Directions to disconnect some Victorian wind farms briefly for system strength
Directions to briefly disconnect three wind farms in Victoria for System Strength on morning of 28 October 2026
system strength
AEMO (briefly) directs Powerlink to disconnect Mt Emerald Wind Farm for System Strength reasons – Tue 29th September 2026
The need for AEMO to issue a Direction today (Tuesday 29th September 2026) to disconnect MEWF for System Strength, even if for just a limited period, makes this event noteworthy.
Powerlink directed to (temporarily) disconnect Lilyvale Solar Farm (on 2 consecutive days in July 2026) for System Strength
Yesterday (Wednesday 15th July 2026) we saw a somewhat similar case, via MN144556 at 12:55:34 (NEM time) with respect to the Lilyvale Solar Farm.
Three questions, in relation to the 3 x NSW batteries directed off for System Strength reasons
Yesterday we noted ‘TransGrid directed to (temporarily) disconnect 3 batteries for System Strength’. There are a number of questions that we (and others) are asking – but for now I’d just like to highlight three of them...
Reframing the grid discussion from system strength to system behaviour
Bruce Miller talks about why system strength is badly misunderstood. Through analogies using bridges, seeing eye dogs, and bumpy roads, he argues the industry's fixation on fault level and inertia misses the real engineering challenges of the transition — and risks costly, counterproductive fixes.
Direction for System Strength in NSW again–on Thursday 30th October 2025
In a repeat of yesterday, the AEMO has again directed for System Strength in NSW on Thursday 30th October 2025.
Another direction for System Strength in NSW (on Wednesday 29th October 2025)
It's day 1 of All Energy 2025 today (Wednesday 29th October 2025) , and the day will have already started - but I thought it would be topical to note another direction for System Strength in NSW.
AEMO changes mind, and directs Murray instead … but this was also short-lived?!
Less than an hour after directing Jeeralang (for System Strength in Victoria), AEMO changes its mind and directs Murray instead. Though this was also short-lived!
AEMO issues directions to units at Jeeralang Power Station, for System Strength in Victoria (Wednesday 15th October 2025)
As AEMO had telegraphed yesterday, just after 08:00 (NEM time) on Wednesday 15th October 2025, the AEMO issued Directions to various units at EnergyAustralia’s Jeeralang Power Station for System Strength in Victoria.
A quick review of AEMO direction for System Strength in NSW back on Thu 28th August 2025
With the need for an early morning direction flagged for NSW on Thursday 25th September 2025, we take a quick look back 4 weeks ago (to Thursday 28th August 2025) when it happened.
AEMO notes possible early-morning direction in NSW on Thursday 25th September 2025
Worth calling out MN129729 published on Wednesday 24th September 2025 at 14:29 about possible early-morning intervention in NSW for System Strength reasons
AEMO oscillates warnings – possible need to intervene in NSW on Thu 25th Sept 2025 for System Strength reasons
At 15:30 today (Tuesday 23rd September 2025) the AEMO flagged in MN129259 a possible need to intervene in NSW this Thursday 25th September 2025 due to forecast low System Strength.
Four answers we received during the 2025 Clean Energy Summit in Sydney this week
Dan provides his review for ACES 2025, and tries to answer some of the questions we were pondering going into the conference.
Transgrid’s Project Assessment Conclusions Report for System Strength released on Monday 14th July 2025
Transgrid's Project Assessment Conclusions Report for System Strength assessed more than 100 individual solutions aimed at helping to meet its system strength obligations under the National Electricity Rules.
AEMO notes ‘Update to system strength requirements in North Queensland’ to cater for 0 x Gladstone units online
With all 6 x Gladstone units expected to be offline by the end of the day due to Industrial Action, very timely that AEMO MN124047 notifies the market that 'The system normal equations have been revised to remove Gladstone >=1 requirement'
With YWPS1 and LYA2 back online, Victorian directions for System Strength cancelled
On Friday morning 15th November 2024 we see the return to service of both YWPS1 and LYA2 - coincident with the cancellation of Victorian directions for System Strength.
Why the directions (to 4 units) with 6 coal-fired units still online in Victoria?
We (and others) wondered, why the direction (especially for 4 units) to replace the System Strength from the ‘missing’ coal units?
AEMO directs 4 units on in Victoria, to cover System Strength shortfall
On Thursday morning 14th November 2024, the AEMO has directed 4 different units to operate, to cover a potential system strength shortfall in the Victorian region.
AEMO directions for System Strength in Victoria, on Thursday morning 24th October 2024
It's not (yet?) a frequent occurrence, so worth noting that AEMO has directed 2 units at Murray to synchronise and operate as a synchronous condenser from 08:00 (NEM time) on Thursday 24th October 2024 (to protect against low System Strength)
Eraring Power Station closure delayed by 2 years (or maybe 4?)
Thursday morning 23rd May 2024 saw a media News Conference and announcement that Eraring closure will be delayed until August 2027 ... or possibly as far out as August 2029.