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.
‘N^^N_NIL_3’ constraint equation
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…
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.
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’.