How common are islandings and transmission tower failures in the NEM?
In light of recent events, Dan Lee does some digging to find historical incidences of islandings and transmission tower failures.
Detailed Analysis
Who drove FCAS on the island
Close to $31.5M of revenue was generated in the FCAS markets in SA over the seven days that the region was frequency separated from the rest of the NEM. This follow-on from Allan O’Neil’s earlier article investigates this final figure.
What was the total cost of ‘keeping the lights on’ across the NEM in June?
Dan Lee provides some exploratory calculations in order to estimate the total cost of maintaining electricity supply throughout a very turbulent June.
AER identifies (at least) 9 discrete factors contributing to the extreme price outcomes (and other concerns) through Q2 2022
With the AER having released its 'Wholesale Markets Quarterly' for Q2 2022 yesterday, I skimmed and saw 9 discrete factors flagged ... each of which contributed to the extreme (price and scarcity) outcomes seen through Q2 2022.
AEMO QED highlights (at least) Eight Factors contributing to extreme price outcomes in Q2 2022
On Friday morning 29th July 2022 the AEMO is releasing its 'Quarterly Energy Dynamics' for Q2 2022 - I've flipped through an embargoed copy and have highlighted here eight different factors flagged by AEMO that have each contributed to the extreme price outcomes seen through...
On the fringes: the outer edges of the NEM remain the most prone to volatile MLFs
To mark the end of the financial year, Dan Lee writes this explainer about MLFs and gives some examples of noticeable long-term MLF trends within the NEM.
Pricing and dispatch during market suspension
Marcelle explores how settlement prices are set and how dispatch is operating during the current market suspension.
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.
A briefing on GenInsights21 for Smart Energy Council members
Next Tuesday 5th April 2022 the Smart Energy Council has organised us to provide a briefing on GenInsights21, and what we can learn from this to inform the energy transition.
The Generator Statistical Digest 2021 (GSD2021) is released
We're please to note that the Generator Statistical Digest 2021 (a.k.a. GSD2021) is available to clients from Monday 28th March 2022.
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...
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 that renewables will increasingly play in the NEM in the years...
How should the AER’s wholesale monitoring responsibilities change, to suit the changing market environment?
On Tuesday 21st December 2021 the AER requested the AEMC to consider changing the prescriptive requirements in the Rules for the AER to analyse particular types of market outcomes in particular ways, and instead provide the AER more flexibility in what its analysis covers.
GenInsights21 released, on Wednesday 15th December 2021
It's Wednesday 15th December 2021 and we have released GenInsights21 (a deep dive exploration, asking what history can tell us of the challenges and requirements of the accelerating energy transition).
Initial look at the latency of all rebids
Following from some analytical work performed in testing for Five Minute Settlement, here's a view of latency of rebids (all DUIDs, all commodities) in recent months that prompts a number of questions...
Is the predictability of day-ahead demand improving?
Day-ahead demand forecasts will be integral to any future 'Ahead Market'. We take a look at the current state and accuracy trend of demand forecasts made 24 hours ahead as part of the broader piece of work to feed into GenInsights21.
Potential Tripwire #3 When is a load not a load?
A feature of the upcoming EMMS technical specification that distinguishes demand response units from scheduled loads could impact some users of NEM data, if left unmanaged.
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.