This article from Nadali Mahmoudi and Liam Atkinson from EPEC Group looks at whether the Dinawan–Darlington Point 330kV upgrade, dismissed in 2022, would have delivered greater system strength benefits than what was recognised at the time.
It’s also worth explicitly calling out the increase in minimum LHS factors (from 0.07 to 0.15) that also went live yesterday (Tuesday 2nd December 2025).
Not long after speaking with a client about forecast evening volatility in NSW for Wednesday 15th January 2025, we see price spikes beginning at 14:00 in the afternoon. So we take a first look....
An article today referencing the VEPC paper 'No longer lost in transmission' (about extended VNI-West, and the authors proposed alternative 'Plan B') and the AEMO's initial response.
From 16th March 2023 the infamous 'x5 constraint' has been split into two. We quickly showed previously that the design of the Left Hand Side (LHS) does not vary. In today's article, valued guest author Allan O'Neil takes a look at what is different.
From 08:00 (NEM time) this morning, the old 'X5 constraint' (i.e. formerly formally known as 'N^^N_NIL_3') has been split into two (i.e. addressing separately risk of tripping of either/both Bendigo to Kerang 220kV line and Bendigo to Shepparton 220kV line). Here's a first quick look...
In Part 2 of this Case Study, we look at those 15 x Semi-Scheduled units highlighted with large deviations (mostly under-performance) at 17:05 on 27th October 2022 in order to understand more.
A quick article to document a spike at 11:10 on Monday 31st October ... which seems related (at least in part) to the same network outage as on Friday evening.
As a real time reminder of the energy transition challenges, the trip of Origin's Eraring unit 2 was a significant driver of the price spike in NSW to $15,100/MWh on Tuesday 21st February 2022.
In this (lengthy) article today, Paul McArdle uses the newly released GSD2020 to take a look at the units that were most frequently impacted by constraints during calendar 2020 - with a view to how this has changed from 2011 to 2020.
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.
Given the great interest in the new 'X5 constraint', guest author, Allan O'Neil, has invested some time to pick the new constraint equation to understand (and then explain) what it is, how likely it will be to bind, and who is likely to be affected.
From tomorrow (Fri 20th Nov) market participants in south-western NSW and north-western VIC will need to grapple with yet another transmission constraint seeking to 'constraint down' their output when it's sunny and/or windy. This one is named 'N^^N_NIL_3'.