘X5 Constraint’. Two weeks of operation have passed, so now Allan reviews some of what’s happened.
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 NEM’ for Wind Farms.
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 NEM’ for Wind Farms.
AEMC publishes draft rule change for Semi-Scheduled generators
Today (Thu 19th Nov 2020) the AEMC published a draft ruling following the AER request for a rule change relating to Semi-Scheduled generators … which itself followed from two COAG Energy Council requests to them
AEMC proceeds to fast-track consideration of the AER’s semi-scheduled generator dispatch obligations rule change
A brief note to inform readers that the AEMC is fast-tracking consideration of the AER’s Proposed Rule Change on Semi-Scheduled assets … but also to reinforce our view that the challenge is MUCH broader than is being addressed here.
Case Study of 16:55 on Monday 8th April 2019 (aggregate Raw Off-Target +318MW for Semi-Scheduled units)
This 20th Case Study (the other side of the weekend to the 19th Case Study) in the series investigates one dispatch interval showing extreme Aggregate Under-Performance across all Semi-Scheduled units on Monday 8th April 2019.